Title of Invention	AN ALUMINIUM STRIP FOR LITHOGRAPHIC PRINTING PLATE AND A METHOD FOR PRODUCING AN ALUMINIUM STRIP
Abstract	This invention relates to an aluminium strip for lithographic printing plate supports, consisting of an aluminium alloy, the aluminium alloy has the following proportions of alloy constituents in wt.%: inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al.

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Aluminium Strip for Lithographic Printing Plate Supports The invention relates to an aluminium strip for lithographic printing plate supports, consisting of an aluminium alloy, to a method for producing an aluminium strip for lithographic printing plate supports and to a printing plate support. Printing plate supports for lithographic printing, made of an aluminium alloy, must satisfy very stringent requirements in order to be suitable for modern printing technology. On the one hand, it must be possible to homogeneously roughen the printing plate support produced from an aluminium strip, using mechanical, chemical and electrochemical roughening methods and combinations of the described roughening methods. On the other hand, the printing plates are often subjected to a burn-in process at between 220 and 300°C with a heating time of from 3 to 10 min after the exposure and development, in order to cure the applied photo layer. The printing plate support should lose as little strength as possible during this burn-in process, so that the printing plate supports continue to be readily handleable. The fatigue or bending cycle endurance of the printing plate supports furthermore plays a role during operation of the printing plate supports in order to be able to guarantee a long service life for the printing plate supports. Although the previously used AlMn alloys of the type AA3003, AA3103 have a good fatigue strength compared with the likewise used printing plate supports made of an aluminium alloy of the AA1050 type, the roughening performance during the preferably used electrochemical roughening is however poor, so that an aluminium alloy of the AA1050 type Is preferably used. A further development of the aluminium alloy of the AA1050 type is now known from the German laid-open specification DE 199 56 692 Al in the name of the Applicant, the aluminium alloy comprising the following alloy constituents in wt.% besides aluminium: 0.3 to 0.4 Fe, 0.1 to 0.3 Mg, 0.0 5 to 0.2b% Si, max. 0.05% Mn, max. 0.0 4% Cu. When producing lithographic printing plate supports from an aluminium strip with the composition mentioned above, it has now been found that a relatively high charge carrier input is needed before achieving homogeneous roughening, in particular for the preferably employed electrochemical roughening of the aluminium strip, so that the roughening process is very cost-intensive. It has furthermore been found that it is desirable to improve the mechanical properties of the aluminium alloy previously used to produce aluminium strips for lithographic printing plate supports. This relates in particular to the thermal stability of the printing plate supports after a burn-in process. Recent developments are aimed at increasing the manganese content of the aluminium alloy with the iron content remaining constant in order to achieve a nigher strength after the burn-in process. A corresponding aluminium alloy is known from the International Patent Application WO 02/48415 Al . However, increased magnesium and manganese values of the aluminium alloy also entail problems with the electrochemical roughenability. On the basis of this, it is an object of the present invention to provide an aluminium strip for lithographic printing plate supports, from which print, ing plate supports can be produced with an improved roughenability and at the same time improved mechanical properties, particularly after a burn-in process. It is also an object to provide a method for producing an aluminium strip (or lithographic printing plate supports, as well as corresponding printing plate supports. The aforementioned object is achieved according to a first teaching of the present invention by an a l.uminium strip consisting of an aluminium alloy, i.n that the aluminium alloy has the following proportions of alloy constituents in wt.%: 0 . 05% 0.00 8% 0.4% 0.05% CN Ti inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al. It has surprisingly been found that despite the high Fe content, the aluminium strip according to the invention on the one hand has very good properties in respect of eleotrochemically roughening the strip and on the other hand improved mechanical properties, in particular after carrying out a burn-in process. This is all the more surprising since the opinion in the specialist field was previously that there should only be an he content of at most 0.4 wt.% in an aluminium strip for 1 ithographic printing plate supports, so as to avoid causing nonuniform roughening of the; strip owing to coarse precipitate phases in the casting, welch are preferably attacked during the electrochemical toughening. It is likely that the precipitation of coarse phases in the casting does not occur for the aluminium strip according to the invention since a uniformly roughened structure is achieved by the electrochemical roughening. The Mg content of from 0.05 wt.% to 0.3 wt.% in the aluminium strip according to the invention ensures recrystallisation of: the aluminium alloy already in the hot strip, which loads to a globulitic grain structure with small grain diameters. This results in a reduction of situation effects during the electrochemical roughening. At the same time, the Mg content in the aluminium alloy increases the roughening rate in an electrochemical toughening method, although with an Mg content of: more than 0.3 wt. % the accelerated etching attack can lead to an inhomogeneously roughened structure and the roughening process becomes problematic. Particularly in conjunction with the relatively high Fe contents of from 0.4 to 1.0 wt.