摘要:
The invention relates to the use of a polymer dispersion for producing anti-drumming compounds, said polymer dispersion containing at least one polymer which can be obtained by emulsion polymerization of radically polymerisable monomers and the polymer has an average molecular weight of more than 100,000, preferably more than 100,000 to 350,000. The invention also relates to corresponding anti-drumming compounds which contain the polymer dispersion and to a method for damping vibrations or oscillations of components in vehicles.
摘要:
The invention relates to a method and suitable adhesive material compositions for adhering a substrate on cold and moist surfaces, wherein the surface temperature is lower than the dew point temperature of the air which is in contact with the surface, and wherein the adhesive material composition contains an adhesive material polymer which is formed from specific quantities of 2-ethylhexylacrylate, monomers selected from C1 to C2 alkyl(meth)acrylates, styrene, acid monomers and optionally further monomers in the presence of molecular weight regulators.
摘要:
A description is given of an aqueous polymer dispersion comprising a polymer which is obtainable by emulsion polymerization from a monomer mixture comprising as hydrophilic monomers ethoxylated (meth)acrylate monomer, acid monomer and C1 to C20 hydroxyalkyl (meth)acrylate; and also at least one hydrophobic principal monomer selected from C1 to C20 alkyl (meth)acrylates and vinylaromatics; and also, optionally, further monomers. This polymer is preparable by at least two-stage emulsion polymerization, where in a first polymerization stage the predominant fraction or the entire amount of the hydrophilic monomers is used and in a subsequent polymerization stage the predominant fraction or the entire amount of the hydrophobic monomers is used. The polymer dispersion is a suitable binder for aqueous particle dispersions, more particularly sound deadener compositions, which comprise inorganic and optionally also organic particulate solids. Also described is a method for damping vibrations or oscillations of vehicle components.