NUEVOS COPOLIMEROS CON FUNCIONES OH QUE TIENEN BAJOS PESOS MOLECULARES, QUE PRESENTA UNA ELEVADA RAMIFICACION CON CADENAS LATERALES, PROCEDIMIENTO PARA SU PREPARACION, ASI COMO SU UTILIZACION

COPOLIMEROS DE BAJO PESO MOLECULAR, QUE SE SINTETIZAN MEDIANTE LA REACCION DE (AA) UNO O VARIOS ESTERES GLICIDILICOS DE ACIDOS MONOCARBOXILICOS ALIFATICAMENTE SATURADOS, CON UN ATOMO DE C {AL} TERCIARIO O CUATERNARIO, Y (AB) AL MENOS DOS MONOMEROS INSATURADOS COPOLIMERIZABLES, DE LOS CUALES AL MENOS...

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Hauptverfasser:	OSWALD, HARALD, EPPLE, ULRICH, KUBILLUS, UWE
Format:	Patent
Sprache:	spa
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE 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 BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Zusammenfassung:	COPOLIMEROS DE BAJO PESO MOLECULAR, QUE SE SINTETIZAN MEDIANTE LA REACCION DE (AA) UNO O VARIOS ESTERES GLICIDILICOS DE ACIDOS MONOCARBOXILICOS ALIFATICAMENTE SATURADOS, CON UN ATOMO DE C {AL} TERCIARIO O CUATERNARIO, Y (AB) AL MENOS DOS MONOMEROS INSATURADOS COPOLIMERIZABLES, DE LOS CUALES AL MENOS UNO CONTIENE AL MENOS UN GRUPO COOH, EN LAS CONDICIONES DE UNA COPOLIMERIZACION RADICAL, CARACTERIZADOS PORQUE EL PESO MEDIO DE LA MASA MOLAR DE LOS COPOLIMEROS ESTA POR DEBAJO DE 3500 G/MOL, Y LA PROPORCION DE MASA DE LAS CADENAS LATERALES RAMIFICADAS DEL COPOLIMERO ES DE AL MENOS EL 20%; SE UTILIZAN SOLOS O MEZCLADOS CON OTROS (CO)POLIMEROS QUE CONTENGAN GRUPOS HIDROXILO PARA COMPOSICIONES DE LIGANTES. Low-mol. wt. copolymers (I) with a wt.-average mol. wt. (Mw) of less than 3500 contain at least 20 wt.% of components with branched side chains, obtd. by the reaction of (aa) glycidyl ester(s) of satd. aliphatic monocarboxylic acids with a tert. or quat. alpha -C atom; and (ab) at least two unsatd. comonomers, at least one of which contains at least one COOH gp., under radical copolymerisation conditions. Also claimed are (i) prepn. of (I) by heating component (aa) to 210-260 degrees C and reacting with component (ab) (which contains at least 2.0 wt.% of a COOH gp.-contg. monomer) in the presence of radical initiator(s), to a degree of conversion of at least 95 (pref. at least 97.5) %; (ii) polymer mixts. contg. (I), obtd. by reaction of (aa) and (ab) as above in at least two time intervals with a constant temp. in each interval, using at least two different reaction temps., at least one of which is in the range 210-260 degrees C; (iii) polymer mixts. contg. (I) and other polymers etc.; (iv) binders for coating materials contg. (I) or the above polymer mixts.; (v) coating materials contg. binders as above and hardeners such as amino resins, capped or uncapped polyisocyanates or organic cpds. with acid and/or anhydride gps.