Patent US3815964A successfully refreshed from Google Patents.
Patent EP0339559A2 successfully refreshed from Google Patents.
EP0339559A2
Expired / Lapsed
EP
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Process for preparing elastomeric latex water emulsions and compositions thereof
Assignee: Goodrich Corp
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Filing: 1989-04-25
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Granted: —
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Expires: 2009-04-25
Abstract
Abstract Organic solutions of elastomers selected from the group consisting of butyl rubbers and polymers derived from ethylene and propylene are emulsified in water in the presence of and effective amount of a rubber-extending oil and a phosphate ester; after removing the organic solvent, the emulsion is thickened with a water-soluble polymeric thickener.
Inventors
- 👤 Gary A. Anderle
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:12
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C08J2323/00; C08J2323/02; C08J2323/16; C08J2323/18; C08J2323/20; C08J2323/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
In a process for preparing latex emulsions and dispersions from organic solutions of elastomers selected from the group consisting of butyl rubbers and polymers derived from ethylene and propylene; the improvement which comprises emulsifying an organic solution of said elastomers with water in the presence of an effective amount of a rubber-extending oil and a phosphate ester, removing the organic solvent from the emulsion and thickening the emulsion with a substantially water-soluble polymeric thickener selected from the group consisting of polyacrylics, cellulosics, polyvinyl alcohol, polyvinyl pyrrolidone, polymers of maleic acid or anhydride and vinyl ethers, natural gums, starches and casein.
Claim 2
Dependent Claim
100 words
In a process for preparing latex emulsions and dispersions from organic solutions of elastomers selected from the group consisting of butyl rubbers and polymers derived from ethylene and propylene; the improvement which comprises emulsifying an organic solution of said elastomers with water in the presence of an effective amount of a rubber-extending oil and a phosphate ester, removing the organic solvent from the emulsion and thickening the emulsion with a substantially water-soluble polymeric thickener selected from the group consisting of polyacrylics, cellulosics, polyvinyl alcohol, polyvinyl pyrrolidone, polymers of maleic acid or anhydride and vinyl ethers, natural gums, starches and casein.
Claim 3
Dependent Claim
11 words
The process of Claim 1 wherein the thickener is a polyacrylic.
Claim 4
Dependent Claim
12 words
The process of Claim 1 wherein the thickener is a cellulosic polymer.
Claim 5
Dependent Claim
53 words
The process of Claim 1 wherein the phosphate ester is present in an amount ranging from about 9 to 20 parts by weight per 100 parts by weight of the elastomer and the rubber- extending oil is present in an amount ranging from about 1.0 to 100 parts by weight of the elastomer.
Claim 6
Dependent Claim
29 words
The process of claim 1 wherein water is present in an amount ranging from about 0.03 to 0.9 parts by weight for every part by weight of organic solvent.
References Cited (Backward Citations)
No citation records indexed.
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