Adhesives and devices coated therewith

Details Adhesives and devices coated therewith Adhesives and devices coated therewith

1980-07-31

1985-03-26

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428418, 174DIG8, 138143, 138110, F16L 1100

Patent

active

045073406

ABSTRACT:
Novel curable adhesives are solid, substantially free of cross-linking and substantially tack-free at 25.degree. C.; remain substantially uncured when maintained for extended periods at 80.degree. C.; have an initial viscosity of 10.sup.3 to 10.sup.4 poise at 150.degree. C. and cure relatively slowly at 150.degree. C.; and cure rapidly at 200.degree. C. The adhesives preferably contain at least one epoxy resin, particularly an epoxy resin having a softening point of at least 50.degree. C. and an epoxy equivalent weight of at least 200 in combination with an epoxy resin which is liquid at 25.degree. C. or an elastomer or other compatible high molecular weight polymer. The adhesive preferably also contains a high temperature curing agent and preferably also a filler, which may be particulate or fibrous. The novel adhesives are particularly useful in combination with heat-recoverable devices, e.g. devices comprising components made of heat-recoverable metal.

REFERENCES:
patent: 2847395 (1958-05-01), Wear
patent: 3382121 (1968-05-01), Sherlock
patent: 3390704 (1968-07-01), Woodell
patent: 3496250 (1970-02-01), Czerwinski
patent: 3655815 (1972-04-01), McKown
patent: 3707583 (1973-01-01), McKown
patent: 3894113 (1975-07-01), Pagel
patent: 4035534 (1977-07-01), Nyberg
patent: 4077927 (1978-03-01), McPherson
patent: 4130546 (1978-12-01), Goto et al.
patent: 4181775 (1980-01-01), Corke
patent: 4197880 (1980-04-01), Cordia
patent: 4206786 (1980-06-01), Wetmore
patent: 4237609 (1980-12-01), Clabburn et al.
patent: 4295494 (1981-10-01), McGowan et al.
Holmes patent application Ser. No. 06/150,840, filed 5/19/80.

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