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Title:
POLYURETHANE FOAM FOR HIGH-FREQUENCY WELDING, LAMINATE, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/116864
Kind Code:
A1
Abstract:
Provided are: polyurethane foam for high-frequency welding which, when laminated to a thermoplastic resin base by high-frequency welding with a high-frequency welder even with low compression-bonding strength, gives a laminate having improved bonding strength; a laminate obtained by thermally fusion-bonding the polyurethane foam for high-frequency welding to a thermoplastic resin; and a method for producing the laminate. The polyurethane foam for high-frequency welding is characterized by comprising a portion to be bonded and a portion to be not bonded, at least some of the portion to be bonded having a lower compression load than the portion to be not bonded.

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Inventors:
YAMANAKA YUSUKE (JP)
Application Number:
PCT/JP2018/043348
Publication Date:
June 20, 2019
Filing Date:
November 26, 2018
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08J9/36; B32B5/18; B32B27/40; B60K37/00; B60R13/02; C08G18/00; C08G101/00
Foreign References:
JPS6066783A1985-04-16
JPH0620711U1994-03-18
JP2016043684A2016-04-04
JPH0329100U1991-03-22
US20170173856A12017-06-22
JP2008111045A2008-05-15
JP2011241336A2011-12-01
JP2008031310A2008-02-14
JP2008111045A2008-05-15
Other References:
See also references of EP 3725831A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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