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Patent Searching and Data


Title:
SURFACE PROTECTION FILM
Document Type and Number:
WIPO Patent Application WO/2018/221490
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a surface protection film which provides an excellent writing sensation when a stylus pen is used thereon and excellent scratch resistance against a stylus pen. As a solution, provided is a surface protection film which has on the outmost surface thereof a protection layer formed of a polyurethane, wherein the polyurethane has an international rubber hardness degree (IRHD) of 87.0-98.0 and a tanδ peak value of 0.6 or more.

Inventors:
KAMADA Yutaka (6-6, Minatojima Minamimachi 4-chome, Chuo-ku, Kobe-sh, Hyogo 47, 〒6500047, JP)
TANI Arata (6-6, Minatojima Minamimachi 4-chome, Chuo-ku, Kobe-sh, Hyogo 47, 〒6500047, JP)
HORIE Toshihiko (2-510-1, Toyonodai, Kazo-sh, Saitama 48, 〒3491148, JP)
KATO Soh (2-510-1, Toyonodai, Kazo-sh, Saitama 48, 〒3491148, JP)
Application Number:
JP2018/020485
Publication Date:
December 06, 2018
Filing Date:
May 29, 2018
Export Citation:
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Assignee:
BANDO CHEMICAL INDUSTRIES, LTD. (6-6 Minatojima Minamimachi 4-chome, Chuo-ku Kobe-sh, Hyogo 47, 〒6500047, JP)
International Classes:
C09J7/22; B32B27/40; C09J7/25; C09J201/00; G02B1/14; G06F3/041
Domestic Patent References:
WO2014141866A12014-09-18
WO2016093133A12016-06-16
Foreign References:
JP2016060833A2016-04-25
JP2015194921A2015-11-05
JPH06180628A1994-06-28
Attorney, Agent or Firm:
YAMADA Yasuyuki et al. (Unizo Suidobashi Bldg. 6F, 2-21-2 Kanda-Misakicho Chiyoda-k, Tokyo 61, 〒1010061, JP)
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