Patent US3933691A successfully refreshed from Google Patents.
US3933691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushed foam-backed fabrics and emulsions for producing the same
Assignee: Ingredion Inc
•
Filing: 1974-01-16
•
Granted: 1976-01-20
•
Expires: 1994-01-16
Abstract
Abstract Crushed foam-backed fabrics possessing improved dry cleaning resistance and cold crack resistance are provided using aqueous emulsion copolymers of ethylene and vinyl acetate containing from 3-9% of cross-linking monomers and having a molecular weight of at least about 300,000.
Inventors
- 👤 Martin K. Lindemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:44
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08; C08J; C08J9/00; C08J9/30; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249975
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
90 words
A pigmented foam comprising an aqueous emulsion comprising an aqueous medium having colloidally suspended therein an emulsion copolymer consisting essentially of from 15-40% ethylene, from 3-9% of cross-linking monomers, balance vinyl acetate, said copolymer having a molecular weight of at least about 300,000, said emulsion containing dispersed pigment in a pigment to binder weight ratio of from 0.1:1 to 2:1 and surfactant to stabilize the same, said emulsion having whipped therein air in an amount increasing the volume of said emulsion from about 5 to about 10-fold its original volume.
Claim 2
Dependent Claim
90 words
A pigmented foam comprising an aqueous emulsion comprising an aqueous medium having colloidally suspended therein an emulsion copolymer consisting essentially of from 15-40% ethylene, from 3-9% of cross-linking monomers, balance vinyl acetate, said copolymer having a molecular weight of at least about 300,000, said emulsion containing dispersed pigment in a pigment to binder weight ratio of from 0.1:1 to 2:1 and surfactant to stabilize the same, said emulsion having whipped therein air in an amount increasing the volume of said emulsion from about 5 to about 10-fold its original volume.
Claim 3
Dependent Claim
21 words
A pigmented foam as recited in claim 1 in which said cross-linking monomers include monoethylenically unsaturated monomer carrying the N-methylol group.
Claim 4
Dependent Claim
23 words
A pigmented foam as recited in claim 2 in which the said N-methylol group is etherified with a C 1 -C 8 alcohol.
Claim 5
Dependent Claim
23 words
A pigmented foam as recited in claim 2 in which the said N-methylol group is etherified with A C 1 -C 4 alcohol.
Claim 6
Dependent Claim
26 words
A pigmented foam as recited in claim 2 in which said cross-linking monomers include a proportion of monomer carrying active hydrogen reactive with the N-methylol group.
Claim 7
Dependent Claim
27 words
A pigmented foam as recited in claim 5 in which said monomer carrying active hydrogen is selected from the group consisting of monoethylenic amides and monoethylenic alcohols.
Claim 8
Dependent Claim
21 words
A pigmented foam as recited in claim 2 in which said cross-linking monomers further include from 0.5-3% of a monoethylenic acid.
Claim 9
Dependent Claim
55 words
A pigmented foam as recited in claim 2 in which said monomer carrying the N-methylol group is an adduct of formaldehyde with 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 10
Dependent Claim
25 words
A pigmented foam as recited in claim 8 in which said adduct has the formula: ##EQU5## in which X is selected from hydrogen and methylol.
Claim 11
Dependent Claim
22 words
A pigmented foam as recited in claim 9 in which said formaldehyde adduct is etherified with a C 1 -C 4 alcohol.
Claim 12
Dependent Claim
18 words
A pigmented foam as recited in claim 1 in which the cross-linking monomer component carries the epoxy group.
Claim 13
Dependent Claim
20 words
A pigmented foam as recited in claim 1 in which said copolymer has a molecular weight of at least 350,000.
Claim 14
Dependent Claim
22 words
A pigmented foam as recited in claim 1 in which said emulsion includes dissolved thickener providing a viscosity of from 500-5,000 centipoises.
Claim 15
Dependent Claim
22 words
A fabric having a surface thereof coated with the pigmented foam of claim 1, said foam being in a cured compacted condition.
References Cited (Backward Citations)
US3844990A
Cited
US3553116A
Cited
US3642680A
Cited
US3692723A
Cited
US3547845A
Cited
US3714105A
Cited
US3607341A
Cited
US3732184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |