Patent US3205197A successfully refreshed from Google Patents.
US3205197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing of organopolysiloxanes
Assignee: —
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Filing: —
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Granted: 1965-09-07
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Expires: 1982-09-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:23
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60; C08G77/04; C08G77/14; C08G77/16; C08G77/22; C08G77/26; C08G77/70; C08K; C08K5/00; C08K5/16; C08K5/17; C08L; C08L63/00; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A SOLID, CURED PRODUCT OF A CURABLE ORGANOPOLYSILOXANE COMPOSITION CONSISTING ESSENTIALLY OF (A) AN ORGANOPOLYSILOXANE CONTAINING SILICON-BONDED HYDROXYL GROUPS (B) AN AMINE SELECTED FROM THE CLASS CONSISTING OF PRIMARY AMINES, SECONDARY AMINES, AND TERTIARY AMINES, AND (C) AN ORGANIC COMPOUND CONTAINING AN EPOXY GROUP, SAID AMINE AND SAID ORGANIC COMPOUND BEING PRESENT IN AN AMOUNT EQUAL TO FROM ABOUT 0.05 TO 5% BY WEIGHT, BASED ON THE WEIGHT OF SAID ORGANOPOLYSILOXANE, THE ORGANO GROUPS OF SAID ORGANOPOLYSILIOXANE BEING SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND CYANOALKYL RADICALS, THERE BEING PRESENT FROM 0.01 TO 1 SILICON-BONDED HYDROXYL GROUP PER SILICON ATOM IN SAID ORGANOPOLYSILOXANE AND FROM 1.0 TO 1.98 SILICONBONDED ORGANO GROUPS PER SILICON ATOM WITH THE TOTAL NUMBER OF SILICON-BONDED HYDROXYL GROUPS AND SILICONBONDED ORGANO GROUPS PER SILICON ATOM BEING FROM 1.01 TO 2.1, INCLUSIVE.
Claim 2
Dependent Claim
142 words
A SOLID, CURED PRODUCT OF A CURABLE ORGANOPOLYSILOXANE COMPOSITION CONSISTING ESSENTIALLY OF (A) AN ORGANOPOLYSILOXANE CONTAINING SILICON-BONDED HYDROXYL GROUPS (B) AN AMINE SELECTED FROM THE CLASS CONSISTING OF PRIMARY AMINES, SECONDARY AMINES, AND TERTIARY AMINES, AND (C) AN ORGANIC COMPOUND CONTAINING AN EPOXY GROUP, SAID AMINE AND SAID ORGANIC COMPOUND BEING PRESENT IN AN AMOUNT EQUAL TO FROM ABOUT 0.05 TO 5% BY WEIGHT, BASED ON THE WEIGHT OF SAID ORGANOPOLYSILOXANE, THE ORGANO GROUPS OF SAID ORGANOPOLYSILIOXANE BEING SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND CYANOALKYL RADICALS, THERE BEING PRESENT FROM 0.01 TO 1 SILICON-BONDED HYDROXYL GROUP PER SILICON ATOM IN SAID ORGANOPOLYSILOXANE AND FROM 1.0 TO 1.98 SILICONBONDED ORGANO GROUPS PER SILICON ATOM WITH THE TOTAL NUMBER OF SILICON-BONDED HYDROXYL GROUPS AND SILICONBONDED ORGANO GROUPS PER SILICON ATOM BEING FROM 1.01 TO 2.1, INCLUSIVE.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |