Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1994-02-28
1995-07-25
Clark, W. Robinson
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 56, 525227, C08L 2902, C08L 2904
Patent
active
054362938
ABSTRACT:
Compositions based on blends of certain specified poly(vinyl alcohol) copolymers and other poly(vinyl alcohol) polymers are described which are useful as sizes, and have improved ability to be desized from fabrics compared with the other poly(vinyl alcohol) polymers alone. The specific poly(vinyl alcohol) copolymers useful in the blends with other poly(vinyl alcohol) polymers are copolymers having a high level of acrylic ester comonomer. The blend sizes are useful in producing woven materials since they are excellent sizes, and are uniquely adaptable to caustic desizing.
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Polyvinyl Alcohol Properties and Applications; Chapter 11, pp. 365-368.
U.S. Ser. No. 08/203,136 filed on Feb. 28, 1994 by Hayes, et al.
Hayes Richard A.
Robinson George D.
Clark W. Robinson
E. I. Du Pont de Nemours and Company
Fowell Peter A.
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