Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1990-02-21
1991-04-30
Lieberman, Allan M.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428355, 428489, 428521, 428523, B32B 1100, B32B 2514
Patent
active
050117262
ABSTRACT:
An adhesive composition for roofing such as shingles is disclosed which is composed of a hard asphaltic bitumen fraction having a penetration number at 77.degree. F. of from 0 to 30 dmm and a softening point of from about 150.degree. to 220.degree. F. and an elastomeric composition composed of a thermoplastic elastomer and a plasticizer wherein the overall adhesive composition has a penetration number of from 30 to 100 dmm at 130.degree. F. and a softening point of 140.degree. to 230.degree. F. The inventive composition is self-sealing and exhibits excellent squash resistance, low temperature properties and resistance to blowoff. The composition can be used with shingles as well as other types of roofing coverings.
REFERENCES:
patent: 4385142 (1983-05-01), Bohm et al.
patent: 4588637 (1986-05-01), Chiu
patent: 4824880 (1989-04-01), Algrim et al.
Abstract of Japanese Patent 56-5853, Satayashi et al, 1/81.
Bettoli Steven C.
Bondoc Alfredo A.
Chich Adem
Grube Louis L.
Lalwani Steven S.
GAF Building Materials Corporation
Goldberg Jules E.
Lieberman Allan M.
Maue Marilyn J.
Ward Joshua J.
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