%, the Mn content of from 0.008 wt.% to 0.3 wt.% leads to an improvement in the thermal stability of the aluminium alloy, so that the strength of print ': ng plate supports produced from the aluminium alloy according to the invention after a burn-in process is increased. In combination with the high Fe content, the addition of manganese simultaneously leads to increased reactivity in the electrochemical roughening processes, but also in the pickling processes usually carried out before the electrochemical roughening. Overall, a lower charge carrier input is needed, for example in order to achieve complete roughening of an aluminium strip according to the invention, so that the process times for the electrochemical roughening and therefore the production costs for printing plate supports can be reduced. The Si content according to the invention of from 0.05 wt.% to 0.5 wt.% likewise affects the appearance of electrochemically roughened printing plate supports. If the Si content is too low, then too high a number of insufficiently small pits are formed in the aluminium strip. With too large an Si content, the number of pits in the roughened aJ uminium strip is too small. and the distribution is inhomogeneous. The Cu content of the aluminium alloy according to the invention must be restricted to at most 0.04 wt.% in order to avoid extremely inhomogeneous structures during the roughening. This also applies for the proportions of titanium usually entering the melt of the aluminium alloy via the grain refining materials. It is therefore necessary to restrict the TL content to at most 0.0 4 wt.%. Restricting the impurities of the aluminium alloy to individually at most 0.01 wt.% and in total at most 0.05 wt.% leads to further stabilisation of the properties of the aluminium strip for lithographic printing plate supports, particularly in respect of manufacturing tolerances of the composition of the aluminium alloy and its process properties. The aluminium strip according to the invention is therefore highly suitable for producing Lithographic printing plate supports since besides very good roughening properties, at the same time it provides very good mechanical properties, particularly after carrying out burn-in processes. A further reduction of the charge carrier input necessary for achieving a homogeneously roughened surface is achieved, according to a first advantageous configuration of the aluminium alloy according to the invention, when the ratio of the proportions of the alloy constituents Fe/Mn is from 2 to 15, preferably from 3 to 8. The reason resides in the increased number of specific Fe- and Mn-containing precipitates which, besides the mechanical and thermal properties, also positively affects the reactivity when roughening the aluminium alloy. If the aluminium strip according to the invention has an Mn content in wt.% oi 0.008% 0.008% their thermal stability after a burn-in process at the same time, the susceptibility to inhomogeneity after electrochemical roughening can at the sano time be reduced further. In the same way, the roughening behaviour of the aluminium strip according 10 the invention can be improved when the aluminium alloy has a Ti content in wt. % of at most 0.01%. Lastly, it has been found that the thermal stability of the aluminium strip can be improved further in respect of the strength values after a burn-in process when the ratio of the proportions of the alloy constituents Fe/Si is at least 2 . In order to improve the handleability of the printing plate supports produced from an aluminium strip according to the invention, according to a next advantageous embodiment, the aluminium strip according to the invention has a yield point Rp0.2 of at least 18 0 MPa and a tensile strength Rm of at least 190 MPa in the rolling direction and/or a yield point Rp0.2 of at least 190 MPa and a tensile strength Rm of at least 200 MPa transversely to the rolling direction at room temperature. If the aluminium strip according to the invention after a heat treatment at 240°C for 10 min. has a yield point Rp0.2 of at least 140 MPa and a tensile strength Rm of at least 150 MPa transversely to or in the rolling direction, then the aluminium strip according to the invention is suitable in particular for lithographic printing plate supports for particularly large printing runs, since these are intended to lose as little strength as possible after the burn-in process. The aluminium strip according to the invention is further improved according to a further configuration when the bonding cycle endurance of the aluminium strip in the rolling direction is more than 3000 bending cycles, preferably more than 3200 bending cycles in the rolling direction. The alluminium strip according to the invention achieves the said number of bending cycles in the rolling direction particularly in the mill-hard state and therefore significantly surpasses conventional aluminium strips in the mill-hard stale. The bending cycle endurance was measured by taking samples with a length of 100 mm and a width of 20 mm from the aluminium strip, with the longitudinal axis of the samples corresponding to the rolling direction. The samples were then subjected to alternating flexion by a machine over a radius of 30 mm and the number of bends until fracture was determined. The number of bends is a measure of the stability of a printing plate support manufactured from the aluminium strip during the printing process. In the present case, the number of bending cycles was determined statistically from 12 samples. The aluminium strip according to the invention therefore makes