US4824880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt adhesives
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1987-05-14
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Granted: 1989-04-25
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Expires: 2007-05-14
Abstract
Abstract An adhesive is provided for adhering roofing shingles wherein the adhesive is a blend of asphalt, an elastomer, a tackifying resin and a petroleum oil.
Inventors
- 👤 Donald J. Algrim
- 👤 William E. Uffner
- 👤 Glenn D. Lamb
- 👤 Stephen J. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/14; E04D5/141; E04D5/142; E04D1/00; E04D1/26; E04D1/29; E04D5/148; E04D2001/005; Y; Y10; Y10T; Y10T428/00; Y10T428/19
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
An adhesive composition, for retaining adjacent portions of asphalt roofing sheets against windlift at temperatures of about 50° F. and greater, comprising a blend of asphalt, an elastomer containing about 80% triblock styrene-butadiene-styrene copolymer and about 20% diblock styrene-butadiene copolymer, a tackifying resin and a petroleum oil, wherein the blend contains about 25-80% asphalt, a 3-18% elastomer, 5-25% tackifying resin and 10-50% petroleum oil; wherein the asphalt is characterized by a kinematic viscosity in the range of from about 500 poise±100 to about 250±50 poise at 140° F. (60° C.), a minimum viscosity of from about 110 cs (centistokes) to about 80 centistokes at 275° F. (135° C.), a penetration (ASTM D5 73) of from about 120 to about 300 dmm (decimillimeters) at 77° F. (25° C.), and a ring and ball softening point from about 90° F. to about 130° F.; and wherein the petroleum oil is a resinous by-product of a lubricating oil tower used in the crude oil refining process.
Claim 2
Dependent Claim
163 words
An adhesive composition, for retaining adjacent portions of asphalt roofing sheets against windlift at temperatures of about 50° F. and greater, comprising a blend of asphalt, an elastomer containing about 80% triblock styrene-butadiene-styrene copolymer and about 20% diblock styrene-butadiene copolymer, a tackifying resin and a petroleum oil, wherein the blend contains about 25-80% asphalt, a 3-18% elastomer, 5-25% tackifying resin and 10-50% petroleum oil; wherein the asphalt is characterized by a kinematic viscosity in the range of from about 500 poise±100 to about 250±50 poise at 140° F. (60° C.), a minimum viscosity of from about 110 cs (centistokes) to about 80 centistokes at 275° F. (135° C.), a penetration (ASTM D5 73) of from about 120 to about 300 dmm (decimillimeters) at 77° F. (25° C.), and a ring and ball softening point from about 90° F. to about 130° F.; and wherein the petroleum oil is a resinous by-product of a lubricating oil tower used in the crude oil refining process.
Claim 3
Dependent Claim
27 words
An adhesive composition as in claim 1 wherein the blend contains, in approximate weight percent, about 42-48% asphalt, 10-11% elastomer, 17-19% tackifying resin and 22-28% petroleum oil.
Claim 4
Dependent Claim
26 words
An adhesive composition as in claim 1 wherein said blend contains, in approximate weight percent, 45.5% asphalt, 10.4% elastomer, 18.3% tackifying resin and 25.8% petroleum oil.
Claim 5
Dependent Claim
24 words
An adhesive composition as in claim 1 or 3 wherein said diblock copolymer of said elastomer contains about 31% styrene and about 609% butadiene.
Claim 6
Dependent Claim
23 words
An adhesive composition as in claim 1 wherein the blend contains about 35-60% asphalt, 5-12% elastomer, 8-20% tackifying resin and 15-35% petroleum oil.
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) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |