Patent US2498652A successfully refreshed from Google Patents.
US2498652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminar structure
Assignee: Uniroyal Inc
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Filing: 1946-10-19
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Granted: 1950-02-28
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Expires: 1966-10-19
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Daly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:01
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10; C08L25/12; C08L9/00; C08L9/02; C08L9/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31924; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
258 words
A SHATTERPROOF SCAR-RESISTANT LAMINAR STRUCTURE COMPRISING A NORMALLY HARD TOUGH THERMOPLASTIC BASIC SHEET COMPOSED MAINLY OF A COMPOSITE THERMOPLASTIC HOMOGENEOUS MIXTURE OF AN ELASTIC RUBBERY COPOLYMER SELECTED FROM THE GROUP CONSISTING OF (A) RUBBERY COPOLYMERS OF BUTADIENE-1,3 AND STYRENE AND (B) RUBBERY COPOLYMERS OF BUTADIENE-1,3 AND ACRYLONITRILE AND A HARD NORMALLY INELASTIC RESINOUS THERMOPLASTIC COPOLYMER SELECTED FROM THE GROUP CONSISTING OF (C) RESINOUS COPOLYMERS OF MONOMERS CONSISTING ESSENTIALLY OF STYRENE AND BUTADIENE-1,3 IN PROPORTIONS RANGING FROM 80 TO 97 PERCENT BY WEIGHT OF STYRENE AND CORRESPONDINGLY BY FROM 20 TO 3 PERCENT OF WEIGHT OF BUTADIENE-1,3 AND (D) RESINOUS COPOLYMERS OF MONOMERS CONSISTING ESSENTIALLY OF STYRENE AND ACRYLONITRILE IN PROPORTIONS RANGING FROM 50 TO 85 PERCENT BY WEIGHT OF STYRENE AND CORRESPONDINGLY FROM 50 TO 15 PERCENT BY WEIGHT OF ACRYLONITRILE, A RESINOUS COPOLYMER (C) BEING USED WHEN A RUBBER COPOLYMER (A) IS USED AND A ESINOUS COPOLYMER (D) BEING USED WHEN A RUBBERY COPOLYMER (B) IS USED, SAID RESINOUS COPOLYMER CONSTITUTING FROM 60 TO 90 PERCENT BY WEIGHT OF THE SUM OF THE WEIGHTS OF SAID RUBBERY COPOLYMER AND SAID RESINOUS COPOLYMER, SAID BASE SHEET HAVING BOND INTEGRALLY TO ONE FACE THEREOF BY COALESCENCE UNDER THE ACTION OF HEAT AND PRESSURE A SHEET COMPOSED MAINLY OF A COMPOSITE THERMOPLASTIC HOMOGENEOUS MIXTURE OF THE SAME RUBBERY AND RESINOUS COPOLYMERS THAT ARE USED IN SAID BASE SHEET BUT IN WHICH THE RUBBERY COPOLYMER IS PRESENT IN PROPORTION RANGING FROM 50 TO 75 PERCENT BY WEIGHT OF THE SUM OF THE WEIGHTS OF SAID RUBBERY COPOLYMER AND SAID RESINOUS COPOLYMER.
Claim 2
Dependent Claim
258 words
A SHATTERPROOF SCAR-RESISTANT LAMINAR STRUCTURE COMPRISING A NORMALLY HARD TOUGH THERMOPLASTIC BASIC SHEET COMPOSED MAINLY OF A COMPOSITE THERMOPLASTIC HOMOGENEOUS MIXTURE OF AN ELASTIC RUBBERY COPOLYMER SELECTED FROM THE GROUP CONSISTING OF (A) RUBBERY COPOLYMERS OF BUTADIENE-1,3 AND STYRENE AND (B) RUBBERY COPOLYMERS OF BUTADIENE-1,3 AND ACRYLONITRILE AND A HARD NORMALLY INELASTIC RESINOUS THERMOPLASTIC COPOLYMER SELECTED FROM THE GROUP CONSISTING OF (C) RESINOUS COPOLYMERS OF MONOMERS CONSISTING ESSENTIALLY OF STYRENE AND BUTADIENE-1,3 IN PROPORTIONS RANGING FROM 80 TO 97 PERCENT BY WEIGHT OF STYRENE AND CORRESPONDINGLY BY FROM 20 TO 3 PERCENT OF WEIGHT OF BUTADIENE-1,3 AND (D) RESINOUS COPOLYMERS OF MONOMERS CONSISTING ESSENTIALLY OF STYRENE AND ACRYLONITRILE IN PROPORTIONS RANGING FROM 50 TO 85 PERCENT BY WEIGHT OF STYRENE AND CORRESPONDINGLY FROM 50 TO 15 PERCENT BY WEIGHT OF ACRYLONITRILE, A RESINOUS COPOLYMER (C) BEING USED WHEN A RUBBER COPOLYMER (A) IS USED AND A ESINOUS COPOLYMER (D) BEING USED WHEN A RUBBERY COPOLYMER (B) IS USED, SAID RESINOUS COPOLYMER CONSTITUTING FROM 60 TO 90 PERCENT BY WEIGHT OF THE SUM OF THE WEIGHTS OF SAID RUBBERY COPOLYMER AND SAID RESINOUS COPOLYMER, SAID BASE SHEET HAVING BOND INTEGRALLY TO ONE FACE THEREOF BY COALESCENCE UNDER THE ACTION OF HEAT AND PRESSURE A SHEET COMPOSED MAINLY OF A COMPOSITE THERMOPLASTIC HOMOGENEOUS MIXTURE OF THE SAME RUBBERY AND RESINOUS COPOLYMERS THAT ARE USED IN SAID BASE SHEET BUT IN WHICH THE RUBBERY COPOLYMER IS PRESENT IN PROPORTION RANGING FROM 50 TO 75 PERCENT BY WEIGHT OF THE SUM OF THE WEIGHTS OF SAID RUBBERY COPOLYMER AND SAID RESINOUS COPOLYMER.
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) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |