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Copolyetherimides

A technology of copolyetherimide and alkylene, which is applied in the field of copolyetherimide and can solve the problems of non-disclosure

Inactive Publication Date: 2006-11-22
SABIC INNOVATIVE PLASTICS IP 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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  • Copolyetherimides
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] 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 water was present, and 41,680 parts of o-dichlorobenzene remained, corresponding to a copolyetherimide level of 30% in the solvent.

[0097] 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 of bisphenol A dis...

Embodiment 2

[0099] 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.

Embodiment 3

[0101] 13,767 parts of 3,3'- and 3,4'-disubstituted [N-phthalimidophenyl] ethers having a ratio of 3-bonds to 4-bonds of about 98:2 were used The mixture of 643 parts of monochlorophthalimide of the same monomer and 7,070 parts of bisphenol A disodium salt, the process of Example 1 was repeated. The resulting copolyetherimide had a Mw of 54,100 and a Mn of 20,800.

[0102] The properties of the products of Examples 1, 2 and 3 are listed in the table below. Also included in the table are the properties of the commercially available polyetherimides Control 1 and 2 having the properties corresponding to those obtained from the disodium salt of bisphenol A with 4 parts meta-bis(3-chloro The structure of the preparation obtained from a mixture of -N-phthalimido)benzene and 96 parts of m-bis(4-chloro-N-phthalimido)benzene. The viscosity value is measured at 380°C, 1000S-1.

[0103] Example

1

2

3

Control 1

Control 2

3- and 4-isomers

bo...

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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

Background of the invention [0001] The present invention relates to copolyetherimides, and more particularly to a new copolyetherimide characterized by such beneficial properties as good ductility, good melt flow and high heat resistance. [0002] 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(chlorophthalimide) such as 1,3-bis[N-(4-chlorophthalimide) as disclosed in US Pat. Phthalimide)benzene] is typically prepared by reaction in the presence of a phase transfer catalyst. The latter method has gained popularity in recent years due to its relative simplicity (eg, minimal reactio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/00C08G65/40C08G73/12
CPCC08G73/123C08G73/124C08G73/125C08G73/12C08G73/00C08G73/18
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 INNOVATIVE PLASTICS IP BV