Invention Grant
- Patent Title: Laminate of liquid crystalline polyester with copper foil
- Patent Title (中): 具有铜箔的液晶聚酯层压板
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Application No.: US11493603Application Date: 2006-07-27
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Publication No.: US07883780B2Publication Date: 2011-02-08
- Inventor: Satoshi Okamoto , Toyonari Ito
- Applicant: Satoshi Okamoto , Toyonari Ito
- Applicant Address: JP Tokyo
- Assignee: Sumitomo Chemical Company, Limited
- Current Assignee: Sumitomo Chemical Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2005-220341 20050729; JP2005-266646 20050914
- Main IPC: B32B15/09
- IPC: B32B15/09 ; B32B15/20 ; B05D3/02

Abstract:
The present invention provides a laminate comprising a resin layer and a copper foil. The resin layer is made from a liquid crystalline polyester having at least one structural unit selected from a structural unit derived from aromatic diamine and a structural unit derived from aromatic amine with a phenolic hydroxyl group in an amount of 10 to 35% by mole on the basis of the total structural units in the polyester. The copper foil has a tensile modulus of 60 GPa or smaller and a tensile strength at break of 150 MPa or smaller measured after heat treatment at a temperature of 300° C. The copper-foil laminate has good flexibility and high durability with little anisotropy is provided.
Public/Granted literature
- US20070026245A1 Laminate of liquid crystalline polyester with copper foil Public/Granted day:2007-02-01
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