Polymeric release agents

Details Polymeric release agents Polymeric release agents

1976-01-15

1977-06-14

Robinson, Ellis

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260 15, 260 49, 260271, 428 40, 428343, 428461, 428480, 428509, 428510, 428500, 428518, 428523, C09J 702

Patent

active

040298434

ABSTRACT:
Improved high temperature and high humidity resistant release agents for pressure sensitive tapes are provided. Reaction products of (1) a polyanhydride resin and (2) water or an amine or an alcohol are applied as a thin coating to the tape to permit easy unwinding of the tape, even though it may have been stored at elevated temperature or humidity.

REFERENCES:
patent: 2876894 (1959-03-01), Dahlquist
patent: 3052566 (1969-09-01), Smith
patent: 3240330 (1966-03-01), Christmas
patent: 3475196 (1969-10-01), Bartell
patent: 3928690 (1976-04-01), Settineri

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