Title of Invention	A LATEX BASED ADHESIVE COMPESITON
Abstract	The latex based adhesive composition of this invention has controllable viscosity and enhanced penetrating properties. The composition has a blend of centrifuged rubber latex or creamed rubber latex, casein dissolved in ammonia, starch solution having granules disrupted by treating in water, known vulvanising agents, accelerators, preservatives and antoxidants. The viscosity of the adhesive composition can be varied as required by changing the proportion of latex, starch and casein. PRICE: THIRTY RUPEES.

Title of Invention

A LATEX BASED ADHESIVE COMPESITON

Abstract

The latex based adhesive composition of this invention has controllable viscosity and enhanced penetrating properties. The composition has a blend of centrifuged rubber latex or creamed rubber latex, casein dissolved in ammonia, starch solution having granules disrupted by treating in water, known vulvanising agents, accelerators, preservatives and antoxidants. The viscosity of the adhesive composition can be varied as required by changing the proportion of latex, starch and casein. PRICE: THIRTY RUPEES.

Full Text	The accelerator in 1 kg water. A known dispersing agent may also be used. The strength of this solution may also be varied to +/- 15% without altering the nature of ythe final adhesive composition. Antoxidants and preservatives may be prepare din any manner known in the art. The adhesive composition is prepared by admixing the components thoroughly. The proportion of latex, casein and starch may be varied depending upon the required viscosity proportionate increase in the vulcanising agent, preservative and accelerator may be made. Accordingly the present invention provides a latex based adhesive composition comprising a blend of (a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber; (b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia; (c) 2 to 8 parts by volume of 20% solution of starch; (d) upto 0.03 part by volume of an accelerator such as herein described ; (e) upto 0.03 part by volume of known vulcanising agents; and optionally (£) upto 0.1 part of known oxidants and (g) upto 0.01 part of known preservative. Examples of two formulations are given herein below which is not intended to be limitive but illustrative in nature. Formulation of adhesive with centrifiiged latex having at least 60% of natural rubber latex: (1) centrifuged latex with 60% latext content 1.00 litre (2) 10% casein solution 0.5 litre All the components are blended thoroughly to obtain the adhesive composition. The proportion of latex, casein and starch decides the viscosity of resulting composition and can be varied depending upon the requirement. Obvious equivalents and variations known to persons skilled in the art are not excluded from the scope of this invention. I CLAIM: 1. A latex based adhesive composition comprising a blend of a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber; b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia; c) 2 to 8 parts by volume of 20% solution of starch; d) upto 0.03 part by volume of an accelerator such as herein described; e) upto 0.03 part by volume of known vulcanising agents; and optionally f) upto 0.1 part of known oxidants and g) upto 0.01 part of known preservative. 2. The composition as claimed in claim 1 wherein a solution of casein in ammonia is prepared by forming a suspension of casein in water and adding ammonia thereto. 3. The composition as claimed in claim 1, wherein the starch solution is of maize starch or wheat starch. 4. The composition as claimed in claim 3, wherein the accelerator is zinc dimethyl thio carbamate. 5. The composition as claimed in claim 1, wherein the vulcanising agent is sulphur. 6. The adhesive composition as claimed in claim 1, wherein the constituents of the blend are in the range given below: (a) centrifuged natural rubber latex having a latex content of 60% : 1.00 litre (b) 10% solution of casein 0.5 litre (c) 20% solution of maize starch : 3.5 litre (d) 50% sulphur emulsion 0.012 litre (e) 50% solution of zinc dimethyl dithio carbamate (accelerator) 0.012 litre (f) known preservative 0.005 litre (g) known antoxidants 0.05 litre 7. The adhesive composition as claimed in claim 1, wherein the constituents of the blend are in the range given below: (a) creamed latex having 50% dry rubber content : 1.00 litre (b) 10% casein solution 1.00 litre (c) 20% solution of maize starch 4.00 litre (d)50% sulphur emulsion : 0.010 litre (e) 50% solution of zinc dimethyl dithio carbamate (accelerator) 0.010 litre (f) known preservative 0.010 litre (g) known antoxidants 0.05 litre 8. A latex based adhesive composition substantially as herein described and exemplified. the accelerator in 1 kg water. A known dispersing agent may also be used. The strength of this solution may also be varied to +/- 15% without altering the nature of ythe final adhesive composition. Antoxidants and preservatives may be prepare din any manner known in the art. The adhesive composition is prepared by admixing the components thoroughly. The proportion of latex, casein and starch may be varied depending upon the required viscosity proportionate increase in the vulcanising agent, preservative and accelerator may be made. Accordingly the present invention provides a latex based adhesive composition comprising a blend of (a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber; (b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia; (c) 2 to 8 parts by volume of 20% solution of starch; (d) upto 0.03 part by volume of an accelerator such as herein described ; (e) upto 0.03 part by volume of known vulcanising agents; and optionally (£) upto 0.1 part of known oxidants and (g) upto 0.01 part of known preservative. Examples of two formulations are given herein below which is not intended to be limitive but illustrative in nature. Formulation of adhesive with centrifiiged latex having at least 60% of natural rubber latex: (1) centrifuged latex with 60% latext content 1.00 litre (2) 10% casein solution 0.5 litre All the components are blended thoroughly to obtain the adhesive composition. The proportion of latex, casein and starch decides the viscosity of resulting composition and can be varied depending upon the requirement. Obvious equivalents and variations known to persons skilled in the art are not excluded from the scope of this invention. I CLAIM: 1. A latex based adhesive composition comprising a blend of a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber; b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia; c) 2 to 8 parts by volume of 20% solution of starch; d) upto 0.03 part by volume of an accelerator such as herein described; e) upto 0.03 part by volume of known vulcanising agents; and optionally f) upto 0.1 part of known oxidants and g) upto 0.01 part of known preservative. 2. The composition as claimed in claim 1 wherein a solution of casein in ammonia is prepared by forming a suspension of casein in water and adding ammonia thereto. 3. The composition as claimed in claim 1, wherein the starch solution is of maize starch or wheat starch. 4. The composition as claimed in claim 3, wherein the accelerator is zinc dimethyl thio carbamate. 5. The composition as claimed in claim 1, wherein the vulcanising agent is sulphur. 6. The adhesive composition as claimed in claim 1, wherein the constituents of the blend are in the range given below: (a) centrifuged natural rubber latex having a latex content of 60% : 1.00 litre (b) 10% solution of casein 0.5 litre (c) 20% solution of maize starch : 3.5 litre (d) 50% sulphur emulsion 0.012 litre (e) 50% solution of zinc dimethyl dithio carbamate (accelerator) 0.012 litre (f) known preservative 0.005 litre (g) known antoxidants 0.05 litre 7. The adhesive composition as claimed in claim 1, wherein the constituents of the blend are in the range given below: (a) creamed latex having 50% dry rubber content : 1.00 litre (b) 10% casein solution 1.00 litre (c) 20% solution of maize starch 4.00 litre (d)50% sulphur emulsion : 0.010 litre (e) 50% solution of zinc dimethyl dithio carbamate (accelerator) 0.010 litre (f) known preservative 0.010 litre (g) known antoxidants 0.05 litre 8. A latex based adhesive composition substantially as herein described and exemplified.

