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Miscible polyimide blends

一种聚酰亚胺树脂、共混物的技术，应用在相容共混物领域

Active Publication Date: 2007-06-06
SHPP GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite years of experimentation, it is extremely difficult to predict a priori the compatibility of polymers

Method used

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  • Miscible polyimide blends
  • Miscible polyimide blends
  • Miscible polyimide blends

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] In one embodiment, the composition contains 1-99% of one or more resorcinol-based polyarylate resins (based on the weight of the entire mixture) and 99-1 wt% of one or more polyimides resin. In another embodiment, the composition contains 1-99% of one or more resorcinol-based polyester carbonate resins (based on the weight of the entire mixture) and 99-1% by weight of one or more polyamide resins. imide resin.

[0009] The resorcinol-based polyarylate resin should contain at least about 50 mole percent units derived from the reaction product of resorcinol or a functionalized resorcinol with an aryl dicarboxylic acid or suitable for the formation of aryl esters The reaction products of dicarboxylic acid derivatives of the bond, such as carboxylic acid halides, carboxylic acid esters and carboxylate salts.

[0010] In another embodiment, the composition has a percent light transmittance of greater than or equal to about 70% and a glass transition temperature (Tg) of gre...

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PUM

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Abstract

Compositions made from a polyarylate or polyester carbonate containing greater than about 50 mole % resorcinol based ester linkages give miscible blends with polyimide resins. The blends of polyimides and resorcinol based polyesters or resorcinol based polyester carbonates also give miscible blends when combined with other aryl alky polyester resins.

Description

technical field [0001] The present invention relates to miscible blends of polyimide and resorcinol-based polyester or resorcinol-based polyester carbonate polymers having improved flow and impact strength as well as high heat resistance and transparency. Background technique [0002] Blending polymers to prepare novel compositions is known. However, it has been difficult to find polymer pairs that confer useful mechanical properties. For large polymer molecules, unfavorable free energies of mixing often result in blends in which the two polymers separate from each other and have little or no affinity. These blends have poor mechanical properties and are not very useful for making molded articles or films. In some very limited instances, two polymers exhibit sufficient affinity for the two polymers to bond sufficiently to obtain a blend with good mechanical properties. In rare instances, the affinity of the polymers is sufficient to overcome the unfavorable thermodynamic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L79/08C08K5/00C08K5/5313C08K5/5333C08L67/02C08L67/03
CPCC08K5/5313C08K5/0066C08L79/08C08K5/5333C08L67/02C08L67/03C08L69/005B29B7/007B29B7/86B29B7/726C08L2666/20C08L2666/18C08L69/00
Inventor R·R·加卢西M·A·桑纳P·D·赛伯特
Owner SHPP GLOBAL TECH BV
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