CURABLE POLYURETHANE

PROBLEM TO BE SOLVED: To provide a curable elastomer maintaining the rubber-like elasticity at low temperature, and having excellent chemical resistance, excellent solvent resistance, high hardness and mechanical properties, and further to provide a molded product. SOLUTION: This curable (per)fluoro...

Full description

Saved in:
Bibliographic Details
Main Authors NOVELLI SERGIO, TURRI STEFANO, STACCIONE ANNA
Format Patent
LanguageEnglish
Published 21.02.2003
Edition7
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a curable elastomer maintaining the rubber-like elasticity at low temperature, and having excellent chemical resistance, excellent solvent resistance, high hardness and mechanical properties, and further to provide a molded product. SOLUTION: This curable (per)fluoro-polyether polyurethane is obtained by reacting (a) a (per)fluoro-polyether diol having 2,000-5,000 number average molecular weight with (b) a diisocyanate of the formula: OCN-R-NCO (VIA) [wherein, R is a hydrogenated and/or fluorinated group], and further reacting the product with (c) a saturated or unsaturated aliphatic hydrogenated diol, an (alkyl)alicyclic diol, an aromatic diol or an oligomer or a polymer of butadiene having 500-4,000 number average molecular weight and hydroxy terminal groups.
Bibliography:Application Number: JP20020178605