The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 02, 1980

Filed:

Jan. 11, 1979
Applicant:
Inventors:

Toshiaki Ishimaru, Hitachi, JP;

Hiroshi Nishizawa, Kitaibaraki, JP;

Yuichi Osada, Hitachi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08L / ;
U.S. Cl.
CPC ...
525440 ; 428423 ; 525419 ; 525444 ; 528288 ;
Abstract

Polyesteramides produced by reacting in the first step an aromatic monoalkyl dicarboxylate with an aromatic diisocyanate in the presence or absence of one or more monoalkyl dicarboxylates and/or diisocyanates to produce an aromatic dialkyl diamidedicarboxylate of the formula: ##STR1## wherein R.sub.1 is alkyl; and R.sub.2 is a divalent aromatic residue, or a mixture of dialkyl diamidedicarboxylates containing the compound of the formula (II), and reacting in the second step the compound of the formula (II) or the mixture containing the compound of the formula (II) with one member selected from the group consisting of


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