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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 12767803 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Aug. 20, 2021

Polypropylene composition, preparation method therefor, and article made therefrom

Applicants:

China Petroleum & Chemical Corporation, Beijing, CN;

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation, Beijing, CN;

Inventors:

Xiaomeng Zhang, Beijing, CN;

Wenbo Song, Beijing, CN;

Fasheng Zou, Beijing, CN;

Huijie Hu, Beijing, CN;

Dezhan Li, Beijing, CN;

Lusheng Wang, Beijing, CN;

Mengyao Zhao, Beijing, CN;

Qi Zhang, Beijing, CN;

Zhenjie Liu, Beijing, CN;

Hao Yuan, Beijing, CN;

Assignees:

CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;

BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, Beijing, CN;

CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;

Attorney:

FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER LLP

Primary Examiner:

Deve V Hall

Int. Cl.
CPC ...
C08L 23/12 (2006.01);
U.S. Cl.
CPC ...
C08L 23/12 (2013.01);
Abstract

A polypropylene composition, a preparation method therefor, and an article made therefrom, the polypropylene composition comprising: (a) 70-95% by weight of a crystalline homo-polypropylene having a isotactic pentad fraction of 96% or more and forming a continuous matrix phase in the polypropylene composition; (b) 5-30% by weight of an ethylene-propylene elastic copolymer containing 20-35% by weight of an ethylene structure unit and 65-80% by weight of a propylene structure unit, and forming a dispersed rubber phase in the continuous matrix phase, such that the rubber phase can at least partially deform under an orientation force and form an orientation state structure, wherein the ratio of melt mass flow rate measured at 230° C. and a 2.16 kg load of the crystalline homo-polypropylene and the polypropylene composition is 0.5-2.0. The polypropylene composition and article have a high gloss and good mechanical properties, and the preparation method is simple, low in cost and environmentally friendly; and the article can be used in electric appliances, homes, packaging, automobiles, toys, or the medical field.

Find Patent Forward Citations

Zhang, Xiaomeng. (2026). Polypropylene composition, preparation method therefor, and article made therefrom (U.S. Patent No. 12767803). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12767803

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