Method for preparation of polyester films with good release and

Details Method for preparation of polyester films with good release and Method for preparation of polyester films with good release and

1992-07-28

1994-04-12

Woo, Jay H.

Stock material or miscellaneous articles

Composite

Of silicon containing

264130, 264134, 2642107, 2642902, 26433119, 428483, B32B 904, B29C 5512

Patent

active

053024591

ABSTRACT:
A method for preparation of a biaxially stretched polyester film with good slip and release properties comprising coating an acrylic resin-based aqueous resin compound, which is derived from adding an amino-modified silicone compound having the structural formula (1), a waxy additive and inert inorganic particles to an acrylic resin, on at least one surface of a mono-axially stretched polyester film, drying the polyester film coated with the aqueous resin compound, mono-axially stretching the dried polyester film in a direction perpendicular to that of the previous mono-axial stretching and heat-treating the stretched polyester film: ##STR1## wherein R' is a hydroxyl group, a methyl or an ethyl; R" is a hydrogen carbide which has 0 to 10 carbon atoms and to which NH or NH.sub.2 is bonded; m is an integer in the range of 5 to 1,000; n is an integer in the range of 100 to 20,000; and n/(m+n)=0.5.

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patent: 4970559 (1990-11-01), Miyabayashi
patent: 5095001 (1992-03-01), Miles et al.
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