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...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
21.02.2003
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: JP20020178605 |