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Title:
POLYURETHANE HAVING LOW FRICTION COEFFICIENT
Document Type and Number:
Japanese Patent JP2002030294
Kind Code:
A
Abstract:

To obtain an aqueous polymer composition for forming a coating film having <0.4 dynamic friction coefficient, high adhesiveness to a substrate, excellent photooxidation resistance, frication resistance, low water absorption and with a thin thickness in dry.

A coating film having dry lubricating properties is formed on a rubber, a plastic, a metal or glass by using a thermally crosslinkable fluorinated polyurethane obtained from an aqueous dispersion of a cationic oligourethane which is composed of a branch-containing thermally crosslinkable (per)fluoropolyether as a base and is formed from (a) a polyisocyanate having an NCO functionality larger than 2, (b) a bifunctional hydrogenated monomer, (c) a bifunctional hydroxylated (per)fluoropolyether and/or (e) a monofunctional hydroxy- or carboxy(per)fluoropolyether or a monofunctional hydroxy(per) fluoroalkane.


Inventors:
SCICCHITANO MASSIMO
TROMBETTA TANIA
TURRI STEFANO
Application Number:
JP2001173142A
Publication Date:
January 31, 2002
Filing Date:
June 07, 2001
Export Citation:
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Assignee:
AUSIMONT SPA
International Classes:
C08G18/08; C08G18/28; C08G18/50; C08G18/80; C09D175/04; C10M149/18; C10M173/02; C10N20/04; C10N30/00; C10N30/10; C10N50/08; C10N60/00; (IPC1-7): C10M173/02; C08G18/50; C08G18/80; C10M149/18
Domestic Patent References:
JPH06145598A1994-05-24
JPH0853648A1996-02-27
JPH0912664A1997-01-14
JPS63295616A1988-12-02
JPH02180918A1990-07-13
JPH04123315A1992-04-23
JP2001019736A2001-01-23
Attorney, Agent or Firm:
Uchida Yukio