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COMPOSITION UNDERSTANDING AN EPOXY RESIN THAT CONTAINS TERTIARY NITROGEN; PROCESS FOR FORMING A SURFACE COATING AND COATING SURFACE
COMPOSITION UNDERSTANDING AN EPOXY RESIN THAT CONTAINS TERTIARY NITROGEN; PROCESS FOR FORMING A SURFACE COATING AND COATING SURFACE
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机译:理解含有叔氮的环氧树脂的组合物;形成表面涂层和涂层表面的过程
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摘要
Tertiary nitrogen-containing chain-extended epoxy resins, capable of forming stable aqueous emulsions, may be produced by chain-extending an epoxy resin using a tertiary nitrogen containing ether or ester polyol for example, particularly, polycaprolactone which has been polymerization initiated by a tertiary amine polyol such as N-methyl diethanolamine. The corresponding amine salt is formed by treatment with an acid for example acetic acid and the resulting cationic polymer may be dispersed in water to form a cationic emulsion capable of being coated onto a substrate by electrodeposition. The chain extended resins, by virtue by their content of free epoxy groups are also usable for cross-linking and other uses.
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