US4743641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate resin composition
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1987-01-12
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Granted: 1988-05-10
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Expires: 2007-01-12
Abstract
Abstract A polycarbonate resin composition comprising (A) a polycarbonate resin containing from 10 to 6,000 ppm of phenolic residues, (B) a partial ester of an aliphatic saturated monovalent carboxylic acid and a polyhydric alcohol in amount of from 0.001 to 0.5 part by weight per 100 parts by weight of the component (A) and (C) a mixture of one or more of an aliphatic higher monohydric alcohols in amount of from 0.003 to 1.0 part by weight per 100 parts by weight of the component (A). By the use of this composition, a molding having an excellent appearance can be produced.
Inventors
- 👤 Tatsuji Shizawa
- 👤 Naoki Nonagase
- 👤 Kenji Ozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:09
CPC Classifications
C; C08; C08L; C08L69/00; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
98 words
A polycarbonate resin composition which comprises (A) a polycarbonate resin derived from a divalent phenol and a carbonate precursor and containing from 10 to 6,000 parts per million of phenolic residues, (B) a partial ester of an aliphatic saturated monovalent carboxylic acid and a polyhydric alcohol in amount of from 0.001 to 0.5 part by weight per 100 parts by weight of the component (A) and (C) a mixture of one or more of an aliphatic higher monohydric alcohol in amount of from 0.003 to 1.0 part by weight per 100 parts by weight of the component (A).
Claim 2
Dependent Claim
98 words
A polycarbonate resin composition which comprises (A) a polycarbonate resin derived from a divalent phenol and a carbonate precursor and containing from 10 to 6,000 parts per million of phenolic residues, (B) a partial ester of an aliphatic saturated monovalent carboxylic acid and a polyhydric alcohol in amount of from 0.001 to 0.5 part by weight per 100 parts by weight of the component (A) and (C) a mixture of one or more of an aliphatic higher monohydric alcohol in amount of from 0.003 to 1.0 part by weight per 100 parts by weight of the component (A).
Claim 3
Dependent Claim
26 words
The composition as claimed in claim 1, wherein the polycarbonate resin is a polycarbonate resin having a viscosity average molecular weight of from 10,000 to 100,000.
Claim 4
Dependent Claim
33 words
The composition as claimed in claim 1, wherein the aliphatic saturated monovalent carboxylic acid of the component (B) is an aliphatic saturated monovalent carboxylic acid having carbon atoms of from 10 to 24.
Claim 5
Dependent Claim
38 words
The composition as claimed in claim 3, wherein the aliphatic saturated monovalent carboxylic acid is a compound selected from the group consisting of capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid and behenic acid.
Claim 6
Dependent Claim
50 words
The composition as claimed in claim 1, wherein the polyhydric alcohol of the component (B) is a compound selected from the group consisting of ethylene glycol, propylene glycol, ethylethylene glycol, trimethylene glycol, tetramethylene glycol, propanetriol, methylpropanetriol, butanetriol, pentanetriol, hexanetriol, erythritol, pentaerythritol, diglycerine, sorbitan, adonitol, arabitol, allitol, talitol, sorbitol and mannitol.
Claim 7
Dependent Claim
33 words
The composition as claimed in claim 1, wherein the component (B) is a compound selected from the group consisting of glycerine monostearate, diglycerine monostearate, glycerine monopalmitate, glycerine monobehenate, sorbitan monostearate and pentaerythritol monostearate.
Claim 8
Dependent Claim
31 words
The composition as claimed in claim 1, wherein the aliphatic higher monohydric alcohols of the component (C) is an aliphatic higher monohydric alcohols having carbon atoms of from 12 to 30.
Claim 9
Dependent Claim
33 words
The composition as claimed in claim 7, wherein the aliphatic higher monohydric alcohol is a compound selected from the group consisting of myristyl alcohol, cetyl alcohol, stearyl alcohol, arachidic alcohol and behenyl alcohol.
Claim 10
Dependent Claim
42 words
The composition as claimed in claim 1 wherein said divalent phenol is selected from the group consisting of 2,2-bis(4-hydroxyphenyl)propane, hydroquinone, 4,4'-dihydroxydiphenyl, bis(4-hydroxyphenyl) alkane, bis(4-hydroxyphenyl) cycloalkane, bis(4-hydroxyphenyl) sulfide, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4-hydroxyphenyl)ether, (3,5-dibromo-4-hydroxyphenyl) propane, bis(3,5-dichloro-4-hydroxyphenyl)propane, homopolymers thereof and copolymers of two or more thereof.
Claim 11
Dependent Claim
14 words
The composition of claim 9 wherein said carbonate precursor is phosgene or diphenyl carbonate.
Claim 12
Dependent Claim
39 words
The composition of claim 10 wherein the divalent phenol is 2,2-bis(4-hydroxyphenyl) propane, the partial ester is glycerin monostearate, diglycerine monostearate, glycerine monobehenate or pentaerythritol monostearate; and the higher monohydric alcohol is stearyl alcohol, behenyl alcohol or a mixture thereof.
Claim 13
Dependent Claim
51 words
The composition as claimed in claim 11 wherein the aliphatic saturated monovalent carboxylic acid has 10 to 24 carbon atoms and the polyhydric alcohol is ethylene glycol, propylene glycol, ethylethylene glycol, trimethylene glycol, tetramethylene glycol, propanetriol, methylpropanetriol, butanetriol, pentanetriol, hexanetriol, erythritol, pentaerythritol, diglycerine, sorbitan, adonitol, arabitol, allitol, talitol, sorbitol or mannitol.
Claim 14
Dependent Claim
19 words
The composition as claimed in claim 1 wherein the aliphatic higher monohydric alcohols have 12 to 30 carbon atoms.
Claim 15
Dependent Claim
25 words
The composition as claimed in claim 1 wherein the aliphatic higher monohydric alcohol is myristyl alcohol, cetyl alcohol, stearyl alcohol, arachidic alcohol or behenyl alcohol.
Claim 16
Dependent Claim
51 words
The composition as claimed in claim 1 wherein the aliphatic saturated monovalent carboxylic acid has 10 to 24 carbon atoms and the polyhydric alcohol is ethylene glycol, propylene glycol, ethylethylene glycol, trimethylene glycol, tetramethylene glycol, propanetriol, methylpropanetriol, butanetriol, pentanetriol, hexanetriol, erythritol, pentaerythritol, diglycerine, sorbitan, adonitol, arabitol, allitol, talitol, sorbitol or mannitol.
References Cited (Backward Citations)
US4306057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |