US4200563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing aqueous polymer emulsion with improved stability
Assignee: Japan Exlan Co Ltd
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Filing: 1978-03-29
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Granted: 1980-04-29
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Expires: 1998-03-29
Abstract
Abstract In producing an aqueous emulsion containing substantially no emulsifier, an aqueous polymer emulsion remarkably elevated in chemical stability is obtained by copolymerizing a specific amount of a particular vinyl monomer containing polyoxyethylene units as an indispensable copolymerization component.
Inventors
- 👤 Shigeo Komiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:28
CPC Classifications
C; C08; C08F; C08F246/00; C08F212/00; C08F212/02; C08F212/04; C08F212/14; C08F212/30; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/285; C08F220/286
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
166 words
A method of producing an aqueous polymer emulsion with improved stability characterized in that, in producing an emulsifier-free aqueous polymer emulsion, a monomer mixture consisting of a polyoxyethylene-containing vinyl monomer (A) represented by the following general formula (I): ##STR5## wherein R 1 is H or CH 3 ; R 2 is H, CH 3 or C 6 H 4 --(CH 2 ) m --H; n is an integer of from 4 to 30; and m is an integer of from 0 to 20, which forms 0.01 to 30 weight % of the total monomer mixture; a vinyl monomer (B) represented by the following general formula (II): ##STR6## wherein R 1 is H or CH 3 ; X is H or an alkyl group of C 1 -C 4 ; M is H, NH 4 or an alkali metal atom; A is a benzene ring; x is 0 or 1; and m is an integer of from 0 to 4 and at least one other vinyl monomer.
Claim 2
Independent Claim
166 words
A method of producing an aqueous polymer emulsion with improved stability characterized in that, in producing an emulsifier-free aqueous polymer emulsion, a monomer mixture consisting of a polyoxyethylene-containing vinyl monomer (A) represented by the following general formula (I): ##STR5## wherein R 1 is H or CH 3 ; R 2 is H, CH 3 or C 6 H 4 --(CH 2 ) m --H; n is an integer of from 4 to 30; and m is an integer of from 0 to 20, which forms 0.01 to 30 weight % of the total monomer mixture; a vinyl monomer (B) represented by the following general formula (II): ##STR6## wherein R 1 is H or CH 3 ; X is H or an alkyl group of C 1 -C 4 ; M is H, NH 4 or an alkali metal atom; A is a benzene ring; x is 0 or 1; and m is an integer of from 0 to 4 and at least one other vinyl monomer.
Claim 3
Independent Claim
143 words
A method of producing an aqueous polymer emulsion with improved stability characterized in that, in producing an emulsifier-free aqueous polymer emulsion, a monomer mixture consisting of a polyoxyethylene-containing vinyl monomer (A) represented by the following general formula (I): ##STR7## wherein R 1 is H or CH 3 ; R 2 is H, CH 3 or C 6 H 4 --(CH 2 ) m --H; n is an integer of from 4 to 30; and m is an integer of from 0 to 20; which forms 0.01 to 30 weight % of the total monomer mixture; a vinyl monomer (B) represented by the following general formula (III): ##STR8## wherein R 1 is H or CH 3 ; M is H, NH 4 or an alkali metal atom; and n represents an integer of from 1 to 4 and at least one other vinyl monomer.
Claim 4
Independent Claim
143 words
A method of producing an aqueous polymer emulsion with improved stability characterized in that, in producing an emulsifier-free aqueous polymer emulsion, a monomer mixture consisting of a polyoxyethylene-containing vinyl monomer (A) represented by the following general formula (I): ##STR7## wherein R 1 is H or CH 3 ; R 2 is H, CH 3 or C 6 H 4 --(CH 2 ) m --H; n is an integer of from 4 to 30; and m is an integer of from 0 to 20; which forms 0.01 to 30 weight % of the total monomer mixture; a vinyl monomer (B) represented by the following general formula (III): ##STR8## wherein R 1 is H or CH 3 ; M is H, NH 4 or an alkali metal atom; and n represents an integer of from 1 to 4 and at least one other vinyl monomer.
Claim 5
Dependent Claim
35 words
A method according to claim 1 wherein the ratio of use of the vinyl monomer represented by the general formula (II) is 0.1-15 weight % based on the total amount of the whole monomer mixture.
Claim 6
Dependent Claim
35 words
A method according to claim 2 wherein the ratio of use of the vinyl monomer represented by the general formula (III) is 0.1-15 weight % based on the total amount of the whole monomer mixture.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |