摘要:
Alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids are prepared by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are endcapped at one end, in the absence of a solvent and in the presence of polymerization inhibitors and esterification catalysts at not more than 160° C. by a process in which the esterification is first carried out under atmospheric pressure or at up to 50 bar, the water formed in the esterification is then distilled from the reaction mixture at from 10 to 500 mbar and the esterification is then continued under atmospheric pressure or at up to 50 bar.
摘要:
Polymers containing acid groups are modified by reaction of (a) polymers which comprise at least 5% by weight of a copolymerized monoethylenically unsaturated monomer containing acid groups, have molar masses of from 200 to 100,000 and are obtainable by free-radical polymerization of monoethylenically unsaturated acids in aqueous solution in the presence or absence of other monoethylenically unsaturated monomers and in the presence of at least 4% by weight, based on the monomers used in the polymerization, of a water-soluble sulfur compound in which the sulfur is in the oxidation state +4, with (b) polyalkylene glycols which are end-capped at one end, alkylpolyalkylene glycol amines or mixtures thereof, or mixtures of at least one of the two compounds specified with up to 30% by weight, based on the mixtures, of ammonia, amines, alcohols, hydroxycarboxylic acids or aminocarboxylic acids at up to 250° C.
摘要:
The invention relates to a method for producing structured, electrically-conductive surfaces (3, 11) on an electrically nonconductive support (1), in which the structured and/or full-area electrically-conductive surfaces (3) of a first plane are applied onto the support (1) in a first step, an insulating layer (9) is applied in a second step at the positions where structured and/or full-area electrically-conductive surfaces (11) of a second plane cross the structured and/or full-area electrically-conductive surfaces (3) of the first plane and no electrical contact is intended to take place between the structured and/or full-area electrically-conductive surfaces of the first plane (3) and of the second plane (11), in a third step the structured and/or full-area electrically-conductive surfaces (11) of the second plane are applied according to the first step, and the second and third steps are optionally repeated.
摘要:
The present invention relates to a dispersion for the application of a metal layer on a non-electrically-conductive substrate comprising an organic binder component, a metal component, and also a solvent component. The invention further relates to processes for the production of the dispersion, processes for the production of a non-structured or structured metal layer with the aid of the dispersion, and also to the resultant substrate surfaces and their use.
摘要:
The present invention relates to a dispersion for the application of a metal layer on a non-electrically-conductive substrate comprising an organic binder component, a metal component, and also a solvent component. The invention further relates to processes for the production of the dispersion, processes for the production of a non-structured or structured metal layer with the aid of the dispersion, and also to the resultant substrate surfaces and their use.
摘要:
The invention relates to a rheometer having a rotatable shaft (1) on which a rotor plate (2) is fastened, and having a measuring instrument (10) for measuring torques exerted on the rotor plate (2) by a substance (6) to be studied during rotation of the shaft (1), a first measurement gap (5) for holding the substance (6) to be studied being formed between a first side (3) of the rotor plate (2) and a first shear face (4) and a second measurement gap (9) for holding the substance (6) to be studied being formed between a second side (7) of the rotor plate (2), opposite the first side, and a second shear face (8). The rheometer contains a magnet for generating a magnetic field in the first and second measurement gaps (5, 9).
摘要:
The invention relates to a constant load shear cell and a method for constant loading of a magnetorheological fluid in a constant load shear cell. The constant load shear cell comprises a rotatable shaft (1), to which a rotor plate (2) is fixed. A first gap (5), for accommodating a magnetorheological fluid, is formed between a first side (3) of the rotor plate (2) and a first shear surface (4). A second gap (8), for accommodating the magnetorheological fluid, is formed between a second side (6) of the rotor plate (2) facing away from the first and a second shear surface (7). The constant load shear cell further comprises at least one magnet (9) for generating a magnetic field in the first and second gaps (5, 8).
摘要:
Processes for producing a metalized textile surface for one or more articles needing or generating electric current. The process comprises (A) applying a formulation comprising at least one metal powder (a) as a component to a textile surface in a patterned or uniform manner; (B) fixing the one or more articles needing or generating electric current in at least two locations of the textile surface where the formulation was applied in step (A); and (C) depositing a further metal on the textile surface. The formulation may comprise a metal powder, a binder, an emulsifier and, if appropriate, a rheology modifier.
摘要:
The invention relates to a method for producing metal-coated base laminates having a support (51) made of an electrically nonconductive material (37), which is coated on at least one side with a metal layer (25, 53). In a first step, a base layer (11) is applied onto a substrate (3) with a dispersion (5), which contains electrolessly and/or electrolytically coatable particles in a matrix material. The matrix material is at least partially cured and/or dried. A metal layer is subsequently formed on the base layer (11) by electroless and/or electrolytic coating. The support (51) made of the electrically nonconductive material (37) is laminated onto the metal layer (25). The support (51) laminated with the metal layer (25) and at least a part of the base layer (11) are subsequently removed from the substrate (3).
摘要:
The present invention relates to processes for application of a metal layer on a substrate via deposition of a metal from a metal salt solution by a chemical and/or electroplating method, a significant factor in these processes being that carbon nanotubes are present in the substrate surface. The present invention moreover relates to the use of carbon nanotubes for application of a metal layer on a substrate.