摘要:
The invention relates to a controlled polymerization process for preparing (meth)acrylate-based AB diblock copolymers with a B block which has a narrow monomodal molecular weight distribution, and an A block which has a broad bimodal molecular weight distribution, and to the use thereof, for example, as a binder in adhesives or sealants.
摘要:
The invention relates to a controlled polymerization method for producing ABA-triblock copolymers on the basis of (meth)acrylate with A-blocks which have a narrow, monomodal molecular weight distribution and a B-block which has a bimodal molecular weight distribution, and to the use thereof as binders in glues and sealing materials
摘要:
The invention relates to a controlled polymerization method for producing ABA-triblock copolymers on the basis of (meth)acrylate with A-blocks having a narrow, monomodal molecular weight distribution, and a B-block having a wide, monomodal molecular weight distribution. The invention further relates to the use thereof as binders in glues or sealing compounds.
摘要:
The invention relates to a controlled polymerization method for producing telechelics on the basis of (meth)acrylate, which have a bimodal molecular weight distribution, and to the use thereof as binders in glues or sealing compounds.
摘要:
The invention relates to engine oil compositions with reduced deposit-formation tendency which contain between 0.05 and 10% by weight, in relation to the total weight of the engine oil composition, of an alkyl alkoxylate of formula (I), in which R 1 , R 2 and R 3 independently are hydrogen or a hydrocarbon rest with up to 40 carbon atoms; R 4 is hydrogen, a methyl or ethyl rest; L is a linking group; n is a whole number between 4 and 40; A is an alkoxy group with between 2 and 25 recurring units derived from ethylene oxide, propylene oxide and/or butylene oxide and comprises homopolymers and statistical copolymers of at least two of the above compounds; and z is 1 or 2. The nonpolar part of compound (I) of the formula (II) contains at least 9 carbon atoms. The invention also relates to the preparation of such engine oils and to the use of alkyl alkoxylates of formula (I) for the reduction of deposit formation.
摘要翻译:本发明涉及具有降低沉积物形成趋势的发动机油组合物,其相对于发动机油组合物的总重量为0.05-10重量%的式(I)烷基烷氧基化物,其中R 1, R 2和R 3独立地是氢或具有至多40个碳原子的烃基; R 4是氢,甲基或乙基; L是连接基团; n是4到40之间的整数; A是烷氧基,其具有2至25个由环氧乙烷,环氧丙烷和/或环氧丁烷衍生的重复单元,并且包含至少两种上述化合物的均聚物和统计共聚物; 并且z为1或2.式(II)化合物(I)的非极性部分含有至少9个碳原子。 本发明还涉及这种发动机油的制备和式(I)烷基烷氧基化物用于减少沉积物形成的用途。
摘要:
A poly(meth) acrylic acid dispersion with an organic solvent as outer phase, the dispersed phase particles having a low polydispersity is obtained by the free radical polymerization of (meth) acrylic acid and optionally co-monomers, which bring about a cross-linking of the poly(meth) acrylic acid, in a nonpolar, organic solvent in the presence of stabilizers, costabilizers, and initiators. The stabilizer is a block copolymer.