Abstract:
Provided is an aqueous composition having pH of 8 or higher and comprising (a) a solid phase comprising dispersed particles that comprise an amount of ethylcellulose polymer, (b) an amount of one or more polymeric dispersants, wherein said polymeric dispersant has a weight-average molecular weight of 5,000 daltons or higher, and wherein said polymeric dispersant has an acid value of 60 to 190 mg KOH/g of polymer. Also provided is a method of making such a composition using an extruder. Also provided is a film made by removing water from such a composition.
Abstract:
An aqueous polymer dispersion composition comprising a stable aqueous dispersion of single-phase thermoplastic polymer particles imbibed with a thermosettable compound having at least two oxirane groups. The thermoplastic polymer particles have a sufficient concentration of anti-agglomerating functional groups to stabilize the latex against agglomeration, and the thermoplastic polymer particles being a copolymerization product of a monomer mixture comprising, based on the total dry weight of the monomer mixture (a) 35 wt.% to71 wt.% of ethyl acrylate, (b) 30 wt.% to 60 wt.% of methyl methacrylate, and (c) 5 wt.% to 10 wt.% methylol acrylamide.
Abstract:
The invention relates to electrically-conductive moulded bodies and to a method for the production thereof from granular and/or fibre-like substrates.
Abstract:
Provided is a surface protection film having a pressure-sensitive adhesive layer that is made from an aqueous dispersion-type pressure-sensitive adhesive and has both a sufficient level of adherability to adherends and a high level of removability. The surface protection film, comprising: a pressure-sensitive adhesive layer provided on one side of a backing film and made from an aqueous dispersion-type pressure-sensitive adhesive, wherein the pressure-sensitive adhesive comprises a polymer (A) comprising a monomer unit derived from a monomer composition (a2) containing an alkyl (meth)acrylate (a1); and another polymer (B) having a glass transition temperature higher than that of the polymer (A) and comprising a monomer unit derived from a monomer composition (b2) containing 75% by weight or more of an alkyl (meth) acrylate (b1), and the layer has a glass transition temperature peak detected at -20°C or less and a glass transition temperature peak detected at 30°C to 190°C.
Abstract:
Disclosed are coating compositions that include a continuous phase that includes water and a dispersed phase that includes a microgel having a mean particle size of greater than 50 nanometers. The microgel is formed from reactants selected so as to provide a copolymer having a certain calculated Tg and includes a cycloaliphatic (meth)acrylate.
Abstract:
An object of the invention is to provide aqueous coating liquids that contain ultrafine inorganic compound particles with good dispersibility, and to provide gas barrier laminates of excellent transparency and gas barrier properties that have a layer formed from the coating liquid. A coating liquid of the invention includes ultrafine inorganic compound particles, a polyester resin, a sodium polycarboxylate and water. A gas barrier laminate of the invention includes a substrate and a gas barrier layer formed on the substrate, wherein the gas barrier layer has a layer (A) formed from the coating liquid and a layer (B) containing a polycarboxylic acid polymer.
Abstract:
Ophthalmic device molds made from at least one water-soluble vinyl alcohol copolymer, ophthalmic devices such as ocular inserts and contact lenses and including silicone hydrogel devices formed using these molds, packaged ophthalmic devices present in a solution comprising the at least one water-soluble vinyl alcohol copolymer, and related methods are described. The methods of manufacturing ophthalmic devices can use wet demolding processes, or wet delensing processes or both wet demolding and wet delensing processes involving dissolving the molds in water or an aqueous solution.