PROCESS FOR PRODUCTION OF UNSATURATED POLIESTHER RESINS
Unsatd. polyesters are prepd. from glycols, unsatd. monocarboxylic acids or anhydrides in the presence of 0.05-0.5 wt% of condensation catalyst of SnCl2.2H2O opt. with another tin cpd. namely SnCl4, SnC2O4 as di:butyl-tin-chloride.
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | Unsatd. polyesters are prepd. from glycols, unsatd. monocarboxylic acids or anhydrides in the presence of 0.05-0.5 wt% of condensation catalyst of SnCl2.2H2O opt. with another tin cpd. namely SnCl4, SnC2O4 as di:butyl-tin-chloride. |
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