MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
申请人:TABATA Masayoshi
公开号:US20110224343A1
公开(公告)日:2011-09-15
The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W
1
x
—Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III):
and monovalent residues represented by Formula (IV): —O—C(O)—R
7
—.
METHOD FOR PRODUCING BISCHLOROFORMATE COMPOUND, POLYCARBONATE OLIGOMER HAVING SMALL NUMBER OF MONOMERS AND SOLUTION CONTAINING BISCHLOROFMATE COMPOUND
申请人:Hikosaka Takaaki
公开号:US20120101292A1
公开(公告)日:2012-04-26
A dihydric phenol compound represented by the following formula (2), a phosgene compound, and an aliphatic tertiary amine are mixed together using a hydrophobic organic solvent to produce bischloroformate that is represented by the following formula (1) and has an average number of repeating units (n) of 1.99 or less.
In the formulae (1) and (2), Ar is a divalent aromatic group.
POLYCARBONATE POLYMER, COATING LIQUID, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY
申请人:Hikosaka Takaaki
公开号:US20100233603A1
公开(公告)日:2010-09-16
A polycarbonate polymer includes: a monomer unit represented by a formula (1A) below; and a monomer unit represented by a formula (2). A haze of a solution that is obtained by dissolving the polycarbonate polymer in THF (tetrahydrofuran) at a concentration of 10 mass % is 5% or less (according to JIS K7105, optical path length of 10 mm).
In the formula (1A), R and R′ each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; n1 is an integer in a range of 2 to 4; and n2 is an integer in a range of 25 to 220; and
in the formula (2), Ar represents a divalent aromatic group.
POLYCARBONATE COPOLYMER, COATING LIQUID USING SAME, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY
申请人:Hikosaka Takaaki
公开号:US20120100474A1
公开(公告)日:2012-04-26
A polycarbonate copolymer includes a repeating unit represented by a formula (1) below and a molar copolymer composition represented by Ar
2
/(Ar
1
+Ar
2
) in a range of 25 mol % to 50 mol %.
In the formula (1): Ar
1
and Ar
2
represent a divalent aromatic group; a chain end is terminated by a monovalent aromatic group or a monovalent fluorine-containing aliphatic group; and n represents an average repeating number of an Ar
1
block and is a numeral of 1.0 to 3.0, provided that Ar
1
and Ar
2
are not the same.
Polyester co-polyphosphonates including of phosphonates covalently incorporated with polyesters and methods for making such polyester co-polyphosphonates are described herein. The polyester co-phosphonates and compositions prepared from these compounds exhibit an excellent combination of processing characteristics, mechanical and fire resistant properties.