RETICULANTES ACUOSOS DE POLIISOCIANATO CON ACIDO HIDROXIPIVALICO Y BLOQUEADOS CON DIMETILPIRAZOL
LA INVENCION TRATA DE RETICULANTES ACUOSOS, DE POLIISOCIANATO BLOQUEADOS CON COMPUESTOS CICLADOS DE PIRAZOL, SU FABRICACION Y UTILIZACION COMO COMPONENTES DE BARNICES CLAROS O COMPONENTES DE RELLENO EN EL PINTADO DE AUTOMOVILES. Aqueous or water-dilutable blocked polyisocyanate (I) consists of: (a)...
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Main Authors | , , , |
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Format | Patent |
Language | Spanish |
Published |
16.04.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | LA INVENCION TRATA DE RETICULANTES ACUOSOS, DE POLIISOCIANATO BLOQUEADOS CON COMPUESTOS CICLADOS DE PIRAZOL, SU FABRICACION Y UTILIZACION COMO COMPONENTES DE BARNICES CLAROS O COMPONENTES DE RELLENO EN EL PINTADO DE AUTOMOVILES.
Aqueous or water-dilutable blocked polyisocyanate (I) consists of: (a) 100 equivalent-% polyisocyanate component, (b) 60-85 equivalent-% pyrazole compound as blocking agent, (c) 15-40 equivalent-% monohydroxycarboxylic acid to give hydrophilic properties and (d) 0-15 equivalent-% difunctional chain extender with hydroxyl (OH) and/or amino groups. The ratio of isocyanate (NCO) groups in (a) to NCO-reactive groups in (b), (c) and (d) is 1:(0.8-1.2). An Independent claim is also included for the preparation of (I). |
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Bibliography: | Application Number: ES19990104105T |