it possible to manufacture printing plate supports with a particularly long service life. A further extended service life of printing plate supports produced from the aluminium strip according to the invention is achieved when the bending cycle endurance of the aluminium strip after a heat treatment at 240°C for 10 min. in the rolling direction is more than 3300 bending cycles, preferably more than 3400 bending cycles in the rolling direction. The reason for the increase in the bending cycles resides on the one hand in the softening of the aluminium strip during the burn-in process but also on the other hand in the thermal stability of the aluminium strip according to the invention. Lastly, an electrochemical roughening process of the aluminium strip, which is usually carried out for producing printing plate supports, is improved when the aluminium strip has a surface comprising fine globulitic grains with more than 250 grains per mm2, preferably more than 350 grains per mm2. A fine-grained structure with the specified grain density leads to a more homogeneous appearance in the roughened or coated state. This accelerates the roughening process overall. The grain structure may, for example, be achieved by the production method according to the invention by rolling factors specially adjusted after intermediate annealing during cold rolling to final thickness. According to a second teaching of the present invention, the stated object is achieved by the use of an aluminium strip according t o the invention for producing printing plate supports. With respect to the advantages of the use according to the invention of the aluminium strip, reference is made to the comments above regarding the aluminium strip according to the invention. The object stated above is achieved according to a third teaching of the present invention by a method for producing an aluminium strip, in that a rolling ingot of an aluminium alloy having the following alloy constituents in wt. % : 0.05% 0.008% inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al is cast continuously or in batches, the rolling ingot is optionally preheated or homogenised before hot rolling, the rolling ingot is hot-rolled to form a hot strip and the hot strip is cold-rolled to final thickness with or without intermediate annealing. In this case, after casting, the casting skin of the rolling ingot is generally milled off in order to improve the purity and uniformity of the aluminium strip before the hot and cold forming, and the final rolling is earried out with finely ground steel, rolls. A heat pretreatment or homogenisation may preferably take place at temperatures of from 380°C to 600°C before the hot rolling. Furthermore, the hot strip final temperature is preferably between 280 and 370°C. A state optimised for processing the aluminium strip to form printing plate supports and their use is achieved according to another configuration of the method according to the invention when at least one intermediate anneal is carried out during the cold rolling and the rolling factor to final thickness is between 65% and 855 after the intermediate anneal. This sets up an optimised state between soft-annealed and mill-hard so that the aluminium strip on the one hand has sufficient strength values, in particular after a burn-in process. On the other hand, a fine-grained surface can be provided, so that a more homogeneous appearance is ensured after :.ne roughening. The final, thickness of the aluminium strip is preferably from 0.15 mm to 0.5 mm, in particular from 0.15 mm to 0.35 mm. Particularly in the case of small thicknesses, with an aluminium strip produced by the method according to the invention, an aluminium strip optimised for the production of printing plate supports can be provided, since it has an improved roughening behaviour together with improved thermal stability and improved strength values. In order to produce an aluminium strip for lithographic printing plate supports, the finally rolled aluminium strip is subjected to dogreasing with an alkaline or acidic medium after the rolling and the degreased aluminium strip is electrochemically roughened. The roughening of the aluminium strip is preferably carried out in baths of nitric acid HNO3 or hydrochloric acid HCl . Furthermore, the electrochemical roughening may also be carried out in mixed acid solutions. In order to prepare the finally rolled aluminium strip optimally for the subsequent electrochemical roughening process, particularly thorough degreasino is necessary. To this end, the aluminium strip is preferaoly degreased with a degreasing medium which contains at least 1.5 to 3 wt.% of a composition of 5 to 4 0 wt.% of sodium polyphosphate, 3 to 10 wt.% of sodium gluconate, 30 to 70 of sodium carbonate and 3 to 8 wt.% of a mixture of a nonionic surfactant and an ionic surfactant. The dogreasing medium ensures on the one hand virtually complete removal of possibly existing colling oil residues. On the other hand, the slightly pickking nature of the degroasing medium dissolves the rolling oxide layer of the aluminium strip. Lastly, the object stated above is achieved according to a fourth teaching of the invention by a printing plate support produced from an aluminium strip according to the invention, which has preferably been produced by the method according to the invention. As already mentioned above, printing plate supports according to the invention have an improved service life and an improved roughening behaviour compared with conventional printing plate supports. There are now many possibilities for refining and configuring the aluminium alloy according to the invention, the aluminium strip according to the invention and the method according to the invention for producing an aluminium strip for lithographic printing plate