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期刊专利论文

一种多用途氢化嵌段共聚物树脂的制备方法

来源:互联网2018年11月15日

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HYDROGENATED BLOCK COPOLYMER, RESIN COMPOSITION, PRESSURE-SENSITIVE ADHESIVE, ADHESIVE, MOLDED OBJECT, LIQUID-PACKAGING CONTAINER, MEDICAL TOOL, MEDICAL TUBE, CORNER MEMBER FOR WEATHER SEAL, AND WEATHER SEAL  

(一种多用途氢化嵌段共聚物树脂的制备方法)

Inventor(s): OSHITA SHINYA; NOJIMA YUSUKE; MASUDA MIKIO

Priority number(s): JP20150033855 20150224

Abstract of  WO2016136760 (A1):

Provided are: a hydrogenated block copolymer which gives a resin composition that has satisfactory moldability and sufficient mechanical strength, is excellent in terms of flexibility, kink resistance, and transparency, and is excellent also in terms of tackiness, adhesiveness, or weatherability; a resin composition containing the hydrogenated block copolymer; and a pressure-sensitive adhesive, an adhesive, a molded object, a liquid-packaging container, a medical tool, a medical tube, a corner member for weather seals, and a weather seal which each comprise or include either the hydrogenated block copolymer or the resin composition. Specifically, the hydrogenated block copolymer is obtained by hydrogenating a block copolymer which comprises a polymer block (A) consisting mainly of structural units derived from an aromatic vinyl compound and a polymer block (B) consisting mainly of structural units derived from isoprene, structural units derived from butadiene, or structural units derived from a mixture of isoprene and butadiene. The content of the polymer block (A) is 1 mass% or higher but less than 5 mass% relative to the whole hydrogenated block copolymer, and the polymer block (B) has a total content of 1,2-bonds and 3,4-bonds of 30-85 mol%. The polymer block (B) has a degree of hydrogenation of 80 mol% or greater, and the hydrogenated block copolymer has a weight-average molecular weight of 150,000-800,000.

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