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. 18, 2014
Filed:
Feb. 01, 2012
Kenichi Senda, Settsu, JP;
Kenichi Senda, Settsu, JP;
Kaneka Corporation, Osaka-Shi, JP;
Abstract
Polypropylene resin expanded particles comprises a polypropylene resin as a base material resin, the polypropylene resin having at least three melting peaks on a DSC curve for a second temperature rise measured at a heating rate of 10 g/min with use of a heat flux differential scanning calorimeter (DSC), the at least three melting peaks including (i) a lowest temperature melting peak of 100° C. to 130° C. and (ii) a highest temperature melting peak of 140° C. to 160° C., the polypropylene resin having a resin DSC ratio change rate of 0.5%/° C. to 3.0%/° C., the expanded particles having two melting peaks in a DSC measurement made at a first temperature rise at the heating rate of 10 g/min, the two melting peaks including, (i) on a lower temperature side, a melting peak temperature of 100° C. to 130° C. and, (ii) on a higher temperature side, a melting peak temperature of 140° C. to 160° C.