US3278638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally catalyzed heat-hardening alkaline reacted alkylolated amide interpolymer
Assignee: De Soto Chemical Coatings Inc
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Filing: 1962-09-24
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Granted: 1966-10-11
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Sekmakas Kazys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:17
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C09; C09D; C09D133/00; C09D133/24; C09D133/26; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A STORAGE STABLE AND INTERNALLY CATALYZED HEATHARDENING SOLVENT-SOLUBLE NON-GELLED PRODUCT PRODUCED BY THE ADDITION INTERPOLYMERIZATION OF (A) A MONOAMIDE OF AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID, (B) POLYMERIZABLE ETHYLENEICALLY UNSATURATED MATERIAL COPOLYMERIZABLE WITH SAID AMIDE, AND (C) ETHYLENICALLY UNSATURATED CARBOXYLIC ACID-CONTAINING MATERIAL COMPRISING CARBOXYL TERMINATED UNSATURATED POLYESTER RESIN, SAID INTERPOLYMER BEING REACTED WITH ALDEHYDE IN THE PRESENCE OF ALKALINE MATERIAL TO REPLACE AMIDE HYDROGEN ATOMS BY THE STRUCTURE.
Claim 2
Dependent Claim
67 words
A STORAGE STABLE AND INTERNALLY CATALYZED HEATHARDENING SOLVENT-SOLUBLE NON-GELLED PRODUCT PRODUCED BY THE ADDITION INTERPOLYMERIZATION OF (A) A MONOAMIDE OF AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID, (B) POLYMERIZABLE ETHYLENEICALLY UNSATURATED MATERIAL COPOLYMERIZABLE WITH SAID AMIDE, AND (C) ETHYLENICALLY UNSATURATED CARBOXYLIC ACID-CONTAINING MATERIAL COMPRISING CARBOXYL TERMINATED UNSATURATED POLYESTER RESIN, SAID INTERPOLYMER BEING REACTED WITH ALDEHYDE IN THE PRESENCE OF ALKALINE MATERIAL TO REPLACE AMIDE HYDROGEN ATOMS BY THE STRUCTURE.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |