| 摘要 |
Manufacture of low-emission polymer emulsion paints, coatings and plasters in the form of aqueous preparations based on aqueous dispersions of copolymers of olefinically unsaturated monomers wherein the pigment volume concentration (PVC) is not less than 60% and which contain water, fillers, pigments, emulsion copolymers and customary assistants, the emulsion copolymers containing from 0.05 to 2% by weight of monomer units from specific unsaturated hydrolysable organic silicon compounds and the aqueous copolymer dispersions having a minimum film-forming temperature (MFFT) of <10 DEG C, preferably <5 DEG C, in particular <2 DEG C. The aqueous preparations according to the invention contain <0.1% by weight of non-aqueous volatiles, based on the total non-volatile content of the preparations, and the pH of the aqueous preparations is within the range from 5.5 to 10. The low-emission aqueous preparations manufactured according to the invention are in particular free of volatile organic solvents, volatile organic film-forming aids, low molecular weight plasticisers, residual monomers from the emulsion copolymerisation, other, non- aqueous volatiles and malodorous by-products. Use of the emulsion-based paints, coatings and plasters as preservatives for structures and buildings or as building materials, in particular in inadequately ventilated and in inhabited rooms. |
