US3300418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed materials from polyepoxy compounds
Assignee: Bayer AG
•
Filing: 1963-01-02
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Granted: 1967-01-24
•
Expires: 1983-01-02
Abstract
No abstract record available.
Inventors
- 👤 Andres Karl-Heinz
- 👤 Steinbach Hans-Horst
- 👤 Damm Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:57
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/065; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/306; C08G59/32; C08G59/38; C08G77/00; C08G77/04; C08G77/38; C08J9/12; C08J9/14; C08J2363/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A PROCESS FOR FOAMING AND RESINIGYING A GLYCIDYL POLYETHER OF A POLYHYDRIC COMPOUND OF THE GROUP CONSISTING OF A POLYHYDRIC ALCOHOL AND A PHENOL HAVING AT LEAST TWO HYDROXYL GROUPS, SAID GLYCIDYL POLYETHER HAVING AN EPOXY EQUIVALENCY OF GREATER THAN 1, USING (A) A BORANTE OF METAL SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL, AN EARTH ALKALI-METAL AND ZINC BLOWING AGENT AND (B) A POLYFUNCTIONAL AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY POLYFUNCTIONAL AMINES AS CURING AGENT, THE IMPROVEMENT WHICH COMPRISES FOAMING AND CURING THE MIXTUREOF SAID GLYCIDYL POLYETHER, BLOWING AGENT AND CURING AGENT IN THE PRESENCE OF 0.5 TO 10% BASED ON THE WEIGHT OF SAID GLYCIDAL POLYETHER OF AN ORGANOPOLYSILIOXINE HAVING (A) CHAIN MEMBERS OF THE STRUCTURE (I)
Claim 2
Dependent Claim
126 words
IN A PROCESS FOR FOAMING AND RESINIGYING A GLYCIDYL POLYETHER OF A POLYHYDRIC COMPOUND OF THE GROUP CONSISTING OF A POLYHYDRIC ALCOHOL AND A PHENOL HAVING AT LEAST TWO HYDROXYL GROUPS, SAID GLYCIDYL POLYETHER HAVING AN EPOXY EQUIVALENCY OF GREATER THAN 1, USING (A) A BORANTE OF METAL SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL, AN EARTH ALKALI-METAL AND ZINC BLOWING AGENT AND (B) A POLYFUNCTIONAL AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY POLYFUNCTIONAL AMINES AS CURING AGENT, THE IMPROVEMENT WHICH COMPRISES FOAMING AND CURING THE MIXTUREOF SAID GLYCIDYL POLYETHER, BLOWING AGENT AND CURING AGENT IN THE PRESENCE OF 0.5 TO 10% BASED ON THE WEIGHT OF SAID GLYCIDAL POLYETHER OF AN ORGANOPOLYSILIOXINE HAVING (A) CHAIN MEMBERS OF THE STRUCTURE (I)
References Cited (Backward Citations)
US3131161A
Cited
US3025249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |