Polymers are made by polymerization of an ionic monomer such as methacrylic acid or dialkylaminoalkyl (meth)-acrylate or -acrylamide and/or a substantially non-ionic monomer, optionally a cross linking agent, and an allyl ether of the formula CH 2 ═CR'CH 2 OA m B n A p R where R' is hydrogen or methyl, A is propyleneoxy or butyleneoxy, B is ethyleneoxy, n is zero or an integer, m and p are zero or an integer less than n, and R is a hydrophobic group of at least 8 carbon atoms. The polymers are preferably made by oil in water emulsion polymerization. They can be used as thickeners particularly in environments containing surfactant and/or electrolyte, including especially emulsion paints, print pastes, alkaline liquors and acidic liquors.

Polymeric thickeners and their production

The present invention provides a method of controlling a plurality of beam patterns radiated by a base station in a wireless communication system. The method includes receiving at least one signal from a mobile station at the base station, determining estimated attributes of the at least one signal received by the base station. Smoothed versions of the estimated attributes are calculated in accordance with a predetermined set of criteria are calculated. A set of weighted signal parameters are generated to describe a polarization state of the at least one signal received from the mobile station. The generated weighed signal parameters are applied to a signal transmitted by the base station such that the transmitted signal substantially matches the polarization state of the at least one signal from the mobile station.

System and method for providing polarization matching on a cellular communication forward link

A personal care composition comprising: a) a synthetic random copolymer having a net positive charge comprising; i.) a nonionic monomer unit of the following formula (I): where R is H or C1-4 alkyl; and R1 and R2 are independently selected from the group consisting of H, C1-4 alkyl, CH2OCH3, CH2OCH2CH(CH3)2, and phenyl, or together are C3-6cycloalkyl; and ii.) a cationic monomer unit with 2 or more positive charges of the following formula (II): where k = 1, each of v, v', and v' is independently an integer of from 1 to 6, w is zero or an integer of from 1 to 10, and X- is an anion, and; b) a detersive surfactant; and c) an aqueous carrier.

Personal care compositions containing cationic synthetic copolymer and a detersive surfactant

Polymers are disclosed which comprise: (A) about 1-99.9 weight percent of one or more alpha, beta-monoethylenically unsaturated carboxylic acids, typically methacrylic acids; (B) about 0-98.9 weight percent of one or more monoethylenically unsaturated monomers, typically ethyl acrylate; (C) about 0.1-99 weight percent of one or more monoethylenically unsaturated macromonomers, and (D) about 0-20 weight percent or greater of one or more polyethylenically unsaturated monomers. These polymers can be solubilized in water with the aid of an alkali, like ammonium hydroxide. When the polymers are added to latex paints and neutralized, the viscosity of the paint is increased, brush drag is increased, and the paint rheology is otherwise improved.

Polymers containing macromonomers

The invention concerns a cleansing composition comprising at least a surfactant or at least a cosmetic support and a water soluble or water dispersible copolymer comprising, in the form of polymerised units: (a) at least a monomer compound of general formula (I); (b) at least a hydrophilic monomer bearing a function with acid character copolymerisable with (a) and capable of being ionised in the medium where it is to be used; (c) optionally at least an ethylenically unsaturated hydrophilic monomer compound of neutral charge bearing one or several hydrophilic groups, copolymerisable with (a) and (b)

Cleansing composition comprising a water soluble or water dispersible polymer

This invention provides a novel polyacrylate thickening agent which is composed of monomers comprising (1) (meth)acrylic acid, (2) glyceryl allyl ether derivative, and optionally (3) one or more other polymerizable monomers. In another embodiment, this invention provides a print paste containing the defined novel polyacrylate thickening agent.

Polyacrylate thickening agents

A new composition of matter comprising an acrylamide or methacrylamide monomer characterized by the following structural formula: ##STR1## wherein R 1 and R 2 are hydrogen or methyl; R 3 , R 4 , R 5 , R 6 and R 7 are lower alkyls; n is an integer ranging from 1 to 6; and X and Y are the same or different anions.

High charge density, cationic methacrylamide based monomers and their polymers

This invention provides a process for preparing water-soluble polymers with a controlled low molecular weight, the molecular weight of the polymer being controlled by the presence of a calculated quantity of methallylsulfonate monomer during the polymerization reaction. The molecular weight of the polymer varies inversely with the quantity of methallylsulfonate monomer that is present. Low molecular weight water-soluble polymers are useful as oil well drilling additives, dispersants and the like.

Process for preparing low molecular weight water-soluble polymers by copolymerizing with water-soluble monomers a calculated quantity of methallylsulfonate monomer

This invention provides a non-gelling water-in-oil high solids slurry dispersion of water-soluble polymer. The slurry dispersion composition contains between about 40-80 weight percent of water-soluble polymer, and is prepared by dehydrating a water-in-oil dispersion of synthetic water-soluble polymer, and then slurrying a quantity of finely divided water-soluble polymer into the dehydrated dispersion.

Laurence G. Dammann

Papers

Polyacrylate thickening agents

High charge density, cationic methacrylamide based monomers and their polymers

Process for preparing low molecular weight water-soluble polymers by copolymerizing with water-soluble monomers a calculated quantity of methallylsulfonate monomer

Stable high solids water-in-oil slurry dispersion composition