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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.:

US 12728570 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Jul. 11, 2023

Method for making foamed shoe material

Applicant:

Ccilu International Inc., Taichung City, TW;

Inventors:

Chih-Jen Hsu, Taichung City, TW;

Chia-Ming Hsu, Taichung City, TW;

Yi-Ju Huang, Taichung City, TW;

Assignee:

CCILU International Inc., Taichung City, TW;

Attorney:

Wang Law Firm, Inc.

Primary Examiner:

Christopher M Rodd

Int. Cl.
CPC ...
B29C 41/00 (2006.01); B29B 9/04 (2006.01); B29B 9/12 (2006.01); B29K 23/00 (2006.01); B29K 67/00 (2006.01); B29K 105/26 (2006.01); B29L 31/50 (2006.01);
U.S. Cl.
CPC ...
B29C 41/003 (2013.01); B29B 9/04 (2013.01); B29B 9/12 (2013.01); B29K 2023/083 (2013.01); B29K 2067/003 (2013.01); B29K 2105/26 (2013.01); B29L 2031/504 (2013.01);
Abstract

A method for making foamed shoe materials includes mixing r-PET and EVA with a compatibilizer for melt modification, a new polymer alloy is formed. The polymer alloy is then extruded into strips with an screw extruder under a temperature of 160° C. to 245° C. and an average shear rate of 100/sec to 300/sec, and at an extrusion rate of 100 kg/hr to 250 kg/hr. Simultaneously, the temperature of the screw in the extrusion process is controlled to rise from 160° C. to 245° C., then decrease to less than 240° C., so as to produce composite material masterbatches with good compatibility between recycled PET and EVA, which are used to produce foamed shoe materials, thus achieving the purpose of reusing recycled PET, reducing carbon emissions, and protecting the environment. Furthermore, it reduces the demand for fresh PET materials, thereby reducing the demand for petrochemical raw materials.

Find Patent Forward Citations

Hsu, Chih-Jen. (2026). Method for making foamed shoe material (U.S. Patent No. 12728570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12728570

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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