Invention Grant
- Patent Title: Decorative sheet containing a polyurethane layer and structure
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Application No.: US14400078Application Date: 2013-05-15
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Publication No.: US09695338B2Publication Date: 2017-07-04
- Inventor: Ken Egashira , Hiroshi Sakaguchi , Hiroki Wakamatsu , Tomotaka Araki
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Priority: JP2012-112502 20120516
- International Application: PCT/US2013/041090 WO 20130515
- International Announcement: WO2013/173424 WO 20131121
- Main IPC: C09J7/02
- IPC: C09J7/02 ; B44C1/20 ; B32B27/40 ; C08G18/66 ; C08G18/75 ; C08G18/79 ; C08G18/08 ; C09D175/06 ; C08G18/44

Abstract:
In a decorative sheet including a surface layer and an adhesion layer, the surface layer is a polyurethane layer obtained by crosslinking using a curing agent and coating and drying of a straight chain polyurethane resin having a specified molecular weight and acid value, the polyurethane resin being obtained by reaction of a diamine chain extender agent with a polyurethane prepolymer obtained by reaction of a polycarbonate diol having an alicyclic structure, an aliphatic diol having a carboxyl group, and 4,4′-cyclohexylmethandiisocyanate.
Public/Granted literature
- US20150111012A1 DECORATIVE SHEET CONTAINING A POLYURETHANE LAYER AND STRUCTURE Public/Granted day:2015-04-23
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