Abstract: The present invention is directed to a porous terpolymer microparticle having a high oil absorbency.

Abstract: The present invention is directed to an improved process for producing water-soluble and water-insoluble carboxylic acid polymers and copolymers. The process comprises the steps of polymerizing a carboxylic acid monomer, and a polyfunctional cross-linker monomer in a second embodiment, in an effective molar ratio, in a silicone solvent under an inert atmosphere in the presence of an effective amount of an initiator. The preferred copolymer of the second embodiment includes acrylic acid as the carboxylic acid monomer and a lauryl methacrylate and/or stearyl methacrylate as a comonomer. The resulting copolymers have new and unexpected tolerance to salt-containing water when mixed therewith.

Abstract: The present invention is directed to an improved process for producing a viscosifying polymer. The process of the present invention comprises the steps of copolymerizing a carboxylic acid monomer and a polyfunctional cross-linker monomer in an effective mole ratio in a silicone solvent under an inert atmosphere in the presence of an effective amount of an initiator to form a viscosifying polymer that in a 0.5% by weight aqueous mucilage exhibits a viscosity of about 50,000 to 300,000 cps. The present invention is further directed to a viscosifying copolymer comprising a cross-linked copolymer of a carboxylic acid monomer and a polyfunctional cross-linker monomer, the viscosifying copolymer characterized in that a 0.5% by weight aqueous mucilage of the viscosifying copolymer exhibits a viscosity of about 50,000 to 300,000 cps. A preferred viscosifying copolymer includes acrylic acid as the carboxylic acid monomer and allyl methacrylate monomer as the polyfunctional cross-linker.

Abstract: An improved nail lacquer containing a film forming resin, a plasticizer, and a solvent. The improvement resides in utilizing as the film forming resin a blend of: (i) a graft copolymer having a main backbone chain of acrylic ester units and methacrylic ester units, with the main backbone chain having grafted thereto pendant trialkoxysilyl groups and pendant ethylene glycol dimethacrylate groups; and (ii) a silsesquioxane resin containing RSiO.sub.3/2 units and .tbd.SiOH units in which R is an alkyl group or an aryl group. In an alternate form of the invention, the film forming resin is not a blend, but an improved type of graft copolymer containing, in addition to pendant trialkoxysilyl groups, pendant vinylbenzyl chloride groups.

Abstract: An improved nail lacquer containing a film forming resin, a plasticizer, and a solvent. The improvement resides in utilizing as the film forming resin a blend of: (i) a graft copolymer having a main backbone chain of acrylic ester units and methacrylic ester units, with the main backbone chain having grafted thereto pendant trialkoxysilyl groups and pendant ethylene glycol dimethacrylate groups; and (ii) a silsesquioxane resin containing RSiO.sub.3/2 units and .tbd.SiOH units in which R is an alkyl group or an aryl group. In an alternate form of the invention, the film forming resin is not a blend, but an improved type of graft copolymer containing, in addition to pendant trialkoxysilyl groups, pendant vinylbenzyl chloride groups.

Abstract: An improved nail lacquer containing a film forming resin, a plasticizer, and a solvent. The improvement resides in utilizing as the film forming resin a blend of: (i) a graft copolymer having a main backbone chain of acrylic ester units and methacrylic ester units, with the main backbone chain having grafted thereto pendant trialkoxysilyl groups and pendant ethylene glycol dimethacrylate groups; and (ii) a silsesquioxane resin containing RSiO.sub.3/2 units and .tbd.SiOH units in which R is an alkyl group or an aryl group. In an alternate form of the invention, the film forming resin is not a blend, but an improved type of graft copolymer containing, in addition to pendant trialkoxysilyl groups, pendant vinylbenzyl chloride groups.

