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.
Patent No.:
Date of Patent:
Feb. 10, 1987
Filed:
Aug. 23, 1984
Applicant:
Inventors:
Marcel Ropars, Rocquencourt, FR;
Bertrand Bloch, Paris, FR;
Assignees:
Societe Nationale des Poudres et Explosifs, Paris, FR;
Office National d'Etudes et de Recherches Aerospatiales, Chatillon sous Bagneaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
428367 ; 428524 ; 524 99 ; 524104 ; 524110 ; 524111 ; 524205 ; 524259 ; 524323 ; 524337 ; 524597 ; 525503 ; 525504 ; 528153 ; 528155 ; 528163 ; 528232 ; 528242 ; 528245 ;
Abstract
The object of the present invention are new thermoset resins having quickened curing, a process for their preparation, and their applications. The resins according to the invention consist, at least in part, of the products resulting from the polycondensation of one or more pyridine derivatives containing at least two methyl groups in the 2, 4 or 6 positions, with one or more aromatic dialdehydes, and the addition of one or more additives consisting of phenol compounds. These resins are used to the fabrication of composite materials.