Invention Grant
US08168744B2 Polyimide film for molding, its manufacturing method and molding product
失效
用于成型的聚酰亚胺膜，其制造方法和成型产品
- Patent Title: Polyimide film for molding, its manufacturing method and molding product
- Patent Title (中): 用于成型的聚酰亚胺膜，其制造方法和成型产品
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Application No.: US12368045Application Date: 2009-02-09
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Publication No.: US08168744B2Publication Date: 2012-05-01
- Inventor: Toshihiro Teshiba
- Applicant: Toshihiro Teshiba
- Applicant Address: US DE Wilmington
- Assignee: E. I. du Pont de Nemours and Company
- Current Assignee: E. I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C08G73/16
- IPC: C08G73/16 ; C08G73/00 ; C08G12/08 ; B29C39/02
Abstract:
To provide a polyimide film for molding that is light and has excellent surface smoothness, safety, moldability, heat resistance, and handleability and thus can be used as the reflector base material for illuminating devices.The polyimide film for molding is made of a thermoplastic polyimide obtained from a reaction between an aromatic tetracarboxylic acid or its dianhydride and an aromatic diamine. The lowest viscoelasticity of storage elasticity (E′) of viscoelasticity is 108 Pa or lower, and the tensile elongation at glass transition temperature (E″) A is 150% or higher.
Public/Granted literature
- US20090209725A1 POLYIMIDE FILM FOR MOLDING, ITS MANUFACTURING METHOD AND MOLDING PRODUCT Public/Granted day:2009-08-20
Information query
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