US3852233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting vinyl ester-ethylene emulsion copolymers
Assignee: Ingredion Inc
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Filing: 1973-03-12
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Granted: 1974-12-03
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Expires: 1993-03-12
Abstract
Abstract Vinyl ester-ethylene emulsion copolymers are modified to introduce improved thermosetting cure capacity by including in the copolymer a proportion of a formaldehyde addition product with an allyl carbamate.
Inventors
- 👤 M Lindemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
C; C08; C08L; C08L31/00; C08L31/02; C08L31/04; C08F; C08F218/00; C08F218/02; C08F218/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
58 words
AN AQUEOUS EMULSION COMPRISING AN AQUEOUS MEDIUM HAVING COLLOIDALLY SUSPENDED THEREIN AN EMULSION COPOLYMER CONSISTING ESSENTIALLY OF FROM 5-40 PERCENT OF ETHYLENE, FROM 0.5-15 PERCENT OF MONOMERS PROVIDING THERMOSETTING CHARACTERISTICS AND CONSISTING ESSENTIALLY OF A FORMALDEHYDE ADDUCT WITH AN ALLYL CARBAMATE PROVIDING N-METHYLOL FUNCTIONALITY, AND AT LEAST 40 PERCENT OF VINYL ESTER WITH A SATURATED ALIPHATIC MONOCARBOXYLIC ACID.
Claim 2
Dependent Claim
58 words
AN AQUEOUS EMULSION COMPRISING AN AQUEOUS MEDIUM HAVING COLLOIDALLY SUSPENDED THEREIN AN EMULSION COPOLYMER CONSISTING ESSENTIALLY OF FROM 5-40 PERCENT OF ETHYLENE, FROM 0.5-15 PERCENT OF MONOMERS PROVIDING THERMOSETTING CHARACTERISTICS AND CONSISTING ESSENTIALLY OF A FORMALDEHYDE ADDUCT WITH AN ALLYL CARBAMATE PROVIDING N-METHYLOL FUNCTIONALITY, AND AT LEAST 40 PERCENT OF VINYL ESTER WITH A SATURATED ALIPHATIC MONOCARBOXYLIC ACID.
Claim 3
Dependent Claim
15 words
An emulsion as recited in claim 1 in which said allyl carbamate has the formula:
Claim 4
Dependent Claim
18 words
An emulsion as recited in claim 1 in which the N-methylol groups are etherified with a C1-C8 alcohol.
Claim 5
Dependent Claim
16 words
An emulsion as recited in claim 1 in which said adduct is mono N-methylol allyl carbamate.
Claim 6
Dependent Claim
22 words
An emulsion as recited in claim 1 in which said adduct contains from 1-2 moles of formaldehyde per mole of said carbamate.
Claim 7
Dependent Claim
21 words
An emulsion as recited in claim 5 in which said carbamate is allyl carbamate and said vinyl ester is vinyl acetate.
Claim 8
Dependent Claim
22 words
An emulsion as recited in claim 1 in which said monomers providing thermosetting characteristics include a minor proportion of monoethylenic unsaturated amide.
Claim 9
Dependent Claim
15 words
An emulsion as recited in claim 7 in which said amide is acrylamide or methacrylamide.
Claim 10
Dependent Claim
20 words
An emulsion as recited in claim 1 in which at least 55 percent of the copolymer consists of vinyl acetate.
Claim 11
Dependent Claim
21 words
An emulsion as recited in claim 1 in which said monomers providing thermosetting characteristics include a minor proportion of monoethylenic alcohol.
Claim 12
Dependent Claim
21 words
An emulsion as recited in claim 1 in which said copolymer further includes from 0.5-3 percent of a monoethylenic carboxylic acid.
Claim 13
Dependent Claim
23 words
An emulsion as recited in claim 1 in which said monomers providing thermosetting characteristics are present in an amount of from 2-10 percent.
Claim 14
Dependent Claim
16 words
An emulsion as recited in claim 1 in which said aqueous medium includes a protective colloid.
Claim 15
Dependent Claim
56 words
An aqueous emulsion comprising an aqueous medium having colloidally suspended therein an emulsion copolymer consisting essentially of from 5-40 percent of ethylene, at least 55 percent of vinyl acetate, and monomers providing thermosetting characteristics and containing from 0.5-7 percent of a formaldehyde adduct with an allyl carbamate providing N-methylol functionality, said allyl carbamate having the formula:
Claim 16
Dependent Claim
56 words
An aqueous emulsion comprising an aqueous medium having colloidally suspended therein an emulsion copolymer consisting essentially of from 5-40 percent of ethylene, at least 55 percent of vinyl acetate, and monomers providing thermosetting characteristics and containing from 0.5-7 percent of a formaldehyde adduct with an allyl carbamate providing N-methylol functionality, said allyl carbamate having the formula:
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |