Epoxy resin, urethane-modified epoxy resin and carboxylated poly

Details Epoxy resin, urethane-modified epoxy resin and carboxylated poly Epoxy resin, urethane-modified epoxy resin and carboxylated poly

1991-11-20

1993-03-16

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525438, C08L 6302, C08L 902

Patent

active

051945029

ABSTRACT:
A one-pack epoxy structural adhesive for automobile which comprises 100 parts by weight of a mixture of a bisphenol epoxy resin and either one or both of an urethane-modified epoxy resin and an acrylonitrile/butadiene-modified epoxy resin as an epoxy resin component, 10 to 300 parts by weight of a polyester resin having carboxyl group at its termini, and 0.1 to 30 parts by weight of a latent curing agent. The adhesive of the present invention can be used as a structural adhesive for the weld bonding method in the structural parts of automobile wherein the adhesive shows an excellent shower resistance and the overflow of the adhesive can easily be wiped off. The adhesive of the present invention can easily be bead-applied at a temperature of around 40.degree. C., and hence, is suited for use in the assembly or bonding of car body.

REFERENCES:
patent: 4804581 (1989-02-01), Geary et al.
patent: 4908273 (1990-03-01), Urech et al.
patent: 4962162 (1990-10-01), Kosuda et al.
patent: 5008335 (1991-04-01), Pettit
patent: 5030698 (1991-07-01), Mulhaupt et al.
patent: 5096980 (1992-03-01), Yamazaki et al.

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