US3025249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed resin obtained by the reaction of a polyepoxide, a trialkylboroxine and an amine
Assignee: Shell USA Inc
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Filing: 1960-02-29
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Granted: 1962-03-13
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Expires: 1980-02-29
Abstract
No abstract record available.
Inventors
- 👤 Harold H Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:47
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/141; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4078; C08J9/02; C08J9/143; C08J2363/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A FOAM RESIN PRODUCT OBTAINED BY THE SIMULTANEOUS REACTION OF A MIXTURE OF (1) A RESIN-FORMING LIQUID POLYEPOXIDE REACTANT HAVING AN EPOXY EQUIVALENT GREATER THAN 1.0, (2) AT LEAST 10 PARTS, PER 100 PARTS POLYEPOXIDE, OF A TRIALKOXYBOROXINE HAVING FROM ONE TO FOUR CARBON ATOMS IN EACH ALKOXY GROUP, AND (3) AN AMINE CONTAINING AT LEAST ONE HYDROGEN ATTACHED TO AN AMINE NITROGEN.
Claim 2
Dependent Claim
63 words
A FOAM RESIN PRODUCT OBTAINED BY THE SIMULTANEOUS REACTION OF A MIXTURE OF (1) A RESIN-FORMING LIQUID POLYEPOXIDE REACTANT HAVING AN EPOXY EQUIVALENT GREATER THAN 1.0, (2) AT LEAST 10 PARTS, PER 100 PARTS POLYEPOXIDE, OF A TRIALKOXYBOROXINE HAVING FROM ONE TO FOUR CARBON ATOMS IN EACH ALKOXY GROUP, AND (3) AN AMINE CONTAINING AT LEAST ONE HYDROGEN ATTACHED TO AN AMINE NITROGEN.
References Cited (Backward Citations)
GB783956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |