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Title:
AROMATIC POLYESTER, LIQUID AROMATIC-POLYESTER COMPOSITION, PROCESS FOR PRODUCING AROMATIC-POLYESTER FILM, AND AROMATIC-POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2017/043439
Kind Code:
A1
Abstract:
An aromatic polyester which comprises, as constituent units, (A) a repeating unit represented by the following formula (a), (B) a repeating unit derived from an aromatic dicarboxylic acid, (C) a repeating unit derived from an aromatic amine selected from the group consisting of aromatic diamines and hydroxylated aromatic amines, and (D) a repeating unit derived from an aromatic diol, the content of repeating unit (A) being 10 mol% or higher but less than 20 mol%, the content of repeating unit (B) being more than 40 mol% but not more than 45 mol%, the total content of repeating unit (C) and repeating unit (D) being more than 40 mol% but not more than 45 mol%, and the content of repeating unit (D) being more than 0 mol% but less than 15 mol%, with respect to the total amount of repeating units (A) to (D). -O-Ar1-CO- (a) (In the formula, Ar1 represents a 1,4-phenylene, 2,6-naphthylene, or 4,4'-biphenylene group, provided that one or more hydrogen atoms of the group expressed by Ar1 each may have been independently replaced by a halogen atom, an alkyl group, or an aryl group.)

Inventors:
SUGIYAMA TAKAYUKI (JP)
ITO TOYONARI (JP)
Application Number:
PCT/JP2016/075975
Publication Date:
March 16, 2017
Filing Date:
September 05, 2016
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C08G69/44; C08J5/18; C08L77/12
Foreign References:
JP2006199769A2006-08-03
JP2012514066A2012-06-21
JPS62132926A1987-06-16
JP2012530793A2012-12-06
Other References:
See also references of EP 3348597A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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