Selective gas-permeable films

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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55158, 55186, 525106, 525446, 525453, 525474, 525130, 525189, 525456, C08L 8306, C08L 8308

Patent

active

045658463

ABSTRACT:
A selective gas-permeable film comprising a crosslinked copolymer product of a bifunctional polyorganosiloxane and a mixture of a styrene polymer having an aromatic ring at the side chain thereof, a phenolic polymer having an aromatic ring at the main chain thereof or an addition polymer of a phenolic compound and a phenyl ether compound joined through methylene groups and a polymer having functional end hydroxyl groups. Alternatively, the copolymer product may be of the bifunctional polyorganosiloxane and the addition polymer alone.

REFERENCES:
patent: 3318971 (1967-05-01), Chloupek et al.
patent: 3642936 (1972-02-01), Hodge et al.
patent: 3678126 (1972-07-01), Saam et al.
patent: 3767737 (1973-10-01), Lundstrom
patent: 3975455 (1976-08-01), Falender et al.

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