Thermoplastic resin composition, communication device member, and microwave and/or millimeter wave communication device
AssigneeMitsubishi Chemical Corporation
InventorsShohei TOMITA, Masashi YOKOGI, Hodaka TABEI
Life of this patent
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Abstract
A thermoplastic resin composition including a polycarbonate resin with a structural unit (A) represented by the following formula (1), wherein a hydrolysate produced by hydrolyzing the polycarbonate resin contains dihydroxy compounds represented by the following formulae (2) to (4), and a total amount of the dihydroxy compound represented by the formula (3) and the dihydroxy compound represented by the formula (4) in the hydrolysate is 0.85% by mass or more of an amount of the dihydroxy compound represented by the formula (2).
Claims31
A thermoplastic resin composition comprising a polycarbonate resin with a structural unit (A) represented by the following formula (1),
- wherein a hydrolysate produced by hydrolyzing the polycarbonate resin contains dihydroxy compounds represented by the following formulae (2) to (4), and
- a total amount of the dihydroxy compound represented by the formula (3) and the dihydroxy compound represented by the formula (4) in the hydrolysate is 0.85% by mass or more of an amount of the dihydroxy compound represented by the formula (2):
The thermoplastic resin composition according to claim
- wherein the thermoplastic resin composition comprises a polycarbonate resin with a structural unit (A) represented by the following formula (1) and a structural unit (B) represented by the following formula (5),
- a hydrolysate produced by hydrolyzing the polycarbonate resin contains dihydroxy compounds represented by the following formulae (2), (3), (4), and (6), and
- the total amount of the dihydroxy compound represented by the following formula (3) and the dihydroxy compound represented by the following formula (4) in the hydrolysate is 1.00% by mass or more of the amount of the dihydroxy compound represented by the following formula (2):
- wherein, in the formulae (5) and (6), X denotes at least one selected from a single bond, an oxygen atom, a sulfur atom, and a divalent organic group, excluding a 3,3, 5-trimethylcyclohexylidene group.
A dihydroxy compound represented by the following formula (3) or (4):
A thermoplastic resin composition comprising a polycarbonate resin, wherein
- the polycarbonate resin contains a structural unit (a) represented by the following formula (11) and a structural unit (b) represented by the following formula (12A) and/or the following formula (12B),
- a solution of 0.7 g of the polycarbonate resin dissolved in 100 mL of methylene chloride has a specific viscosity in the range of 0.308 to 0.455 as measured at 20° C.,
- the polycarbonate resin has a viscosity-average molecular weight in the range of 17,300 to 26,400, and a hydrolysate produced by hydrolyzing the polycarbonate resin contains dihydroxy compounds represented by the following formulae (13), (14), (15A), and (15B), and an amount of the dihydroxy compound represented by the formula (14) in the hydrolysate ranges from 100 ppm to 1,300 ppm of an amount of the dihydroxy compound represented by the formula (13):
- wherein:
- in the formula (11), Q denotes at least one selected from a single bond, an oxygen atom, a sulfur atom, and a divalent organic group;
- in the formula (12A), R11 each independently denotes an alkyl group with 1 to 4 carbon atoms, and n is an integer in the range of 0 to 3;
- in the formula (12B), W denotes a methyl group or a phenyl group;
- in the formula (13), Q is the same as Q in the formula (11);
- in the formula (14), Q is the same as Q in the formula (11), and R12 denotes a hydrogen atom or a methyl group;
- in the formula (15A), R11 is the same as R11 in the formula (12A);
- and
- in the formula (15B), W is the same as W in the formula (12B).
Dependencies are inferred from the claim text.