GB984981A - Linear thermoplastic polycarbonates - Google Patents
Linear thermoplastic polycarbonatesInfo
- Publication number
- GB984981A GB984981A GB9715/61A GB971561A GB984981A GB 984981 A GB984981 A GB 984981A GB 9715/61 A GB9715/61 A GB 9715/61A GB 971561 A GB971561 A GB 971561A GB 984981 A GB984981 A GB 984981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bisphenol
- dichlorocarbonic
- acid ester
- groups
- bis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/22—General preparatory processes using carbonyl halides
- C08G64/24—General preparatory processes using carbonyl halides and phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/04—Aromatic polycarbonates
- C08G64/06—Aromatic polycarbonates not containing aliphatic unsaturation
- C08G64/14—Aromatic polycarbonates not containing aliphatic unsaturation containing a chain-terminating or -crosslinking agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/30—General preparatory processes using carbonates
- C08G64/307—General preparatory processes using carbonates and phenols
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
In the manufacture of linear polycarbonates by reacting an aqueous alkaline solution or suspension of a dihydric phenol with phosgene or a dichlorocarbonic acid ester of a dihydric phenol in the presence of a water-immiscible organic solvent for the polycarbonate formed, there is added as a catalyst a quarternary phosphonium compound, a quaternary arsonium compound or a tertiary sulphonium compound, either as a free base or as a salt thereof. The reaction mixture may also include an acid chloride of an aliphatic, cycloaliphatic or aromatic dicarboxylic acid or a dichlorocarbonic acid ester of an aliphatic or cycloaliphatic glycol. The dihydric phenol may be a dihydroxy benzene or naphthalene or it may be a bis-phenol in which the hydrogen benzene radicals are connected together by one or more groups selected from alkylene, alkylidene, cycloaliphatic, tertiary amino, carbonyl, sulphide, sulphoxide, sulphone or ether radicals. The alkylene is alkylidene, groups may be substituted by hydrocarbon or halogenated hydrocarbon groups and the hydroxyaromatic groups may be substituted by hydrocarbon, hydrocarbonoxy, halogenated hydrocarbon, halogenated hydrocarbonoxy, nitro or halo groups. In examples, in which the dihydric phenol is dissolved in aqueous sodium hydroxide solution and the organic solvent used is methylene chloride, polycarbonates are made by reacting (1)-(7), (10)-(15), (22)-(25), (27) and (28), bisphenol-A and the dichlorocarbonic acid ester of bisphenol-A; (8), (9) and (26) bisphenol-A and and phosgene; (16) and (17) 2,2-bis-(4-hydroxy-3,5-dichlorophenyl) propane and the dichlorocarbonic acid ester of bisphenol-A; (18) and (19) bis-(4-hydroxy-3-methylphenyl) methane and the dichlorocarbonic acid ester of bisphenol-A; (20)-(21) 1,1-bis-(4-hydroxyphenol)-2,2,2-trichloroethane and the dichlorocarbonic ester of bisphenol-A. The polycarbonates are suitable for the manufacture of fibres and films.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1960G0029246 DE1162079B (en) | 1960-03-16 | 1960-03-16 | Process for the production of thermoplastic high molecular weight polycarbonates. |
DE1960G0029498 DE1141789B (en) | 1960-04-21 | 1960-04-21 | Process for the production of high molecular weight polycarbonates. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB984981A true GB984981A (en) | 1965-03-03 |
Family
ID=25978248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9715/61A Expired GB984981A (en) | 1960-03-16 | 1961-03-16 | Linear thermoplastic polycarbonates |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE601392A (en) |
GB (1) | GB984981A (en) |
-
1961
- 1961-03-16 GB GB9715/61A patent/GB984981A/en not_active Expired
- 1961-03-16 BE BE601392A patent/BE601392A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE601392A (en) | 1961-09-18 |
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