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:
Oct. 31, 1980
Applicant:
Inventor:
Hal C Morris, Warminster, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D01C / ; D06L / ; D06L / ; B65H / ;
U.S. Cl.
CPC ...
8138 ; 524561 ; 524562 ; 28166 ; 28168 ; 4273899 ; 428224 ; 428395 ;
Abstract
Taught is a method of sizing polyester yarn for weaving comprising the steps of applying thereto a latex having an acid pH and of a free radical initiated vinyl polymer having a weight average molecular weight of from about 300,000 to about 2,500,000, said polymer in dried film form being hydrophobic and not redispersible in a solution at a pH of from about 2 to 7 but redispersible by an aqueous alkaline medium, said polymer being prepared from monomers consisting essentially of by weight, 45-65% butyl acrylate a total of 28-45% styrene and/or methyl methacrylate and a total of 8-14% acrylic acid and/or methacrylic acid, and drying the yarn.