US3424649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diene-monovinylarene block copolymerpolyolefin laminates
Assignee: Shell USA Inc
•
Filing: 1965-09-24
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Granted: 1969-01-28
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Expires: 1985-09-24
Abstract
No abstract record available.
Inventors
- 👤 David D Nyberg
- 👤 Willis R Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:45
CPC Classifications
C; C08; C08F; C08F297/00; C08F297/02; C08F297/04; B; B32; B32B; B32B27/00; B32B27/32; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0853; C08L23/10; C08L53/00; C08L53/02; C08L23/0869; Y; Y10; Y10S; Y10S525/00; Y10S525/94; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A COMPOSITE STRUCTURE WHICH COMPRISES, IN INTIMATE JOINED LAMINATION (A) A SUBSTRATE LAYER OF A NORMALLY SOLID POLYOLEFIN, AND (B) A TIGHTLY ADHERED SUPERFICAL LAYER OF A COMPOSITION COMPRISING: (1) 20-100 PARTS BY WEIGHT OF A THERMOPLASTIC POLYOLEFIN OF AT LEAST ONE OLEFIN HAVING 2-3 CARBON ATOMS PER MOLECULE AND HAVING A MELT INDEX AT 190*C. BETWEEN ABOUT 0.2 AND 0.4; AND (2) 100 PARTS BE WEIGHT OF AN ELASTOMERIC BLOCK COPOLYMER HAVING THE CONFIGURATION: POLY(MONOVINYLARENE)-POLY(CONJUGATED DIENE)POLY(MONOVINYLARENE) WHEREIN EACH POLY(MONOVINYLARENE) BLOCK HAS AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 8000 AND 45,000; AND THE POLY(CONJUGATED DIENE) BLOCK HAS AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 35,000 AND 150,000.
Claim 2
Dependent Claim
106 words
A COMPOSITE STRUCTURE WHICH COMPRISES, IN INTIMATE JOINED LAMINATION (A) A SUBSTRATE LAYER OF A NORMALLY SOLID POLYOLEFIN, AND (B) A TIGHTLY ADHERED SUPERFICAL LAYER OF A COMPOSITION COMPRISING: (1) 20-100 PARTS BY WEIGHT OF A THERMOPLASTIC POLYOLEFIN OF AT LEAST ONE OLEFIN HAVING 2-3 CARBON ATOMS PER MOLECULE AND HAVING A MELT INDEX AT 190*C. BETWEEN ABOUT 0.2 AND 0.4; AND (2) 100 PARTS BE WEIGHT OF AN ELASTOMERIC BLOCK COPOLYMER HAVING THE CONFIGURATION: POLY(MONOVINYLARENE)-POLY(CONJUGATED DIENE)POLY(MONOVINYLARENE) WHEREIN EACH POLY(MONOVINYLARENE) BLOCK HAS AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 8000 AND 45,000; AND THE POLY(CONJUGATED DIENE) BLOCK HAS AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 35,000 AND 150,000.
References Cited (Backward Citations)
US3239478A
Cited
US3242038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |