Phenolic resin adhesion promoters and adhesive compositions, and

Details Phenolic resin adhesion promoters and adhesive compositions, and Phenolic resin adhesion promoters and adhesive compositions, and

1990-09-21

1992-11-10

Gallagher, John J.

Stock material or miscellaneous articles

Composite

Of metal

156315, 156333, 156335, 525135, 528155, B32B 1508, C09J 504

Patent

active

051621568

ABSTRACT:
An adhesion promoting composition for enhancing adhesion between an elastomeric substrate and a metal surface which, when applied at least in substantial contact with the metal surface, produces an elastomer-metal adhesive bond that withstands high temperature fluid and corrosive material environments and that can be applied without extensive pretreatment of the metal surface. The adhesion promoting composition comprises a phenolic resin derived from a first phenolic component, a second phenolic component, and a formaldehyde source, wherein the first phenolic component is a monohydroxy aromatic compound, a dihydroxy aromatic compound or a combination thereof, and the second phenolic component is a trihydroxy aromatic compound. A two-part adhesive composition containing a primer component and an overcoat component is also disclosed. The primer component contains the adhesion promoting composition and a first halogenated polyolefin while the overcoat component contains a second halogenated polyolefin and a nitroso compound.

REFERENCES:
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patent: 3704200 (1972-11-01), Brown
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patent: 4195140 (1980-03-01), Sexsmith et al.
patent: 4383005 (1983-05-01), Weil et al.
patent: 4724249 (1988-02-01), Roberts
patent: 5023311 (1991-06-01), Kubota

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