Epoxy adhesives for poly(butylene terephthalate)

Details Epoxy adhesives for poly(butylene terephthalate) Epoxy adhesives for poly(butylene terephthalate)

1982-08-26

1984-10-30

Nielsen, Earl A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523456, 525337, 525340, 5253591, 5253592, 5253544, 525506, 525523, 528 88, 528 89, 528 91, 528 92, 528110, 528410, 528408, C08G 5968, C08G 5962

Patent

active

044800592

ABSTRACT:
Improved thermally-curable adhesive compositions for bonding articles of poly(butylene terephthalate) together or to other articles are disclosed. The adhesive compositions comprise at least one epoxidic prepolymer having two or more epoxy groups, an aromatic halonium complex salt thermal initiator dissolved in a compatibilizing non-epoxidic organic liquid, a copper carboxylate salt cocatalyst, a polyhydric alcohol, and optionally, silica filler. The adhesive compositions when heated, cure to form an adhesive bond between articles of poly(butylene terephthalate) which exhibits a vastly improved bond strength over presently available epoxy adhesive materials.

REFERENCES:
patent: 4173551 (1979-11-01), Crivello
patent: 4192924 (1980-03-01), Crivello
patent: 4225691 (1980-09-01), Crivello
patent: 4275190 (1981-06-01), Dudgeon
patent: 4283312 (1981-08-01), Crivello
patent: 4342673 (1982-08-01), Wolfrey

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