Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1997-05-29
1999-12-14
Yoon, Tae
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
523500, 528303, 528306, C08J 328, C08G 6352, C08F 246, C08L 6706
Patent
active
060018917
ABSTRACT:
A biodegradable aliphatic polyester elastomer which has rubber-like elasticity, hardness of 80 or less in accordance with ASTM D 676-58T, and elastic modulus from 1.times.10.sup.5 Pa to 1.times.10.sup.8 Pa at 25.degree. C., and decomposes with ease in the natural environment, under composting conditions or under hydrolysis conditions. The biodegradable aliphatic elastomer can be obtained by crosslinking aliphatic polyester containing aliphatic unsaturated polybasic acid as a polymer constituting ingredient and having a weight average molecular weight of 15,000 or more.
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PN JP 6-298920 A (Showa Highpolymer Co. Ltd.) *abstract*.
Ajioka Masanobu
Higuchi Chojiro
Kashima Takeshi
Takagi Masatoshi
Terado Yuji
Mitsui Chemicals Inc.
Yoon Tae
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