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Title:
ALKYL PHOSPHINATE COMPOSITION, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/216719
Kind Code:
A1
Abstract:
Provided is an alkyl phosphinate composition, comprising: 99.5-99.9999 wt% of an alkyl phosphinate; and 0.0001-0.5 wt% of a long-chain phosphate. The particle size D95 of the alkyl phosphinate composition is less than 20 microns; the number of carbon atoms in the long-chain phosphate is 16-24. The composition of alkyl phosphinate powder can avoid agglomeration of ultra-fine powder flame retardant during use and improve the dispersion effect of ultra-fine alkyl phosphinate powder in epoxy resins and polyurethane, thereby avoiding granular white spots when used in materials such as printed circuit boards and films; moreover, the composition can meet processing and use requirements for alkyl phosphinate flame retardants, and does not reduce the flame retardant efficiency of alkyl phosphinate flame retardants. Also provided are a preparation method for and a use of the alkyl phosphinate composition.

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Inventors:
LI JINZHONG (CN)
YANG JIANWEI (CN)
Application Number:
PCT/CN2023/082396
Publication Date:
November 16, 2023
Filing Date:
March 20, 2023
Export Citation:
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Assignee:
JIANGSU LISIDE NEW METERIAL CO LTD (CN)
International Classes:
C09K21/12
Foreign References:
CN114806601A2022-07-29
US20190225772A12019-07-25
CN104497504A2015-04-08
CN103897215A2014-07-02
CN202210503927A2022-05-10
CN103951699B2015-12-30
CN104109170A2014-10-22
Other References:
"Synthesis of Monooctyl Octyl Phosphate and Study on the Structural Properties of Extraction of Lanthanide Elements", JOURNAL OF THE CHINESE SOCIETY OF RARE EARTHS, no. 3, 1985, pages 13 - 19
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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