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:
Aug. 03, 2004
Filed:
Aug. 06, 2002
Applicant:
Inventors:
Ryo Nishino, Kanagawa-ken, JP;
Hirozou Uejou, Kanagawa-ken, JP;
Assignee:
Piolax Inc., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/100 ;
U.S. Cl.
CPC ...
F16L 1/100 ;
Abstract
Nylon 6 having viscosity number within a range of 170-340 in a measurement of a 98% concentrated sulfuric acid solution at 25° C. and a plasticizer are mixed in advance, and then the mixture is mixed with Nylon 66 having viscosity number within a range of 240-370 in the measurement, thus a resin composite is prepared. Then, the resin composite is formed into a tube by extrusion molding. The resin tube thus obtained is used as a resin tube for automotive piping, such as vapor fuel piping to be incorporated into a fuel tank or as oil piping to be incorporated into an engine room.