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. 19, 1983
Filed:
Dec. 24, 1981
Applicant:
Inventors:
Chester S Temple, McKees Rocks, PA (US);
Ed C Hsu, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524262 ; 524276 ; 524487 ; 524488 ; 524489 ; 524586 ; 524836 ; 428378 ; 428391 ;
Abstract
Sized glass fiber strands are provided that have improved slip/flow characteristics. This improved characteristic is achieved by sizing glass fibers with an aqueous sizing composition having one or more nonstarch film forming polymers, one or more coupling agents, one or more lubricants or a mixture thereof, polyethylene-containing polymer with limited branching and water. The aqueous sizing composition can also have a wax having a melting point greater than 50.degree. C. where the total amount of the polyethylene polymer and wax is not greater than about 15 weight percent of the aqueous sizing composition.