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Polyamide-imide polymer and method for producing same

A polymer and imide technology, which is applied in the field of polyamide-imide polymer and its manufacturing, can solve the problems of difficult melt processing of polymers, and achieve good thermal and mechanical properties, low yellowness index, high glass The effect of transition temperature

Pending Publication Date: 2022-04-15
SOLVAY SPECIALTY POLYMERS USA LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the polyamide-imide shows improved solubility in several solvents, it has a glass transition temperature (Tg) above 300°C, which makes the polymer difficult to melt process

Method used

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  • Polyamide-imide polymer and method for producing same
  • Polyamide-imide polymer and method for producing same
  • Polyamide-imide polymer and method for producing same

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Embodiment Construction

[0034] In this specification, unless otherwise specified, the following terms have the following meanings.

[0035] The term "cycloaliphatic moiety" means an organic group containing at least one aliphatic ring and no aromatic rings. The cycloaliphatic moiety may be substituted by one or more linear or branched alkyl or alkoxy groups and / or halogen atoms, and / or may contain one or more heteroatoms like nitrogen, oxygen and sulfur in the ring.

[0036] The term "alkyl" and derivative terms such as "alkoxy" include within their scope straight chain, branched chain and cyclic moieties. Examples of alkyl groups are methyl, ethyl, 1-methylethyl, propyl, 1,1-dimethylethyl and cyclopropyl. Unless expressly indicated otherwise, each alkyl group may be unsubstituted or substituted with one or more substituents selected from, but not limited to, hydroxyl, sulfo, C 1 -C 6 Alkoxy, C 1 -C 6 Alkylthio, provided that these substituents are sterically compatible and satisfy the rules for...

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Abstract

The present invention relates to a polyamide-imide (PAI) polymer comprising repeating units according to any one of formulae (I) and (II) wherein: Z is an alicyclic moiety selected from the group consisting of: a substituted or unsubstituted monocyclic or polycyclic group having 5 to 50 carbon atoms, preferably 6 to 18 carbon atoms; r is a divalent alicyclic moiety selected from the group consisting of: a substituted or unsubstituted monocyclic or polycyclic group having 5 to 50 carbon atoms, preferably 6 to 20 carbon atoms; m and n independently of each other are integers from 0 to 10.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 897,476, filed September 9, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a polyamide-imide (PAI) polymer and a manufacturing method thereof. Background technique [0004] Polyamide-imide (PAI) is a high-performance polymer with excellent thermal, chemical and mechanical properties and is therefore suitable for high requirements requiring high mechanical strength, stiffness and low friction as well as high temperature resistance, corrosion resistance and wear resistance Applications. For these reasons, they are widely used in the aerospace and automotive industries, insulation materials, coatings, solvent-resistant films, and electronic devices. [0005] PAI is a polymer containing both amide and imide functional groups in the backbone. Therefore, PAI polymers te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/14C08L79/08
CPCC08G73/14C08G73/1003
Inventor J·弗洛雷斯S·乔尔
Owner SOLVAY SPECIALTY POLYMERS USA LLC
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