Abstract: An improved nail lacquer containing a film forming resin, a plasticizer, and a solvent. The improvement resides in utilizing as the film forming resin a blend of: (i) a graft copolymer having a main backbone chain of acrylic ester units and methacrylic ester units, with the main backbone chain having grafted thereto pendant trialkoxysilyl groups and pendant ethylene glycol dimethacrylate groups; and (ii) a silsesquioxane resin containing RSiO.sub.3/2 units and .tbd.SiOH units in which R is an alkyl group or an aryl group. In an alternate form of the invention, the film forming resin is not a blend, but an improved type of graft copolymer containing, in addition to pendant trialkoxysilyl groups, pendant vinylbenzyl chloride groups.

Abstract: A method is described of producing a mixture of silicone polyethers from a mixture of at least two alkenyl ether terminated organic oxyalkylene compounds having different molecular weights and an organosilicon compound having at least two hydride substituents. In an alternate embodiment, an organocyclosilazane is used, and either alkyl or alkenyl ether terminated organic oxyalkylene compounds can be employed. The mixtures have utility in the conditioning of skin.

Abstract: The present invention relates to a process for preparing clear and colorless alkoxysilane monomers from the reaction of a silazane with an organic alcohol in the presence of an inorganic acid catalyst. The inorganic acid catalyst is present in a critical range from 20 parts per million (ppm) to 300 ppm. Inorganic acid catalysts used within this critical range eliminate the need for a purification step in the process.

Abstract: An improved nail lacquer which includes a film forming resin, a plasticizer and a solvent. The improvement relates to the utilization as the film forming resin of a graft copolymer which has a main backbone chain of acrylic ester monomer units and methacrylic ester monomer units. The main backbone chain has grafted thereto side chain units of carboxyl groups and side chain units of trialkoxysilyl groups. Nail coat compositions containing these film forming resins provide improved wear resistance.

Abstract: A process of decontaminating a surface contaminated with a toxic chemical agent in which there is applied to the contaminated surface, a macroporous cross-linked hydrophobic copolymer containing an agent which is a decontaminant for the toxic chemical agent present on the surface. The decontaminant can be a chemical neutralizer such as sodium hydroxide; lithium hydroxide; concentrated bleach; and mixtures of diethylene triamine, 2-methoxy ethanol, and sodium hydroxide, for example.

Abstract: A process of decontaminating a surface contaminated with a toxic chemical agent in which there is applied to the contaminated surface, a macroporous cross-linked hydrophobic copolymer containing an agent which is a decontaminant for the toxic chemical agent present on the surface. The decontaminant can be a chemical neutralizer such as sodium hydroxide; lithium hydroxide; concentrated bleach; and mixtures of diethylene triamine, 2-methoxy ethanol, and sodium hydroxide, for example.

Abstract: This invention relates to a process of cleaning a surface soiled with a staining agent. The method includes the steps of applying to the soiled surface a highly cross-linked macroporous hydrophobic copolymer which contains a chemical entrapped therein which is a solvent for the staining agent present on the soiled surface, dissolving the staining agent with the solvent, absorbing the staining agent into the solvent entrapped copolymer, and removing the copolymer containing the solvent and the dissolved staining agent from the surface.

Abstract: An aqueous cleaning dispersion, especially suitable as a contact lens cleaning solution, which includes a homogeneous mixture of water and a liquid-adsorbable powder homopolymer of tetraethylene glycol dimethacrylate.

Abstract: A precipitation polymerization process for the production of a macroporous cross-linked copolymer in which there is added to a reactor equipped with a stirrer, at least one monounsaturated monomer and at least one polyunsaturated monomer, dissolving an inorganic polymerization reaction initiator in a homogeneous minimum-boiling binary azeotrope including a solvent and water, and conducting the polymerization in the azeotrope.

Abstract: A method of forming a highly adsorptive polymer, which includes the steps of: (a) homogeneously mixing a solution of a monomer consisting exclusively of one or more types of polyunsaturated monomer, a monomer solvent, and an initiator, (b) polymerizing the monomers to form a polymer, wherein the monomer solvent is a solvent for the monomers and a non-swelling non-solvent for the polymer, and (c) removing the solvent from the polymer to form a dry powder.