摘要:
The invention relates to a hydrophobing polymer powder that can be redispersed in water, containing: a) a polymer comprising, a1) between 50 and 90 parts per weight vinyl acetate monomer units, a2) between 5 and 50 parts per weight vinyl ester monomer units of vinyl esters of alpha-branched monocarboxylic acids comprising between 2 and 20 C atoms, a3) between 1 and 30 parts per weight (meth)acrylic acid ester monomer units of alcohols comprising between 1 and 15 C atoms, a4) between 0 and 40 parts per weight vinyl ester monomer units of long-chained monocarboxylic acids comprising between 10 and 20 C atoms, a5) between 0 and 20 parts per weight ethylene units and optionally a6) additional auxiliary monomer units, whereby the amounts in parts per weight total 100 parts per weight; b) between 0.5 and 30 wt. % of one of more water-soluble protective colloids; c) between 0 and 20 wt. % of an organosilicon compound; d) between 0 and 20 wt. % of a fatty acid or derivatives of fatty acids; and e) between 0 and 30 wt. % of an anti-blocking agent, whereby the amounts in wt. % are relative to the total weight of the polymer a).
摘要:
The invention relates to a hydrophobing polymer powder that can be redispersed in water, containing: a) a polymer comprising, a1) between 50 and 90 parts per weight vinyl acetate monomer units, a2) between 5 and 50 parts per weight vinyl ester monomer units of vinyl esters of alpha-branched monocarboxylic acids comprising between 2 and 20 C atoms, a3) between 1 and 30 parts per weight (meth)acrylic acid ester monomer units of alcohols comprising between 1 and 15 C atoms, a4) between 0 and 40 parts per weight vinyl ester monomer units of long-chained monocarboxylic acids comprising between 10 and 20 C atoms, a5) between 0 and 20 parts per weight ethylene units and optionally a6) additional auxiliary monomer units, whereby the amounts in parts per weight total 100 parts per weight; b) between 0.5 and 30 wt. % of one of more water-soluble protective colloids; c) between 0 and 20 wt. % of an organosilicon compound; d) between 0 and 20 wt. % of a fatty acid or derivatives of fatty acids; and e) between 0 and 30 wt. % of an anti-blocking agent, whereby the amounts in wt. % are relative to the total weight of the polymer a).
摘要:
The invention relates to silane-modified polyvinylalcohols which are obtained by means of radical polymerisation by one or several vinyl esters in the presence of epoxide functional comonomers, subsequently silylation of the epoxide groups by means of nucleophilic silane compounds, and saponification of the silane-modified vinylester mixed polymers.
摘要:
The invention relates to the use of a compound of a powdery coating agent for coating ink-jet printing materials comprising one or several types of powdery polyvinyl alcohols which contain silane based on ester vinyl copolymers entirely or partially saponified whose degree of hydrolysis ranges from 75 to 100 mol % and b) one or several types of water dispersible polymer powders which are based on homopolymers or copolymers consisting of one or several types of monomers of a group comprising ester vinyl of alkyl carboxylic acids which are branched or not and provided with 1 to 15 C atoms, methacrylic acid ester and alcohol acrylic acid ester containing from 1 to 15 c atoms, vinyl aromatics, olefins, dienes and vinyl halides.
摘要:
The invention relates to the use of silane-functional polyvinyl alcohols in priming agents for separating papers and films, comprising I) at least one silane-containing polyvinyl alcohol made from fully saponified or partially saponified vinyl ester copolymers with a degree of hydrolysis of 75 to 100 mol %, obtainable by radical polymerisation of a) one or more vinyl esters of straight or branched chain alkyl carboxylic acids with 1 to 18 C atoms, of which a proportion of 1 to 30 mol %, based on the total polymer, are one or several 1-alkylvinyl esters with alkyl groups having 1 to 6 C atoms and carboxylic acids with 1 to 6 C atoms, b) 0.01 to 10 mol % of one or more silane-containing ethylenically-unsaturated monomers and, optionally, c) further comonomers which may be copolymerised with the above and saponification of the polymer thus obtained.
摘要:
The invention relates to polyvinyl alcohols and polyvinyl acetals which contain silane and can be obtained by means of a) radical polymerisation of at least one vinyl ester of unbranched or branched alkyl carboxylic acids comprising between 1 and 18 C atoms, in the presence of aldehydes containing silane or the hemiacetals or full acetals thereof, b) saponification of the vinyl ester polymers obtained thereby, and optionally c) acetalation of the partially saponified or fully saponified vinyl ester polymers.
摘要:
The invention relates to polymers containing silane, which can be obtained by means of radical polymerisation of at least one ethylenically unsaturated monomer in the presence of aldehydes containing silane or the hemiacetals or full acetals thereof.
摘要:
The invention relates to polyvinyl alcohols and polyvinyl acetals which contain silane and can be obtained by means of a) radical polymerisation of at least one vinyl ester of unbranched or branched alkyl carboxylic acids comprising between 1 and 18 C atoms, in the presence of aldehydes containing silane or the hemiacetals or full acetals thereof, b) saponification of the vinyl ester polymers obtained thereby, and optionally c) acetalation of the partially saponified or fully saponified vinyl ester polymers.
摘要:
The invention relates to the use of silane-functional polyvinyl alcohols in priming agents for separating papers and films, comprising I) at least one silane-containing polyvinyl alcohol made from fully saponified or partially saponified vinyl ester copolymers with a degree of hydrolysis of 75 to 100 mol %, obtainable by radical polymerisation of a) one or more vinyl esters of straight or branched chain alkyl carboxylic acids with 1 to 18 C atoms, of which a proportion of 1 to 30 mol %, based on the total polymer, are one or several 1-alkylvinyl esters with alkyl groups having 1 to 6 C atoms and carboxylic acids with 1 to 6 C atoms, b) 0.01 to 10 mol % of one or more silane-containing ethylenically-unsaturated monomers and, optionally, c) further comonomers which may be copolymerised with the above and saponification of the polymer thus obtained.