Title: Polymerization products of vinyl-terminated polyimide derivatives

Abstract: Novel, unsaturated polyimide-polyester polymerization products and processes for their preparation are disclosed herein. The polyimide-esters from which the polymerization products are derived are derivatives of anhydride-terminated aromatic polyimides, from which they are prepared by esterification to provide unsaturated ester groups having a terminal --CH.dbd.CH.sub.2 group. These new compositions are crosslinked, insoluble, infusible polymers produced without by-product formation.

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Inventors: D'Alelio, Gaetano F. (South Bend, IN, US)

Application Number: 927813
Filing Date: 1978-07-25
Publication_date: 1979-09-18
Assignee: Plastics Engineering Company (Sheboygan, WI)
Primary Class(es): 525/426 428/435, 428/443, 522/164, 522/167, 525/925, 526/259, 526/262, 528/26, 528/125, 528/170, 528/185, 528/188, 528/229, 528/321, 528/322, 528/352, 528/353
Other Classes:
US Patent Ref:

3879349	Apr, 1975	Bilow et al.	528/170.
3897395	Jul, 1975	D' Alelio	528/170.
3998786	Dec, 1976	D'Alelio	528/170.
4060515	Nov, 1977	D'Alelio	528/170.

Other Refs:
Primary Examiner: Lee, Lester L.
Assistant Examiner:
Attorney: Monacelli; Walter J.