Hydrophobic polymer powder composition redispersible in water

• Main Authors: DIETRICH ULF, WEITZEL HANS-PETER
• Format: Patent
• Language: Chinese; English
• Published: 14.08.2020
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; REFRACTORIES; SLAG; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF NATURAL STONE

The present invention relates to a hydrophobic polymer powder composition redispersible in water. The hydrophobic polymer powder composition contains a) a base polymer having a1) greater than 60 partsby weight of vinyl laurate monomer units, a2) 5 to 30 parts by weight of vinyl acetate monomer units; a3) 5 to 30 parts by weight of ethylene monomer units; a4) 0 to 10 parts by weight of other auxiliary monomer units, wherein the sum of the parameters in parts by weight is up to 100 parts by weight; b) from 0.5 to 30 wt% of one or more protective colloids, c) from 0 to 30 wt% of an anti-blockingagent, d) from 0 to 20 wt% of an organosilicon compound, e) from 0 to 20 wt% of a fatty acid or a fatty acid derivative, the parameters in wt% being based on the total weight of polymer a). 本发明涉及可再分散于水中的疏水性聚合物粉末组合物，包含a)基础聚合物，具有a1)大于60重量份的月桂酸乙烯酯单体单元，a2)5至30重量份的乙酸乙烯酯单体单元，a3)5至30重量份的乙烯单体单元，a4)0至10重量份的其它辅助单体单元，以重量份计的参数加和至多达100重量份，b)0.5至30wt％的一种或多种保护性胶体，c)0至30wt％的抗粘连剂，d)0至20wt％的有机硅化合物，e)0至20wt％的脂肪酸或脂肪酸衍生物，以wt％计的参数基于聚合物a)的总重量。