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:
Jan. 27, 2004
Filed:
Sep. 12, 2002
Applicant:
Inventors:
Christopher J. Carter, Nuneaton, GB;
Richard J. Darwood, Market Harborough, GB;
Roy Stubbs, Nuneaton, GB;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/00 ; B24D 3/02 ; B24D 3/28 ;
U.S. Cl.
CPC ...
B24D 3/00 ; B24D 3/02 ; B24D 3/28 ;
Abstract
A binder for abrasive products, coated abrasive articles and a method of making the same comprising a urea formaldehyde resin precursor cured in the presence of a sole catalyst which consists essentially of at least one salt of an acid with a diamine of the formula H N—R—NH wherein R is an alkylene group of 3 to 10 carbon atoms, and the acid is selected from the group consisting of hydrochloric, citric, nitric, sulphuric, acetic, phosphoric and combinations thereof.