Polyester base drafting film with nitrocellulose and polymethylm

Details Polyester base drafting film with nitrocellulose and polymethylm Polyester base drafting film with nitrocellulose and polymethylm

1982-01-15

1982-12-28

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430534, 430535, 428481, 428483, G03C 178

Patent

active

043662390

ABSTRACT:
A drafting film comprising a hydrophobic support and a matte layer formed thereon, said matte layer comprising silicon dioxide as a matting agent and a mixture of polymethyl methacrylate or a copolymer thereof and nitrocellulose. The drafting film show excellent adaptability for writing or drawing and revising or erasing.
A wash-off type photographic film is also provided by forming a wash-off silver halide photosensitive emulsion layer on the drafting film.

REFERENCES:
patent: 3161519 (1964-12-01), Alsup
patent: 3353958 (1967-11-01), Moede
patent: 3516832 (1970-06-01), Earhart et al.
patent: 4100329 (1978-07-01), Neithardt

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