Patent US2979423A successfully refreshed from Google Patents.
US2979423A
Expired / Lapsed
US
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Isocyanate modified vinyl chloride copolymer film backed adhesive tape
Assignee: Johnson and Johnson
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Filing: 1957-09-25
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Granted: 1961-04-11
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:37
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/24; C09J7/245; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T442/00; Y10T442/20; Y10T442/2738; Y10T442/2746
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A NOVEL TAPE COMPRISING A CHLORINATED HYDROCARBON RESISTANT, FLEXIBLE BACKING FILM FORMED FROM A COMPOSITION COMPRISING (1) A VINYL CHLORIDE CO-POLYMER CONTAINING AN ISO-CYANATE REACTIVE GROUP IN AN AMOUNT FROM ABOUT 10% TO ABOUT 70% BY WEIGHT OF SAID COMPOSITION, (2) A COMPATIBLE PLASTICIZER CONTAINING AN ISO-CYANATE REACTIVE GROUP IN AN AMOUNT FROM ABOUT 35% TO ABOUT 90% BY WEIGHT OF SAID COMPOSITION, (3) AND A POLYISOCYANATE IN AN AMOUNT FROM ABOUT 3% TO ABOUT 15% BY WEIGHT OF SAID COMPOSITION TO EFFECT A CHEMICAL LINKAGE BETWEEN SAID VINYL CHLORIDE COPOLYMER AND SAID PLASTICIZER, (4) AND A COATING OF A THERMOPLASTIC ADHESIVE ON AT LEAST ONE MAJOR SURFACE OF SAID BACKING FILM.
Claim 2
Dependent Claim
112 words
A NOVEL TAPE COMPRISING A CHLORINATED HYDROCARBON RESISTANT, FLEXIBLE BACKING FILM FORMED FROM A COMPOSITION COMPRISING (1) A VINYL CHLORIDE CO-POLYMER CONTAINING AN ISO-CYANATE REACTIVE GROUP IN AN AMOUNT FROM ABOUT 10% TO ABOUT 70% BY WEIGHT OF SAID COMPOSITION, (2) A COMPATIBLE PLASTICIZER CONTAINING AN ISO-CYANATE REACTIVE GROUP IN AN AMOUNT FROM ABOUT 35% TO ABOUT 90% BY WEIGHT OF SAID COMPOSITION, (3) AND A POLYISOCYANATE IN AN AMOUNT FROM ABOUT 3% TO ABOUT 15% BY WEIGHT OF SAID COMPOSITION TO EFFECT A CHEMICAL LINKAGE BETWEEN SAID VINYL CHLORIDE COPOLYMER AND SAID PLASTICIZER, (4) AND A COATING OF A THERMOPLASTIC ADHESIVE ON AT LEAST ONE MAJOR SURFACE OF SAID BACKING FILM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |