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.

Date of Patent:
Jul. 10, 2018

Filed:

Sep. 05, 2017
Applicant:

Kaneka Corporation, Osaka, JP;

Inventors:

Toru Yoshida, Osaka, JP;

Shintaro Miura, Osaka, JP;

Assignee:

Kaneka Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/16 (2006.01); C08J 9/20 (2006.01); C08J 9/232 (2006.01);
U.S. Cl.
CPC ...
C08J 9/16 (2013.01); C08J 2323/14 (2013.01); C08J 2423/14 (2013.01);
Abstract

Expanded polypropylene resin particles include a polypropylene resin as a base material resin, wherein the polypropylene resin has a flexural modulus of 750 MPa to 1100 MPa. The flexural modulus and a melting point of the expanded polypropylene resin particles satisfy Expression (1): [Flexural modulus (MPa)]<31.19×[Melting point (° C.)]−3500, wherein the melting point of the expanded polypropylene resin particles is a melting point of 141.5° C. to 150.0° C. in a second differential scanning calorimetry (DSC) curve of a second temperature increase, the second DSC curve being obtained when the expanded polypropylene resin particles are heated from 40° C. to 220° C. at a temperature increase rate of 10° C./min in a first temperature increase, then cooled from 220° C. to 40° C. at a temperature decrease rate of 10° C./min, and heated again from 40° C. to 220° C. at a temperature increase rate of 10° C./min in the second temperature increase.


Find Patent Forward Citations

Yoshida, Toru. (2018). Polypropylene resin foamed particles and method for producing same (U.S. Patent No. 10017619). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10017619

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