US3081269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamable composition comprising a novolac resin, a monoalkyl-tri(polyalkoxydialkylsiloxy)-silane, a curing agent, and a blowing agent, and process of making same
Assignee: Owens Corning
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Filing: 1961-07-24
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Granted: 1963-03-12
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Expires: 1981-07-24
Abstract
No abstract record available.
Inventors
- 👤 Richard F Shannon
- 👤 Philip W Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:13
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; B; B29; B29L; B29L2007/00; B29L2009/00; C08J2361/00; C08J2361/04; C08J2361/06; C08J2483/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A THERMOSETTABLE COMPOSITION COMPRISING ABOUT 80 PARTS OF A NOVOLAC RESIN, A QUANTITY OF CURING AGENT WHICH IS REATIVE WITH THE NOVOLAC RESIN, BY CONNECTING MOLECULES THEREOF THROUGH METHYLENE GROUPS, AND SUFFICIENT IN AMOUNT TO CONVERT, AT AN ELEVATED TEMPERATURE, THE NOVOLAC RESIN TO A THERMOSET CONDITION, AND FROM ABOUT 0.2 PARTS TO ABOUT 10 PARTS OF A MONOALKYL-TRI(POLYALKOXDIALKYSILOXY)-SILANE OF THE FORMULA RSIZ3, WHEREIN R IS AN ALKALY
Claim 2
Dependent Claim
68 words
A THERMOSETTABLE COMPOSITION COMPRISING ABOUT 80 PARTS OF A NOVOLAC RESIN, A QUANTITY OF CURING AGENT WHICH IS REATIVE WITH THE NOVOLAC RESIN, BY CONNECTING MOLECULES THEREOF THROUGH METHYLENE GROUPS, AND SUFFICIENT IN AMOUNT TO CONVERT, AT AN ELEVATED TEMPERATURE, THE NOVOLAC RESIN TO A THERMOSET CONDITION, AND FROM ABOUT 0.2 PARTS TO ABOUT 10 PARTS OF A MONOALKYL-TRI(POLYALKOXDIALKYSILOXY)-SILANE OF THE FORMULA RSIZ3, WHEREIN R IS AN ALKALY
References Cited (Backward Citations)
US2834748A
Cited
US2993871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |