Patent US2224702A successfully refreshed from Google Patents.
Patent US3925293A successfully refreshed from Google Patents.
US3925293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-temperature curable latices of vinyl and acrylic monomers
Assignee: Goodrich Corp
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Filing: 1974-07-22
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Granted: 1975-12-09
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Expires: 1994-07-22
Abstract
Abstract Nonwoven fabrics, textiles, papers and other substrates treated with a polymer latex derived predominantly from acrylic esters and/or vinyl esters are curable at low temperatures to obtain optimum or near optimum physical properties. The articles may be coated, impregnated or saturated with the polymer latex.
Inventors
- 👤 Donald P Knechtges
- 👤 Bela K Mikoflavy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:04
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F218/00; C08F218/02; C08F218/04; C08F218/08; C08F220/26; C08F220/28; C08F220/281; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
33 words
AN AQEOUS POLYMER LATEX SUITABLE FOR IMPREGNATING, SATURATING AND COATING SUBSTRATES CONSISTING ESSENTIALLY OF ABOUT 60% TO 91% BY WEIGHT, BASED ON THE TOTAL MONOMERS, OF (A) AN ACRYLIC ESTER OF THE FORMULA
Claim 2
Dependent Claim
33 words
AN AQEOUS POLYMER LATEX SUITABLE FOR IMPREGNATING, SATURATING AND COATING SUBSTRATES CONSISTING ESSENTIALLY OF ABOUT 60% TO 91% BY WEIGHT, BASED ON THE TOTAL MONOMERS, OF (A) AN ACRYLIC ESTER OF THE FORMULA
Claim 3
Dependent Claim
53 words
The aqueous polymer latex of claim 1 wherein (a) is vinyl acetate or a lower alkyl ester of acrylic acid or methacrylic acid wherein the alkyl substituent contains from 1 to 8 carbon atoms, (b) is vinyl chloride, (c) is acrylic acid or methacrylic acid and (d) is N-methylol acrylamide or N-methylol methacrylamide.
Claim 4
Dependent Claim
47 words
The aqueous copolymer latex of claim 1 which contains about 2 to 15% by weight of (e) and wherein (a) is present in an amount from about 60 to 91% by weight with from 1 to 3% by weight (c) and 1 to 3% by weight (d).
Claim 5
Dependent Claim
53 words
The aqueous polymer latex of claim 3 wherein (a) is vinyl acetate or a lower alkyl ester of acrylic acid or methacrYlic acid wherein the alkyl substituent contains from 1 to 8 carbon atoms, (b) is vinyl chloride, (c) is acrylic acid or methacrylic acid and (d) is N-methylol acrylamide or N-methylol methacrylamide.
Claim 6
Dependent Claim
11 words
A latex of claim 4 wherein (e) is acrylonitrile or methacrylonitrile.
Claim 7
Dependent Claim
10 words
A latex of claim 2 wherein (a) is ethyl acrylate.
Claim 8
Dependent Claim
10 words
A latex of claim 4 wherein (a) is ethyl acrylate.
Claim 9
Dependent Claim
10 words
A latex of claim 5 wherein (a) is ethyl acrylate.
Claim 10
Dependent Claim
15 words
A latex of claim 6 wherein (c) is acrylic acid and (d) is N-methylol acrylamide.
Claim 11
Dependent Claim
15 words
A latex of claim 8 wherein (c) is acrylic acid and (d) is N-methylol acrylamide.
References Cited (Backward Citations)
US3748295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |