Compositions: coating or plastic – Coating or plastic compositions – Heavy metal compound containing
Patent
1998-01-23
2000-08-29
Brunsman, David
Compositions: coating or plastic
Coating or plastic compositions
Heavy metal compound containing
427384, 4274193, 4274195, 428428, 428432, 428697, C09D 100, C03G 1725, C01B 3314, C01G 23047, B01J 1300
Patent
active
061102695
ABSTRACT:
The invention relates to a coating liquid for forming a hydrophilic film. This coating liquid comprises a first sol which is a titania sol; and a second sol which is at least one of a silica sol and an alumina sol. This titania sol is prepared by a method comprising the sequential steps of (a) mixing a first solution containing a titanium alkoxide with a diol represented by at least one of the following general formulas (1) and (2), thereby to prepare a second solution containing a titanium complex formed by a reaction of the titanium alkoxide with the diol; and (b) hydrolyzing the titanium complex in the second solution, thereby to prepare the titania sol. The coating liquid is stable or sufficiently long in pot life, and the hydrophilic film has a long time duration in hydrophilicity and a superior abrasion resistance. ##STR1## wherein R.sub.1 is H or C.sub.p H.sub.2p+1 where p is from 1 to 5, R.sub.2 is C.sub.q H.sub.2q+1 where q is from 1 to 5, R.sub.3 is C.sub.r H.sub.2r where r is from 1 to 3, R.sub.4 is H or C.sub.x H.sub.2x+1 where x is from 1 to 5, and R.sub.5 is H or C.sub.y H.sub.2y+1 where y is from 1 to 5.
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Kai Yasuaki
Nishide Toshikazu
Seino Takashi
Sugawara Satoko
Brunsman David
Nissan Motor Co,. Ltd.
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