Full Text

The accelerator in 1 kg water. A known dispersing agent may also be used. The strength of this solution may also be varied to +/- 15% without altering the nature of ythe final adhesive composition.
Antoxidants and preservatives may be prepare din any manner known in the art. The adhesive composition is prepared by admixing the components thoroughly. The proportion of latex, casein and starch may be varied depending upon the required viscosity proportionate increase in the vulcanising agent, preservative and accelerator may be made.
Accordingly the present invention provides a latex based adhesive composition comprising a blend of (a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber; (b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia; (c) 2 to 8 parts by volume of 20% solution of starch; (d) upto 0.03 part by volume of an accelerator such as herein described ; (e) upto 0.03 part by volume of known vulcanising agents; and optionally (£) upto 0.1 part of known oxidants and (g) upto 0.01 part of known preservative.
Examples of two formulations are given herein below which is not intended to be limitive but illustrative in nature.
Formulation of adhesive with centrifiiged latex having at least 60% of natural rubber latex:
(1) centrifuged latex with 60% latext content 1.00 litre
(2) 10% casein solution 0.5 litre

All the components are blended thoroughly to obtain the adhesive composition. The proportion of latex, casein and starch decides the viscosity of resulting composition and can be varied depending upon the requirement.
Obvious equivalents and variations known to persons skilled in the art are not excluded from the scope of this invention.

I CLAIM:
1. A latex based adhesive composition comprising a blend of
a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber;
b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia;
c) 2 to 8 parts by volume of 20% solution of starch;
d) upto 0.03 part by volume of an accelerator such as herein described;
e) upto 0.03 part by volume of known vulcanising agents; and optionally
f) upto 0.1 part of known oxidants and
g) upto 0.01 part of known preservative.

2. The composition as claimed in claim 1 wherein a solution of casein in ammonia is prepared by forming a suspension of casein in water and adding ammonia thereto.
3. The composition as claimed in claim 1, wherein the starch solution is of maize starch or wheat starch.
4. The composition as claimed in claim 3, wherein the accelerator is zinc dimethyl thio carbamate.

5. The composition as claimed in claim 1, wherein the vulcanising agent is sulphur.
6. The adhesive composition as claimed in claim 1, wherein the constituents of the blend are in the range given below:
(a) centrifuged natural rubber latex having a
latex content of 60% : 1.00 litre
(b) 10% solution of casein 0.5 litre
(c) 20% solution of maize starch : 3.5 litre
(d) 50% sulphur emulsion 0.012 litre
(e) 50% solution of zinc dimethyl dithio
carbamate (accelerator) 0.012 litre
(f) known preservative 0.005 litre
(g) known antoxidants 0.05 litre
7. The adhesive composition as claimed in claim 1, wherein the
constituents of the blend are in the range given below:

(a) creamed latex having 50% dry rubber content : 1.00 litre
(b) 10% casein solution 1.00 litre
(c) 20% solution of maize starch 4.00 litre (d)50% sulphur emulsion : 0.010 litre
(e) 50% solution of zinc dimethyl dithio
carbamate (accelerator) 0.010 litre
(f) known preservative 0.010 litre
(g) known antoxidants 0.05 litre
8. A latex based adhesive composition substantially as herein described
and exemplified.

the accelerator in 1 kg water. A known dispersing agent may also be used. The strength of this solution may also be varied to +/- 15% without altering the nature of ythe final adhesive composition.
Antoxidants and preservatives may be prepare din any manner known in the art. The adhesive composition is prepared by admixing the components thoroughly. The proportion of latex, casein and starch may be varied depending upon the required viscosity proportionate increase in the vulcanising agent, preservative and accelerator may be made.
Accordingly the present invention provides a latex based adhesive composition comprising a blend of (a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber; (b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia; (c) 2 to 8 parts by volume of 20% solution of starch; (d) upto 0.03 part by volume of an accelerator such as herein described ; (e) upto 0.03 part by volume of known vulcanising agents; and optionally (£) upto 0.1 part of known oxidants and (g) upto 0.01 part of known preservative.
Examples of two formulations are given herein below which is not intended to be limitive but illustrative in nature.
Formulation of adhesive with centrifiiged latex having at least 60% of natural rubber latex:
(1) centrifuged latex with 60% latext content 1.00 litre
(2) 10% casein solution 0.5 litre

All the components are blended thoroughly to obtain the adhesive composition. The proportion of latex, casein and starch decides the viscosity of resulting composition and can be varied depending upon the requirement.
Obvious equivalents and variations known to persons skilled in the art are not excluded from the scope of this invention.

I CLAIM:
1. A latex based adhesive composition comprising a blend of
a) 0.5 to 5 parts by volume of centrifuged latex selected from natural latex and latex having 35 to 58% of dry rubber;
b) 0.1 to 3 parts by volume of 10% solution of casein in ammonia;
c) 2 to 8 parts by volume of 20% solution of starch;
d) upto 0.03 part by volume of an accelerator such as herein described;
e) upto 0.03 part by volume of known vulcanising agents; and optionally
f) upto 0.1 part of known oxidants and
g) upto 0.01 part of known preservative.

2. The composition as claimed in claim 1 wherein a solution of casein in ammonia is prepared by forming a suspension of casein in water and adding ammonia thereto.
3. The composition as claimed in claim 1, wherein the starch solution is of maize starch or wheat starch.
4. The composition as claimed in claim 3, wherein the accelerator is zinc dimethyl thio carbamate.

5. The composition as claimed in claim 1, wherein the vulcanising agent is sulphur.
6. The adhesive composition as claimed in claim 1, wherein the constituents of the blend are in the range given below:
(a) centrifuged natural rubber latex having a
latex content of 60% : 1.00 litre
(b) 10% solution of casein 0.5 litre
(c) 20% solution of maize starch : 3.5 litre
(d) 50% sulphur emulsion 0.012 litre
(e) 50% solution of zinc dimethyl dithio
carbamate (accelerator) 0.012 litre
(f) known preservative 0.005 litre
(g) known antoxidants 0.05 litre
7. The adhesive composition as claimed in claim 1, wherein the
constituents of the blend are in the range given below:

(a) creamed latex having 50% dry rubber content : 1.00 litre
(b) 10% casein solution 1.00 litre
(c) 20% solution of maize starch 4.00 litre (d)50% sulphur emulsion : 0.010 litre
(e) 50% solution of zinc dimethyl dithio
carbamate (accelerator) 0.010 litre
(f) known preservative 0.010 litre
(g) known antoxidants 0.05 litre
8. A latex based adhesive composition substantially as herein described
and exemplified.

Documents:

0269-mas-1996 abstract.pdf

0269-mas-1996 claims.pdf

0269-mas-1996 correspondence -others.pdf

0269-mas-1996 correspondence -po.pdf

0269-mas-1996 description (complete).pdf

0269-mas-1996 form-1.pdf

0269-mas-1996 form-26.pdf

0269-mas-1996 form-4.pdf

0269-mas-1996 form-9.pdf

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Patent Number

191547

Indian Patent Application Number

269/MAS/1996

PG Journal Number

35/2005

Publication Date

16-Sep-2005

Grant Date

08-Aug-2005

Date of Filing

20-Feb-1996

Name of Patentee

VELIYIL VELAYUDHAM PAVITHRAN

Applicant Address

THE TRAVANCORE MATS MATTING CO; PB NO.5, CHERTHALA,

Inventors:

#	Inventor's Name	Inventor's Address
1	VELIYIL VELAYUDHAM PAVITHRAN	THE TRAVANCORE MATS MATTING CO; PB NO.5, CHERTHALA,

PCT International Classification Number

C09J3/12

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA