US2875164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonic acid catalyzed cellulose acetate butyrate urea-formaldehyde coating composition for paper and process of preparation
Assignee: Eastman Kodak Co
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Filing: 1957-02-06
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Granted: 1959-02-24
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Expires: 1977-02-06
Abstract
No abstract record available.
Inventors
- 👤 Fred M Ball
- 👤 Charles H Coney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:09
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; D21H19/24; D21H19/26; D21H19/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A LACQUER CONTAINING 30-40% BY WEIGHT SOLIDS BASIS CELLULOSE ACETATE BUTYRATE, 20-50% BY WEIGHT SOLIDS BASIS PARTIALLY POLYMERIZED BUTYLATED UREA-FORMALDEHYDE IN A XYLENE-BUTANOL SOLUTION, 20-30% BY WEIGHT SOLIDS BASIS POLY ALPHA METHYL STYRENE, A SOLVENT MIXTURE CONTAINING TOLEUENE, ANHYDROUS ETHYL ALCHOL, AND ISOBUTYL ACETATE, AND A MODIFIED SULFONIC ACID CATALYST CONTAINING A MIXTURE OF METHYL, ETHYL AND PROPYL SULFONIC ACIDS DISSOLVED IN ABOUT AN EQUAL AMOUNT BY WEIGHT OF N-BUTYL ALCOHOL.
Claim 2
Dependent Claim
71 words
A LACQUER CONTAINING 30-40% BY WEIGHT SOLIDS BASIS CELLULOSE ACETATE BUTYRATE, 20-50% BY WEIGHT SOLIDS BASIS PARTIALLY POLYMERIZED BUTYLATED UREA-FORMALDEHYDE IN A XYLENE-BUTANOL SOLUTION, 20-30% BY WEIGHT SOLIDS BASIS POLY ALPHA METHYL STYRENE, A SOLVENT MIXTURE CONTAINING TOLEUENE, ANHYDROUS ETHYL ALCHOL, AND ISOBUTYL ACETATE, AND A MODIFIED SULFONIC ACID CATALYST CONTAINING A MIXTURE OF METHYL, ETHYL AND PROPYL SULFONIC ACIDS DISSOLVED IN ABOUT AN EQUAL AMOUNT BY WEIGHT OF N-BUTYL ALCOHOL.
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |