STABLE DISPERSANT AND APPLICATION THEREOF IN PREPARING COPOLYMER POLYOLS

STABLE DISPERSANT AND APPLICATION THEREOF IN PREPARING COPOLYMER POLYOLS

Provided by the present invention are a stable dispersant and an application thereof in preparing copolymer polyols, the preparation method for the stable dispersant comprising: 1) contacting a polyol with a dianhydride compound for reaction so as to prepare an adduct; 2) performing a ring-opening a...

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Hauptverfasser: QIN, Chengqun, WU, Xunkun, ZHENG, Bing, LI, Fuguo, JU, Changxun, LIU, Bin, LIU, Yang, LI, Jing, WANG, Lunpeng
Format: Patent
Sprache:eng ; fre ; ger
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator QIN, Chengqun
WU, Xunkun
ZHENG, Bing
LI, Fuguo
JU, Changxun
LIU, Bin
LIU, Yang
LI, Jing
WANG, Lunpeng
description Provided by the present invention are a stable dispersant and an application thereof in preparing copolymer polyols, the preparation method for the stable dispersant comprising: 1) contacting a polyol with a dianhydride compound for reaction so as to prepare an adduct; 2) performing a ring-opening addition reaction on the adduct obtained in step 1) and an epoxy compound to prepare a stable dispersant; the dianhydride compound does not contain a double bond that may copolymerize with an olefinically unsaturated monomer, while the epoxy compound contains a double bond that may copolymerize with an olefinically unsaturated monomer, the polyol is a polyester polyol and/or a polyether polyol, preferably being a polyether polyol. The stable dispersant obtained by means of the described preparation method has a multi-active site anchoring function, and is applied to the synthesis of copolymer polyols to obtain copolymer polyols having relatively uniform particle size.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title STABLE DISPERSANT AND APPLICATION THEREOF IN PREPARING COPOLYMER POLYOLS
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