Bitumen adhesive and waterproofing membranes containing same

Details Bitumen adhesive and waterproofing membranes containing same Bitumen adhesive and waterproofing membranes containing same

1985-04-17

1986-07-15

Marquis, Melvyn I.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

524 62, 524 64, 524 68, 524 69, 428521, 428489, 428497, B32B 700

Patent

active

046006354

ABSTRACT:
Pressure sensitive bitumen-based adhesive compositions are provided which comprise bitumen, oil, an ionomeric elastomer, and gilsonite. The adhesives are particularly useful as self adherent waterproofing layers in roofing. The presence of gilsonite can result in substantial increases in the shear strength of these adhesives at the relatively high temperatures encountered in roofing applications.
Also provided are waterproofing membranes comprising the inventive adhesive compositions.

REFERENCES:
patent: 3801531 (1974-04-01), Berejka et al.
patent: 3836511 (1974-09-01), Clark et al.
patent: 3867247 (1975-02-01), Clark et al.
patent: 4235953 (1980-11-01), Kumins et al.
patent: 4370432 (1983-01-01), Agarwal et al.
patent: 4371640 (1983-02-01), Agarwal et al.
patent: 4371641 (1983-02-01), Boyer et al.
patent: 4376179 (1983-03-01), Agarwal et al.
patent: 4385141 (1983-05-01), Agarwal et al.
patent: 4387174 (1983-06-01), Lundberg et al.
patent: 4420524 (1983-12-01), Gorgati
patent: 4459157 (1984-07-01), Koons
patent: 4524156 (1985-06-01), Cogliano
"Gilsonite" in Kirk-Othmer: Encyclopedia of Chemical Technology, vol. 11, 3rd ed., 1980.

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