Title:
HARD COATING FILM
Document Type and Number:
Japanese Patent JPH07138531
Kind Code:
A
Abstract:
PURPOSE: To obtain a hard coating film having both a high surface hardness and a high internal flexibility.
CONSTITUTION: A hard coating film is obtd. by baking a mixture comprising a soln. obtd. by hydrolyzing a metal alkoxide of the formula: M(OR)4 (wherein M is a tetravalent metal; and R is alkyl) with water in a molar ratio of water to the alkoxide of 0.5-1.5 and a soln. obtd. by hydrolyzing a metal alkoxide of the formula: [R'-(CH2)n]-Si-(OR)4-m (wherein R is alkyl; R' is alkyl or a polymerizable group; m is 1 or 2; and n≥1) with water in a molar ratio of water to the alkoxide of 1.5-6.0.
Inventors:
YOKOISHI SHOJI
Application Number:
JP29070193A
Publication Date:
May 30, 1995
Filing Date:
November 19, 1993
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
C04B35/64; C09D183/00; C09D183/02; C09D185/00; (IPC1-7): C09D185/00; C04B35/64; C09D183/02
Attorney, Agent or Firm:
Shoichi Ui (3 others)