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:
Jun. 06, 1978
Filed:
Mar. 10, 1976
Applicant:
Inventor:
Yoshio Midorikawa, Tokyo, JA;
Assignee:
Glasrock Products, Inc., Fairburn, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K / ; D04H / ;
U.S. Cl.
CPC ...
428295 ; 156180 ; 156296 ; 156305 ; 156306 ; 264128 ; 401198 ; 427244 ; 428297 ; 428304 ; 428394 ;
Abstract
A fibre bundle is first formed of entangled fibres by use of a tapered mold of an extruder. Then, the fibre bundle thus formed is dipped into an urethane prepolymer to fill the spaces among fibres by impregnating it with said prepolymer. After removal from the liquid prepolymer, it is left for a period of time to allow the reactions among the constituents in the prepolymer and the volatilization of solvent generate gases to form gas escape holes or capillary passages along the length of the fibre bundle.