Title:
HYDROGENATION PRODUCT OF BLOCK COPOLYMER OR SHEET OR FILM OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/109743
Kind Code:
A1
Abstract:
It is intended to provide a hydrogenation product of a block copolymer which is a hydrogenation of a block copolymer having a weight ratio of an aromatic vinyl hydrocarbon to a conjugated diene of from 55/45 to 95/5, a number-average molecular weight measured by gel permeation chromatography (GPC) of from 30,000 to 500,000 and a hydrogenation ratio of 30% or more, is suitably usable in sheets and heat-shrinkable films being excellent in solvent resistance, rigidity, elongation and transparency and has well-balanced physicochemical properties, wherein the degree of blocking in the aromatic vinyl hydrocarbon contained in the hydrogenated product is from 60 to 98% by weight, the ratio of aromatic vinyl hydrocarbon polymer blocks having a molecular weight of 50,000 or less to the total aromatic vinyl hydrocarbon polymer blocks is 80% by weight or more, the ratio of aromatic vinyl hydrocarbon polymer blocks having a molecular weight of 15,000 or less is from 10 to 80% by weight, and at least one peak temperature of the function tan&dgr in measuring the dynamic viscoelasticity of the hydrogenation product occurs in the scope exceeding -80oC but lower than -10oC, and a composition of the hydrogenation product of the block copolymer.
Inventors:
HOSHI SUSUMU
YAMAURA YUKIO
YAMAURA YUKIO
Application Number:
PCT/JP2006/307490
Publication Date:
October 19, 2006
Filing Date:
April 07, 2006
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
HOSHI SUSUMU
YAMAURA YUKIO
HOSHI SUSUMU
YAMAURA YUKIO
International Classes:
C08F297/04; B29C55/02; B29C61/06; B32B27/30; C08F8/04; C08K5/00; C08L25/00; C08L53/00
Domestic Patent References:
| WO2003091334A1 | 2003-11-06 | |||
| WO2003091303A1 | 2003-11-06 |
Foreign References:
| JP2005060564A | 2005-03-10 | |||
| JP2003321592A | 2003-11-14 | |||
| JPH06184253A | 1994-07-05 | |||
| JPH05245928A | 1993-09-24 | |||
| JPH05245927A | 1993-09-24 | |||
| JP2005126546A | 2005-05-19 |
Attorney, Agent or Firm:
Oguri, Shohei (7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, JP)
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