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:
Feb. 16, 2021

Filed:

Apr. 15, 2016
Applicants:

China Petroleum & Chemical Corporation, Beijing, CN;

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

Inventors:

Jianye Liu, Beijing, CN;

Shijun Zhang, Beijing, CN;

Liqiu Chu, Beijing, CN;

Liying Zhang, Beijing, CN;

Hao Zou, Beijing, CN;

Mu Dong, Beijing, CN;

Dali Gao, Beijing, CN;

Baige Chou, Beijing, CN;

Jingbo Shao, Beijing, CN;

Yun Lyu, Beijing, CN;

Hua Yin, Beijing, CN;

Qingquan Yang, Beijing, CN;

Jie Li, Beijing, CN;

Yiqing Bai, Beijing, CN;

Yihui Xu, Beijing, CN;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 3/14 (2006.01); B33Y 70/00 (2020.01); B29B 9/10 (2006.01); B29B 13/00 (2006.01); B29B 13/02 (2006.01); B29B 13/04 (2006.01); B29B 13/06 (2006.01); C08F 6/12 (2006.01); C08F 110/02 (2006.01); C08F 110/06 (2006.01); C08K 3/22 (2006.01); C08K 3/34 (2006.01); C08K 3/36 (2006.01); C08L 23/12 (2006.01); B33Y 10/00 (2015.01); B29C 64/153 (2017.01); B22F 1/00 (2006.01); B29B 9/12 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/14 (2013.01); B29B 9/10 (2013.01); B29B 13/007 (2013.01); B29B 13/02 (2013.01); B29B 13/04 (2013.01); B29B 13/06 (2013.01); B33Y 70/00 (2014.12); C08F 6/12 (2013.01); C08F 110/02 (2013.01); C08F 110/06 (2013.01); C08K 3/22 (2013.01); C08K 3/346 (2013.01); C08K 3/36 (2013.01); C08L 23/12 (2013.01); B22F 1/0059 (2013.01); B29B 2009/125 (2013.01); B29C 64/153 (2017.08); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29K 2105/251 (2013.01); B33Y 10/00 (2014.12); C08K 2003/2206 (2013.01);
Abstract

A method for preparing a polyolefin resin powder has the steps of The difference between the solubility parameters of the organic solvent and of the polyolefin resin is within 0-20% of the solubility parameter of the polyolefin resin. The polyolefin resin powder obtained according to this method has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution.


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