Infrared absorbing film improved in transparency

Details Infrared absorbing film improved in transparency Infrared absorbing film improved in transparency

1991-09-23

1993-10-26

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

241 21, 428220, 428331, 428334, 428516, 428518, 428520, 428522, 428523, A01G 920

Patent

active

052564738

ABSTRACT:
Disclosed is an infrared absorbing film comprising a synthetic resin and silicon oxide, wherein the silicon oxide is used in an amount of about 2 to about 25% by weight based on the synthetic resin, and wherein the silicon oxide is produced by underwater grinding, has an average particle size of not more than 4 .mu.m, is substantially free of particles exceeding 20 .mu.m in average particle size, and has a specific surface area of not more than 20 m.sup.2 /g.
The film may further comprise a transparent resin layer formed over at least one surface thereof.

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Database WPIL, Derwent Publicataions Ltd., London, GB; AN 86-065629 & JP-A-61 017 415, Jan. 1986.

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