摘要:
An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of the carboxylic acid groups of the copolymer (P) in the dispersion being present in triethanolamine-neutralized form. The aqueous binder can be used in aqueous coating materials, which can be used to coat a substrate.
摘要:
The present invention relates to polyaddition compounds, which are solid below 40° C. and liquid above 125° C., are prepared by the reaction of an isocyanate component containing uretdione groups with a polyol containing ester and/or carbonate groups, other than hydroxypivalic acid neopentylglycol ester, and have a) an average isocyanate functionality of 2.0 to 8.0 and a content of free isocyanate groups (calculated as NCO; molecular weight=42) of 2.1 to 6.0 wt. %, b) a content of uretdione groups (calculated as C2N2O2; molecular weight=84) of 10 to 19 wt. %, c) a content of urethane groups (calculated as —NH—CO—O; molecular weight=59) of 10 to 17 wt. % and d) a content of ester groups —CO—O (calculated as —CO—O; molecular weight=44) and/or carbonate groups —O—CO—O (calculated as —CO—O; molecular weight=44) of 1 to 17 wt. %. The present invention also relates to a process for the preparation of these polyaddition compounds to two-component polyurethane powder coating compositions containing these polyaddition compounds as the crosslinking agent and isocyanate-reactive compounds as the binder.
摘要翻译:本发明涉及通过含有脲二酮基团的异氰酸酯组分与含有多羟基酯和/或碳酸酯基团的异氰酸酯组分(羟基新戊酸新戊二醇)反应来制备固体低于40℃的加氢化合物和高于125℃的液体 酯和hasa)的平均异氰酸酯官能度为2.0至8.0,游离异氰酸酯基团的含量(以NCO计算;分子量= 42)为2.1至6.0重量%。 %,b)脲二酮基团的含量(以C 2 N 2 O 2计算;分子量= 84)为10〜19重量%。 %,c)氨基甲酸酯基团的含量(以-NH-CO-O计算;分子量= 59)为10〜17重量%。 %和d)酯基-CO-O(以-CO-O计算;分子量= 44)和/或碳酸酯基团-O-CO-O(以-CO-O计算;分子量= 44)的含量为 1至17wt。 %。 本发明还涉及将这些加聚化合物制备成双组分聚氨酯粉末涂料组合物的方法,该组合物含有这些加聚化合物作为交联剂和异氰酸酯反应性化合物作为粘合剂
摘要:
A hydraulically damped rubber bearing, that supports a vibrating mechanical subassembly on a substructure, has an actuator with an electromagnetic drive mechanism associated with a fluid filled chamber. The drive mechanism is responsive to performance characteristic controls which are electrically connected to at least one signal emitter in the subassembly and have a final stage in the front of a power amplifier.
摘要:
A rubber bearing, in which a liquid-filled working chamber is bounded by an expanding member and by a compensating wall that is capable of moving back and forth in the direction of the working chamber, wherein the compensating wall consists at least partially of a material that is capable of being moved by magnetic forces and extends relatively movably with one partial area into an air gap between a pair of coils comprised of two mutually opposing magnetic coils, which are rigidly supported in two coil braces and are capable of receiving an electric alternating current. The magnetic fluxes of the magnetic coils in the air gap are superimposed upon the magnetic flux of at least one permanent magnet, and the magnetic coils synchronously receive an electric current in such a way that the magnetic flux generated by the permanent magnet is strengthened on one side of the compensating wall and weakened on the other side of the compensating wall.
摘要:
An active vibration damper for a reciprocating machine part, comprising an inertial mass that can be displaced in the direction of the reciprocating motion and a support plate that can be fastened to the machine part. The inertial mass and the support plate are connected to one another by a spring element. The natural frequency of the vibrating system constituted by the inertial mass and the spring element is at most as great as the frequency of the reciprocating motion. The inertial mass can be moved by plunger coil fastened to the support plate so as to be immobile with respect thereto, and the spring element can be deformed by the plunger coil. The inertial mass consists of a cup-shaped magnet that at least partly concentrically surrounds the plunger coil radially on the inside and outside. The cup-shaped magnet is guided by a guideway parallel to the axis of the plunger coil.
摘要:
A hydraulically damped bearing for a piston engine has a liquid-filled working chamber that communicates with the compensating chamber by means of a duct-type conduit. The effective length of the conduit can be shortened by arbitrarily actuating a relief valve, which is arranged between the outlets of the conduit that communicate with the working and compensating chambers. The respective distances between the valve and the outlets are dimensioned so that the liquid volume contained in the linear section defining the effective length L of the conduit vibrates essentially in phase with the bearing member when vibrations of a frequency corresponding to the idling speed are introduced.
摘要:
A controllable rubber bearing with a hydraulic damping device, in which a fluid-filled working space is limited by a plate of magnetizable material. The plate is supported on a spring at least partially. The plate can be moved back and forth in the direction of the working space, as a function of preset parameters, using a magnet system. The support element comprises at least two opposite partial elements at least within the axial expanse of the magnet coil, which are separated from one another by an electrically insulating layer. The insulating layer extends parallel to the direction of motion of the plate and is essentially perpendicular to at least one groove of the support element, which can be made of soft iron or a moldable magnetizable material.
摘要:
A hydraulically damped rubber mounting in which a liquid filled working chamber 1 is bounded in at least a first partial area by a plate 3 which is made of a magnetizable material and supported on a spring 2. Depending upon the parameters, the plate 3 can be moved back and forth in direction of the working chamber 1 by means of a magnetic system. The transmission of acoustically effective vibrations via the rubber mounting can thus be suppressed.
摘要:
The invention relates to new, aqueous, hydroxy-functional polyester dispersions containing urethane groups, to a process for preparing them, and to their use in combination with crosslinker resins for preparing paints, coatings and adhesives.