Method for effecting heat seals of controlled detachability betw

Details Method for effecting heat seals of controlled detachability betw Method for effecting heat seals of controlled detachability betw

1981-03-23

1984-10-23

Childs, S. L.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156247, 156315, 156330, 1563313, 156344, 4273741, 427386, 4273881, 427410, 428416, 428418, 525108, 525110, C09J 502

Patent

active

044786670

ABSTRACT:
A seal of controlled detachability between a propylene polymer, such as polypropylene, heat sealed to an enamel coated surface comprised of an epoxy resin, an aminoplant resin and an adhesion promoting amount of a carboxylated polypropylene resin, is obtained by incorporating a butene polymer such as polybutene in the enamel coating composition prior to its application to a metal surface.

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patent: 3392045 (1968-07-01), Holub
patent: 3616047 (1971-10-01), Kehe
patent: 3972821 (1976-08-01), Weidenbenner
patent: 3990615 (1976-11-01), Kerwin et al.
patent: 4012270 (1977-03-01), Fitko
patent: 4034132 (1977-07-01), Manuel
patent: 4048355 (1977-09-01), Sakayori et al.
patent: 4169822 (1979-10-01), Kutch et al.
patent: 4177323 (1979-12-01), Obi et al.

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