Abstract:
The invention relates to a polyurea which can be produced from a) a component A comprising a1) 5 to 40% by weight of at least one polyetheramine 1 (PEA 1), which can be obtained from at least one polyether polyol 1 (PEP 1) and at least one amine 1, the PEP 1 having a weight equivalent of = 500, a2) 30 to 90% by weight of at least one polyetheramine 2 (PEA 2), which can be obtained from at least one polyether polyol (PEP 2) and at least one amine 2, the PEP 2 having a weight equivalent of > 500, a3) 5 to 30% by weight of at least one amine chain extender and b) one component B which is a prepolymer and can be obtained from b1) at least one polyether polyol (PEP 3) and b2) at least one isocyanate.
Abstract:
The invention relates to a polyurea which can be produced from a) a component A comprising al) 5 to 40% by weight of at least one polyetheramine 1(PEA 1), which can be obtained from at least one polyether polyol 1(PEP 1) and at least one amine 1, the PEP 1 having a weight equivalent of 500, a3) 5 to 30% by weight of at least one amine chain extender and b) one component B which is a prepolymer and can be obtained from b1) at least one polyether polyol (PEP 3) and b2) at least one isocyanate.
Abstract:
- 16 -Polyureas preparable from two polyetheramines and a prepolymer Abstract 5 The invention relates to a polyurea preparable froma component A comprisingal) 5 to 40% by weight of at least one polyetheramine 1 (PEA 1), obtainable from at least one polyetherpolyol 1 (PEP 1) and at least one amine 1, where PEP 1 has an 10 equivalent weight of 500,a2) 30 to 90% by weight of at least one polyetheramine 2 (PEA 2), obtainable from at least one polyetherpolyol 2 (PEP 2) and at least one amine 2, where PEP 2 has an equivalent weight of >500,a3) 5 to 30% by weight of at least one amine chain extender15anda component B, which is a prepolymer, obtainable from bl) at least one polyetherpolyol (PEP 3) and 20 b2) at least one isocyanate. No suitable figure
Abstract:
La invención se refiere a una poliurea que se puede producir de a) un componente A que comprende a1) 5 a 40% en peso de por lo menos un poliéter poliol 1 (PEP 1) y por lo menos una amina 1, el PEP 1 que tiene un peso equivalente de = 500, a2) 30 a 90% en peso de por lo menos una polieteramina 2 (PEA 2), que se puede obtener de por lo menos un polieterpoliol 2 (PEP 2) y por lo menos una amina 2, en donde PEP 2 tiene un peso equivalente de ( 500, a3) 5 a 30% en peso de por lo menos un extensor de cadena de amina y b) un componente B, que es un prepolímero y se puede obtener de b1) por lo menos un polieterpoliol (PEP 3) y b2) por lo menos un isocianato.
Abstract:
Método para la producción de 3-dimetilaminopropilamina (DMAPA) mediante reacción de 3-dimetilaminopropionitrilo (DMAPN) con hidrógeno en presencia de un catalizador, caracterizado porque el DMAPNempleado tiene un contenido de 2-(dimetilaminometil)-glutaronitrilo (DGN) de 300 ppm en peso o menos, referido alDMAPN empleado.
Abstract:
Poliurea que puede prepararse a partir de a) un componente A que comprende a1) del 5 % al 40 % en peso de al menos una poliéteramina 1 (PEA 1) que puede obtenerse a partir deal menos un poliéterpoliol 1 (PEP 1) y al menos una amina 1,presentando el PEP 1 un pesoequivalente 500 y teniendo la PEA 2 una funcionalidad nominal de 2, a3) del 5 % al 30 % en peso de al menos un alargador de cadena de amina y b) un componente B que es un prepolímero que puede obtenerse a partir de b1) al menos un poliéterpoliol (PEP 3), presentando el PEP 3 un peso equivalente > 500 y teniendouna funcionalidad nominal de 2, y b2) al menos un isocianato.
Abstract:
Process for preparing an amine AbstractA process for preparing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of am monia, primary and secondary amines, in the presence of a zirconium dioxide-, copper-and nickel-containing catalyst, wherein the catalytically active composition of the cata lyst, before its reduction with hydrogen, comprises oxygen compounds of zirconium, ofcopper, of nickel, in the range from 1.0 to 5.0% by weight of oxygen compounds of co balt, calculated as CoO, and in the range from 0.2 to 5.0% by weight of oxygen com pounds of vanadium, of niobium, of sulfur, of phosphorus, of gallium, of boron, of tung sten, of lead and/or of antimony, calculated in each case as V205, Nb205, H2SO4, H3PO4, Ga2O3, B2O3, WO3, PbO and Sb2O3 respectively, and also catalysts as definedabove. No suitable figure
Abstract:
Processes for preparing an amine, which processes comprise: reacting a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones, and mixtures thereof, with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a zirconium dioxide-, copper- and nickel-containing catalyst; wherein the catalyst comprises a catalytically active composition which comprises, before reduction with hydrogen, oxygen compounds of zirconium, copper, and nickel, and 0.2 to 40% by weight of an oxygen compound of cobalt, calculated as CoO, 0.1 to 5% by weight of an oxygen compound of iron, calculated as Fe2O3, and 0.1 to 5% by weight of at least one oxygen compound of lead, tin, bismuth or antimony, calculated as PbO, SnO, Bi2O3 and Sb2O3 respectively.
Abstract:
The invention relates to a polyurea which can be produced from a) a component A comprising a1) 5 to 40% by weight of at least one polyetheramine 1 (PEA 1), which can be obtained from at least one polyether polyol 1 (PEP 1) and at least one amine 1, the PEP 1 having a weight equivalent of = 500, a2) 30 to 90% by weight of at least one polyetheramine 2 (PEA 2), which can be obtained from at least one polyether polyol (PEP 2) and at least one amine 2, the PEP 2 having a weight equivalent of > 500, a3) 5 to 30% by weight of at least one amine chain extender and b) one component B which is a prepolymer and can be obtained from b1) at least one polyether polyol (PEP 3) and b2) at least one isocyanate.