Polyurethane epoxy cationic resin of thick-coating cathode electrophoretic paint
The present invention provides a method for producing water-soluble polyurethane epoxy cation resin for thick-coating cathodic electrophoresis paint. The invented resin is characterized by directly connecting semi-blocked polyisocyanate to molecular chain of epoxy resin. The semi-blocking agent for...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The present invention provides a method for producing water-soluble polyurethane epoxy cation resin for thick-coating cathodic electrophoresis paint. The invented resin is characterized by directly connecting semi-blocked polyisocyanate to molecular chain of epoxy resin. The semi-blocking agent for polyisocyanate is a compound containing "active hydrogen", for example isopropanol and so on. |
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