Method and composition for improved melt processability of chlor

Details Method and composition for improved melt processability of chlor Method and composition for improved melt processability of chlor

1986-01-22

1989-07-11

Ziegler, Jacob

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525239, C08L 3306

Patent

active

048473316

ABSTRACT:
A composition of matter comprising a blend of CPVC having a chlorine content of between about 60% and 66% by weight and a polymethylmethacrylate content of between about 0% and 80% by weight of the blend. The composition of matter displays substantially single, homogeneous phase behavior with the CPVC and polymethylmethacrylate being substantially or completely miscible. Blending of CPVC and polymethylmethacrylate provides a reulting blended polymeric material having enhanced temperature and durability properties. Melt processability of CPVC polymeric material may be enhanced by the inclusion of polymethylmethacrylate to form the blends.

REFERENCES:
patent: 4584349 (1986-04-01), Lehr
J. R. Fried, et al, "Modeling of Tensile Properties of Polymer Blends: PPO/Poly(Styrene-co-p-chlorostyrene)", 50 J. Appl. Phys. p. 6052 (1979).
P. R. Couchman "Compositional Variation of Glass-Transition Temperatures", 11 Macromolecules, p. 1156 (1978).
L. P. McMaster, "Aspects of Polymer-Polymer Thermodynamics", 6 Macromolecules, p. 760 (1973).
L. M. Robeson, "Applications of Polymer Blends: Emphasis on Recent Advances," 24 Polymer Eng. & Science, p. 587.
E. A. Joseph, et al, "Mechanical Properties of Miscible Polycarbonate-Copolyester Blends," 23 Polymer, p. 112 (1982).

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