摘要:
The invention relates to surface-modified particles, more particularly inorganic-based particles having reactive surfaces, more particularly surfaces containing silane-reactive and/or siloxane-reactive groups, preferably hydroxyl-containing surfaces and/or particles comprising or consisting of metal and/or semi-metal oxides and/or hydroxides, preferably nanoparticles, which on their surface have a polysiloxane-based modifier having more particularly been reacted on their surface with a polysiloxane-based modifier, preferably with the formation of chemical bonds, more particularly covalent bonds, and also to a method of producing these surface-modified particles.
摘要:
The invention relates to surface-modified particles, more particularly inorganic-based particles having reactive surfaces, more particularly surfaces containing silane-reactive and/or siloxane-reactive groups, preferably hydroxyl-containing surfaces and/or particles comprising or consisting of metal and/or semi-metal oxides and/or hydroxides, preferably nanoparticles, which on their surface have a polysiloxane-based modifier having more particularly been reacted on their surface with a polysiloxane-based modifier, preferably with the formation of chemical bonds, more particularly covalent bonds, and also to a method of producing these surface-modified particles.
摘要:
The invention relates to surface-modified nanoparticles composed of metal or semimetal oxides or hydroxides and having been reacted on their surface with a modifier, with formation of covalent bonds. The modifier is a polysiloxane. The invention also relates to a process for preparing the nanoparticles, to their use as fillers in coating materials, plastics, foams and nail varnishes, and to dispersions which comprise the nanoparticles.
摘要:
The invention relates to surface-modified nanoparticles composed of metal or semimetal oxides or hydroxides and having been reacted on their surface with a modifier, with formation of covalent bonds. The modifier is a polysiloxane. The invention also relates to a process for preparing the nanoparticles, to their use as fillers in coating materials, plastics, foams and nail varnishes, and to dispersions which comprise the nanoparticles.
摘要:
The invention relates to polyester-modified poly-siloxanes of the general formula (I) where A is an alkyl group having 1 to 8 carbon atoms, Z is an aliphatic group having 1 to 14 carbon atoms, R is an aliphatic and/or cycloaliphatic and/or aromatic poly-ester group containing at least 3 and having a weight-average molecular weight of 200 to 4000 g/mol, with no Zerewitinoff hydrogen atoms, Q is a group which contains no Zerewitinoff hydrogen atoms and is free from reactive carbon-carbon multiple bonds, m is 3 to 200 and o+n=2, with both o and n being other than zero. The invention further relates to the use of the compounds of the invention in thermoplastics, moulding compounds and coating materials.
摘要:
The invention relates to polyester-modified poly-siloxanes of the general formula (I) where A is an alkyl group having 1 to 8 carbon atoms, Z is an aliphatic group having 1 to 14 carbon atoms, R is an aliphatic and/or cycloaliphatic and/or aromatic poly-ester group containing at least 3 and having a weight-average molecular weight of 200 to 4000 g/mol, with no Zerewitinoff hydrogen atoms, Q is a group which contains no Zerewitinoff hydrogen atoms and is free from reactive carbon-carbon multiple bonds, m is 3 to 200 and o+n=2, with both o and n being other than zero. The invention further relates to the use of the compounds of the invention in thermoplastics, moulding compounds and coating materials.
摘要翻译:本发明涉及通式(I)的聚酯改性聚硅氧烷,其中A是具有1至8个碳原子的烷基,Z是具有1至14个碳原子的脂族基团,R是脂族和/或脂环族 和/或含有至少3并且具有200至4000g / mol的重均分子量的芳族聚酯基团,没有Zerewitinoff氢原子,Q是不含Zerewitinoff氢原子且不含活性碳的基团 碳多重键,m为3〜200,o + n = 2,o和n均不为0。 本发明还涉及本发明化合物在热塑性塑料,模塑料和涂料中的用途。
摘要:
The invention relates to organosilane-modified polysiloxanes of the following formula: The invention additionally relates to the use of the organo-modified polysiloxanes for surface coating, and to their preparation.
摘要:
The invention relates to levelling agents for surface coatings having a weight-average molecular weight of from 5000 to 100,000. The levelling agent is a branched polymer comprising a free-radically or ionically polymerized base molecule into which macromonomeric units containing at one end a monomeric unit which has an ethylenically unsaturated bond and possessing a weight-average molecular weight of from 1000 to 30,000 have been incorporated by free-radical or ionic copolymerization, the weight fraction of the macromonomeric units, based on the total weight of the branched polymer, being from 1 to 60% by weight. The invention further relates to the use of appropriate polymers as levelling agents for coating formulations and to coating formulations comprising the levelling agents of the invention.
摘要:
The invention relates to the use of block copolymers as leveling agents for surface coatings, having a weight-average molecular weight of from 1000 to 100000. The leveling agent is a linear or branched block copolymer composed of a polysiloxane block and one or more blocks prepared from ethylenically unsaturated monomers by controlled free-radical addition polymerization.The invention also relates to coating compositions which comprise the leveling agent.
摘要:
This invention relates to a method of producing modified vinyl ether polymers, wherein vinyl ether polymers comprising recurring units of general formula (I) where R represents a C2-C4 alkyl group and x denotes an integer from 10 to 1000, are partially transetherified with compounds of general formula Y—OH, wherein Y represents aliphatic and/or cycloaliphatic hydrocarbon groups comprising 5 to 30 carbon atoms, the hydrogen atoms of which can be replaced at least in part by halogen atoms and/or aryl radicals, and/or represents aliphatic, cycloaliphatic and/or aromatic groups with a molecular weight of up to 6000 which contain at least one ether group —O— or an ester group —COO— within the molecule, in the presence of compounds of the platinum metals with the release of the corresponding C2-C4 alcohols, wherein statistically at least one R radical is replaced by a Y radical per molecule of vinyl ether polymer.