摘要:
A method for cleaning surfaces using aminoplast foam pieces produced from (a) open-cell aminoplast foams having a density in the range from 5 to 500 kg/m3 and a mean pore diameter in the range from 1 μm to 1 mm or (b) open-cell aminoplast foams having a density in the range from 5 to 500 kg/m3 and a mean pore diameter in the range from 1 μm to 1 mm, which have been treated (b1) with an aqueous formulation of at least one compound (b-1) having at least one hemiaminal or aminal group per molecule or at least one copolymer which comprises, incorporated in the form of polymerized units, at least one comonomer containing OH groups or β-dicarbonyl groups or epoxide groups, or (b2) with at least one polymer (c-1) which is solid at room temperature, contains carboxyl groups and/or carboxylic ester groups and has a molecular weight Mn in the range from 1000 to 1 000 000 g/mol, the aminoplast foam pieces used having an average diameter in the range from 0.1 mm to 50 mm.
摘要翻译:使用由(a)密度为5〜500kg / m 3的开孔细胞氨基塑料泡沫制成的氨基塑料泡沫片清洗表面的方法,平均孔径在1 (b)密度为5〜500kg / m 3的开孔氨基塑料泡沫,平均孔径为1〜1mm,其中, 已经用至少一种每分子具有至少一个半缩醛或缩醛基的化合物(b-1)的水性制剂处理(b1),或至少一种共聚物,其包含以聚合单元形式结合至少一种共聚单体 含有OH基或β-二羰基或环氧基,或(b2)与至少一种在室温下为固体的聚合物(c-1)包含羧基和/或羧酸酯基并且具有分子量M n <1000,在1000至1 000 000 g / mol范围内,使用的氨基塑料泡沫片的平均直径范围为0.1 mm至50 mm。
摘要:
The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.
摘要:
The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.
摘要:
Aqueous dispersions of water-soluble and/or water-swellable anionic polymers which are obtainable by free radical polymerization of ethylenically unsaturated, anionic monomers in an aqueous medium in the presence of at leas one stabilizer, the polymerization being carried out in the presence of at least one water-soluble polymer of the groups consisting of (a) graft polymers of vinyl acetate and/or vinyl propionate on (i) polyethylene glycols or (ii) polyethylene glycols or polypropylene glycols blocked at one or both terminal groups with alkyd carboxyl or amino groups, polyalkylene glycols, polyalkylene glycols blocked at one or both terminal groups with alkyl carboxy or amino groups and (b) water-soluble copolymers of (b1) nonionic monoethylenically unsaturated monomers, (b2) cationic monoethylenically unsaturated monomers and if appropriate (b3) anionic monoethylenically unsaturated monomers, the fraction of the interpolymerized cationic monomers being greater than that of the anionic monomers, as a stabilizer, said aqueous dispersions are prepared by free radical polymerization of the anionic monomers in an aqueous medium in the presence of the abovementioned water-soluble polymers (a) and (b) and said aqueous dispersions are used as thickeners for aqueous systems.
摘要:
An aqueous paint formulation having an aqueous basecoat and an aqueous dispersion having an at least partially neutralized ethylene copolymer wax, wherein the ethylene copolymer wax contains as comonomers in copolymerized form (A) 12-40 wt % of an ethylenically unsaturated carboxylic acid of formula (I), (B) 60-88 wt % of ethylene, and (C) 0-10 wt % of a further comonomer; or the ethylene copolymer was contains as comonomers in copolymerized form (A′) 5-50 wt % of a comonomer of formula (II), (B′) 50-95 wt % of ethylene, and (C′) 0-20 wt % of a further comonomer; wherein the ethylene copolymer wax comprising the comonomers (A), (B), and optionally (C) has a molecular weight Mw of 10000 to 150000 g/mol, and the ethylene copolymer wax comprising the comonomers (A′), (B′), and optionally (C′) has a molecular weight Mw of 5000 to 40000 g/mol.
摘要:
A process for producing an absorbent composite by contacting a solid supporting material with an emulsion comprising at least one polymeric material and at least one crosslinker and curing the mixture on the supporting material, the absorbent composites and also their use in sealing materials for road, tunnel and water engineering and also for excavations, high water protection and roof-sealing systems.
摘要:
The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.
摘要:
An aqueous paint formulation composed of an aqueous basecoat and an aqueous dispersion of an at least partially neutralized ethylene copolymer wax which is selected from ethylene copolymer waxes comprising as comonomers in copolymerized form: (A) 12% to 40% of an ethylenically unsaturated carboxylic acid of the formula I, where R1 and R2 are hydrogen and/or C1-C10alkyl; (B) 60% to 88% of ethylene; (C) 0% to 10% of a further comonomer; or (A′) 5% to 50% of a comonomer of the formula II where R1 and R2 are hydrogen and/or C1-C10alkyl, R3 is hydrogen, C1-C10alkyl and/or C3-C12cycloalkyl, where two radicals R3 may be joined to form a ring, X is oxygen, sulfur and/or N—R4, R4 is C1-C10alkyl or hydrogen, and A1 is a divalent group; (B′) 50% to 95% by weight of ethylene, and (C′) zero to 20% by weight of a further comonomer; where the ethylene copolymer waxes (A)(B)(C) and (A′)(B′)(C′) have a molecular weight 10 000 to 100 000 and 5000 to 40 000 g/mol, respectively; and the use thereof for coating plastics.
摘要:
A process for preparing precipitation polymers by spray polymerization of a monomer solution comprising at least one ethylenically unsaturated monomer and at least one solvent, the monomer being soluble in the solvent, and the polymer obtained by the polymerization of the monomer being insoluble in the solvent, and also the use of the polymers for thickening liquids.