US3396128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for promoting crystallization of unsaturated polyester resins
Assignee: Takeda Pharmaceutical Co Ltd
•
Filing: 1963-05-01
•
Granted: 1968-08-06
•
Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 Matumoto Katumi
- 👤 Iwai Takao
- 👤 Fujioka Yasunari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; Y; Y10; Y10S; Y10S260/00; Y10S260/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD OF PROMOTING CRYSTALLIZATION, FROM NONCRYSTALLINE STATE, OF UNSATURATED POLYESTER RESIN WHICH IS CRYSTALLINE AT ROOM TEMPERATURE, WHICH CONSISTS ESSENTIALLY IN INCOPORATING FROM ABOUT 0.1 TO 5.0 PERCENT BY WEIGHT OF METAL SALT OF HIGHER FATTY ACID INTO THE SAID UNSATURATED POLYESTER RESIN PRIOR TO CRYSTALLIZTION.
Claim 2
Independent Claim
47 words
A METHOD OF PROMOTING CRYSTALLIZATION, FROM NONCRYSTALLINE STATE, OF UNSATURATED POLYESTER RESIN WHICH IS CRYSTALLINE AT ROOM TEMPERATURE, WHICH CONSISTS ESSENTIALLY IN INCOPORATING FROM ABOUT 0.1 TO 5.0 PERCENT BY WEIGHT OF METAL SALT OF HIGHER FATTY ACID INTO THE SAID UNSATURATED POLYESTER RESIN PRIOR TO CRYSTALLIZTION.
References Cited (Backward Citations)
GB644287A
Cited
US2642410A
Cited
US2795563A
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US2939854A
Cited
GB815084A
Cited
US3002942A
Cited
US3179530A
Cited
US3219604A
Cited
US3196118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |