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:
Nov. 23, 1993
Filed:
Oct. 23, 1991
Applicant:
Inventors:
Herman J Geursen, Rozendaal, NL;
Stephanus Willemsen, Rheden, NL;
Assignee:
Akzo N.V., Arnhem, NL;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
4273899 ; 428395 ; 174 / ; 174107 ;
Abstract
An aramid yarn, preferably poly(p-phenylene terephthalamide), is coated with a water swellable superabsorbent material. The swelling value of the yarn is at least 60. The superabsorbent provides water blocking capability to the yarn, so that it is suitable for use as a strength member, for example, in water tight optical communication cables. The yarn is made by successively treating an aramid yarn with a water-in-oil emulsion, a superabsorbent material being present in the water phase of the emulsion, and removing the liquid components from the treated yarn by evaporation.