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Title:
4-METHYL-1-PENTENE BASED RESIN FOAM AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/006059
Kind Code:
A1
Abstract:
The present invention prepares a 4-methyl-1-pentene based resin foam which contains a 4-methyl-1-pentene based resin, while having an expansion ratio of 3 or more. The limiting viscosity (η) of the 4-methyl-1-pentene based resin as measured in a decalin solvent at 135°C may be 0.5 to 5 dl/g. The 4-methyl-1-pentene based resin may have a glass transition temperature of from 0°C to 80°C. The 4-methyl-1-pentene based resin may have a melting point. The 4-methyl-1-pentene based resin may be a 4-methyl-1-pentene/C2-20 α-olefin copolymer (in particular, a 4-methyl-1-pentene/C2-4 α-olefin copolymer). The 4-methyl-1-pentene based resin foam may have an expansion ratio of 10 or more.

Inventors:
TANAKA YOUICHIROU (JP)
KIMURA YASUYOSHI (JP)
YAGI TAKAYUKI (JP)
Application Number:
JP2020/025128
Publication Date:
January 14, 2021
Filing Date:
June 26, 2020
Export Citation:
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Assignee:
DM NOVAFOAM LTD (JP)
International Classes:
C08J9/04
Domestic Patent References:
WO2013191222A12013-12-27
WO2018143411A12018-08-09
Foreign References:
JPS608329A1985-01-17
JPS6236432A1987-02-17
JP2014001346A2014-01-09
JPS62256836A1987-11-09
JP2014208797A2014-11-06
Attorney, Agent or Firm:
KUWATA Mitsuo et al. (JP)
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