Invention Grant
- Patent Title: Multilayer hard coating film
-
Application No.: US15559400Application Date: 2016-02-05
-
Publication No.: US11065851B2Publication Date: 2021-07-20
- 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
- Agency: Bracewell LLP
- Agent Brad Y. Chin
- Priority: JP2015-054437 20150318,JPJP2016-017706 20160202
- International Application: PCT/JP2016/053556 WO 20160205
- International Announcement: WO2016/147739 WO 20160922
- Main IPC: B32B27/18
- IPC: B32B27/18 ; B32B27/36 ; B32B7/02 ; B32B7/12 ; B32B38/00 ; B32B27/20 ; B32B27/30 ; B29C48/21 ; C08J7/043 ; C08J7/046 ; C09D7/40

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
- US20180072029A1 MULTILAYER HARD COATING FILM Public/Granted day:2018-03-15
Information query