High slip polyester films containing siloxane units

Details High slip polyester films containing siloxane units High slip polyester films containing siloxane units

1983-03-07

1985-01-29

Briggs, Sr., Wilbert J.

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

Synthetic resins

From silicon reactant having at least one...

525446, 525474, 528 27, 528 29, 528272, C08G 6346, C08G 7746

Patent

active

044967047

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 improved nonsticking properties.

REFERENCES:
patent: 3701815 (1972-10-01), Matzner et al.
patent: 3749757 (1973-07-01), Marzocchi
patent: 4348510 (1982-09-01), Keck et al.

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