supports. To this end, reference is made on the one hand to the claims dependent on Claims 1 and 11 and on the other hand to the following description of exemplary embodiments . Table 1 now represents the studied aluminium alloys and their compositions in respect of the alloy constituents Fe, Mn and Mg. The aluminium alloys V402 and V404 have a composition corresponding to the prior art and are therefore used as comparative alloys. The rolling ingots consisting of the various aluminium alloys specified in Table 1 were hot-rolled to a thickness of 4.0 mm, after removing the casting skin and preheating, then subjected to cold rolling to a final thickness of 0.3 mm and optionally intermediately annealed between two cold rolling runs. Aluminium strips wore respectively produced in the H18 state with an intermediate anneal at 2.2 mm and in the H19 state without an intermediate anneal. Both the aluminium strips produced with intermediate annealing and those produced without intermediate annealing were subjected to tensile tests according to DIN EN 10002, which were carried out both at room temperature and after a burn-in process at 240°C for 10 min. The results of the tensile tests are represented on the one hand for aluminium strips with intermediate annealing in Table 2 (Test No. 1 to 8) and on the other hand without intermediate annealing in Table 3 (Test Ko. 9 to 16). For the aluminium strips produced with intermediate annealing, it is found by comparison between the comparative aluminium strips of Tests No. 1 and 3 that the yield point Ro0.2 and the tensile strength of the aluminium strips increase with increasing iron and manganese contents. The thermal stability, i.e. the yield point Rp 0.2 and the tensile strength Rm after a burn-in process, do root however change. In contrast to this, the aluminium strips according to the invention show in comparison with the comparative alloy strips of Tests Wo. 9 and 11 on the one hand an increase in the yield point Ro 0.2 and the tensile strength Rm and on the other hand likewise increased values for the yield point RpO. 2 and the tensile strength Rm after a burn-in process at 240°C for 10 min. The increase in the thermal stability due to the combination according to the invention of high Fe content and increased Mn contents in Tests No. 13 to 16 may be seen particularly clearly. Although with virtually identical Fe contents Tests No. 13 and 14 already show an increased yield point Rp 0.2 after a thermal burn-in orocess compared with conventional aluminium strips, the yield point Rp0.2 nevertheless rises further with an increasing Mn content as shown by Tests lb and 16. Surprisingly, the increase in the thermal stability after a burn-in process is particularly impressive especially with high Fe and Mn values (cf. Test No. 16) in the H19 state. The values for the yield point Rp 0.2 increase from below 140 MPa to about 150 MPa and those for the tensile strength from 140 MPa to about 160 MPa. Table 4 now represents the results for the roughening behaviour of the aluminium alloys according to the invention compared with the previously used aluminium alloys of Tests do. 17 and 19. The results of the roughening tests of the aluminium strips produced with and without intermediate annealing have been compiled qualitatively in the table. The roughening was carried out in an HNO3 bath, which in particular reacts more sensitively to striations or inhomogeneities which may occur. The roughening behaviour of the melts preferably used in the past, from Tests No. 17 and 19, were used as a reference for the level of the charge carrier input and were evaluated as satisfactory "o". A reduced charge carrier input to achieve surface-wide roughening was evaluated with a "t". A "+" therefore denotes a reduction of" the charge carier input, a " + + " denotes a stronger reduction and a "+++" denotes a substantial reduction of the charge carries input. The homogeneity of the roughening was furthermore evaluated. Here again, the aluminium alloys with Test No. 17 and 19 were used as a reference and evaluated as satisfactory "o". Particularly in the range of the Fe/Mn ratio from 2 to 15 and 3 to 8, respectively, the values of the charge carrier input for homogeneous roughening of the aluminium strip are reduced. In the tests under laboratory conditions, a reduction of the charge carrier input by up to 25% below the usua1 charge carrier input was achieved with the aluminium alloys according to the invention. Al the same time a further improved homogeneity of the roughening is found, especially in Tests No. 22 and 24. As a result, both the roughening behaviour and the homogeneity of the roughening can be improved substantially by the aluminium alloy according to the invention. Since the aluminium alloy according to the invention at the same time has good or oven better mechanical properties, particularly after a burn-in process, when producing printing plate supports not only more economical but also improved products, i.e. improved printinq plate supports, can be produced with a reduction in process times. Further studies were carried out on an additional exemplary embodiment of the aluminium strip according to the invention compared with a conventional aluminium strip for lithographic prinding plate supports. The alloy constituents of the aluminium alloys usee are reported in Table 5. Aluminium strips in the H18 state were likewise produced from the V486 and V488 melts, an intermediate anneal thus taking place during the cold rolling. In contrast to the previous exemplary embodiments, the rolling factor to final thickness after the intermediate anneal was restricted to 65% to 85%. The yield point Rp 0.2 and the tensile strength in the rolling direction (1) and transversely to the rolling direction (t) were measured as a function