Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polyamide-imide polymer and method for producing same

A polymer and polyamide technology, applied in the field of polyamide-imide polymers, can solve problems such as danger, color, and use that affect the mechanical properties of polymers, and achieve the effect of improving solubility and low yellowness index

Pending Publication Date: 2022-04-15
SOLVAY SPECIALTY POLYMERS USA LLC
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, some solvents are toxic and thus dangerous to humans and the environment
Third, polymers often contain residual amounts of solvents, which can sometimes affect the mechanical properties of the polymer or its use in certain applications, and in other cases, the solvent can cause color problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyamide-imide polymer and method for producing same
  • Polyamide-imide polymer and method for producing same
  • Polyamide-imide polymer and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The object of the present invention is a process for the preparation of polyamide-imide (PAI) polymers by melt polymerizing at least one polyamide-imide (PAI) polymer comprising three carboxyl groups selected from the group consisting of carboxylic acid, anhydride and ester functional groups Part of the cycloaliphatic acid component and at least one diamine component, wherein the process includes the step of maintaining the reaction mixture in a homogeneous liquid state during polymerization at a temperature of at least 200°C.

[0022] The present invention also provides a colorless and transparent PAI polymer with low branching and good mechanical properties. Thus, such PAI polymers can be processed according to standard polymer processing techniques such as extrusion and injection molding. It can be converted into films and other articles.

[0023] In this specification, unless otherwise specified, the following terms have the following meanings.

[0024] The term "...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for preparing a polyamide-imide (PAI) polymer by melt polymerization of at least one alicyclic acid component comprising three carboxyl moieties selected from the group consisting of carboxylic acids, anhydrides and ester functions and at least one diamine component, the process comprises the step of maintaining the reaction mixture in a homogeneous liquid state during polymerization at a temperature of at least 200 DEG C.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 897,473, filed September 9, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to polyamide-imide (PAI) polymers and a method for their manufacture. Background technique [0004] Polyamide-imide (PAI) is a high-performance polymer with excellent thermal, chemical and mechanical properties, and is therefore suitable for applications requiring high mechanical strength in combination with high temperature resistance, corrosion resistance and wear resistance, Applications with high demands on stiffness and low friction. 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. Therefor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/14
CPCC08G73/14C08G73/1003C08G73/1007
Inventor J·弗洛雷斯S·乔尔
Owner SOLVAY SPECIALTY POLYMERS USA LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com