Title:
熱可塑性エラストマーおよびその成形体
Document Type and Number:
Japanese Patent JP4173483
Kind Code:
B2
Abstract:
A thermoplastic elastomer excellent in rubber elasticity and extrudability and a molded object thereof. The thermoplastic elastomer comprises a partly or wholly crosslinked rubber (A), an isotactic polypropylene (B) having an isotactic pentad content of 0.8 or higher, a syndiotactic polypropylene (C) having a syndiotactic pentad content of 0.6 or higher, and a softener (D), the content of the syndiotactic of the syndiotactic polypropylene (C) being in the range of 0.5 to 10 wt.% based on the sum of the crosslinked rubber (A), isotactic polypropylene (B), syndiotactic polypropylene (C), and softener (D), the thermoplastic elastomer having a melt flow rate of 0.01 to 1000 g/10min as measured in accordance with ASTMD 1238 at 230 DEG C under a load of 10 kg. The molded object is obtained by extrusion-molding the elastomer.
Inventors:
Tadashi Imai
Application Number:
JP2004532704A
Publication Date:
October 29, 2008
Filing Date:
August 26, 2003
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08L19/00; C08J3/24; C08L21/00; C08L23/10; C08L23/12; C08L23/16; C08K5/14; C08L23/06; C08L91/00
Domestic Patent References:
| JP2000212348A | ||||
| JP2001011247A |
Attorney, Agent or Firm:
Shunichiro Suzuki
Previous Patent: 側鎖にπ共役基を有する新規ポリエステル及びこのポリエステルを用いた...
Next Patent: MULTI-PURPOSE AUXILIARY CRAWLER DEVICE FOR AUTOMOBILE
Next Patent: MULTI-PURPOSE AUXILIARY CRAWLER DEVICE FOR AUTOMOBILE