Title:
FLOORING AND METHOD FOR PRODUCTION OF FLOORING
Document Type and Number:
WIPO Patent Application WO/2023/090319
Kind Code:
A1
Abstract:
In order to realize flooring that exhibits an excellent effect of minimizing steps and upward thrust at tongue parts and excellent fittability at tongue parts, a flooring (10) according to the present invention is configured such that: the linear expansion coefficients of a foaming resin layer (1) and a non-foaming resin layer (2) and the difference in linear expansion coefficient between the layers are defined to fall within specific ranges, respectively; the tensile modulus of elasticity of the non-foaming resin layer (2) and the difference in tensile modulus of elasticity between the foaming resin layer (1) and the non-foaming resin layer (2) are defined to fall within specific ranges, respectively; and the tongue parts of the flooring (10) are formed from the foaming resin layer (1) and the non-foaming resin layer (2).
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Inventors:
KADO WATARU (JP)
KAWANISHI HIROKI (JP)
KATO TAKEHARU (JP)
KAWANISHI HIROKI (JP)
KATO TAKEHARU (JP)
Application Number:
PCT/JP2022/042394
Publication Date:
May 25, 2023
Filing Date:
November 15, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
DAINIPPON PRINTING CO LTD (JP)
BANDAI TOKUSHU GOUHAN CO LTD (JP)
DAINIPPON PRINTING CO LTD (JP)
BANDAI TOKUSHU GOUHAN CO LTD (JP)
International Classes:
E04F15/02
Foreign References:
| JP2533781Y2 | 1997-04-23 | |||
| JP3070882B2 | 2000-07-31 | |||
| JPH0657927A | 1994-03-01 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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