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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 12503789 B1

PDFFull Text
Date of Patent:
Dec. 23, 2025

Filed:

Dec. 10, 2021

Die-casting metal part-polymer resin composite and method for preparing same

Applicant:

Plastal Co., Ltd., Ansan-si, KR;

Inventors:

Mu Chang Sung, Incheon, KR;

Jae Ik Kim, Seoul, KR;

Jae Hwa Kim, Seoul, KR;

Sung Ho Hong, Incheon, KR;

Assignee:

PLASTAL CO., LTD., Ansan-si, KR;

Attorneys:

Dinsmore & Shohl LLP

Yongsok Choi, Esq.

Primary Examiner:

Jacob T Minskey

Assistant Examiner:

Virak undefined Nguon

Int. Cl.
CPC ...
B29C 45/14 (2006.01); B29K 705/02 (2006.01); B29L 31/30 (2006.01); B29L 31/34 (2006.01); C25F 3/02 (2006.01); C23F 1/14 (2006.01);
U.S. Cl.
CPC ...
C25F 3/02 (2013.01); B29C 45/14 (2013.01); B29C 2045/14868 (2013.01); B29K 2705/02 (2013.01); B29L 2031/3002 (2013.01); B29L 2031/34 (2013.01); C23F 1/14 (2013.01);
Abstract

The present invention relates to a metal-polymer resin composite in which a polymer resin is directly injection-molded to a zinc alloy, a magnesium alloy, or a die-casting part thereof, and thus an injection product is directly bonded to a metal surface, wherein in the case of a hard polymer resin, a tensile strength of the metal and the polymer resin is 30 MPa or greater, and in the case of a soft polymer resin, a tensile strength of the metal and the polymer resin is 20 MPa or greater, and an average helium leakage after 10 times of measurement is 10Pa·m/s or less, and a novel method for preparing the same.

Find Patent Forward Citations

Sung, Mu. (2025). Die-casting metal part-polymer resin composite and method for preparing same (U.S. Patent No. 12503789). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12503789

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

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