COMPOSITE RARE EARTH HEAT STABLIZER FOR PVC AND PREPARATION METHOD THEREFOR

Title:

COMPOSITE RARE EARTH HEAT STABLIZER FOR PVC AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2020/024309

Kind Code:

A1

Abstract:

Provided by the present invention are a composite rare earth heat stabilizer for PVC and a preparation method therefor, and the rare earth composite heat stabilizer comprises the following raw material components in parts by weight: 10-70 parts of rare earth salt; 5-65 parts of calcium stearate; 1-15 parts of an antioxidant; 1-6 parts of hydrotalcite; 1- 4 parts of basic calcium aluminum phosphite; 1-8 parts of stearic acid; 3-10 parts of lauric acid; 5-15 parts of isooctanoic acid; 10-15 parts of polyethylene wax; 0.1-2 parts of phosphite ester; 0.5-5 parts of octyl epoxy stearate; and 2.5-20 parts of di-n-octyl phthalate. The rare earth composite heat stabilizer disclosed by the present invention is an environment-friendly stabilizer with high stability and low price, and has broad application prospects.

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Inventors:

YAN YIFENG (CN)
YAN QIN (CN)
ZHOU GUOQING (CN)
GAO JINKUI (CN)
JIANG SHE (CN)
XIAO YANGSHENG (CN)
YANG GUANG (CN)
FAN XIUQIANG (CN)
LONG XIXIANG (CN)

Application Number:

PCT/CN2018/099095

Publication Date:

February 06, 2020

Filing Date:

August 07, 2018

Export Citation:

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Assignee:

SHENZHEN AIMSEA IND CO LTD (CN)

International Classes:

C08K5/098; C08K5/053; C08K5/1515; C08K5/524; C08K13/02; C08L27/06

Foreign References:

CN1277974A	2000-12-27
CN1583849A	2005-02-23

Other References:

ZHANG, NING ET AL.: "Study on the Effect of Rare Earth laurate Composite Thermal Stabilizer on the Thermal Stability of PVC", JOURNAL OF THE CHINESE SOCIETY OF RARE EARTHS, vol. 32, no. 3, 30 June 2014 (2014-06-30), pages 364, ISSN: 1000-4343
ZHANG, NING ET AL.: "Study on Novel Rare Earth Malate Compound Thermal Stabilizers for Rigid PVC", CHINA PLASTICS INDUSTRY, 30 June 2013 (2013-06-30), pages 110, ISSN: 1005-5770

Attorney, Agent or Firm:

SHENZHEN YUANHANG INTELLECTUAL PROPERTY OFFICE(GENERAL PARTNER) (CN)

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