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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 12767807 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Jan. 12, 2022

Modified cross-linked polyethylene and preparation method therefor, and recycled product and preparation method therefor

Applicants:

Beijing Oriental Yuhong Waterproof Technology Co., Ltd., Beijing, CN;

Sichuan University, Chengdu, CN;

Inventors:

Shibing Bai, Chengdu, CN;

Yi Liao, Chengdu, CN;

Wenfeng Duan, Chengdu, CN;

Shuangxin Lai, Chengdu, CN;

Shuangqiao Yang, Chengdu, CN;

Hongmei Ding, Chengdu, CN;

Ning Tan, Chengdu, CN;

Yuqin Xiong, Beijing, CN;

Yingchun Wang, Chengdu, CN;

Assignees:

BEIJING ORIENTAL YUHONG WATERPROOF TECHNOLOGY CO., LTD., Beijing, CN;

SICHUAN UNIVERSITY, Chengdu, CN;

Attorney:

COOPER LEGAL GROUP LLC

Primary Examiner:

Monica A Huson

Int. Cl.
CPC ...
C08L 23/26 (2006.01); B29B 7/00 (2006.01); B29B 7/42 (2006.01); B29B 7/46 (2006.01); B29B 7/72 (2006.01); B29B 7/84 (2006.01); B29B 9/12 (2006.01); C08J 3/00 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01); B29K 105/26 (2006.01); B29K 309/00 (2006.01);
U.S. Cl.
CPC ...
C08L 23/26 (2013.01); B29B 7/007 (2013.01); B29B 7/42 (2013.01); B29B 7/46 (2013.01); B29B 7/72 (2013.01); B29B 7/84 (2013.01); B29B 9/12 (2013.01); C08J 3/005 (2013.01); B29K 2023/0691 (2013.01); B29K 2105/251 (2013.01); B29K 2105/26 (2013.01); B29K 2309/00 (2013.01); C08J 2323/06 (2013.01); C08J 2495/00 (2013.01); C08L 2207/20 (2013.01);
Abstract

The present invention provides a modified cross-linked polyethylene and a preparation method therefor, and a recycled product and a preparation method therefor. The preparation method for the modified cross-linked polyethylene includes: milling waste cross-linked polyethylene by using a solid-phase force chemical reactor, and then using asphalt as a plasticizer for plasticization to obtain the modified cross-linked polyethylene. The plasticization treatment enables the decross-linked waste cross-linked polyethylene/asphalt material obtained after milling to have excellent processing fluidity, and thus, the decross-linked waste cross-linked polyethylene/asphalt material is suitable for preparing high-performance recycled products in various thermoplastic processing processes. The waste ultrafine cross-linked polyethylene powder subjected to asphalt plasticization can be formed in a compressive force field having a high pressure, and can also be suitable for thermoplastic extrusion processing of a low shear force field. The prepared recycled product has good mechanical properties.

Find Patent Forward Citations

Bai, Shibing. (2026). Modified cross-linked polyethylene and preparation method therefor, and recycled product and preparation method therefor (U.S. Patent No. 12767807). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12767807

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