Linear block copolyesters having improved slip characteristics

Details Linear block copolyesters having improved slip characteristics Linear block copolyesters having improved slip characteristics

1981-06-12

1982-09-07

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 27, 528 19, 528 17, 525446, 525474, 26433121, C08G 7704

Patent

active

043485103

ABSTRACT:
This invention provides for novel linear thermoplastic block copolyesters derived from dicarboxylic acids or dialkyl esters thereof, alkylene glycols and dihydroxy terminated polydimethylsiloxane block copolymers. Films, tapes, sheeting and other extruded and molded articles prepared from said copolyesters exhibit improved clarity and when tested in accordance with ASTM test method D-1894 exhibit improved nonsticking properties.

REFERENCES:
patent: 2584342 (1952-02-01), Goodwin, Jr. et al.
patent: 3701815 (1972-10-01), Matzner et al.
patent: 3749757 (1973-07-01), Marzocchi
patent: 3935154 (1976-01-01), Cawley

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