US4465803A
Expired / Lapsed
US
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Aqueous emulsion composition
Assignee: Kansai Paint Co Ltd
•
Filing: 1980-12-24
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Granted: 1984-08-14
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Expires: 2000-12-24
Abstract
Abstract An aqueous emulsion composition which is the product of emulsion polymerization in water of at least one radical-polymerizable unsaturated monomer in the presence of a water-soluble resin having a graft-polymerizable unsaturated group in the side chain.
Inventors
- 👤 Yasuharu Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:54
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F267/00; C08F267/06; C08F8/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
158 words
An aqueous emulsion composition which is the product of emulsion polymerization of at least one radical-polymerizable unsaturated monomer in the presence of a water-soluble resin having a graft-polymerizable unsaturated group in the side chain in water or a mixture consisting essentially of water and a water-miscible organic solvent, said water-soluble resin being a water-soluble resin formed by (A) co-polymerizing (i) a monomer containing one radical-polymerizable unsaturated group of the formula ##STR11## wherein R 4 is hydrogen or methyl, and R 5 is ##STR12## a phenylene group or a lower alkenylene group, wherein R 6 is hydrogen, methyl or ethyl, and at least one graft-polymerizable unsaturated group in one molecule, (ii) an α,β-ethylenically unsaturated acid, and/or a monoester between a polyalkylene glycol and acrylic or methacrylic acid, and (iii) another radical-polymerizable unsaturated monomer having a Q value, in the Q-e theory, of at least 0.1, and (B) neutralizing the resulting copolymer in the presence of the radical-polymerizable unsaturated monomer.
Claim 2
Dependent Claim
158 words
An aqueous emulsion composition which is the product of emulsion polymerization of at least one radical-polymerizable unsaturated monomer in the presence of a water-soluble resin having a graft-polymerizable unsaturated group in the side chain in water or a mixture consisting essentially of water and a water-miscible organic solvent, said water-soluble resin being a water-soluble resin formed by (A) co-polymerizing (i) a monomer containing one radical-polymerizable unsaturated group of the formula ##STR11## wherein R 4 is hydrogen or methyl, and R 5 is ##STR12## a phenylene group or a lower alkenylene group, wherein R 6 is hydrogen, methyl or ethyl, and at least one graft-polymerizable unsaturated group in one molecule, (ii) an α,β-ethylenically unsaturated acid, and/or a monoester between a polyalkylene glycol and acrylic or methacrylic acid, and (iii) another radical-polymerizable unsaturated monomer having a Q value, in the Q-e theory, of at least 0.1, and (B) neutralizing the resulting copolymer in the presence of the radical-polymerizable unsaturated monomer.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein the radical-polymerizable unsaturated group in the monomer (i) is CH 2 ═CHCOO-- or CH 2 ═C(CH 3 )COO--.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein the graft-polymerizable unsaturated group in the monomer (i) is ##STR13##
Claim 5
Dependent Claim
48 words
The composition of claim 1 wherein the α, β-ethylenically unsaturated acid (ii) is an aliphatic unsaturated mono- or di-carboxylic acid having 3 to 22 carbon atoms, an anhydride or monoester of said dicarboxylic acid, or a vinyl aromatic mono- or di-sulfonic acid having 8 to 12 carbon atoms.
Claim 6
Dependent Claim
45 words
The composition of claim 1 wherein said monoester between the polyalkylene glycol and acrylic or methacrylic acid is a product obtained by esterification of one OH of polyethylene glycol or polypropylene glycol having a molecular weight of 40 to 500 with acrylic or methacrylic acid.
Claim 7
Dependent Claim
29 words
The composition of claim 1 wherein the other radical-polymerizable unsaturated monomer (iii) is an ethylenically unsaturated monomer having a Q value, in the Q-e theory, of at least 0.1.
Claim 8
Dependent Claim
53 words
The composition of claim 1 wherein the compolymer is composed of 0.1 to 30% by weight of the monomer (i), 2 to 60% by weight of the α,β-ethylenically unsaturated acid or 10 to 80% by weight of the monoester as the monomer (ii), and 10 to 97.9% by weight of the monomer (iii).
Claim 9
Dependent Claim
22 words
The composition of claim 1 wherein the radical-polymerizable unsaturated monomer is a vinyl aromatic compound or an acrylic or methacrylic acid ester.
Claim 10
Dependent Claim
32 words
The composition of claim 1 wherein the proportion of the water-soluble resin is 5 to 80% by weight based on the total weight of the water-solulbe resin and the radical-polymerizable unsaturated monomer.
Claim 11
Dependent Claim
25 words
A coating composition comprising the aqueous emulsion composition set forth in any one of claims 10-15, 17, 18, 11 and 1 as a film-forming component.
Claim 12
Dependent Claim
38 words
The composition of claim 1 wherein the water-soluble resin, prior to neutralization, has an acid value of 10 to 350 and a number average molecular weight, as determined by gel permeation chromatography, of about 500 to about 100,000.
Claim 13
Dependent Claim
23 words
The composition of claim 1 which is produced without the aid of an ionic or nonionic low molecular or high molecular surface-active substance.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |