Title:
MOLDED URETHANE FOAM AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/248671
Kind Code:
A1
Abstract:
This molded urethane foam comprises a base made of polyurethane foam and composite particles oriented and contained in the base. The composite particles comprise thermally conductive particles made of a nonmagnetic material and having a thermal conductivity of 200 W/m·K or greater and magnetic particles bonded to the surface of the thermally conductive particles with a binder, and have been surface-treated with one or more surfactants selected from among carboxylic acid type surfactants and succinic acid type surfactants. This method for producing the molded urethane foam comprises a step in which raw materials for granulation comprising a powder of the thermally conductive particles, a powder of the magnetic particles, the binder, one or more carboxylic acid type/succinic acid type surfactants, and water are stirred to produce composite particles, a step in which a powder of the composite particles is mixed with a raw material for urethane resin foam to produce a raw-material mixture, and a step in which the raw-material mixture is foamed and molded in a magnetic field.
Inventors:
KOSE TAKAHISA (JP)
NONAKA TOSHIYA (JP)
NONAKA TOSHIYA (JP)
Application Number:
PCT/JP2023/018945
Publication Date:
December 28, 2023
Filing Date:
May 22, 2023
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
B29C44/00; B29C39/24; B29C44/36; C08K3/00
Foreign References:
| JP2011225833A | 2011-11-10 | |||
| JP2015030735A | 2015-02-16 | |||
| CN106220821A | 2016-12-14 | |||
| JP2002124318A | 2002-04-26 | |||
| JPH0840724A | 1996-02-13 | |||
| JP2022145088A | 2022-10-03 |
Attorney, Agent or Firm:
HIGASHIGUCHI Michiaki et al. (JP)
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