US3029227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linking and cross-linking agents
Assignee: 3M Co
•
Filing: 1956-08-20
•
Granted: 1962-04-10
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Lester E Robb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR CROSS-LINKING A LINEAR CHAIN SATURATED POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMER, SAID MONOMER HAVING SUBSTUENTS SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE AND, BROMINE AND WHICH COMPRISES MIXING SAID POLYMER WITH 0.1 AND 10 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF POLYMER OF A CARBAMIC ACID SALT OF AN ACYCLIC POLYFUNCTIONAL AMINE, SAID AMINE CONTAINING AMINO GROUPS AS THE SOLE REACTIVE GROUPS, DECOMPOSING SAID SALT BY HEATING TO LIBERATE THE FREE AMINE AND CARBON DIOXIDE AT A TEMPERATURE BETWEEN 30* F. AND 205* F. AND REACTING THE AMINE WITH SAID POLYMER AT A TEMPERATURE BELOW 450* F.
Claim 2
Dependent Claim
103 words
A PROCESS FOR CROSS-LINKING A LINEAR CHAIN SATURATED POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMER, SAID MONOMER HAVING SUBSTUENTS SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE AND, BROMINE AND WHICH COMPRISES MIXING SAID POLYMER WITH 0.1 AND 10 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF POLYMER OF A CARBAMIC ACID SALT OF AN ACYCLIC POLYFUNCTIONAL AMINE, SAID AMINE CONTAINING AMINO GROUPS AS THE SOLE REACTIVE GROUPS, DECOMPOSING SAID SALT BY HEATING TO LIBERATE THE FREE AMINE AND CARBON DIOXIDE AT A TEMPERATURE BETWEEN 30* F. AND 205* F. AND REACTING THE AMINE WITH SAID POLYMER AT A TEMPERATURE BELOW 450* F.
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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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |