Patent EP0187505A2 successfully refreshed from Google Patents.
EP0187505A2
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EP
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Methods of making latex polymer compositions, latex polymer compositions and uses thereof
Assignee: Rohm and Haas Co
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Filing: 1985-12-18
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Granted: —
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Expires: 2005-12-18
Abstract
Abstract @ Aqueous dispersions of water-insoluble latex polymer are prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization of at least one ethylenically unsaturated monomer comprising no more than 2% by weight, based on the total weight of said ethylenically unsaturated monomer, of multi-ethylenically unsaturated monomer, with additional ethylenically unsaturated monomer comprising at least one monomer having at least two sites of ethylenic unsaturation. The additional monomer is subsequently polymerized within the swollen latex polymer. Compositions comprising the latex polymer may be used as coatings for flexible or rigid substrates, as caulks, or as roof mastiacs.
Inventors
- 👤 Lawrence Stephen Frankel
- 👤 Gerald Lee Jones
- 👤 Donald Alfred Winey
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 14:03
CPC Classifications
C; C09; C09D; C09D151/00; C08; C08F; C08F291/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
15 words
A method of making an aqueous dispersion of a water-insoluble latex polymer, said method comprising
Claim 2
Independent Claim
15 words
A method of making an aqueous dispersion of a water-insoluble latex polymer, said method comprising
Claim 3
Dependent Claim
114 words
(a) preparing by emulsion polymerization an initial aqueous dispersion of initial water-insoluble latex polymer of at least one ethylenically unsaturated monomer, wherein said ethylenically unsaturated monomer comprises no more than two percent by weight, based on the total weight of said ethylenically unsaturated monomer, of multi-ethylenically unsaturated monomer and wherein said initial water-insoluble latex polymer otherwise contains substantially no sites of ethylenic unsaturation. (b) dispersing in said initial aqueous dispersion additional ethylenically unsaturated monomer comprising at least one monomer having at least two sites of ethylenic unsaturation, said additional monomer being such as to swell said initial latex polymer in the dispersion, and (c) polymerizing said additional monomer within said monomer-swollen initial latex polymer.
Claim 4
Dependent Claim
114 words
(a) preparing by emulsion polymerization an initial aqueous dispersion of initial water-insoluble latex polymer of at least one ethylenically unsaturated monomer, wherein said ethylenically unsaturated monomer comprises no more than two percent by weight, based on the total weight of said ethylenically unsaturated monomer, of multi-ethylenically unsaturated monomer and wherein said initial water-insoluble latex polymer otherwise contains substantially no sites of ethylenic unsaturation. (b) dispersing in said initial aqueous dispersion additional ethylenically unsaturated monomer comprising at least one monomer having at least two sites of ethylenic unsaturation, said additional monomer being such as to swell said initial latex polymer in the dispersion, and (c) polymerizing said additional monomer within said monomer-swollen initial latex polymer.
Claim 5
Dependent Claim
23 words
A method as claimed in claim 1, wherein said multi-ethylenically unsaturated monomer and said additional ethylenically unsaturated monomer are alpha, beta ethylenically unsaturated.
Claim 6
Dependent Claim
19 words
A method as claimed in claim 1, wherein said multi-ethylenically unsaturated monomer comprises multi alpha, beta ethylenically unsaturated monomer.
Claim 7
Dependent Claim
28 words
A method as claimed in claim 1, wherein said additional ethylenically unsaturated monomer comprises at least one monomer having at least two sites of alpha, beta ethylenic unsaturation.
Claim 8
Independent Claim
35 words
A method according to any one of claims 1, 3 and 4, wherein some or all of the monomer from which said initial water insoluble latex polymer is polymerized is alpha, beta ethylenically unsaturated monomer.
Claim 9
Independent Claim
55 words
A method as claimed in any one of the preceding claims, wherein said additional monomer comprises at least 50 percent by weight, preferably at least 80 percent by weight, based on the additional monomer, of monomer which has a solubility in water at 20°C of no more than 0.2 g per 100 g of water.
Claim 10
Independent Claim
31 words
A method as claimed in any one of the preceding claims, wherein said initial latex polymer has a glass transition temperature of no more than 20°C, preferably no more than -10°C.
Claim 11
Independent Claim
54 words
A method as claimed in any one of the preceding claims, wherein the weight of the additional ethylenically unsaturated monomer is so chosen as to yield a ratio of weight of polymer formed therefrom to the weight of solids in the initial latex polymer of from 1:200 to 1:2, preferably from 1:100 to 1:4.
Claim 12
Independent Claim
38 words
A method as claimed in any one of the preceding claims, wherein the aqueous dispersion is either coagulated and dewatered to form a gumstock or foamed and dried or allowed to dry to form a cellular foam material.
Claim 13
Dependent Claim
70 words
An aqueous dispersion of water-insoluble latex polymer particles comprising initial latex polymer of units of at least one ethylenically unsaturated monomer comprising no more than 2 percent by weight, based on the total weight of said ethylenically unsaturated monomer, of multi-ethylenically unsaturated monomer units; and a second polymeric phase comprising units of ethylenically unsaturated monomer comprising units of at least one monomer having at least two sites of ethylenic unsaturation.
Claim 14
Dependent Claim
70 words
An aqueous dispersion of water-insoluble latex polymer particles comprising initial latex polymer of units of at least one ethylenically unsaturated monomer comprising no more than 2 percent by weight, based on the total weight of said ethylenically unsaturated monomer, of multi-ethylenically unsaturated monomer units; and a second polymeric phase comprising units of ethylenically unsaturated monomer comprising units of at least one monomer having at least two sites of ethylenic unsaturation.
Claim 15
Dependent Claim
22 words
An aqueous dispersion as claimed in claim 10 obtainable by a method as claimed in any one of claims 2 to 8.
Claim 16
Dependent Claim
49 words
The use of a composition, comprising water-insoluble latex polymer obtained by a method as claimed in any one of claims 1 to 9, in or as a coating composition for coating flexible and rigid substrates, in or as a caulking composition or in or as a roof mastic omposition.
References Cited (Backward Citations)
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