Patent US3934095A successfully refreshed from Google Patents.
Patent US3198770A successfully refreshed from Google Patents.
US3198770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable fluorinated copolymer compositions and the curing thereof with certain alkylenimine derivatives
Assignee: 3M Co
•
Filing: 1960-04-04
•
Granted: 1965-08-03
•
Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Nathaniel L Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C07C43/137; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6826; C08G63/91; C08G63/914; C08G63/916
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A SOLID CURED PRODUCT WHICH IS INCAPABLE OF VISCOUS FLOW AT TEMPERATURE BELOW ABOUT 100*C. AND WHICH IS A PRODUCT OF (1) A SUBSTANTIALLY LIQUID FLUORINATED COPOLYMER OF AN ALPHA-BETA ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND AT LEAST ONE TERMINALLY UNSATURATED ALIPHATIC OLEFINIC COMPOUND, SAID OLEFINIC COMPOUND BEING AT LEAST HALF FLUROINATED AND HAVING LESS THAN 10 CARBON ATOMS, SAID COPOLYMER HAVING FROM 2 TO ABOUT 15 CARBOXYL GROUPS PER MOLECULE, HAVING FROM 0.1 TO ABOUT 3 MILLEQUIVALENTS OF CARBOXYL GROUPS PER GRAM OF COPOLYMER, HAVING MONOMER UNITS CORRESPONDING TO BETWEEN ABOUT 0.1 AND ABOUT 10 MOL PERCENT OF SAID UNSATRUATED CARBOXYLIC ACID, AND HAVING A MOLECULAR WEIGHT BELOW ABOUT 50,000, AND (2) BETWEEN ABOUT STOICHIOMETRIC AND ABOUT 70 PERCENT EXCESS AMOUNT, BASED ON SAID FLURONATED COPOLYMER, OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
132 words
A SOLID CURED PRODUCT WHICH IS INCAPABLE OF VISCOUS FLOW AT TEMPERATURE BELOW ABOUT 100*C. AND WHICH IS A PRODUCT OF (1) A SUBSTANTIALLY LIQUID FLUORINATED COPOLYMER OF AN ALPHA-BETA ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND AT LEAST ONE TERMINALLY UNSATURATED ALIPHATIC OLEFINIC COMPOUND, SAID OLEFINIC COMPOUND BEING AT LEAST HALF FLUROINATED AND HAVING LESS THAN 10 CARBON ATOMS, SAID COPOLYMER HAVING FROM 2 TO ABOUT 15 CARBOXYL GROUPS PER MOLECULE, HAVING FROM 0.1 TO ABOUT 3 MILLEQUIVALENTS OF CARBOXYL GROUPS PER GRAM OF COPOLYMER, HAVING MONOMER UNITS CORRESPONDING TO BETWEEN ABOUT 0.1 AND ABOUT 10 MOL PERCENT OF SAID UNSATRUATED CARBOXYLIC ACID, AND HAVING A MOLECULAR WEIGHT BELOW ABOUT 50,000, AND (2) BETWEEN ABOUT STOICHIOMETRIC AND ABOUT 70 PERCENT EXCESS AMOUNT, BASED ON SAID FLURONATED COPOLYMER, OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2933416A
Cited
DE900137C
Cited
US2594145A
Cited
US2694696A
Cited
US2867601A
Cited
US2915480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |