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:
Aug. 12, 2003
Filed:
Nov. 06, 2001
Applicant:
Inventors:
Raj B. Durairaj, Monroeville, PA (US);
Mark A. Lawrence, New Kensington, PA (US);
Assignee:
Indspec Chemical Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 7/112 ;
U.S. Cl.
CPC ...
C08L 7/112 ;
Abstract
Methods of making low molecular weight methylene acceptors are provided. The methylene acceptors are prepared by reacting a polyhydric phenol with an aromatic olefinic compound in the presence of an acid catalyst, and then further reacting the products of the first reaction with an N-methylol lactam derivative. Derivatives made by the above method, as well as rubber compositions using these derivatives are also provided.