Invention Grant
- Patent Title: Multilayer composite
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Application No.: US14770946Application Date: 2014-03-14
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Publication No.: US10562282B2Publication Date: 2020-02-18
- Inventor: Adam N. Toft , Jack Reed , Amy A. Lefebvre , Charles C. Crabb , Florence Mehlmann
- Applicant: Adam N. Toft , Arkema France
- Applicant Address: FR Colombes
- Assignee: Arkema France
- Current Assignee: Arkema France
- Current Assignee Address: FR Colombes
- Agent Thomas F. Roland
- International Application: PCT/US2014/027085 WO 20140314
- International Announcement: WO2014/152218 WO 20140925
- Main IPC: B32B27/08
- IPC: B32B27/08 ; B32B27/30 ; B32B27/32 ; B32B27/36 ; B32B7/12 ; B32B27/40 ; B32B37/14 ; E04F15/10 ; B32B27/20

Abstract:
The invention relates to multilayer composites having improved weathering properties without reducing flame retardation properties. The composites have a fluoropolymer layer over a thermoplastic layer. The multilayer composite may be a fluoropolymer layer directly over a relatively flammable substrate or non-flammable substrate (like PVC), or it may be a fluoropolymer layer over a relatively flammable cap layer, over a substrate (that is flammable or non-flammable). The composite is formed using coating, coextrusion and/or lamination techniques. The multilayer composite is especially useful in articles having surfaces that are used in a relatively horizontal position, including decking, railings, roofing and window profiles. The composites provide improved weathering for the substrate without a reduction in flame-resistance, when compared to the substrate without the outer fluoropolymer layer. The multi-layer composite also provides enhanced chemical resistance, hardness, scratch and mar, and water resistance.
Public/Granted literature
- US20160009060A1 MULTILAYER COMPOSITE Public/Granted day:2016-01-14
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