摘要:
Aqueous dispersions organopolysiloxanes which are free of organic transition metal compounds and of organic compounds of the metals of the main groups III, IV and V. These dispersions can be produced using the following starting compounds:(A) organopolysiloxane containing condensation-capable groups;(B) an organosilicon compound of the formula{[(RO).sub.3 Si--R.sup.3 --].sub.e R.sup.2.sub.1-e }.sub.a Si(OR).sub.4-a(II),in whichR is identical or different and is a hydrogen atom or alkyl radical having 1 to 6 carbon atoms,R.sup.2 is identical or different and is an SiC-bonded hydrocarbon radical having 1 to 18 carbon atoms, optionally substituted with halogen atoms, ether groups, ester groups, epoxy groups, mercapto groups or (poly)glycol radicals comprised of oxyethylene units, oxypropylene units and mixtures thereofR.sup.3 is identical or different and is a divalent hydrocarbon radical,a is 0 or 1, ande is 0 or 1 where {[(RO).sub.3 Si--R.sup.3 --].sub.e R.sup.2.sub.1-e }.sub.a of formula (II) is optionally a partial hydrolyzate having not more than 8 Si atoms;(C) an organosilicon compound containing basic nitrogen.
摘要:
Composite articles having a highly filled plastic component connected to a basic body are provided which avoid the occurrence of cracks in the plastic component under changing thermal conditions. More specifically, the plastic component is not fixed directly to the basic body but instead is fixed indirectly thereto via at least one intermediary component made of an elastic material. Preferably, the intermediary component is embedded by a frictional and/or positive connection with at least one projection in a groove or opening (28) of the plastic component.
摘要:
The invention relates to a rotor (1) for an electric motor showing a hub (2) which is connected to a magnet (2). In order to avoid deformations of the inside thread (4) located in the hub (3), the hub (3) is spaced from the surrounding magnet (2) and is protected against deformations by means of inserting a core (11) during the magnet (2) is injection-molded.
摘要:
Alkoxy RTV-1 compositions comprise the product of the reaction of (A) an HO-terminated organopolysiloxane, (B1) an alkoxysilane which has at least three alkoxy groups and/or its partial hydrolysates, and (B2) an alkoxysilane which has two alkoxy groups and/or its partial hydrolysates, in the presence of (C) an acid phosphoric ester of the general formula (I) (HO)aOP(—O—[(CR12)b—O]c[(CR22)d]e—L—M)(3−a) (I), where a is 1 or 2, R1 and R2 are a hydrogen radical, methyl radical or hydroxyl radical, b and d are 2 or 3, c is an integer from 2 to 15, e is 0 or 1 L comprises a radical —O—, —COO—, —OOC—, —CONR3—, —NR4CO— or —CO—, R3 and R4 are a hydrogen radical or C1-C10-alkyl radical, and M is a monovalent, unsubstituted or hydroxyl-, fluorine-, chlorine-, bromine-, C1-C10-alkoxyalkyl- or cyano-substituted C1-C20-hydrocarbon radical, with the proviso that on any given carbon atom not more than one radical R1 and R2 may be a hydroxyl radical.
摘要:
The invention relates to a rotor (1) for an electric motor showing a hub (2) which is connected to a magnet (2). In order to avoid deformations of the inside thread (4) located in the hub (3), the hub (3) is spaced from the surrounding magnet (2) and is protected against deformations by means of inserting a core (11) during the magnet (2) is injection-moulded. (FIG. 1).