US4471094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primer composition
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1980-08-29
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Granted: 1984-09-11
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Expires: 2000-08-29
Abstract
Abstract A primer composition for use in the bonding of asphalts comprising the reaction product of an elastomer and a terpene resin. The primer composition of this invention can be used in the treatment of substrates to which asphalts are bonded to improve the bonding relationship between the substrate and the asphalt, such as in road-paving applications, roofing applications and the like.
Inventors
- 👤 William E. Uffner
- 👤 Robert N. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:14
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E01C7/185; C; C08; C08G; C08G81/00; C08G81/02; C09; C09D; C09D5/00; C09D5/002; E01C11/00; E01C11/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
A primer composition for use in improving the bonding relationship of asphalts to substrates, said composition consisting essentially of the reaction product of (1) 5 to 40% by weight of a liquid tacky depolymerized rubber and (2) 95 to 40% by weight of a terpene resin, wherein said liquid cacky depolymerized rubber is a diene rubber having an average molecular weight below about 110,000.
Claim 2
Dependent Claim
64 words
A primer composition for use in improving the bonding relationship of asphalts to substrates, said composition consisting essentially of the reaction product of (1) 5 to 40% by weight of a liquid tacky depolymerized rubber and (2) 95 to 40% by weight of a terpene resin, wherein said liquid cacky depolymerized rubber is a diene rubber having an average molecular weight below about 110,000.
Claim 3
Dependent Claim
22 words
A composition as defined in claim 1 wherein the terpene resin is a synthetic polyterpene derived from a C 5 hydrocarbon resin.
Claim 4
Dependent Claim
15 words
A composition as defined in claim 1 wherein the terpene resin is derived from alpha-pinene.
Claim 5
Dependent Claim
11 words
A composition as defined in claim 1 which includes a solvent.
Claim 6
Dependent Claim
15 words
A composition as defined in claim 1 wherein the composition also includes a non-depolymerized rubber.
Claim 7
Dependent Claim
21 words
A composition as defined in claim 1 wherein the composition is formed at a temperature within the range of 50°-300° F.
Claim 8
Dependent Claim
21 words
A composition defined in claim 5 which includes a non-depolymerized rubber in an amount ranging from 1 to 30% by weight.
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |