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POLYURETHANE COATINGS OF TWO WATER BASED COMPONENTS, WITHOUT SOLVENTS OR WITH A LOW CONTENT OF VOLATILE ORGANIC COMPOUNDS.
POLYURETHANE COATINGS OF TWO WATER BASED COMPONENTS, WITHOUT SOLVENTS OR WITH A LOW CONTENT OF VOLATILE ORGANIC COMPOUNDS.
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机译：两种水性成分的聚氨酯涂料，无溶剂或挥发性有机化合物含量低。
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摘要
A DISPERSION OF A TWO COMPONENT COATING COMPOSITION, SUBSTANTIALLY WITHOUT SOLVENTS WHICH, WHEN APPLIED IN A SUBSTRATE, IS CURE FORMING A FILM THAT HAS EQUAL OR SUPERIOR ACCESSION AND UNION PROPERTIES TO THOSE OF THE PELICLES OF POLYURETHANE OR EPOXY SYSTEMS OF TWO COMPONENTS BASED ON CONVENTIONAL SOLVENTS. THE FIRST COMPONENT IS A COMBINED WATER POLYOL PHASE AND AN AMINA PHASE. THE POLYOL PHASE IS A MEMBER THAT CONSISTS OF A POLYOL CONTAINING AN ACID OR A MIXTURE OF POLYOLS CONTAINING A POLYOL CONTAINING AN ACID AS THE HYDROXYL AVERAGE FUNCTIONALITY OF THE POLYOL PHASE IS AT LEAST 1.5 AND HAS AN INDEX OF ACIDITY BETWEEN 15 AND 200 APPROXIMATELY. THE AMINA PHASE IS AN AMINA OR A MIXTURE OF AMINES CONTAINING REACTIVE ACTIVE HYDROGENS WITH NCO GROUPS SO THAT THE AVERAGE FUNCTIONALITY OF THE ACTIVE HYDROGEN IS AT LEAST 1.5. THE AMINA PHASE IS PRESENT IN A SUFFICIENT AMOUNT TO SUBSTANTIALLY NEUTRALIZE THE POLYOLES CONTAINED ACID. THE SECOND COMPONENT IS A SELECTED MEMBER OF THE GROUP THAT CONSISTS OF AN ALIFATICO POLYISOCIANATE, A CYCLALIFATICO POLYISOCIANATE AND AN AROMATIC POLYISOCIANATE AND ADUCTS AND MIXTURES OF THE SAME. THE RELATIONSHIP BETWEEN THE ISOCIANATE EQUIVALENTS AND THE SUM OF THE ACTIVE HYDROGEN EQUIVALENTS OF THE POLYOLS AND AMINES IS AT LEAST 0.5: 1 AND PREFERENTLY AT LEAST 1.1: 1. THE PREFERRED REACTION OF THE ISOCIANATE GROUPS WITH THE ACTIVE HYDROGEN UNITS FROM THE POLYOLES AND AMINAS GIVES A RESULTS OF BOTH LINEAR POLYMERIZATION AND INTERRUPTION.
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