of the temperature of a burn-in process. The results are reported in Table 6. It is found that the aluminium strip according to the invention, in conjunction with the method parameters according to the invention, has an improved yield point both transversely and longitudinally to the rolling direction compared with the conventional aluminium strip, as expected. When studying the surface grain structure of the aluminium strip, it was moreover also found that despite the method parameters being the same, the aluminium strip according to the invention has a significantly smaller average grain diameter of 54 µm and the number of globu1itic grains on the surface is 391 per mm2. In this context, the conventional strip achieves only a grain number of 123 per mm2 with an average grain diameter of 95 µm. The grain stretching was similar for both aluminium strips, i.e. 2.3 (Al strip according to the invention) and 2.9 (conventional Al strip). The substantially finer grain structure of the aluminium strip according to the invention leads to a significantly more homogeneous appearance after roughening in electrochemical roughening. In the subsequently performed measurements of the bending cycle endurance in the rolling direction, the exemplary embodiment of the aluminium strip according to the invention produced from the V488 melt achieved 3390 bending cycles in the mill-hard state after burning-in at 240°C/10 min and even 4060 bending cycles after burning-in at 2 60°C/4 min. For comparison, the conventional aluminium strip produced from the V486 melt achieved only 2830 bending cycles when mill-hard and 2950 ana 3250 bending cycles, respectively, after burn-in processes at 240°C/10 min. and 2 60° C/4 min. The rise in the number of bending cycles is at max i rum about 25% compared with the conventional aluminium strip. Overall, a significant increase in the service lives of the printing plate supports produced from the aluminium strip according to the invention is thus possible. WE CLAIM 1. An aluminium strip for lithographic printing plate supports, consisting of an aluminium alloy, characterised in that the aluminium alloy has the following proportions of alloy constituents in wt.%: 0.05% 0.008% 0.4% 0.05% Cu Ti inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al. 2. An aluminium strip as claimed in Claim 1, wherein the ratio of the proportions of the alloy cdnstituents Fe/Mn is from 2 to 15, preferably from 3 to 8. 3. An aluminium strip as claimed in Claim 1 or 2, wherein the aluminium alloy has an Mn content in wt.% of 0.008% preferably 0.008% 4. An aluminium strip as claimed in any one of Claims 1 to 3, wherein the aluminium alloy has a Ti content in wt.% of at most 0.01%. 5. An aluminium strip as claimed in any one of Claims 1 to 4, wherein the ratio of the proportions of the alloy constituents Fe/Si is at least 2. 6. An aluminium strip as claimed in any one of Claims 1 to 5, wherein the aluminium strip has at room temperature a yield point Rp0.2 of at least 180 MPa and a tensile strength Rm of at least 190 MPa in the rolling direction and/or at room temperature a yield point Rp0.2 of at least 190 MPa and a tensile strength Rm of at least 200 MPa transversely to the rolling direction. 7. An Aluminium strip as claimed in any one; of Claims 1 to 6, wherein the aluminium strip after a heat treatment at 240°C for 10 min. has a yield point Rp0.2 of at least 140 MPa and a tensile strength of at least 150 MPa transversely to or in the rolling direction. 8. An Aluminium strip as claimed in any one: of Claims 1 to 7, wherein the bending cycle endurance of the aluminium strip in the rolling direction is more than 3000 bending cycles, preferably more than 3200 bending cycles in the rolling direction over a radius of 30 mm. 9. An Aluminium strip as claimed in any one of Claims 1 to 8, wherein the bending cycle endurance of the aluminium strip after a heat treatment at 240°C for 10 min. in the rolling direction is more than 3300 bending cycles, preferably more than 3400 bending cycles in the rolling direction. 10. Aluminium strip as claimed in any one of Claims 1 to 9, wherein the aluminium strip has a surface comprising fine globulitic grains with more than 250 grains per mm2, preferably more than 350 grains per mm2. 11. A Method for producing an aluminium strip for lithographic printing plate supports, in particular an aluminium strip as claimed in any one of Claims 1 to 10, characterised in that a rolling ingot of an aluminium alloy having the following alloy constituents in wt.%: inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al is cast continuously or in batches, the rolling ingot is optionally preheated or homogenised before hot rolling, the rolling ingot is hot-rolled to form a hot strip and the hot strip is subsequently cold-rolled to final thickness with or without intermediate anneals. 12.The method as claimed in Claim 11, wherein at least one intermediate anneal is carried out during the cold rolling and the rolling factor to final thickness is between 65% and 85% after the intermediate anneal. 13.The method as claimed in Claim 11 or 12, wherein the final thickness of the aluminium strip is from 0.15 mm to 0.5 mm, preferably from 0.15 mm to 0.35 mm. 14. A printing plate support produced from an aluminium strip as claimed in any one of Claims 1 to 10, which has preferably been produced in a method as claimed in any one of Claims 11 to 13. ABSTRACT TITLE " AN ALUMINIUM STRIP FOR LITHOGRAPHIC PRINTING PLATE AND A METHOD FOR PRODUCING AN ALUMINIUM STRIP" This invention relates to an aluminium strip for lithographic printing plate supports, consisting of an aluminium alloy, the aluminium alloy has the following proportions of alloy constituents in wt.%: inevitable impurities individually max. 0.01%, in total max. 0.05% and remainder Al.

