Title:
HYDROGENATED STYRENE BLOCK COPOLYMER AND PREPARATION METHOD THEREFOR AS WELL AS USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/127356
Kind Code:
A1
Abstract:
A hydrogenated styrene block copolymer thermoplastic elastomer with a cross-linkable rigid block, having a following structure: C1-(Ax-By)n-C2, [C1-(Ax-By)n-C2]m-R or [C1-(Ax-By)n]m-R, and formed by polymerizing an anionic solution. The styrene monomers in the block copolymer have a weight percentage weight of 50-80%, a number-average molecular weight of 50000-300000 g/mol, and a molecular weight distribution index of 1.05-1.45. In a polymerization block C of the cross-linkable styrene monomer, the weight percentage content of cross-linkable styrene monomer units in the whole block polymer is 2.0-9.0%. The copolymer has an obvious internal friction peak (tanδ) at -30-35°C, a peak value of the internal friction peak is -5-10°C, and the peak value tanδ ≥ 0.7. The thermoplastic elastomer shows relatively low compressive permanent deformation. Also disclosed are a preparation method for the thermoplastic elastomer and a use of the thermoplastic elastomer.
Inventors:
ZHOU ZANBIN (CN)
Application Number:
PCT/CN2015/072859
Publication Date:
August 18, 2016
Filing Date:
February 12, 2015
Export Citation:
Assignee:
ZHEJIANG SANPO POLYMER CO LTD (CN)
International Classes:
C08F297/04; C08F2/06; C08F8/04; C08F36/04; C08F36/06; C08F36/08; C08F236/04; C08F236/06; C08F236/08; C08F236/10
Foreign References:
CN101616985A | 2009-12-30 | |||
CN101155845A | 2008-04-02 | |||
US20090062457A1 | 2009-03-05 |
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
北京市金杜律师事务所 (CN)
北京市金杜律师事务所 (CN)
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