GRAFTING-MODIFIED POLYPROPYLENE MATERIAL AND PREPARATION METHOD THEREFOR

Title:

GRAFTING-MODIFIED POLYPROPYLENE MATERIAL AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2021/218104

Kind Code:

A1

Abstract:

A grafting-modified polypropylene material for insulating materials and a preparation method therefor. The grafting-modified polypropylene material comprises a structural unit derived from co-polypropylene and a structural unit derived from an alkenyl-containing polymerization monomer. On the basis of the weight of the grafting-modified polypropylene material, the content of the structural unit derived from an alkenyl-containing polymerization monomer and in a grafting state in the grafting-modified polypropylene material is 0.1-14 wt%. The co-polypropylene has at least one of the following characteristics: the content of the comonomer is 0.5-40 mol%; the content of the xylene soluble matter is 2-80 wt%; the content of the comonomer in the soluble matter is 10-70 wt%; and the intrinsic viscosity ratio of the soluble matter to polypropylene is 0.3:5. The material can balance both the mechanical and electrical properties at higher operating temperatures.

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Inventors:

YUAN HAO (CN)
SONG WENBO (CN)
HE JINLIANG (CN)
SHAO QING (CN)
LI QI (CN)
ZHANG QI (CN)
SHI HONGWEI (CN)
LI JUAN (CN)
WANG YUTAO (CN)
HU JUN (CN)
ZHANG XIAOMENG (CN)
ZHOU YAO (CN)

Application Number:

PCT/CN2020/127507

Publication Date:

November 04, 2021

Filing Date:

November 09, 2020

Export Citation:

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Assignee:

CHINA PETROLEUM & CHEM CORP (CN)
BEIJING RES INST CHEMICAL IND CHINA PETROLEUM & CHEMICAL CORP (CN)
UNIV TSINGHUA (CN)

International Classes:

C08L23/12; B25G1/12; C08L51/06

Foreign References:

CN101080783A	2007-11-28
EP1582562A1	2005-10-05
CN102532637A	2012-07-04
CN110982141A	2020-04-10
CN105693936A	2016-06-22
JPH08295708A	1996-11-12

Attorney, Agent or Firm:

CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)

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