POLYETHER URETHANE POLYAMIDE COMPOSITION

PURPOSE:To provide the title compsn. having excellent impact resistance and flexibility and useful as a thermally stable thermoplastic elastomer, by blending a polyether urethane polyamide with an arom. amine antioxidant and a radical decomposing agent. CONSTITUTION:100pts.wt. polyether urethane pol...

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Bibliographic Details
Main Authors NIWANO MASAHIRO, KANAZAWA TAKENOBU
Format Patent
LanguageEnglish
Published 27.09.1988
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PURPOSE:To provide the title compsn. having excellent impact resistance and flexibility and useful as a thermally stable thermoplastic elastomer, by blending a polyether urethane polyamide with an arom. amine antioxidant and a radical decomposing agent. CONSTITUTION:100pts.wt. polyether urethane polyamide (A), which is a copolymer having at least one urethane group, wherein a polyether moiety having a number-average MW of 500-8,000 and a polyamide moiety in a weight ratio of 10-80 to 90-20 are linked to each other in a block form through a urethane linkage, is blended with 0.05-5pts.wt. arom. amine antioxidant (B) of formula I [wherein R and R are each a (1-8C alkyl or aralkyl-substd.)phenyl or a 10-18C condensed polycyclic hydrocarbon group] and 0.05-5pts.wt. at least one radical decomposing agent (C) of formulas II-V (wherein R , R and R are each a 9-18C hydrocarbon group; R is a tetravalent hydrocarbon group; R is a 6-24C hydrocarbon group; R is an m-valent arom. hydrocarbon group; m is 2-3; R and R are each a 6-18C hydrocarbon group; R and R are each a 1-18C hydrocarbon group or an 8-25C hydrocarbon group having -COO- or -NHCO- linkage; X is C, S or R ; n is 1-4).
Bibliography:Application Number: JP19870066845