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. 05, 1981
Filed:
Jan. 10, 1980
Applicant:
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138177 ; 138118 ; 1283 / ; 428 36 ; 428216 ; 428913 ; 204165 ; 264D / ;
Abstract
Polyvinyl chloride tube having a crosslinked thin layer of about 0.1 to about 1 micron in thickness at least on its inner surface, thereby substantially reducing the migration and volatilization of plasticizers and other additives from the polymeric materials into the fluid in said tube. The tube of this invention is especially useful for medical use.