US3421971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weatherable plastic laminates
Assignee: Formica Corp
•
Filing: 1966-01-07
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Granted: 1969-01-14
•
Expires: 1986-01-07
Abstract
No abstract record available.
Inventors
- 👤 Musa Rasim Kamal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:56
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/3154; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A UNITARY, HEAT AND PRUSSURE CONSOLIDATED WEATHER RESISTANT LAMINATE WHICH CONSISTS OF: (1) A RIGIDITY IMPARTING RESINOUS PLASTIC SUBSTRATE IN SHEET FORM AND (II) AT LEAST ONE ADJACENT SHEET OF A SUBSTANTIALLY TRANSPARENT OVERLAY MEMBER OF ADHERABLE PLYVINYL FLUORIDE, AN ADHERABLE SIDE OF WHICH IS DIRECTLY BONDED TO SAID SUBSTRATE MEMBER BY MEANS OF A CURABLE ADHESIVE MIXTURE WHICH COMPRISES: (A) A REACTIVE, WATER-INSOLUBLE, ESSENTIALLY LINEAR THERMOPLASTIC COPOLYMER OF (1) FROM ABOUT 50% TO 98% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED HARDENING COMONOMER CONTAINING NO FUNCTIONAL GROUPS REACTIVE WITH COMPONENT (B), AS DEFINED HEREINBELOW, (2) FROM ABOUT 50% TO 2% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED COMONOMER CONTAINING AT LEAST ONE FUNCTIONAL GROUP REACTIVE WITH COMPONENT (B), AND (3) FROM ABOUT 0% TO 45% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED SOFTENING COMONOMER CONTAINING NO FUNCTIONAL GROUPS REACTIVE WITH COMPONENT (B), WHEREIN THE SUM OF THE AMOUNTS OF (1), (2) AND (3) IS 100%, AND HAVING AN ULTRAVIOLET LIGHT ABSORBER INCORPORATED IN SAID OVERLAY MEMBER, (B) A CROSS-LINKING AMOUNT OF AN AGENT SELECTED FROM THE GROUP CONSISTING OF A 3,4-EPOXY-CYCLOHEXYLMETHYL, 3,4-EPOXY-CYCLOHEXANECARBOXYLATE AND HEXAMETHOXYMETHYLAMINE.
Claim 2
Dependent Claim
182 words
A UNITARY, HEAT AND PRUSSURE CONSOLIDATED WEATHER RESISTANT LAMINATE WHICH CONSISTS OF: (1) A RIGIDITY IMPARTING RESINOUS PLASTIC SUBSTRATE IN SHEET FORM AND (II) AT LEAST ONE ADJACENT SHEET OF A SUBSTANTIALLY TRANSPARENT OVERLAY MEMBER OF ADHERABLE PLYVINYL FLUORIDE, AN ADHERABLE SIDE OF WHICH IS DIRECTLY BONDED TO SAID SUBSTRATE MEMBER BY MEANS OF A CURABLE ADHESIVE MIXTURE WHICH COMPRISES: (A) A REACTIVE, WATER-INSOLUBLE, ESSENTIALLY LINEAR THERMOPLASTIC COPOLYMER OF (1) FROM ABOUT 50% TO 98% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED HARDENING COMONOMER CONTAINING NO FUNCTIONAL GROUPS REACTIVE WITH COMPONENT (B), AS DEFINED HEREINBELOW, (2) FROM ABOUT 50% TO 2% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED COMONOMER CONTAINING AT LEAST ONE FUNCTIONAL GROUP REACTIVE WITH COMPONENT (B), AND (3) FROM ABOUT 0% TO 45% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED SOFTENING COMONOMER CONTAINING NO FUNCTIONAL GROUPS REACTIVE WITH COMPONENT (B), WHEREIN THE SUM OF THE AMOUNTS OF (1), (2) AND (3) IS 100%, AND HAVING AN ULTRAVIOLET LIGHT ABSORBER INCORPORATED IN SAID OVERLAY MEMBER, (B) A CROSS-LINKING AMOUNT OF AN AGENT SELECTED FROM THE GROUP CONSISTING OF A 3,4-EPOXY-CYCLOHEXYLMETHYL, 3,4-EPOXY-CYCLOHEXANECARBOXYLATE AND HEXAMETHOXYMETHYLAMINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |