Patent US4163387A successfully refreshed from Google Patents.
Patent US3318971A successfully refreshed from Google Patents.
US3318971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent-soluble, heat-hardening, non-gelled resin comprising acrylamide-containing interpolymers carrying a reactive hydroxy group condensed with hydroxy-terminated polysiloxane
Assignee: De Soto Chemical Coatings Inc
•
Filing: 1963-05-10
•
Granted: 1967-05-09
•
Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Le Roy A Chloupek
- 👤 Sekmakas Kazys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:23
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C08F8/42; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/42; C08G77/442; C08L; C08L67/00; C08L67/06; C08L83/00; C08L83/04; C09D157/00; C09D157/06; C09D157/12; C08G77/14; C08G77/16; C08G77/70; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SOLVENT-SOLUBLE, HEAT-HARDENING, NON-GELLED RESIN COMPRISING: (1) AN INTERPOLYMER OF INTERPOLYMERIZED COMPONENTS COMPRISING: (A) AN ACRYLAMIDE IN AN AMOUNT OF FROM 2-50% BY WEIGHT BASED ON THE WEIGHT OF THE INTERPOLYMERIZED COMPONENTS; AND (B) ETHYLENICALLY UNSATURATED MATERIAL COPOLYMERIZABLE WITH SAID AMIDE AND CARRYING A REACTIVE HYDROXYL GROUP AND (2) FROM 2 TO 75% BY WEIGHT BASED ON THE WEIGHT OF THE RESIN OF HYDROCARBON-SUBSTITUTED POLYSILOXANE HAVING A PLURALITY OF SILICON-BONDED OH GROUPS, SAID POLYSILOXANE BEING CONDENSED WITH SAID INTERPOLYMERIZED COMPONENTS TO FORM SAID RESIN BY A REACTION INCLUDING THE REMOVAL OF WATER, AND SAID INTERPOLYMER BEING REACTED WITH FROM 0.2-5 EQUIVALENTS OF ALDEHYDE PER AMIDE GROUP IN SAID INTERPOLYMER TO GENERATE AMIDO ALKYLOL GROUPS THEREIN.
Claim 2
Dependent Claim
115 words
A SOLVENT-SOLUBLE, HEAT-HARDENING, NON-GELLED RESIN COMPRISING: (1) AN INTERPOLYMER OF INTERPOLYMERIZED COMPONENTS COMPRISING: (A) AN ACRYLAMIDE IN AN AMOUNT OF FROM 2-50% BY WEIGHT BASED ON THE WEIGHT OF THE INTERPOLYMERIZED COMPONENTS; AND (B) ETHYLENICALLY UNSATURATED MATERIAL COPOLYMERIZABLE WITH SAID AMIDE AND CARRYING A REACTIVE HYDROXYL GROUP AND (2) FROM 2 TO 75% BY WEIGHT BASED ON THE WEIGHT OF THE RESIN OF HYDROCARBON-SUBSTITUTED POLYSILOXANE HAVING A PLURALITY OF SILICON-BONDED OH GROUPS, SAID POLYSILOXANE BEING CONDENSED WITH SAID INTERPOLYMERIZED COMPONENTS TO FORM SAID RESIN BY A REACTION INCLUDING THE REMOVAL OF WATER, AND SAID INTERPOLYMER BEING REACTED WITH FROM 0.2-5 EQUIVALENTS OF ALDEHYDE PER AMIDE GROUP IN SAID INTERPOLYMER TO GENERATE AMIDO ALKYLOL GROUPS THEREIN.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |