Patent US3931086A successfully refreshed from Google Patents.
US3931086A
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Thermosetting acrylic emulsions based on n-methylol allyl carbamates
Assignee: Ingredion Inc
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Filing: 1974-05-13
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Granted: 1976-01-06
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Expires: 1994-05-13
Abstract
Abstract Thermosetting acrylic emulsions having more favorable curing properties are provided using reactive monomers in the largely acrylic emulsion copolymer, at least one-third of these reactive monomers being an N-methylol derivative of an allyl carbamate.
Inventors
- 👤 Martin K. Lindemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:06
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/062
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
84 words
A thermosetting acrylic emulsion comprising water having dispersed therein an emulsion copolymer of monoethylenic monomers at least 65% of which are nonreactive acrylic monomers, and from 0.2-15% of reactive monomers at least about one-third of which are an N-methylol derivative, or a C 1 - C 8 alcohol ether thereof, of an allyl carbamate having the formula: ##EQU4## in which R 1 is hydrogen or methyl, R 2 is an alkylidene group containing from 2-4 carbon atoms, and n is an integer from 0-10.
Claim 2
Dependent Claim
84 words
A thermosetting acrylic emulsion comprising water having dispersed therein an emulsion copolymer of monoethylenic monomers at least 65% of which are nonreactive acrylic monomers, and from 0.2-15% of reactive monomers at least about one-third of which are an N-methylol derivative, or a C 1 - C 8 alcohol ether thereof, of an allyl carbamate having the formula: ##EQU4## in which R 1 is hydrogen or methyl, R 2 is an alkylidene group containing from 2-4 carbon atoms, and n is an integer from 0-10.
Claim 3
Dependent Claim
19 words
An emulsion as recited in claim 1 in which said acrylic monomers constitute at least 85% of the copolymer.
Claim 4
Dependent Claim
30 words
An emulsion as recited in claim 1 in which at least 75% of the acrylic monomers are C 1 - C 8 alcohol esters of alpha, beta-monoethylenically unsaturated monocarboxylic acids.
Claim 5
Dependent Claim
47 words
An emulsion as recited in claim 1 in which said acrylic monomers constitute at least 85% of the copolymer, and at least 75% of the acrylic monomers are C 1 - C 8 alcohol esters of acrylic acid or methacrylic acid providing a T g below 20°C.
Claim 6
Dependent Claim
21 words
An emulsion as recited in claim 4 in which the copolymer has a T g below 0°C. down to about -60°C.
Claim 7
Dependent Claim
35 words
An emulsion as recited in claim 5 in which the N-methylol derivative or the ether thereof is a derivative of N-methylol allyl carbamate and said reactive monomers are present in an amount of from 0.5-10%.
Claim 8
Dependent Claim
20 words
An emulsion as recited in claim 6 in which the propyl or butyl ether of N-methylol allyl carbamate is used.
Claim 9
Dependent Claim
29 words
An emulsion as recited in claim 6 in which said emulsion copolymer is formed by subjecting at least the first 35% of the monomers to an essentially adiabatic exotherm.
Claim 10
Dependent Claim
16 words
An emulsion as recited in claim 1 in which said emulsion further includes an aminoplast resin.
Claim 11
Dependent Claim
89 words
A thermosetting acrylic emulsion comprising water having dispersed therein an emulsion copolymer consisting essentially of at least 65% of C 1 - C 8 alcohol esters of acrylic or methacrylic acids and from 0.5-10% of reactive monomers at least about one-third of which are an N-methylol derivative, or a C 1 - C 8 alcohol ether thereof, of allyl or methallyl carbamate, any balance of said copolymer being selected from acrylonitrile, styrene, vinyl toluene, vinyl acetate, vinyl chloride and vinylidene chloride, said copolymer having a T g below 20°C.
Claim 12
Dependent Claim
89 words
A thermosetting acrylic emulsion comprising water having dispersed therein an emulsion copolymer consisting essentially of at least 65% of C 1 - C 8 alcohol esters of acrylic or methacrylic acids and from 0.5-10% of reactive monomers at least about one-third of which are an N-methylol derivative, or a C 1 - C 8 alcohol ether thereof, of allyl or methallyl carbamate, any balance of said copolymer being selected from acrylonitrile, styrene, vinyl toluene, vinyl acetate, vinyl chloride and vinylidene chloride, said copolymer having a T g below 20°C.
Claim 13
Dependent Claim
29 words
An emulsion as recited in claim 10 in which said copolymer comprises methyl methacrylate, and a butyl acrylate providing a T g of from about -20°C. to about 15°C.
Claim 14
Dependent Claim
20 words
An emulsion as recited in claim 11 in which said N-methylol derivative is the propyl ether of N-methylol allyl carbamate.
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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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |