US5013779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized polyvinyl butyral and interlayer thereof
Assignee: Solutia Inc
•
Filing: 1990-07-09
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Granted: 1991-05-07
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Expires: 2010-07-09
Abstract
Abstract A composition of matter and an interlayer formed of such composition for a laminated glazing comprising polyvinyl butyral resin plasticized with a mixed adipate or a mixture of pure and mixed adipates made from: (a) at least one C4 to C9, preferably C6, alkyl alcohol and (b) at least one cyclo (C4 to C10), preferably C6, alcohol wherein the proportions of (a) and (b) in parts by weight per 100 parts (a) and (b) are: (a) 10-90, preferably 30-80 and (b) 90-10, preferably 70-20.
Inventors
- 👤 Robert H. Fariss
- 👤 Roland J. Tetreault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:12
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10605; B32B17/10761; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A method of improving the color stability to UV light of a polyvinyl butyral interlayer plasticized with an adipate composition which comprises using in said adipate composition, a color-stabilizing effective amount of a pure or mixed adipate formed using a saturated cyclo (C 4 to C 10 ) alcohol.
Claim 2
Independent Claim
49 words
A method of improving the color stability to UV light of a polyvinyl butyral interlayer plasticized with an adipate composition which comprises using in said adipate composition, a color-stabilizing effective amount of a pure or mixed adipate formed using a saturated cyclo (C 4 to C 10 ) alcohol.
Claim 3
Independent Claim
42 words
A method of improving the edge stability of a polyvinyl butyral interlayer plasticized with an alkyl adipate which comprises: using a pure or mixed saturated ring adipate formed using a cyclo (C 4 to C 10 ) alcohol with such alkyl adipate.
Claim 4
Independent Claim
42 words
A method of improving the edge stability of a polyvinyl butyral interlayer plasticized with an alkyl adipate which comprises: using a pure or mixed saturated ring adipate formed using a cyclo (C 4 to C 10 ) alcohol with such alkyl adipate.
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Cited
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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) | 1994-05-06 | 1994-11-05 | 1995-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-06 | 1998-11-05 | 1999-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-06 | 2002-11-05 | 2003-05-07 | $7700.00 | Window Closed / Lapsed |