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:
Oct. 12, 1999
Filed:
Jan. 29, 1997
Applicant:
Inventors:
Joseph Rach, Newark, DE (US);
Douglas Leach, Hockessin, DE (US);
Assignee:
Mac Dermid, Incorporated, Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
438692 ; 216 89 ; 522 96 ; 451526 ; 451 41 ;
Abstract
Particular polyurethane photopolymers are disclosed as materials of construction in producing improved polishing pads. The polyurethane photopolymers are formed from a polyurethane prepolymer prepared from the reaction products of a first reactant selected from the group consisting of polyesters, polyethers, polybutadienes and mixtures of the foregoing with diisocyanates, further reacted with acrylates and/or methacrylates.