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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING LAYERED OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2017/138449
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a layered optical film, whereby it is possible to suppress the occurrence of defects in the layered optical film which are based on flaws or deformation in an affixing roll. A first optical film 2 and a second optical film 3 disposed on one or both surfaces of the first optical film 2 via an adhesive layer or a pressure-sensitive-adhesive layer are introduced between a pair of rotating affixing rolls 1, 1, and the first optical film 2 and the second optical film 3 are affixed to each other. Here, among the pair of affixing rolls 1, 1, because an outermost layer of at least one affixing roll 1 is rubber and the elastic recovery rate of the rubber is 70% or greater, flaws are not prone to occur in the affixing roll 1, and the affixing roll 1 readily recovers from deformation.

Inventors:
AMITANI, Keiji (LIMITED 1-1, Oe-cho, Niihama-sh, Ehime 15, 〒7920015, JP)
MATSUOKA, Yusuke (LIMITED 1-1, Oe-cho, Niihama-sh, Ehime 15, 〒7920015, JP)
YOSHIDA, Naoki (203 Fainnfiruto-sero, 1419-1 Komahane, Koga-sh, Ibaraki 21, 〒3060221, JP)
Application Number:
JP2017/003944
Publication Date:
August 17, 2017
Filing Date:
February 03, 2017
Export Citation:
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Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED (27-1, Shinkawa 2-chome Chuo-k, Tokyo 60, 〒1048260, JP)
International Classes:
G02B5/30; B29C65/48; B29C65/78; B32B37/10; B29L7/00; B29L9/00; B29L11/00
Foreign References:
JP2014016450A2014-01-30
JP2011138032A2011-07-14
JP2014166707A2014-09-11
JP2010159810A2010-07-22
JP2012150453A2012-08-09
JP2007256688A2007-10-04
JP2010134255A2010-06-17
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (LIMITED 5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 50, 〒5418550, JP)
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