摘要:
The invention relates to a polymer synthesized from 0.5 to 30% by weight of vinyl acetate (a), from 0.1 to 10% by weight of monomer containing at least one acid or acid anhydride group (b), from 5 to 70% by weight of at least one monomer other than (a) and (b), having a solubility of more than 5 g/l water (21° C., 1 bar) and a glass transition temperature of less than 15° C. (c), from 0 to 20% by weight of a vinylaromatic monomer having a solubility of less than 5 g/l water (d), from 0 to 90% by weight of at least one C1 to C20 alkyl (meth)acrylate (e) other than (a) to (d), and from 0 to 40% by weight of at least one further monomer (f) other than (a) to (e).
摘要:
Method of enhancing the performance properties of aqueous polymer dispersions comprising water-soluble ionic compounds, which comprises removing at least 50 mol % of the water-soluble ionic compounds from the polymer dispersion and then adding at least one salt of a monoalkyl or dialkyl ester of a sulfonated dicarboxylic acid.
摘要:
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 0.01% by weight, based on the weight of the monomers M, of at least one molecular weight regulator. The present invention also provides for the use of such polymer dispersions in adhesive formulations for producing laminates, a process for producing laminates, and the laminates obtainable by this process.
摘要:
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).
摘要:
A laminating adhesive comprising as binder a mixture of A) a polymer obtainable by polymerizing free-radically polymerizable compounds, and B) compounds containing ethylenically unsaturated, free-radically polymerizable groups (polymerizable groups for short) and having a weight-average molecular weight Mw of less than 5000 g/mol.
摘要:
Non-ceramic floor coverings are bonded to a substrate by an aqueous adhesive that comprises a synthetic polymer as a binder and hydrolyzable silane groups.
摘要:
Non-ceramic floor coverings are bonded to a substrate by an aqueous adhesive that comprises a synthetic polymer as a binder and hydrolyzable silane groups.
摘要:
The present invention relates to adhesives comprising at least one silicon-comprising copolymer of C1-C20-alkyl (meth)acrylates and at least one ethylenically unsaturated acid anhydride or one ethylenically unsaturated dicarboxylic acid whose carboxyl groups can form an anhydride group, or mixtures thereof, or at least one monomer comprising an isocyanate group and capable of free radical copolymerization.