Title of Invention

A GLYSOL 'G/V METHOD FOR COMPLETE RECYCLING OF GENERAL PURPOSE POLYSTYRENE HIGH IMPACT POLYSTYRENE, AND EXPANDABLE POLYSTYRENE

Abstract

Glycol-V method for complete recycling of general purpose polystyrene , high impact polystyrene , expandable polystyrene , comprising collecting any polystyrene material scrap of any density , crushed into any smaller size ., $. • in liquid form along with a suitable vehicle is sprayed over the scrap or dipped in the liquid to make highly concentrated homogeneous polystyrene sludge , above homogeneous sludge and solution a&he separated by using distillation process. A-methnH. as rlaimed in rlqim 1 and 7 wherein the, rhlnrinaliom of ar.etyleng A method as claimed in claim , wherein Siiydrocarbon is stable at 110 c and boiling temperature iagent, Glycol-V method for complets more than 100 c . . -A-rnethod as claimed in claime recycling of general purpose polystyrene , high impact polystyrene , expandable polystyrene

Full Text

FORM 2 THE PATENT ACT 1970, COMPLETE SPECIFICATION ( SECTION 10 ) Title;- A Glysol - V method for complete recycling of general purpose polystyrene high impact polystyrene , and expandable polystyrene , Vijay Shashikanth Namjoshi, 14-115, Unnath nager-2 (west), Mumbai , Maharastra -400 062 , India The following specification particularly describes the nature of this invention and ascertains the manner in which it is to be performed; 24-25-2004 Title ;- A Glysol - V method for complete recycling of general purpose polystyrene high impact polystyrene , and expandable polystyrene , Field of the Invention, The present invention relates to a method for complete recycling of general purpose polystyrene , high impact polystyrene , and expandable polystyrene , Back Ground and prior art, Polystyrene is plastic material having many uses and particularly useful , when foam form as a material for making , and general purpose polystyrene is widely used for water containers , frames boxes etc, and similar food services establishments , such establishments commonly use trays, container and cups made of polystyrene foam ( psf). Recycled polystyrene foam can be used to manufactured a wide variety of products such as high impact polystyrene used for cabinets , covers , etc, resilient to high impact. Expandable polystyrene is most popular widely used packing material because of its low weight to volume ratio and low cost. It is mainly used for packing of consumer durable , electronic goods , glass etc. It is also used to make disposable food containers , cups , plates etc, Polystyrene is derived from petroleum product .It is polymer derived from polymerisation of monomer . The polymerisation process can be hazardous if sufficient precautions are not taken . Any petroleum product and its derivatives are precious in terms of natural wealth country's foreign exchange . Processes of derivation of various petroleum products are health hazardous and are carried out under stringent temperature control . Most of the polystyrenes are non -biodegradable . Disposal is a major environmental problem . The incineration is hazardous and expensive methods in which stringent controls are involved .Proper ecological- friendly maximum recycling of the material is today's need . It will save nations foreign exchange , environment and will avoid problem of disposal of scrap . The density of expandable polystyrene varies from 0.013 gm . per cm3 to .04 gm per cm3 (at 20 c) and general purpose polystyrene it is between .8 to 1 gm per cm3 . UPTO No. 5197678 describes about the method of recycling specific materials from solid waste , using alcohol as spray , but in this method in cleaning and recovering has been done using liquid hydrocarbon spray used . Therefore it is an object of the present invention to provide a glysol-v method for complete recycling of general purpose polystyrene , high impact polystyrene , expandable polystyrene . Further object of the present invention to provide a method for recycling of expandable polystyrene is most popular widely used material because of its low weight to volume and low cast. Description ;- The present invention relates to a glysol -v method for the complete recycling of general purpose polystyrene , high impact polystyrene , expandable polystyrene , useful for water containers , frames boxes , etc, and resilient to high impact and expandable polystyrene popularly used for packing materials , comprising the following steps, Collecting any type of polystyrene material articles ( expandable polystyrene or any other type of polystyrene ) of any density between .013 gm per cm3 to 1 gr pert cm3 is crushed into a smaller particles of any size . A liquid form hydrocarbon along with any suitable vehicle is sprayed over the polymer scrap or the polymer scrap can be dipped in liquid hydrocarbon due to which a highly concentrated homogeneous polystyrene sludge along with is formed . the density of the solution can be between 1.6 to 2.2 gr per cm3 at 25 c ,this process is carried out at room temperature . The hydrocarbon liquid is derived by chlorination of acetylene at deviated temperature and then dehydrochlorination of the product is done , which is stable at 110 c , it gets boil at temperature more than 100 c. The resultant hydrocarbon can be recovered by the distillation process using suitable catalyst. There is no reaction involved but the molecules of polystyrene are brought more closer to each other in presence of solution molecules . there is no chemical reaction taking place , no gases are evolved , no temperature change in the process . The original molecular structure is retained . Molecular weight is ranging from 70000 to 104000 . During manufacturing of expandable polystyrene a blowing agent is used which is normally pentane . When the hydrocarbon is spread over the scrap , entrapped blowing agent is released without any oxidation or any chemical reaction . The molecular structure of polystyrene is ( C6H5CHCH2)n . molecular weight depends on value of n ( no. of molecule in polymerisation ). When hydrocarbon is spread over polystyrene scrap the molecules of polystyrene and molecules of hydrocarbon come closer to each other but do not react. Separation of polystyrene and hydrocarbon mixture is to be done by distillation method . Boiling temperature of polystyrene is 400C . It starts loosing its shape at 70 c . It starts flowing more as the temperature rises . the boiling temperature of the hydrocarbon and vehicle are below 300 c . It can be separated by distillation method . The hydrocarbon and vehicle is separated from polystyrene . The remaining polystyrene is in the molten state and can be moulded to the required form . I claim, 3 1. Glycol-V method for complete recycling of general purpose polystyrene , high impact polystyrene , expandable polystyrene , comprising collecting any polystyrene material scrap of any density , crushed into any smaller size ., $. • in liquid form along with a suitable vehicle is sprayed over the scrap or dipped in the liquid to make highly concentrated homogeneous polystyrene sludge , above homogeneous sludge and solution a&he separated by using distillation process. A-methnH. as rlaimed in rlqim 1 and 7 wherein the, rhlnrinaliom of ar.etyleng A method as claimed in claim , wherein Siiydrocarbon is stable at 110 c and boiling temperature iagent, Glycol-V method for complets more than 100 c . . -A-rnethod as claimed in claime recycling of general purpose polystyrene , high impact polystyrene , expandable polystyrene Dated this 24 th day of May 2004 (Vijay Shaslnkant Namjoshi)

Documents:

590-mum-2004-abstract(21-10-2004).doc

590-mum-2004-abstract(21-10-2004).pdf

590-mum-2004-cancelled pages(24-05-2004).pdf

590-mum-2004-cancelled pages(7-7-2005).pdf

590-mum-2004-claims(21-10-2004).doc

590-mum-2004-claims(21-10-2004).pdf

590-mum-2004-claims(amended)-(7-7-2005).pdf

590-mum-2004-claims(complete)-(3-6-2005).pdf

590-mum-2004-claims(granted)-(22-2-2008).pdf

590-mum-2004-claims(granted)-(24-05-2004).doc

590-mum-2004-claims(granted)-(24-05-2004).pdf

590-mum-2004-correspondence(03-06-2005).pdf

590-mum-2004-correspondence(17-02-2005).pdf

590-mum-2004-correspondence(3-6-2005).pdf

590-mum-2004-correspondence(ipo)-(15-4-2008).pdf

590-mum-2004-correspondence(ipo)-(21-02-2006).pdf

590-mum-2004-description(complete)-(3-6-2005).pdf

590-mum-2004-description(granted)-(22-2-2008).pdf

590-mum-2004-description(provisional)-(24-5-2004).pdf

590-mum-2004-drawing(21-10-2004).pdf

590-mum-2004-form 1(10-6-2004).pdf

590-mum-2004-form 1(21-10-2004).pdf

590-mum-2004-form 1(24-05-2004).pdf

590-mum-2004-form 19(10-06-2004).pdf

590-mum-2004-form 2(complete)-(21-10-2004).doc

590-mum-2004-form 2(complete)-(21-10-2004).pdf

590-mum-2004-form 2(complete)-(3-6-2005).pdf

590-mum-2004-form 2(granted)-(22-2-2008).pdf

590-mum-2004-form 2(granted)-(24-05-2004).doc

590-mum-2004-form 2(granted)-(24-05-2004).pdf

590-mum-2004-form 2(provisional)-(24-5-2004).pdf

590-mum-2004-form 2(title page)-(complete)-(3-6-2005).pdf

590-mum-2004-form 2(title page)-(granted)-(22-2-2008).pdf

590-mum-2004-form 2(title page)-(provisional)-(24-5-2004).pdf

590-mum-2004-form 3(10-6-2004).pdf

590-mum-2004-form 3(19-10-2004).pdf

590-mum-2004-form 3(21-10-2004).pdf

590-mum-2004-form 3(24-05-2004).pdf

590-mum-2004-form 5(21-10-2004).pdf

590-mum-2004-form 5(24-05-2004).pdf

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