Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TETRACHLOROETHYLENE SOLID COMPOSITE STABILIZER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/232854
Kind Code:
A1
Abstract:
The present invention relates to a tetrachloroethylene solid composite stabilizer and a preparation method therefor. The stabilizer comprises the following components in parts by weight: 10-30 parts of an ion exchange resin containing substituted phenol groups, 50-80 parts of a basic anion resin, and 50-100 parts of a desiccant, wherein the ion exchange resin containing substituted phenol groups is a phenolic compound-substituted chloromethylated macroporous styrene-divinylbenzene copolymer and the basic anion resin is an amine compound-substituted chloromethylated macroporous styrene-divinylbenzene copolymer. The ion exchange resin containing substituted phenol groups, the basic anion resin, and the desiccant are proportionally mixed until uniform to prepare the tetrachloroethylene solid composite stabilizer, and same is then packaged with a glass fiber bag and placed in tetrachloroethylene for storage and use. The solid composite stabilizer of the present invention is not miscible with tetrachloroethylene, does not affect the purity, does not produce IR impurities, and has a very good stabilizing effect on tetrachloroethylene, and the stabilizing effect on tetrachloroethylene lasts 18 months or longer.

More Like This:
WO/2009/157783ANTIOXIDANT FILM
JPH0780739[Title of Invention] Antioxidant system and composition containing the same.
WO/2005/056721TRANSITION METAL CARBOXYLATES AS CATALYSTS FOR OXYGEN SCAVENGING
Inventors:
LV WENHUA (CN)
WU XIAOLAN (CN)
LU HUIYI (CN)
GUO JIANGUO (CN)
Application Number:
PCT/CN2021/074743
Publication Date:
November 25, 2021
Filing Date:
February 02, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SINOPHARM CHEMICAL REAGENT CO LTD (CN)
International Classes:
C09K15/04; C07C17/42; C07C21/12
Domestic Patent References:
WO2007011444A12007-01-25
Foreign References:
CN106011907A2016-10-12
EP0101047A11984-02-22
US20050049442A12005-03-03
Other References:
PAN, MAO: "Study on the stability of tetrachloroethylene", CHLOR-ALKALI INDUSTRY, no. 3, 30 June 1986 (1986-06-30), pages 57 - 64, XP055869705
Attorney, Agent or Firm:
CHANGZHOU BAIYETENGFEI PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: BASE STATION DATA UPGRADING METHOD, BASE STATION AND COMPUTER-READABLE MEDIUM

Next Patent: METHOD AND DEVICE FOR CONTROLLING TEMPERATURE OF FILTER SCREEN OF STERILIZER, AND STERILIZER