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:
Jul. 04, 1995
Filed:
Sep. 23, 1993
Mianxue Wu, Worcester, MA (US);
Norton Company, Worcester, MA (US);
Abstract
The invention is a process of manufacturing an abrasive article with the steps of forming an abrasive article in the unfired state comprising an abrasive, a vitreous bond and a polymer resin wherein the polymer resin has an elastic modulus greater than about 2.0.times.10.sup.9 Pa, a weight gain due to moisture absorption when measured after exposure to a 90.degree. C. temperature and 85% relative humidity for 10 hours of less than about 2 wt % and a weight loss on firing in a nitrogen atmosphere at 5.degree. C. per minute to 550.degree. C. of greater than about 95 wt %, and firing the abrasive article thereby decomposing the polymer resin and creating pores in the abrasive article. The invention further includes the abrasive article formed in the unfired state by the above process.