Organic-inorganic composite particles and production process the

Details Organic-inorganic composite particles and production process the Organic-inorganic composite particles and production process the

1994-11-15

1996-04-02

Thomas, Alexander S.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428 1, 359 81, 528 10, 528 32, 528 41, 528481, 525100, 525474, G02F 11339, C08G 7702, C08G 7742

Patent

active

055039324

ABSTRACT:
Organic-inorganic composite particles which include a (meth)acrylic resin framework and a polysiloxane framework having in its molecule an organosilicon containing a silicon atom directly and chemically combined with at least one carbon atom of the (meth)acrylic resin framework, and also contain 25 wt % or more of SiO.sub.2 which constitutes the polysiloxane framework and have a mean particle diameter of .gtoreq.0.5 .mu.m. The particles have the mechanical resilience necessary to maintain a constant gap distance between a pair of members to be arranged with the correct gap distance between them, and the hardness and fracture strength necessary to maintain the gap constant with smaller numbers; and also do not readily cause physical damage to the members. The composite particles can be employed as spacers 8 for a liquid crystal display as they stand or, with an adhesive layer formed on the surface. The composite particles can also have a conductive layer formed on the surface, and be employed as conductive particles.

REFERENCES:
patent: 4166078 (1979-08-01), Getson
patent: 4437731 (1984-03-01), Sudo et al.
patent: 5153068 (1992-10-01), Kohara et al.
patent: 5231527 (1993-07-01), Takanashi et al.
"The Chemical Handbook-Applied Chemistry" edited by the Japanese Chemical Soc., published by maruzen KK and published in Dec. 1986, pp. 1399-1427.
"The Nippon Kayaku Dye Handbook (2nd edition)" published by Nippon Kayaku KK and published in Dec. 1973, pp. 634-687.

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