Abstract:
PROBLEM TO BE SOLVED: To provide compounds usable for producing covering compositions having the aspects with respect to processing and use properties. SOLUTION: There are provided compounds derived from diisocyanate or polyisocyanate and alcohol A containing an alcoholic group and an activated double bond, wherein, a compound (compound I) containing a (blocked) isocyanate group, an allophanate group and a free-radically polymerizable C-C double bond which C-C double bond (activated double bonds) is in activated form by virtue of a carbonyl group directly bonded thereto. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation-curable composite sheet or film which can be easily processed and can be used for covering of a molded article by an extremely simple technique. SOLUTION: The radiation-curable composite sheet or film includes at least one substrate layer and one outer layer, the outer layer being composed of a radiation-curable material which contains a binding agent having a glass transition temperature of more than 40°C. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To simplify a production method for a material usable as a radical crosslinking agent for a high-absorbent material.SOLUTION: A method for producing a crosslinked hydrogel is provided, in which a polyalcohol A is reacted with an ethylenically unsaturated carboxylic acid B in the presence of an esterification catalyst C, a polymerization inhibitor D, and optionally a solvent E which forms an azeotrope with water under the formation of an ester F. Optionally, at least a part of water produced is removed from a reaction mixture, optionally the reaction mixture is neutralized, and the solvent E is removed by distillation, and/or stripped using a gas which is inert under reaction conditions. The reaction mixture from one of the steps, optionally an additional monoethylenically unsaturated compound N, and optionally a copolymerizable hydrophilic monomer M are polymerized in the presence of a radical initiator K and optionally a graft base L. Optionally, the reaction mixture obtained is subjected to post crosslinking, drying, pulverization, and/or screening.
Abstract:
The invention relates to the use of highly functional, highly branched polyetheramine polyols for coating substrates such as metal surfaces or plastic components, allowing an improved adhesion of additional coats.
Abstract:
The present invention relates to a water-absorbing material obtainable by a process comprising the steps of A) treating a particulate, non-surface-crosslinked, water-absorbing polymer with a mixture comprising an aqueous solvent and at least one salt of a transition metal and B) irradiating the polymer treated according to A) with UV radiation, to a process for its production and to articles comprising the water-absorbing material.
Abstract:
Disclosed is a method for producing (meth)acrylates of C10 alcohol mixtures by reacting (meth)acrylic acid with an isomer mixture of C10 alcohols comprising 2-propylheptanol as the main isomer and at least one of the C10 alcohols 2-propyl-4- methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4- methylhexanol, 2-isopropyl-5-methylhexanol, and/or 2-propyl-4,4-dimethylpentanol in the presence of at least one acid catalyst and at least one polymerization inhibitor and in the presence of a solvent forming an azeotrope along with water, removing the azeotrope by distillation and condensing the same such that the condensate is decomposed into an aqueous and an organic phase. According to said method, a) the esterification process is carried out in a reactor comprising a circulating evaporator, b) in the presence of a solvent, and c) the raw product is purified in a subsequent pure distillation process.
Abstract:
Trimethylolpropane esters are new. Trimethylolpropane esters are of formula (1). (1) AO : OCH2CH2, OCH2CH(CH3), OCH(CH3)CH2, n1-n3 : 4-6; n1+n2+n3+n4 : 14-16; m1-m3 : 1-3; m1+m2+m3 : 4-6; R1-R3 : 4-6 Independent claims are included for: (1) a process for the production of esters of formula (1) by reaction of alkoxylated trimethylolpropane with (meth)acrylic acid in the presence of at least one esterification catalyst (C) and at least one polymerization inhibitor (D) as well as optionally a solvent (E) that forms an azeotrope with water; optionally removal of at least a portion of the water from the reaction mixture during or after the water from the reaction, optiionally neutralizing the reaction mixture; optionally removing the solvent if present by distillation and/or stripping with an inert gas; (2) across-linked hydrogel prepared by polymerization of an ester of formula (1) with (meth)acrylic acid with optionally additional monoethylenicaly unsaturated compounds (N) as well as optionally at least a further copolymerizable hydrophilic monomer (M) in the presence of at least one radicatl initiator (K) and optionally a graft base (L); optionally cross-linking of the resulting reaction mixture; drying of the reaction mixture and optionally grinding the reaction mixture; (3) a mixture comprising 0.1-40 wt.% of a ester of formula (1) and (meth)acrylic acid, 0.5-99.9 wt.% of a hydrophilic monomer (M), 0-10 wt.% of an esterification catalyst (C), 0-5 wt.% polymerization inhibitor (D) and 0-10 wt.% sovlent (E).
Abstract:
La presente invención se refiere al uso de dispersiones acuosas que contienen un pigmento (B) que es por lo menos parcialmente envuelto por poliuretano (A) y también por lo menos un inhibidor de polimerización (C), en donde el poliuretano (A) puede ser obtenido mediante la reacción (a) de 15 a 70% en peso de diisocianato o poliisocianato que tiene un promedio de 1 a 10 grupos alofanato y un promedio de 1 a 10 enlaces dobles C-C por molécula y opcionalmente (b) de 0 a 60% en peso de un diisocianato o poliisocianato adicional con (c) de 5 a 50% en peso de compuestos que tienen por lo menos dos grupos que pueden reaccionar con isocianato, en donde las cantidades en porcentaje en peso se basan en el poliuretano (A) total, en tintas de impresión.
Abstract:
Se describe un método para producir (met)acrilato de mezclas de alcoholes de C10 mediante la reacción del ácido (met)acrílico con una mezcla de isómeros de alcoholes de C10 que contiene 2-propilheptanol como el isómero principal y al menos uno de los alcoholes de C10 2-propil-4-metilhexanol, 2-propil-5-metilhexanol, 2-isopropilheptanol, 2-isopropil-4-metilhexanol, 2- isopropil-5-metilhexanol y/o 2-propil-4,4-dimetilpentanol en presencia de al menos un catalizador ácido y al menos un inhibidor de la polimerización y en presencia de un solvente que forma un azeótropo junto con agua, la separación del azeótropo por destilación y la condensación del mismo de modo que el condensado se descomponga en una fase acuosa y una orgánica. De acuerdo con el método, a) el proceso de esterificación se lleva a cabo en un reactor que comprende un evaporador de circulación, b) en presencia de un solvente, y c) el producto crudo se purifica en un proceso de destilación para purificación subsiguiente.