Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
THERMOPLASTIC RESIN COMPOSITION, MOLDED OBJECT, AND PRODUCTION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/193922
Kind Code:
A1
Abstract:
Provided are a thermoplastic resin composition having a large shear-rate dependence, a molded object, and production methods. The thermoplastic resin composition comprises a polyolefin resin, a polyamide resin, and a modified elastomer and exhibits non-Newtonian properties in a flowing state. The molded object comprises the thermoplastic resin composition. The first of the production methods comprises: a step in which the thermoplastic resin composition that is kept flowing is molded at a shear rate of 80 sec-1 or higher; and a standby step in which the thermoplastic resin composition is on standby with shearing at a shear rate of 0 sec-1 or higher but lower than 80 sec-1. The second of the production methods comprises a first molding step, in which the thermoplastic resin composition is molded at a shear rate X1 to obtain a portion of a molded object, and a second molding step, in which the thermoplastic resin composition is molded at a shear rate X2 to obtain another portion of the molded object, the absolute value of the difference between X1 and X2 being 200 sec-1 or greater.

Inventors:
KITO Masayuki (1-1 Toyoda-cho, Kariya-sh, Aichi 51, 〒4488651, JP)
GEHO Kosuke (1-1 Toyoda-cho, Kariya-sh, Aichi 51, 〒4488651, JP)
SAKO Mitsutaka (1-1 Toyoda-cho, Kariya-sh, Aichi 51, 〒4488651, JP)
TAKAHASHI Goro (1-1 Toyoda-cho, Kariya-sh, Aichi 51, 〒4488651, JP)
Application Number:
JP2018/015147
Publication Date:
October 25, 2018
Filing Date:
April 10, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA BOSHOKU KABUSHIKI KAISHA (1-1 Toyoda-cho, Kariya-shi Aichi, 51, 〒4488651, JP)
International Classes:
C08L23/00; C08J3/21; C08L15/00; C08L77/00
Domestic Patent References:
WO2013094763A12013-06-27
WO2013094764A12013-06-27
WO2018021569A12018-02-01
Foreign References:
JP2013147648A2013-08-01
Attorney, Agent or Firm:
KOJIMA Seiji (JINGUHIGASHI ATSUTA Bldg, 4F. 8-20, Jingu 3-chome, Atsuta-ku, Nagoya-sh, Aichi 31, 〒4560031, JP)
Download PDF: