Abstract: The use of compositions comprising a copolymer obtainable by multistage free-radical polymerization, in which first an aqueous polymer dispersion is prepared (referred to for short as 1st stage) and in at least one further stage monomers are polymerized in the presence of the resulting polymer dispersion (all further stages referred to for short as 2nd stage).

Abstract: The present invention relates to an adhesive comprising at least one copolymer selected from the group consisting of ethylenically unsaturated monocarboxylic and dicarboxylic acids, their anhydrides, their ester derivatives, and mixtures thereof and also at least one thickener and further customary auxiliaries. The present invention also relates to the preparation of this adhesive and to its use as an assembly adhesive.

Abstract: The invention relates to a process for parallel and automated evaluation of the blushing of n samples of dispersion films, which comprises (a) providing an illuminated array of n spatially separated samples of the dispersion films, (b) imaging the array of n samples by means of a CCD camera at m+1 different times t0 to tm and digitizing the images, (c) automatically determining multiple brightnesses B(k, ti) for each sample at different times ti selected from t0 to tm from the m+1 different digitized images for at least a portion of the n samples, where B(k, ti) is the brightness of the kth of n samples at the respective time ti and is a measure for the blushing of this sample at this time, (d) determining values P(k) of a parameter characteristic of the kinetics of the blushing from the different brightnesses B(k, ti) for each sample for at least a portion of the n samples, where P(k) is the value of the characteristic parameter for the kth of the n samples.

Abstract: Aqueous dispersions of composite particles composed of addition polymer and finely divided inorganic solid and obtainable by free-radical emulsion polymerization on a mixture of ethylenically unsaturated monomers including at least one ethylenically unsaturated alkoxysilane monomer in an aqueous medium in the presence of a dispersely distributed, finely divided inorganic solid and at least one dispersant are used to prime mineral substrates.

Abstract: The invention relates to a polymer synthesized

Abstract: The present invention relates to an aqueous polymer dispersion and an adhesive for self-adherent peelable films, tapes, and labels.

Abstract: The present invention provides aqueous polymer dispersions comprising at least one particulate polymer P having a glass transition temperature Tg of less than 0° C. which is composed of ethylenically unsaturated monomers M including: i. from 60 to 94.9% by weight, preferably from 75 to 89.5% by weight, of n-butyl acrylate as monomer M1, ii. from 5 to 39.9% by weight, preferably from 10 to 24.5% by weight, of at least one monomer M2 selected from esters of methacrylic acid with C1 to C4 alkanols, tert-butyl acrylate, and vinylaromatic monomers, and iii. from 0.1 to 5% by weight, preferably from 0.5 to 2% by weight, of at least one monomer M3 selected from ethylenically unsaturated compounds having at least one acid group; the proportions of said monomers M1 to M3 being based on 100% by weight of monomers M, obtainable by free-radical aqueous emulsion polymerization of monomers M in the presence of at least 0.

Abstract: Described is a process for preparing aqueous polymer dispersions by at least two-stage free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers, comprising:

Abstract: A method of joining shaped parts by adhesive bonding comprises

Abstract: A pressure sensitive adhesive is based on a polymer having a glass transition temperature ≦10° C. and obtained by free-radically initiated polymerization of ethylenically unsaturated monomers in a liquid medium in the presence of >0 and ≦5% by weight, based on the overall amount of the ethylenically unsaturated monomers used for the polymerization, of at least one oligomeric compound itself obtained by free-radically initiated polymerization of ethylenically unsaturated monomers.

Abstract: The present invention relates to an aqueous polymer dispersion and an adhesive for self-adherent peelable films, tapes, and labels.

Abstract: An aqueous polymer dispersion wherein the polymer particles include at least two different water-insoluble polymers P and P′, obtained by free-radical polymerization of ethylenically unsaturated monomers, which includes the following measures: (1) polymerizing a first monomer mixture M by the method of free-radical aqueous emulsion polymerization to give a polymer P, wherein the polymerization is carried out in an aqueous reaction medium having a pH of less than 5, (2) adding a base to the dispersion of the polymer P to raise the pH of the dispersion by at least 2 pH units, and (3) polymerizing a further monomer mixture M′, which is different from the monomer mixture M, in the dispersion of the polymer P, to give a polymer P′, the monomer mixtures M and M′ independently of one another including from 0.1 to 5% by weight, based on the total amount of the monomers M and M′, respectively, of at least one monomer M1 which has at least one acid group and from 95 to 99.

Abstract: A pressure sensitive adhesive is based on a polymer having a glass transition temperature ≦10° C. and obtained by free-radically initiated polymerization of ethylenically unsaturated monomers in a liquid medium in the presence of >0 and ≦5% by weight, based on the overall amount of the ethylenically unsaturated monomers used for the polymerization, of at least one oligomeric compound itself obtained by free-radically initiated polymerization of ethylenically unsaturated monomers.