Molding compositions of low double refraction

Details Molding compositions of low double refraction Molding compositions of low double refraction

1990-05-17

1992-09-15

Ziegler, Jacob

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428518, 428913, 430945, 525 83, 525 85, B32B 302

Patent

active

051477009

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.

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