Polyvinyl butyral pellicle compositions

Details Polyvinyl butyral pellicle compositions Polyvinyl butyral pellicle compositions

1991-05-01

1993-09-14

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524378, 524503, C08K 507, C08K 520, C08L 2904

Patent

active

052449521

ABSTRACT:
An improved pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from a specific polyvinyl butyral resin from a casting composition which is a mixture of the specific polyvinyl butyral resin and dimethylformamide.

REFERENCES:
patent: 2443998 (1948-06-01), White
patent: 4341683 (1982-07-01), Shelgrove

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