公开(公告)号：US09862800B2

公开(公告)日：2018-01-09

申请号：US14906410

申请日：2014-08-08

Applicant: UNITIKA LTD.

Inventor： Chiho Matsumoto ,  Takamasa Akizuki

IPC: C08G63/193 ,  C08J3/11 ,  C08G63/195 ,  C08G63/40 ,  C08G63/181

CPC classification number: C08G63/193 ,  C08G63/181 ,  C08G63/195 ,  C08G63/40 ,  C08J3/11 ,  C08J2367/03

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.).

公开(公告)号：US20150175742A1

公开(公告)日：2015-06-25

申请号：US14416158

申请日：2013-08-02

Applicant: UNITIKA LTD.

Inventor： Chiho Matsumoto ,  Takamasa Akizuki

IPC: C08G63/682 ,  C08G63/695 ,  C09D167/00

CPC classification number: C08G63/682 ,  C08G63/6826 ,  C08G63/695 ,  C08G63/6956 ,  C08J5/18 ,  C08J2333/00 ,  C09D167/00

Abstract: The polyarylate resin of the present invention includes a bisphenol residue represented by the general formula (1) and an aromatic dicarboxylic acid residue represented by the general formula (2). In formula (1), R1 and R2 each independently represent a hydrocarbon group having 1 to 6 carbon atoms, a halogenated alkyl group or a halogen atom, p and q each independently represent an integer of 0 to 4, and X represents a fluorine atom-containing divalent group. In formula (2), R3 and R4 each independently represent a hydrocarbon group having 1 to 6 carbon atoms, a halogenated alkyl group or a halogen atom, and r and s each independently represent an integer of 0 to 4.

Abstract translation: 本发明的聚芳酯树脂包括由通式（1）表示的双酚残基和由通式（2）表示的芳族二羧酸残基。 式（1）中，R 1和R 2各自独立地表示碳原子数1〜6的烃基，卤代烷基或卤素原子，p和q各自独立地表示0〜4的整数，X表示氟原子 的二价基团。 式（2）中，R 3和R 4各自独立地表示碳原子数1〜6的烃基，卤代烷基或卤素原子，r和s各自独立地表示0〜4的整数。