Abstract:
The present invention is directed to a water borne coating composition. The composition according to the present invention comprises an emulsified binder, wherein the binder is a polymer selected from the group consisting of polymers prepared by emulsion polymerization of unsaturated vinyl, acrylate and/or methacrylate monomers, alkyd, polyurethane, and epoxy, 0.3% to 10% by weight of a second polymer selected from one or more of the group consisting of poly(vinyl alcohol)and water-soluble copolymers having repeat units of vinyl alcohol, wherein, if the second polymer is poly(vinyl alcohol), at least 85 wt% of the second polymer has a number of repeat units not less than 2,000, and 0% to 15% by weight of a cellulose-based filler, based on the total weight of the composition, wherein the weight ratio of second polymer to binder is in the range of from 1:100 to 1:1. The composition maybe used in various applications to form a decorative coating which has special visual and tactile effect.
Abstract:
A coating having a highly-carboxylated emulsion polymer that is polymerized from (i) olefinically-unsaturated hydrophobic monomers and (ii) olefinically-unsaturated carboxylic acid-functional monomers. The coating may be removed by an alkaline solution.
Abstract:
Improved agriculturally useful products are provided, including solid materials such as nitrogenous fertilizers (e.g., urea), together with a polycarboxylated polymer selected from the group consisting of a salts of copolymers containing individual quantities of maleic and itaconic moieties. The polymer composition also includes from about 10-60% by weight of an organic drying agent such as a lower alcohol which enhances the quick drying properties thereof. The compositions may also include an amount of boron, and bimodal vinylic polymer made up of quantities of high and low molecular weight (MW) vinylic polymers such as PVA.
Abstract:
Described herein is a polar non-aqueous dispersion comprising polar polymeric microparticles in a polar non-aqueous medium, the polar polymeric microparticles being insoluble in the medium and being produced by dispersion polymerization of vinyl monomers such as acrylate monomers in the medium in the presence of a polymeric acrylic stabilizer. Inks, coatings and overprint varnishes are formulated that employ the polar non-aqueous dispersion. Such inks, etc., exhibit superior chemical resistance properties, for example in one-part and two-part systems.
Abstract:
Aqueous dispersions of copolymers formed by the polymerisation of a monomer mixture comprising 0.05 % to less than 4.5 % by weight of certain terminally unsaturated oligomers are useful for improving the scrub resistance, corrosion resistance, opacifying capacity and/or efflorescence resistance of a coating.
Abstract:
The present invention relates to a process for preparing an aqueous dispersion comprising particles with a volume average particle size diameter d50 of from 900 nanometre to 6 micrometre comprises at least steps I. and II. and optionally step(s) III.: I. Preparing an aqueous seed particulate composition of seed polymer particles with a volume average particle size diameter d50 of lower than 700 nanometre and II. Preparing an aqueous particulate composition of particles with a volume average particle size diameter d50 of from 900 nanometre to 6 micrometre by polymerizing a monomer composition (II) comprising ethylenically mono-unsaturated monomers containing carboxylic acid groups in water in the presence of the seed polymer particles with a volume average particle size diameter d50 of lower than 700 nanometre, and in the presence of an oil-soluble organic free radical initiator and/or a water-soluble ionic free radical initiator by starve feed adding at least the monomer composition (II) and the oil-soluble organic free radical initiator and/or the water-soluble ionic free radical initiator to seed particles of the seed particulate composition, and III. Optional sequentially repeating step II. N times to obtain (N+1)th generation particles by starve feed adding at least monomer composition (II) and oil-soluble organic free radical initiator and/or water-soluble ionic free radical initiator to a mixture of at least water and particles generated in the previous step, where N is a number of 1 to 10, to obtain an aqueous particulate composition of particles with a volume average particle size diameter d50 of from 900 nanometre to 6 micrometre.