摘要:
The invention relates to polyolefines with improved adhesivity, especially to cyanacrylate adhesives. An improvement in adhesion to such adhesives is obtained by incorporated polymerisation initiators, especially sterically inhibited bases like diazabicyclo[5.4.0]undec-7-ene(DBU) and 1,5-diazabicyclo[4.3.0]-non-5-ene(DBN). The invention also relates to a process for improving the adhesivity of polyolefines in which polymerisation initiators like DBU or DBN are incorporated during extrusion or injection, for example.
摘要:
Clear water-soluble polymer compounds having a mean molecular weight higher than 106 and selected among the polyalkylene oxides, polyacryl amides, polymethacryl amides and the copolymers of acryl amide and/or methacryl amide with unsaturated organic carboxylic acids having 3 to 5 C-atoms are used in water-miscible and water mixed cooling lubricants to reduce mist formation.
摘要:
The invention concerns textile slip agents with certain acrylate and or methacrylate-containing homo and/or copolymers, a process for their production and the use of these homo and/or copolymers in textile slip agents to reduce the loss of said agents from the fibre surface during the production and/or processing of said fibre.
摘要:
Polymerisable compositions containing titanium, manganese and/or zirconium salts of olefinically unsaturated polymerisable carboxylic acids and other olefinically unsaturated comonomers, as well as a radical polymerisation initiator, are suitable for the organic coil coating of metallic materials. These non-aqueous metal coatings allow a chromium-free preliminary treatment of steel materials with outstanding anticorrosive properties.
摘要:
A foam regulator that may be universally used in aqueous systems tending to foam has a good spontaneous effect in small amounts and keeps this effect for a long time. It may be adapted so that it is effective even at low temperatures while unfolding its effect through a wide temperature range. This foam regulator may be prepared as a pourable foam regulating agent and may also be incorporated into finished washing and cleaning products and be effective through a wide temperature range. When used in the paint and varnish industry, it allows a homogeneous coat of paint or varnish to be obtained, and in paper coating is produces a uniform coat of paint without surface irregularities. This foam regulator is an ester group-containing block polymer having the general formula: A-(CH2CH2O)n-B, in which n equals 4 to 300, A stands for a possibly polymer hydroxycarboxylic acid residue and B stands for hydrogen, an alkyl or alkenyl residue with 1 to 22 C atoms, a phenyl or benzyl residue or A. This polymer may be used as such or as a granulated, pourable foam regulating agent that contains 0.5 to 30 % by weight block polymer adsorbed in 70 % to 99.5 % by weight of a granulated, phosphate-free and water-soluble or water-dispersible carrier.
摘要:
Est décrit un additif pour accroître l'adhérence et la cohésion des huiles et graisses à base de composés polymères synthétiques solubles dans une phase huileuse, caractérisé en ce qu'elles contiennent comme composés polymères synthétiques des homopolymères et/ou copolymères, exempts de groupes carboxyle, d'esters de l'acide acrylique et/ou de l'acide méthacrylique et d'alcools monofonctionnels avec au moins 4 atomes de C, à savoir des esters d'acide (méth) acrylique, qui peuvent également renfermer d'autres comonomères copolymérisables exempts de groupes carboxyle dans des proportions au mieux à peu près égales et présentent une viscosité limite [eta], mesurée dans du tétrahydrofurane à 20 °C, d'au moins 300 ml.g-1. Sont également décrits un procédé pour la mise en oeuvre des composés polymères dans des huiles porteuses, ainsi que des huiles et graisses contenant ledit addifif.
摘要:
Polymerisable compositions containing titanium, manganese and/or zirconium salts of olefinically unsaturated polymerisable carboxylic acids and other olefinically unsaturated comonomers, as well as a radical polymerisation initiator, are suitable for the organic coil coating of metallic materials. These non-aqueous metal coatings allow a chromium-free preliminary treatment of steel materials with outstanding anticorrosive properties.
摘要:
The invention relates to spinning preparations in the form of aqueous emulsions or aqueous solutions which contain water-soluble polymer compounds with a mean molecular weight greater than 106.
摘要:
Polyolefine-based mouldings and foils contain internal bonding additives which are enriched by migration at the plastic surface and which have their molecular structure bonding substituents of higher polarity on an oleophilic hydrocarbon radical. At least one part of these internal additives is hardened via its hydrocarbon radicals in the area of the plastic surface and prevented from further migrating, and so permanent adhesive bondings and/or coatings of the polyolefine surface may be obtained without additional preliminary treatments. Also disclosed is a process for furnishing solid polyolefine surfaces with such adherence-improving, immobilised additive (mixtures), and other auxiliary agents used for that purpose.
摘要:
The use of possibly ethoxylated and/or propoxylated partial esters of oligoglycerins obtained by condensation of 2 to 20 glycerin molecules and possibly hydroxysubstituted C2 to C18 fatty acids as pigment dispersers for aqueous lacquer suspensions results in a high degree of gloss and improved chemical and mechanical resistance of the lacquer film obtained.