STYRENE-POLYOLEFIN FUNCTIONAL POLYMER AND PREPARATION METHOD THEREFOR

Title:

STYRENE-POLYOLEFIN FUNCTIONAL POLYMER AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2024/037000

Kind Code:

A1

Abstract:

The present invention relates to a styrene-polyolefin (PO) functional polymer and a preparation method therefor. Preparation raw materials at least comprise: 30-70 parts of polymer I, 30-70 parts of polymer II, 0.01-1 part of a catalyst, 0.1-1 part of an antioxidant, 0.1-1 part of a lubricant, and 0.2-5 parts of a devolatilization aid. The polymer I is prepared from styrene, a reactive monomer, an initiator, a dispersing agent, a dispersing aid and a molecular weight regulator; and the polymer II is prepared from PO, an initiator, a reactive monomer, a diluent and a processing aid. The preparation method for the functional polymer comprises: mixing the raw materials according to a proportion; and then putting a mixture into an extruder and performing melting reaction, devolatilization and granulation to obtain a target product. The functional polymer prepared by the present invention can be used as a compatilizer of PS and the PO, can also improve the chemical resistance of the PS and reduce the dielectric property, and can also improve the friction performance of engineering plastics such as PA and POM.

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Inventors:

TANG JUNJIE (CN)
JI YONGPENG (CN)
DUAN HAO (CN)
ZHU CONGSHAN (CN)
SHI PENGWEI (CN)

Application Number:

PCT/CN2023/087955

Publication Date:

February 22, 2024

Filing Date:

April 13, 2023

Export Citation:

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Assignee:

FINE BLEND POLYMER SHANGHAI CO LTD (CN)

International Classes:

C08L25/14; C08F2/18; C08F2/20; C08F212/08; C08F220/06; C08F220/14; C08F220/32; C08F220/56; C08F222/02; C08F222/06; C08F255/02; C08L23/12; C08L51/04; C08L51/06; C08L53/02

Foreign References:

CN115368687A	2022-11-22
CN103183870A	2013-07-03
CN102643484A	2012-08-22
EP0042153A2	1981-12-23

Attorney, Agent or Firm:

SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)

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