The invention relates to a polymer dispersion for paper coating compositions obtainable by means of a radically initiated, aqueous emulsion polymerization of a) 60 to 97% by weight of vinyl acetate, b) 2 to 30% by weight of ethylene, c) 0.5 to 5% by weight of at least one ethylenically unsaturated silane monomer, d) 0.5 to 5% by weight of at least one ethylenically unsaturated carboxylic acid, based in each case on the total weight of the monomers used for the polymerization, and the data in % by weight summing in each case to 100% by weight, in the presence of one or more polymeric emulsifiers.

This invention describes a dispersion for coating a polymer surface comprising polyglycerol esters and a surfactant being a neutralized or partially neutralised fatty acid or a neutralized or partially neutralized ester of fatty acids. The dispersion can be diluted into a coating composition, which can be applied as a coating on a polymer surface. The coating has anti-static and anti-fogging effects and can be used for for example a variety of different packaging materials.

Disclosed is a non-aqueous dispersant which is excellent in dispersibility and dispersion stability and able to form a resin layer with excellent hydrolysis resistance; a color material dispersion liquid containing the non-aqueous dispersant; and a color resin composition containing the non-aqueous dispersant. The non-aqueous dispersant is a polymer comprising at least one constitutional unit represented by the following general formula (I), wherein at least part of nitrogen sites of the constitutional units each form a salt with an acidic organophosphorous compound comprising one or more selected from the group consisting of organic phosphonic acid monoester compounds resulting from addition of a monofunctional epoxy compound or monofunctional oxetane compound to an organic phosphonic acid: ##STR00001##

A nonionic surfactant composition including: a nonionic surfactant that contains a molecule having a C.sub.10-C.sub.22 alkyl group and/or alkenyl group as a hydrophobic group, a polyoxyalkylene chain as a hydrophilic group, no aromatic ring, no C.sub.9-C.sub.14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and no C.sub.13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process. The nonionic surfactant has a hydrodynamic radius of 5.0 to 8.0 nm at 40 C. in an aqueous solution in which a nonionic surfactant concentration is 0.1 kg/L in the nonionic surfactant composition, the radius being measured by a dynamic light scattering method.

The instant invention provides an aqueous dispersion, a coating composition, coating layers and coated article made therefrom. The coating composition according to the present invention comprises: (1) the inventive aqueous dispersion comprising the melt blending product of: (a) from 50 to 99 percent by weight of one or more polyethylene terephthalate resins, based on the total solid content of the dispersion; (b) from 1 to 50 percent by weight of one or more stabilizing agents comprising at least one second polyester, based on the total solid content of the dispersion, wherein said second polyester (i) has a carboxylic acid group and an acid number equal to or greater than 15, based on the solid content of the second polyester; or (ii) is a self-dispersing sulfopolyester; (c) one or more neutralizing agents; and (d) from 15 to 90 percent by weight of water, based on the total weight of the dispersion; wherein said dispersion has a solid content of 10 to 85 percent, based on the total weight of the dispersion; and (2) optionally one or more cross-linking agents.

A shellac-substitute is described herein in the form of an acid-functional polymer or an acid-functional polyester polymer. The acid-functional polyester polymer, among other uses, is suitable for stain-blocking with coating compositions, such as primers, sealants, stain-blocking coating compositions, odor-blocking compositions, and/or varnishes.

To obtain an aqueous coating liquid which affords, by applying it on a plastic substrate and drying it, a coated film excellent in transparency, gas barrier properties, and adhesiveness to the substrate and excellent in homogeneity. An aqueous coating liquid containing a polyvinyl alcohol resin (A), a polyethyleneimine (B), a nonionic surfactant (C), and an aqueous solvent (D).

The present invention relates to an aqueous dispersion composition that is water-based yet exhibits a high level of peel strength and a high level of adhesion to a polyolefin substrate that is hard to adhere to in baking at low temperatures (80 C. to 90 C.), as well as excellent water resistance. The aqueous dispersion composition contains a modified polyolefin (A) having a weight average molecular weight of 60,000 or more as measured by GPC and having an amount of modification with an ,-unsaturated carboxylic acid and/or an acid anhydride thereof of less than 1.0 mass %; a nitrogen-containing non-ionic emulsifier (B); and a basic substance (C), in which the aqueous dispersion composition has a Z-average particle size of 200 nm or less.

A high-temperature-resistant water-based varnish, comprising the following components in parts by weight: 80-90 parts of an acrylic emulsion and 10-20 parts of a zinc ammonia polytetrafluoroethylene emulsion. The solid content of the acrylic emulsion is 45-55 wt %, and the solid content of the zinc ammonia polytetrafluoroethylene emulsion is 45-55 wt %. Further disclosed are a preparation method for the high-temperature-resistant water-based varnish and an obtained high-temperature-resistant coating; the temperature resistance of the obtained high-temperature-resistant coating is not less than 220 C.

A composition comprising a first, synthetic gel and a second gel is useful for the preparation of waterborne multicolor paints.