Patent US3036975A successfully refreshed from Google Patents.
US3036975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid-curing epoxy resin compositions and method of making
Assignee: Honeywell International Inc
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Filing: 1959-01-02
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Granted: 1962-05-29
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Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Taub Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:49
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
EPOXY RESINS OBTAINED BY CURING COMPLEX POLY (AMINO-AMIDE) EPOXIDE COMPOSITIONS CONTAINING IN SUBSTANTIAL AMOUNTS COMPLEX RESINOUS EPOXIDES HAVING 1,2 EPOXIDE GROUPS AND HYDROXYL GROUPS ALONG THE POLYMER CHAIN AND THE REACTION PRODUCTS OBTAINED BY CONDENSING CAPROLACTAM WITH A POLYAMINE CONTAINING AT LEAST TWO PRIMARY AMINO GROUPS IN THE MOLAR RATIO OF AT LEAST ABOUT 1 MOL OF CAPROLACTAM TO 1 MOL OF POLYAMINE.
Claim 2
Dependent Claim
63 words
EPOXY RESINS OBTAINED BY CURING COMPLEX POLY (AMINO-AMIDE) EPOXIDE COMPOSITIONS CONTAINING IN SUBSTANTIAL AMOUNTS COMPLEX RESINOUS EPOXIDES HAVING 1,2 EPOXIDE GROUPS AND HYDROXYL GROUPS ALONG THE POLYMER CHAIN AND THE REACTION PRODUCTS OBTAINED BY CONDENSING CAPROLACTAM WITH A POLYAMINE CONTAINING AT LEAST TWO PRIMARY AMINO GROUPS IN THE MOLAR RATIO OF AT LEAST ABOUT 1 MOL OF CAPROLACTAM TO 1 MOL OF POLYAMINE.
Claim 3
Independent Claim
90 words
THE METHOD OF PREPARING AN EPOXY RESIN CASTING COMPRISING BLENDING AN EPOXY RESIN HAVING 1,2 EPOXIDE GROUPS AND HYDROXYL GROUPS ALONG THE POLYMER CHAIN WITH 10-35% OF A POLY (AMINO-AMIDE) OBTAINED BY REACTING CAPROLACTAM WITH A POLYAMINE CONTAINING AT LEAST TWO PRIMARY AMINO GROUPS IN THE MOLAR RATIO OF AT LEAST ABOUT 1 MOL OF CAPROLACTAM TO 1 MOL OF POLYAMINE, INTRODUCING THE MIXTURE SO OBTAINED INTO A MOLD, PERMITTING IT TO HARDEN AT ROOM TEMPERATURE AND CURING THE HARDENED PRODUCT AT A TEMPERATURE OF ABOUT 120*C. FOR SEVERAL HOURS.
Claim 4
Independent Claim
90 words
THE METHOD OF PREPARING AN EPOXY RESIN CASTING COMPRISING BLENDING AN EPOXY RESIN HAVING 1,2 EPOXIDE GROUPS AND HYDROXYL GROUPS ALONG THE POLYMER CHAIN WITH 10-35% OF A POLY (AMINO-AMIDE) OBTAINED BY REACTING CAPROLACTAM WITH A POLYAMINE CONTAINING AT LEAST TWO PRIMARY AMINO GROUPS IN THE MOLAR RATIO OF AT LEAST ABOUT 1 MOL OF CAPROLACTAM TO 1 MOL OF POLYAMINE, INTRODUCING THE MIXTURE SO OBTAINED INTO A MOLD, PERMITTING IT TO HARDEN AT ROOM TEMPERATURE AND CURING THE HARDENED PRODUCT AT A TEMPERATURE OF ABOUT 120*C. FOR SEVERAL HOURS.
References Cited (Backward Citations)
US2847342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |