Moulding compositions of low double refraction

Details Moulding compositions of low double refraction Moulding compositions of low double refraction

1990-04-23

1992-09-01

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...

525 80, 525 83, 525222, C08L 3308, C08L 5104

Patent

active

051439735

ABSTRACT:
The invention relates to thermoplastic molding compositions of PVC and (ter)polymers which can optionally be grafted on to a resin and are suitable for the production of optical discs by virtue of their extremely low double refraction.

REFERENCES:
patent: 3557251 (1971-01-01), Tanaka et al.
patent: 4144286 (1979-03-01), Casper et al.
patent: 4201829 (1980-05-01), Mast et al.
patent: 4666980 (1987-05-01), Lindner et al.

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