Invention Grant
- Patent Title: Polyarylate resin
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Application No.: US14906410Application Date: 2014-08-08
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Publication No.: US09862800B2Publication Date: 2018-01-09
- Inventor: Chiho Matsumoto , Takamasa Akizuki
- Applicant: UNITIKA LTD.
- Applicant Address: JP Amagasaki-Shi
- Assignee: UNITIKA LTD.
- Current Assignee: UNITIKA LTD.
- Current Assignee Address: JP Amagasaki-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2013-168192 20130813
- International Application: PCT/JP2014/071017 WO 20140808
- International Announcement: WO2015/022915 WO 20150219
- Main IPC: C08G63/193
- IPC: C08G63/193 ; C08J3/11 ; C08G63/195 ; C08G63/40 ; C08G63/181

Abstract:
An object of the present invention is to provide a polyarylate resin having an adequate ultraviolet-absorbing property and an adequate dissolving property in an organic solvent, which is excellent in a solution stability even when it is dissolved in a polar organic solvent having a high hygroscopic property and in a reactivity with the other material and adhesive properties to various materials. The present invention provides a polyarylate resin comprising a bisphenol component including a compound shown by a general formula (1) and an aromatic dicarboxylic acid component as monomeric components, wherein the polyarylate resin is satisfied with the formula mentioned below: ηB/ηA≦0.95 (wherein ηA represents an inherent viscosity measured in a concentration of 1 g/dL and a temperature of 25° C. using tetrachloroethane as a solvent and ηB represents an inherent viscosity measured in a concentration of 1 g/dL and a temperature of 25° C. using a mixture liquid of phenol/tetrachloroethane/sodium acetate having a mass ratio of 6/4/0.006 as a solvent): (wherein R1 and R2 respectively and independently represent an alkyl group.).
Public/Granted literature
- US20160159975A1 POLYARYLATE RESIN Public/Granted day:2016-06-09
Information query
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