Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a solid blend composed of polyvinyl pyrrolidone and an ethoxylated fatty acid derivative and containing the ethoxylated fatty acid derivative effectively integrated in the polyvinyl pyrrolidone by the operation of an extruder. SOLUTION: The solid blend composed of polyvinyl pyrrolidone and an ethoxylated fatty acid derivative is produced by the processing of components in an extruder including the introduction of the polyvinyl pyrrolidone into the extruder in the form of an aqueous solution and the removal of the solvent during the extrusion procedure. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
Process for production of polymer blends which are suitable as filter aids and are composed of polystyrene and of crosslinked water-insoluble polyvinylpyrrolidones via processing of the two components in an extruder, which comprises melting polystyrene in an extruder and then treating it with the polyvinylpyrrolidone, and adding, to the mixture of the components, from 0.1 to 10% by weight of water, based on the total amount of polystyrene and popcorn polymer, and extruding and comminuting the mixture.
Abstract:
La invencion se relaciona a un metodo para producir mezclas de polimero, que son adecuadas para el uso como auxiliadores de filtro, de poliestireno y polivinilpirrolidonas insolubles en agua reticuladas procesando los componentes en un extrusor. La invencion se caracteriza porque el poliestireno se funde en un extrusor, entonces se mezcla con polivinilpirrolidona, y se agrega agua a la mezcla de los componente que tienen 0.1 a 10% en peso con respecto a la cantidad total de poliestireno y polimero de palomitas de maiz, en donde la mezcla se extruye y pulveriza.
Abstract:
The present invention relates to a method for the preparation of a solid formulation of a slow-release crop protection product, which comprises carrying out a melt extrusion of a composition comprising 0.1 to 80% by weight of at least one fungicidal active ingredient, 0 to 80% by weight of at least one herbicidal, acaricidal, insecticidal or growth-regulatory active ingredient, 3 to 80% by weight of a thermoplastic, water-insoluble polymer from the group of the polylactides, 0 to 80% by weight of at least one thermoplastic water-insoluble polymer, 10 to 80% by weight of at least one mineral filler and 0 to 20% by weight of inorganic or organic additives, and subsequently shaping the extrudate, and to the solid formulations preparable by this method.
Abstract:
Process for production of polymer blends which are suitable as filter aids and are composed of polystyrene and of crosslinked water-insoluble polyvinylpyrrolidones via processing of the two components in an extruder, which comprises melting polystyrene in an extruder and then treating it with the polyvinylpyrrolidone, and adding, to the mixture of the components, from 0.1 to 10% by weight of water, based on the total amount of polystyrene and popcorn polymer, and extruding and comminuting the mixture.
Abstract:
The present invention relates to a method for the preparation of a solid formulation of a slow-release crop protection product, which comprises carrying out a melt extrusion of a composition comprising 0.1 to 80% by weight of at least one fungicidal active ingredient, 0 to 80% by weight of at least one herbicidal, acaricidal, insecticidal or growth-regulatory active ingredient, 3 to 80% by weight of a thermoplastic, water-insoluble polymer from the group of the polylactides, 0 to 80% by weight of at least one thermoplastic water-insoluble polymer, 10 to 80% by weight of at least one mineral filler and 0 to 20% by weight of inorganic or organic additives, and subsequently shaping the extrudate, and to the solid formulations preparable by this method.