Abstract:
An anionically-stabilized aqueous emulsion composition includes a) a first emulsion polymer having a Tg from -60°C to 40°C; b) a volatile base; and c) polymeric particles, different from the first emulsion polymer and present in emulsified form. The c) polymeric particles are polyamine graft copolymers, in which vinyl monomers form a polymer grafted to a water-soluble amino- group containing polymer. The anionically-stabilized aqueous emulsion composition may have a pH of from 8 to 11.
Abstract:
An aqueous polymer dispersion, said polymer comprises polymerized units issued from the following monomers with related weight proportions based on 100 parts of weight of a) +b) : a) 50 to 90% of a monoethylenically unsaturated non-ionic monomer, b) 10 to 50% of a vinyl aromatic monomer or of methyl methacrylate, c) 1 to 5% of a hydroxy-containing (meth) acrylate, d) 0.1 to 3% of an acid monomer selected from d1) an acid monomer selected from a monocarboxylic or dicarboxylic acid monomers and d2) an acid monomer selected from phosphorous-based or sulfur-based strong acid monomers or/and their salts, or from the mixtures of d1) and d2), e) 0.001 to 0.5% of a chain transfer agent, and f) 0 to 1% one of an internal crosslinker bearing at least two copolymerisable ethylenic unsaturations, the said polymer has a Tg measured by DSC from -30 to 0 ℃ and a gel content of 0 to 60%, formed during the polymerization. In addition, a specific process of preparation of said dispersion, a coating composition comprising said dispersion, uses of said dispersion in waterproofing cementitious waterproofing coatings and the final waterproofing coating resulting therefrom were provided.
Abstract:
A latex comprising a urethane linkage and having a high solids content and a low viscosity is described herein. Also described is a process for making the urethane linkage-containing latex wherein urethane linkage formation and emulsion polymerization take place in the same processing step.
Abstract:
A one-part composition includes by wt% of total weight of the composition: a) 5 to 70 wt% of at least one emulsified polymeric binder, the binder comprising one or more of (meth)acrylamide or derivatives thereof as a polymerized monomer; b) 1 to 55 wt% of at least one silicate; c) 0.01 to 10 wt% of at least one alkyl siliconate; d) water, and e) optional additives. The binder a) includes (meth)acrylamide or derivative thereof as a polymerized monomer and is in the form of emulsified polymeric particles having a volume average particle size of 50 nm - 500 nm.
Abstract:
Multi-stage polymeric particles are prepared as a water-borne emulsion, including a first-formed lower Tg soft stage and a second-formed higher Tg hard stage. The polymeric particles include, in both stages: one or more free radical polymerizable ethylenically unsaturated monomers; 0 to 3 wt% of free radical polymerizable surfactant monomer; 0 to 4 wt% of free radical polymerizable monomer having a beta dicarbonyl functionality; 0 to 2 wt% of monomer selected from acrylamide, diacetone acrylamide, 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylates, and hydroxybutyl (meth)acrylates and mixtures thereof; 0-1.9 wt% of free radical polymerizable polyethylenically unsaturated monomers; 0.1 to 1.9% of free radical polymerizable monomer containing phosphorus acid or a salt thereof in the first stage, and 0.1 to 5 wt% of a free radical polymerizable monomer containing phosphorus acid or salt thereof in the second stage. Multi-stage polymeric-particle-based-resin is formulated into direct to metal coatings, having good block, corrosion and excellent humidity resistance.
Abstract:
A method of coating a cementitious and/or masonry substrate includes applying an aqueous coating composition to the cementitious and/or masonry substrate. The aqueous coating composition includes at least one pigment, optionally at least one filler, at least one emulsified polymeric binder, at least one water-soluble silicate, and optionally at least one additive. The emulsified polymeric binder includes at least one of: a) (meth)acrylamide or derivative thereof as a polymerized monomer; or b) 1 weight % or more of at least one surfactant based on the total dry weight of the total monomer in the emulsified polymeric binder. The aqueous coating composition has a weight ratio of emulsified polymeric binder to the water-soluble silicate from 65:35 to 95:5 on a dry weight basis. The aqueous coating composition also has a pigment volume concentration (PVC) from 5% to 85.
Abstract:
An electrode forming composition for use as the active material layer on a current collector of an electrode within a non-aqueous electrical energy storage device is provided. The electrode forming composition includes a) at least one particulate electrode-forming material, b) a polymeric binder. The polymeric binger includes at least one non-ionic monoethylenically unsaturated monomer and at least one particular oxyalkylated monomer with ethylenic unsaturation and terminated by hydrogen or an aryl or alkyl chain.
Abstract:
Polymer latex binders useful for preparing coating compositions containing low levels of, or which are substantially free of, volatile organic compounds (VOCs) such as volatile freeze-thaw additives are prepared by multistage emulsion polymerization, wherein one stage provides a copolymer having a relatively high glass transition temperature and containing an oxyalkylene-containing (meth)acrylate comonomer.
Abstract:
An aqueous composition for coating cementitious or masonry substrates is provided. When dried, the coating composition has high gloss and low dirt pick-up. The composition includes at least one emulsified polymeric binder; at least one water-soluble silicate; at least one alkyl siliconate; at least one pigment, optionally at least one filler; optionally at least one paint additive; and water. The pigment volume concentration (PVC) of the aqueous composition is 40 weight % or less.