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Copolyetherimides

A kind of technology of copolyetherimide and alkylene, applied in the field of copolyetherimide, can solve the problems such as no disclosure

Inactive Publication Date: 2014-01-08
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no disclosure of copolyetherimides of ODA and bisphenols or copolyetherimides derived from 3,4'-bis(nitrophthalimide)

Method used

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Examples

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preparation example Construction

[0239] The preparation methods of polyetherimides are described in many publications and patents, and any suitable method can be used to prepare the copolyetherimides of the present invention. Illustrative methods of preparing polyetherimides are those disclosed in, for example, US Serial Nos. 3,847,867, 3,814,869, 3,850,885, 3,852,242, 3,855,178, 3,983,093, and 5,830,974.

[0240]One suitable method of preparing the copolyetherimide is by reacting at least one diamino compound with a mixture comprising at least one dianhydride, optionally in the presence of one or more chain terminating agents. A suitable method of preparing copolyetherimides in certain embodiments is by reacting at least one diamino compound with a mixture comprising at least two dianhydrides, optionally in the presence of one or more chain terminating agents. Suitable chain terminating agents in some embodiments are monoanhydrides, including but not limited to phthalic anhydride. Suitable dianhydrides can ...

Embodiment 1

[0267] Preparation of 3,3'-, 3,4'- and 4,4'-Dichloro[N - Phthalimidophenyl] ether mixtures. The synthesized ether mixture has a ratio of 3-bonds to 4-bonds of about 3:1. A solution of 13,442 parts of the ether mixture and 947.2 parts of the corresponding monochlorophthalimide mixture in o-dichlorobenzene was distilled from water until less than 15 ppm water was present. 7102 parts of a slurry of bisphenol A disodium salt in ortho-dichlorobenzene, calculated to be 3% less than stoichiometric, were added. Distillation was continued until less than 10 ppm of water was present, and 41,680 parts of o-dichlorobenzene remained, corresponding to a copolyetherimide level of 30% in the solvent.

[0268] A 20% solution of hexaethylguanidinium chloride in dichlorobenzene (314 parts) was added in portions, initially 50%, followed by two 25% portions after 15 and 30 minutes. The exothermic reaction caused the mixture to be heated to reflux temperature again. Further add a small portion ...

Embodiment 2

[0270] The procedure of Example 1 was repeated using 14,422 parts of the ether mixture, 473.5 parts of monochlorophthalimide of the same monomer and 7,321 parts of bisphenol A disodium salt. The resulting copolyetherimide had a Mw of 62,400 and a Mn of 24,200.

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Abstract

Copolyetherimides comprise phthalimide structural units comprising both 3- and 4-linkages, wherein the designations 3-linkage and 4-linkage refer to the isomeric positions on the phthalimide ring in the totality of phthalimide-comprising structural units in the copolymer. The products have excellent properties, including high glass transition and heat distortion temperatures, high ductility and good melt flow properties, and low polydispersity.

Description

[0001] This application is based on a patent with an application date of July 1, 2004, a priority date of August 25, 2003, an application number of 200480030337.1 (PCT / US2004 / 021183), and an invention name of "copolyetherimide" Divisional application of the application. technical field [0002] The present invention relates to copolyetherimides, and more particularly to a novel copolyetherimide characterized by such beneficial properties as good ductility, good melt flow and high heat resistance. Background technique [0003] Polyetherimide is a well-known commercially available polymer with excellent chemical resistance, high temperature stability, and electrical and mechanical properties. An important subgenus of polyetherimides consists of diamines such as m-phenylenediamine and dianhydrides such as 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane polymers produced by the reaction. Such polyetherimides can also be synthesized by bisphenol alkali metal salts and bis(chloro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/10C08G73/12
CPCC08G73/124C08G73/123C08G73/125C08G73/12C08G73/00C08G73/18
Inventor 丹尼尔.J.布鲁内尔哈瓦.Y.阿卡法里德.F.库里威廉.D.理查兹
Owner SABIC GLOBAL TECH BV
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