Patent US3025181A successfully refreshed from Google Patents.
US3025181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated fibrous products, compositions and methods for making them
Assignee: Rohm and Haas Co
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Filing: 1959-09-04
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Granted: 1962-03-13
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Albert C Nuessle
- 👤 Edwin H Kroeker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/05; D06M15/07; D06M15/19; D06M15/21; D06M15/263; D06M15/273; D06M15/37; D06M15/39; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/34; D21H19/80; D21H19/82; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31895; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2221; Y10T442/2549; Y10T442/2566
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A METHOD OF WATER-PROOFING A FLEXIBLE, FIBROUS ARTICLE WHICH COMPRISES APPLYING TO THE ARTICLE A COATING COMPOSITION COMPRISING A COPOLYMER OF COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED MONOMERS COMPRISING ABOUT 1 TO 10% BY WEIGHT OF GLYCIDYL METHACRYLATE AND ABOUT 70 TO 99% BY WEIGHT OF AT LEAST ONE ESTER OF ARCYLIC ACID WITH A SATURATED ALCOHOL HAVING 1 TO 18 CARBON ATOMS, DRYING THE COATED ARTICLE, THEN APPLYING A COATING COMPOSITION COMPRISING 25 TO 50% BY WEIGHT OF AN ESTER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ACETATE PROPIONATE AND CELLULOSE ACETATE BUTYRATE AND 50 TO 75% BY WEIGHT OF A COPOLYMER OF COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED MONOMERS COMPRISING ABOUT 1 TO 10% BY WEIGHT OF GLYCIDYL METHACRYLATE AND ABOUT 75 TO 99% BY WEIGHT OF AT LEAST ONE ESTER OF ARCYLIC ACID WITH A SATURATED ALCOHOL HAVING 1 TO 4 CARBON ATOMS DRYING THE ARTICLE AND CURING THE COATINGS THEREON BY HEATING THE ARTICLE TO A TEMPERATURE OF 220* TO 450* F. TO RENDER THE COATINGS RESISTANT TO SOLVENTS.
Claim 2
Dependent Claim
69 words
COATING COMPOSITION COMPRISING 25 TO 50% BY WEIGHT OF A CELLULOSE ESTER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ACETATE PROPIONATE AND CELLULOSE ACETATE BUTYRATE AND 50 TO 75% BY WEIGHT OF A COPOLYMER OF COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED MONOMERS COMPRISING 1 TO 10% BY WEIGHT OF GLYCIDYL METHACRYLATE AND 70 TO 99% BY WEIGHT OF AN ESTER OF ARYCLIC ACID WITH AN ALKANOL HAVING 1 TO 18 CARBON ATOMS.
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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |