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:
May. 16, 1989
Filed:
Feb. 22, 1988
Applicant:
Inventors:
Nikhil C Trivedi, Easton, PA (US);
John D Mackenzie, Los Angeles, CA (US);
Assignee:
Pfizer Inc., New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 35 ; 501 38 ; 501 72 ; 106 99 ; 428375 ; 428392 ; 65-341 ; 65-343 ; 65-344 ;
Abstract
A continuous, monofilamentous, alkali-resistant glass fiber especially useful in cementitious products is conveniently prepared from a glass-forming composition comprising a magnesium silicate such as talc and a calcium carbonate such as limestone. Either the fiber itself or a strand comprising a plurality of the fiber is advantageously coated with an alkali-resistant polymer such as butadiene-styrene to provide additional alkali resistance.