Glass-run for window glass of motor car

Abstract

A glass-run for a window glass moving to open and close of a motor car, which has excellent non-adhesion property is disclosed, said glass-run comprising a substrate of a high molecular material having coated on the surface thereof a film formed by hardening a specific paint composition comprising components (A), (B), (C), (D), (E) and (F) described in the specification.

What is claimed is: 
     
       1. A glass-run for a window glass moving to open and close of a motor car, which comprises a substrate having a film coated on at least a part of the surface of the substrate to be contacted with the window glass, said film being formed by hardening a paint composition comprising: (A) 100 parts by weight of an urethane polymer obtained by the reaction of a polyester polyol having .Iadd.terminal .Iaddend.hydroxy groups .[.in it's terminal.]. and a molecular weight of 1,000 to 3,000, synthesized from a saturated diol having 2 to 6 carbon atoms and an organic dicarboxylic acid having 4 to 6 carbon atoms, with an organic diisocyanate in the molar ratio of NCO/OH of from 0.6/1 to 0.95/1;   (B) 10 to 60 parts by weight of a castor oil polyol;   (C) 1 to 100 parts by weight of an urethane prepolymer having .Iadd.terminal .Iaddend.isocyanate groups .[.in it's terminal.]. obtained by the reaction of a low molecular polyol and an organic diisocyanate;   (D) 2 to 100 parts by weight of a fluoro carbon resin;   (E) 5 to 100 parts by weight of a silicone oil; and   (F) 0.5 to .[.3.]. .Iadd.8 .Iaddend.parts by weight of at least one member of silica, clay, and calcium carbonate.   
     
     
       2. A glass-run as claimed in claim 1, wherein said component (F) is silica. 
     
     
       3. A glass-run as claimed in claim 1, wherein said component (F) is clay. 
     
     
       4. A glass-run as claimed in claim 1, wherein said component (F) is calcium carbonate. .Iadd. 
     
     
       5.  A glass-run for a window glass of a motor car comprising: a substrate having a film coated on at least a part of the surface of the substrate to be contacted with the window glass, said film being formed by hardening a paint composition comprising:   (A) 100 parts by weight of an urethane polymer obtained by the reaction of a polyester polyol having terminal hydroxy groups and a molecular weight of 1000 to 3000, synthesized from a saturated diol having 2 to 6 carbon atoms and an organic dicarboxylic acid having 4 to 6 carbon atoms, with an organic diisocyanate in the mole ratio of NCO/OH of from 0.6/1 to 0.95/1;   (B) 10 to 60 parts by weight of a castor oil polyol;   (C) 1 to 100 parts by weight of a urethane prepolymer having terminal isocyanate groups obtained by reacting a low molecular weight polyol and an organic diisocyanate;   (D) 2 to 100 parts by weight of a fluoro carbon resin;   (E) 5 to 100 parts by weight of a silicone oil; and   (F) 2 to 8 parts by weight of at least one member of silica, clay, and calcium carbonate. .Iaddend. .Iadd.6. The glass-run for a window glass according to claim 1, wherein in said component (A) said saturated diol is selected from the group consisting of propylene glycol, butanediol, pentanediol and hexanediol and wherein said organic dicarboxylic acid is adipic acid or succinic acid. .Iaddend. .Iadd.7. The glass-run for a window glass according to claim 5, wherein in said component (A) said organic diisocyanate is 4,4'diphenyl methane diisocyante or 4,4'diphenyl   
     
     
        ether diisocyanate. .Iaddend. .Iadd.8.  The glass-run for a window glass according to claim 5, wherein in said component (C) said low molecular weight polyol is glycerine or trimethylol propane; and said organic diisocyanate is 4,4'diphenyl methane diisocyanate or 4,4'diphenyl ether diisocyanate. .Iaddend. .Iadd.9. The glass-run for a window glass according to claim 5, wherein said component (F) is silica. .Iaddend. .Iadd.10. The glass-run for a window glass according to claim 5, wherein said component (F) is clay. .Iaddend. .Iadd.11. The glass-run according to claim 5, wherein said component (F) is calcium carbonate. .Iaddend. .Iadd.12. The glass-run for window glass of a motor car comprising:   a substrate having a film coated on at least one part of the surface of the substrate to be contacted with the window glass; said film being formed by hardening a paint composition comprising:   (A) 100 parts by weight of a urethane polymer obtained by reacting a polyester polyol having terminal hydroxy groups and a molecular weight of 1000 to 3000 synthesized from a diol selected from a group consisting of propylene glycol, butanediol, pentanediol, hexanediol and an organic dicarboxylic acid selected from the group consisting of adipic acid and succinic acid with an organic diisocyanate selected from the group consisting of 4,4-diphenylmethane diisocyanate and 4,4'-diphenyl ether diisocyanate in the molar ratio of NCO/OH from 0.6/1 to 0.95/1;   (B) 10 to 60 parts by weight of a castor oil polyol comprising a copolymer of castor oil, phthalic anhydride and glycerol;   (C) 1 to 100 parts by weight of a urethane prepolymer having terminal isocyanate groups obtained by reacting a low molecular weight polyol with an organic diisocyanate;   (D) 2 to 100 parts by weight of a fluoro carbon resin selected from the group consisting of polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, polytrifluorochloro-ethylene and polyvinylidene fluoride;   (E) 5 to 100 parts by weight of a silicone oil selected from the group consisting of a dimethyl silicone oil, methyl chloro silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, fluoro silicone oil; and   (F) 2 to 8 parts by weight of at least one member of silica, clay, and   
     
     
        calcium carbonate. .Iaddend. .Iadd.13.  The glass-run according to claim 12, wherein said component (F) comprises silica. .Iaddend. .Iadd.14. The glass-run according to claim 12, wherein said component (F) comprises clay. .Iaddend. .Iadd.15. The glass-run according to claim 12, wherein 
     
     
        said component (F) comprises calcium carbonate. .Iaddend. .Iadd.16.  The glass-run according to claim 12, wherein said component (F) comprises four parts by weight of said at least one member. .Iaddend.