Epoxy end-capped aromatic polyimides

Patent

Description

Epoxidized aromatic polyimides and processes for their preparation are provided. The epoxidized polyimides are prepared by reacting a diamine of the formula ##SPC1## Wherein Ar is a divalent aromatic organic radical, Ar’ is a tetravalent aromatic organic radical and n is a positive integer of at least 1, With 1 to 4 moles of an epoxy compound (such as epichlorohydrin) of the formula ##SPC2## Wherein X is halogen and R’ is hydrogen or a hydrocarbon radical of 1 to 6 atoms. The reaction is conducted in the presence of an organic or inorganic base at a temperature between ambient and about 100.degree.C. The epoxidized polyimides can be cross-linked by melt reaction, self-reaction or catalysis depending upon the number of epoxy end-groups.

Attributes

Attribute NameValues
Title
  • Epoxy end-capped aromatic polyimides

Patent Number
  • US 3886119 B2

USPTO Link
Inventor
  • Gaetano Francis D'Alelio

Inventor From Local Institution
  • Gaetano Frank D'Alelio

Other Application
  • 05/497,491

Claims
  • 9

Classification (US Patent)
  • 528/87; 523/1; 524/600; 524/612; 524/879; 525/420; 525/425; 525/428; 525/429; 525/430; 528/108; 528/109; 528/183; 528/222; 528/229; 528/26; 528/28; 528/351; 528/352; 528/353; 528/96;

Cooperative Patent Classification codes
  • C08G 59/10 (20130101); C08G 73/101 (20130101); C08G 73/1071 (20130101); C08G 73/1067 (20130101); C08G 73/1064 (20130101)

International Patent Classification codes
  • C08G 73/00 (20060101); C08G 73/10 (20060101); C08G 59/00 (20060101); C08G 59/10 (20060101); C08g 020/32 ()

Language
  • eng

Date Issued
  • 1975-05-27

Publisher
  • United States Patent and Trademark Office

Assignee
  • University of Notre Dame Du Lac

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