Title:
THERMOPLASTIC RESIN COMPOSITION AND MOULDED ARTICLE WITH REDUCED RATTLING NOISE
Document Type and Number:
WIPO Patent Application WO/2019/044709
Kind Code:
A1
Abstract:
[PROBLEM] To provide a thermoplastic resin composition capable of providing a moulded article which suppresses the occurrence of rattling noise and preferably has high rigidity. [SOLUTION] Provided is a thermoplastic resin composition that comprises a rubber-reinforced resin (A). The rubber-reinforced resin (A) comprises: a rubber portion (a1) including a rubber portion derived from a block copolymer, or hydrogenated product thereof; and a resin portion (a2) which includes a structural unit derived from an aromatic vinyl compound. The block copolymer includes: a block (I) which comprises a structural unit derived from an aromatic vinyl compound; and a block (II) which comprises a structural unit derived from isoprene or from isoprene and butadiene, and has a tanδ primary dispersion peak at no less than 0°C. The thermoplastic resin composition has a maximum sound pressure value of no more than 3.0 Pa/N over a frequency range of 20–20,000Hz measured under predetermined conditions.
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Inventors:
NOMURA HIROYUKI (JP)
TANAKA NARUKI (JP)
TANAKA NARUKI (JP)
Application Number:
PCT/JP2018/031381
Publication Date:
March 07, 2019
Filing Date:
August 24, 2018
Export Citation:
Assignee:
TECHNO UMG CO LTD (JP)
International Classes:
C08F279/02; C08L23/16; C08L25/02; C08L51/04; C08L51/06; C08L53/02
Domestic Patent References:
| WO2015146743A1 | 2015-10-01 | |||
| WO2018030398A1 | 2018-02-15 |
Foreign References:
| JP2001158841A | 2001-06-12 | |||
| JPH05331246A | 1993-12-14 | |||
| JP2002037974A | 2002-02-06 | |||
| JP2013112812A | 2013-06-10 | |||
| JP2001158841A | 2001-06-12 | |||
| JPH0345646A | 1991-02-27 | |||
| JPH083249A | 1996-01-09 | |||
| JP2011174029A | 2011-09-08 | |||
| JP2011137066A | 2011-07-14 |
Other References:
See also references of EP 3699212A4
Attorney, Agent or Firm:
IDE Masatake (JP)
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