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. 07, 2013
Filed:
Oct. 14, 2011
Shohei Tsuchida, Tochigi, JP;
Tomoo Tokiwa, Tochigi, JP;
Masato Naito, Tochigi, JP;
JSP Corporation, , JP;
Abstract
A hollow foamed blow-molded article has a polypropylene-based resin foam layer, wherein the polypropylene-based resin foam layer has an equilibrium compliance Jeof 2.0×10Paor more and a swell S of 2.5 or less, wherein the foam layer has an apparent density 'd' of 0.20 to 0.65 g/cmand a ratio a/c of an average cell diameter 'a' in the thickness direction of the molded article to an average cell diameter “c” in the longitudinal direction of the molded article of 0.1 to 0.5. The hollow foamed blow-molded article has an average molded article thickness T of 1 to 5 mm and a variation coefficient Cv of the molded article thickness of 50% or less.