US3737402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flatting agents,flatting compositions and method for their preparation
Assignee: Guardsman Products Inc
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Filing: 1971-09-01
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Granted: 1973-06-05
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Expires: 1991-09-01
Abstract
Abstract SUPERIOR FLATTENING AGENTS FOR USE IN FLATTING COMPOSITIONS WHICH PROVIDE SMOOTH TRANSPARENT FLAT COATINGS HAVING IMPROVED RESISTANCE TO WHITENING, BURNISHING AND ABRASION THAT WITHSTAND SUBJECTION TO ELEVATED TEMPERATURES WITHOUT LOSS OF FLATNESS ARE DISCRETE PARTICLES HAVING A FINE SIZE RNAGE FOR ABOUT 0.02 TO ABOUT 10 MICRONS OF A CRYSTALLINE, THERMOPLASTIC, POLAR ORGANIC POLYMER HAVING A SOFTENING POINT OF FROM ABOUT 120*C. TO ABOUT 240*C. WHICH IS INSOLUBLE IN COMMON COATING SOLVENTS FOR FILMFORMING ORGANIC BINDERS AND SOLUBLE ONLY AT ELEVATED TEMPERATURES IN STRONG ORGANIC SOLVENTS FOR ORGANIC POLYMERS.
Inventors
- 👤 Vries E De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:47
CPC Classifications
C; C09; C09D; C09D175/00; C09D175/04; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0838; C08G18/0842; C08G18/0861; C08G18/0871; C08G18/10; C09D7/00; C09D7/40; C09D7/42
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |