Method for preparing polyether polyol for producing polyurethane waterproof material

Method for preparing polyether polyol for producing polyurethane waterproof material

The invention relates to the technical field of polyether polyol preparation, and in particular relates to a method for preparing polyether polyol for producing a polyurethane waterproof material. The method comprises the following steps: stirring and dissolving bisphenol A, a basic catalyst and pol...

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Hauptverfasser: SUN YANCONG, JING XIAODONG, RONG RUOGUI, DONG WEI
Format: Patent
Sprache:eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
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 SUN YANCONG
JING XIAODONG
RONG RUOGUI
DONG WEI
description The invention relates to the technical field of polyether polyol preparation, and in particular relates to a method for preparing polyether polyol for producing a polyurethane waterproof material. The method comprises the following steps: stirring and dissolving bisphenol A, a basic catalyst and polyhydric alcohol to homogeneous phase, replacing with nitrogen, continuously introducing propylene oxide, aging, neutralizing, dehydrating and finely preparing, thereby obtaining polyether polyol. As bisphenol A, the basic catalyst and polyhydric alcohol are used as an initial system to synthesize polyether polyol, the cost is lowered, the operation is simple, and the operation process can be greatly shortened.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Method for preparing polyether polyol for producing polyurethane waterproof material
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