Invention Application
- Patent Title: MULTILAYER HARD COATING FILM
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Application No.: US15559400Application Date: 2016-02-05
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Publication No.: US20180072029A1Publication Date: 2018-03-15
- Inventor: Kohei NAKASHIMA , Hideaki YAMBE , Nozomu WASHIO , Taketo HASHIMOTO
- Applicant: RIKEN TECHNOS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: RIKEN TECHNOS CORPORATION
- Current Assignee: RIKEN TECHNOS CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2015-054437 20150318; JP2016-017706 20160202
- International Application: PCT/JP2016/053556 WO 20160205
- Main IPC: B32B27/18
- IPC: B32B27/18 ; B32B27/30 ; B32B7/02 ; B32B27/20 ; C08J7/04 ; C09D7/12 ; B32B38/00 ; B32B7/12 ; B29C47/06

Abstract:
One embodiment provides a multilayer hard coating film which sequentially includes, from the superficial layer side, a first hard coating and a resin film, and wherein: the first hard coating is formed from a coating material that contains a specific amount of (A) a polyfunctional (meth)acrylate and a specific amount of (B) a water repellent agent, while containing no inorganic particles; and the resin film includes at least one layer of (α) an acrylic resin that contains 50-95% by mole of a structural unit derived from methyl methacrylate and 50-5% by mole of a structural unit derived from vinyl cyclohexane when the total of the structural units derived from polymerizable monomers is taken as 100% by mole. Another embodiment provides a multilayer hard coating film which includes a second hard coating in addition to a first hard coating, and wherein: the first hard coating contains (C) a silane coupling agent in addition to the above-described components (A) and (B); and the second hard coating is formed from a coating material that contains a specific amount of (A) a polyfunctional (meth)acrylate and a specific amount of (D) inorganic fine particles having an average particle diameter of 1-300 nm.
Public/Granted literature
- US11065851B2 Multilayer hard coating film Public/Granted day:2021-07-20
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