Abstract:
The present invention is directed to water soluble or dispersible polyester compositions, comprising a polyalkylene glycol monoalkyl ether, having mixed nonionic and ionic stabilization prepared in a conventional single step random condensation polymerization. The present invention is also directed to aqueous coating compositions, useful for finishing automobile and truck exteriors, containing a polyester resin with mixed ionic and nonionic stabilization. The coating is especially useful for forming metallic glamour latex based finishes on automobile and truck exteriors that have excellent chip resistance and appearance.
Abstract:
A process is provided to produce an aqueous dispersion wherein the aqueous dispersion enhances the water and oil repellency of materials. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; and 2) polymerizing the pre-emulsion in a polymerization zone in the presence of an initiator to produce the aqueous dispersion. In another embodiment, a process to produce an aqueous dispersion is provided. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; 2) shearing the pre-emulsion to produce a mini-emulsion; and 3) polymerizing the miniemulsion in a polymerization zone to produce the aqueous dispersion.
Abstract:
A greenhouse comprising: a substantially transparent surface; a protective coating comprising a pigment and a binder. The binder comprises a vinyl polymer based on one or more of the monomers selected from the group consisting of methyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, styrene, methacrylic acid and acrylic acid, having a weight-average molecular weight of 10,000-100,000 and an acid value of 40-250. The binder has a polydispersity of 2-6 and a glass transition temperature of 10 to 60null C. The protective coating is on said substantially transparent surface and the protective coating is removable with a removing agent comprising a base and a complex former.
Abstract:
The present invention relates to aqueous formulations comprising: i. at least one hydrophilic particulate polymer P1, as an aqueous dispersion, composed essentially of monoethylenically unsaturated monomers having a water-solubility in the range from 10 to 100 g/l (at 25° C. and 1 bar), and ii. at least one hydrophobic particulate polymer P2, as an aqueous dispersion, composed essentially of ethylenically unsaturated monomers having a water-solubility below 10 g/l (at 25° C. and 1 bar), the glass transition temperature Tg1 of the polymer P1 being less than 10 K different from the glass transition temperature Tg2 of the polymer P2.
Abstract:
Thermally curable aqueous compositions comprising a low-acid and an acid-rich polymer component and also a hydroxyalkylated amine are used as binders for shaped articles.
Abstract:
A two-phase acidic aqueous composition for use as a neutralization layer is generally comprised of a water soluble aqueous phase and a water insoluble particle phase. The particle phase generally comprises a copolymer having recurring units of an organic acid monomer and an organic ester monomer. The aqueous phase comprises a water soluble polymer having recurring units of at least an organic acid monomer. The organic acid monomers selected for the aqueous phase polymer are capable of interacting with the particle phase polymers such that the particle phase polymers are brought into stabilizing, intimate association with the aqueous phase.
Abstract:
A vinyl acetate-ethylene copolymer emulsion is disclosed, comprising a vinyl acetate-ethylene copolymer composed of from 10 to 40% by weight of an ethylene unit and from 90 to 60% by weight of a vinyl acetate unit and an emulsifying dispersant in an amount of from 2.5 parts by weight or more but less than 5.0 parts by weight per 100 parts by weight of the vinyl acetate unit, and having a mean particle size of not larger than 0.9 .mu.m and a solids content of from 65 to 75% by weight, wherein the emulsifying dispersant contains from 1.0 to 1.9 parts by weight of partially saponified polyvinyl alcohol prepared so as to have an average polymerization degree of from 300 to 1,000 and from 1.0 to 3.0 parts by weight of a polyoxyethylene nonionic surface active agent having an HLB of from 16.5 to 17.5 per 100 parts by weight of the vinyl acetate unit. A process for producing the vinyl acetate-ethylene copolymer is also disclosed.
Abstract:
A COMBINATION OF A POLYACRYLATE AND AN ACRYLATE-ACRYLAMIDE COPOLYMER IS USED TO BENEFICIATE BENTONITE BUT FLOCCULATE OTHER CLAYS IN LOW-SOLIDS DRILLING FLUID. BOTH POLYMERS HAVE MOLECULAR WEIGHTS ABOVE ABOUT 2 MILLION BUT BELOW ABOUT 20 MILLION. A PROCESS USING A DILUTION STEP MAKES POSSIBLE APPLYING THE POLYMERS TO HIGH-SOLIDS MUDS. EACH POLYMER MAY BE USED ALONE IN SOME CASES.
Abstract:
The problem to be solved by the present invention is to provide an effect pigment dispersion that exhibits excellent water resistance, that can form metallic or pearly luster, and that further exhibits high stability; and to provide a method for forming a multilayer coating film. The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and a phosphate-group-containing cellulose-based rheology control agent (C). The effect pigment dispersion has a solids content of 0.1 to 10 parts by mass, per 100 parts by mass of all of the components of the effect pigment dispersion; and has a viscosity of 100 to 10000 mPa·sec as measured with a Brookfield viscometer at a rotational speed of 6 revolutions per minute.