Title:
URETHANE FOAM SHEET, CUSHION MATERIAL, AND METHOD FOR PRODUCING URETHANE FOAM SHEET
Document Type and Number:
WIPO Patent Application WO/2014/192249
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a urethane foam sheet with a substrate. The urethane foam sheet is thin, has excellent flexibility and a fine uniform structure, is easy to handle, has high strength, and does not contract. This urethane foam sheet is characterized by comprising a foam obtained by applying a mixture of a urethane resin, an organic solvent, water and a fluorine-based surfactant to one side of a substrate, which is a film of any one of a polyethylene terephthalate film, a polypropylene film or a methylpentene polymer film, and then applying heat. The urethane foam sheet is further characterized in that the organic solvent is a mixed solution of toluene and methyl ethyl ketone, and the foam is constituted by microcells having a continuous ventilation structure.
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Inventors:
MAEDA YUJI (JP)
SERA NORIYUKI (JP)
KAWAKAMI TAKESHI (JP)
SERA NORIYUKI (JP)
KAWAKAMI TAKESHI (JP)
Application Number:
PCT/JP2014/002643
Publication Date:
December 04, 2014
Filing Date:
May 20, 2014
Export Citation:
Assignee:
NHK SPRING CO LTD (JP)
MAEDA YUJI (JP)
SERA NORIYUKI (JP)
KAWAKAMI TAKESHI (JP)
MAEDA YUJI (JP)
SERA NORIYUKI (JP)
KAWAKAMI TAKESHI (JP)
International Classes:
B32B27/40; B05D3/02; B05D5/00; B05D7/24; B32B5/18; B32B27/00; B32B27/32; B32B27/36; B65D81/03; C08J7/043; C08J7/046; C08J9/02
Foreign References:
JP2011213942A | 2011-10-27 | |||
JP2012011516A | 2012-01-19 | |||
JP2012223856A | 2012-11-15 | |||
JP2013094929A | 2013-05-20 |
Attorney, Agent or Firm:
SHIMIZU, SADANOBU (JP)
Sadanobu Shimizu (JP)
Sadanobu Shimizu (JP)
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