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01534-kolnp-2008-description complete.pdf

01534-kolnp-2008-form 1.pdf

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01534-kolnp-2008-international search report.pdf

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1534-KOLNP-2008-(23-04-2012)-CORRESPONDENCE.pdf

1534-KOLNP-2008-ABSTRACT 1.1.pdf

1534-KOLNP-2008-AMANDED CLAIMS.pdf

1534-KOLNP-2008-CORRESPONDENCE 1.2.pdf

1534-KOLNP-2008-CORRESPONDENCE OTHERS 1.1.pdf

1534-KOLNP-2008-DESCRIPTION (COMPLETE) 1.1.pdf

1534-KOLNP-2008-EXAMINATION REPORT REPLY RECIEVED.pdf

1534-KOLNP-2008-EXAMINATION REPORT.pdf

1534-KOLNP-2008-FORM 1-1.1.pdf

1534-KOLNP-2008-FORM 18 1.1.pdf

1534-kolnp-2008-form 18.pdf

1534-KOLNP-2008-FORM 2-1.1.pdf

1534-KOLNP-2008-FORM 26.pdf

1534-KOLNP-2008-FORM 3 1.2.pdf

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1534-KOLNP-2008-FORM 5.pdf

1534-KOLNP-2008-GRANTED-ABSTRACT.pdf

1534-KOLNP-2008-GRANTED-CLAIMS.pdf

1534-KOLNP-2008-GRANTED-DESCRIPTION (COMPLETE).pdf

1534-KOLNP-2008-GRANTED-FORM 1.pdf

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1534-KOLNP-2008-GRANTED-SPECIFICATION.pdf

1534-KOLNP-2008-INTERNATIONAL EXM REPORT.pdf

1534-KOLNP-2008-INTERNATIONAL PRELIMINARY EXAMINATION REPORT.pdf

1534-KOLNP-2008-INTERNATIONAL PUBLICATION.pdf

1534-KOLNP-2008-INTERNATIONAL SEARCH REPORT.pdf

1534-KOLNP-2008-OTHERS 1.1.pdf

1534-KOLNP-2008-OTHERS PCT FORM.pdf

1534-KOLNP-2008-OTHERS.pdf

1534-KOLNP-2008-PA.pdf

1534-KOLNP-2008-PCT REQUEST FORM.pdf

1534-KOLNP-2008-PETITION UNDER RULE 137.pdf

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