PRODUCTION OF A BLOCKED CURING AGENT BASED ON A PARTLY ORGANIC-BASED POLYISOCYANATE AND USE AS A 1K PUR BAKING ENAMEL

• Main Authors: NAZARAN, Pantea, STEMPFLE, Florian, VEGA SANCHEZ, Berta, KUTZ, Anne, ELSKAMP, Arjan, GERHARTZ-QUIRIN, Bernadette, RONDON TELLO, Alonso, WIEDENHOF, Frino
• Format: Patent
• Language: English; French; German
• Published: 17.07.2024
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to a polyisocyanate composition including an isocyanate group-containing formative component, the isocyanate groups being reacted to ≥50% with at least one isocyanate group-reactive compound which includes at least one N-R1 group, R1 being selected from H or OH and N being connected to the other atoms of the compound via two single bonds or a double bond, where the formative component is formed by up to ≥51 wt. % of at least one polyisocyanate based on 1,5-pentamethylene diisocyanate having an isocyanurate trimer content of ≤60 area. %, based on the total weight of the polyisocyanates based on 1,5-pentamethylene diisocyanate and determined by means of gel permeation chromatography in accordance with DIN 55672-1:2007-08, and the proportion, missing by up to 100 wt. %, of the total amount of polyisocyanates contained in the formative component includes or consists of at least one aliphatic or cycloaliphatic polyisocyanate.