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:
Sep. 13, 1983
Filed:
May. 03, 1982
Applicant:
Inventors:
Paul Taylor, No. Andover, MA (US);
Michael Gulla, Sherborn, MA (US);
Assignee:
Shipley Company Inc., Newton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528153 ; 528155 ; 528163 ;
Abstract
Novel resins are disclosed that are the reaction products of an aldehyde and an aromatic alcohol mixture of naphthol, preferably 1-naphthol, and a phenol. The molar ratio of the naphthol to the phenol in the reaction mixture can vary from about 20 to 1 to 1 to 20. The resins are formed by condensing the aldehyde with the aromatic alcohol mixture in the presence of an acid catalyst where the molar ratio of the aromatic alcohol to aldehyde is less than 1. The resins of the invention are characterized by melt temperature higher than the melt temperatures of conventional novolak resins.