1
Matthias Kleiner, Wolfgang Loth, Markus Brym, Elke Gütlich Hauk, Bolette Urtel, Ruth Wirschem, Jürgen Detering: Process for preparing aqueous polyacrylic acid solutions. BASF SE, Drinker Biddle & Reath, June 16, 2015: US09056926 (1 worldwide citation)

A process for preparing aqueous solutions of homo- or copolymers of acrylic acid by means of free-radical polymerization of acrylic acid and optionally water-soluble, monoethylenically unsaturated comonomers in an aqueous medium in the presence of at least one water-soluble initiator and of at least ...


2
Gerhard Schnabel, Ruth Wirschem, Paul Klingelhoefer, Lucelena Patricio Cardoso: Copolymers of N-vinylcarboxamide and diallyldialkylammonium salt as dispersant for agrochemical formulations. BASF SE, Brinks Gilson & Lione, December 25, 2018: US10159246

The present invention relates to a composition comprising an agrochemical active substance and a copolymer which comprises an N-vinylcarboxamide and a diallyldialkylammonium salt incorporated into the polymer. The invention furthermore relates to a method of preparing this composition; to the use of ...


3
Howard Roger Dungworth, David Petty, Bolette Urtel, Ruth Wirschem: Low molecular weight phosphorus-containing polyacrylic acids and use thereof as dispersants. BASF SE, Oblon McClelland Maier & Neustadt L, January 19, 2016: US09238732

An aqueous solution of an acrylic acid polymer which contains bound phosphonite groups is provided. The acrylic acid polymer is prepared by a feed operation polymerization which results in the formation of phosphinite groups bound within the acrylic acid polymer chain. The dried acrylic acid polymer ...


4
Howard Roger Dungworth, David Petty, Bolette Urtel, Ruth Wirschem: Low molecular weight phosphorus-containing polyacrylic acids and use thereof as dispersants. BASF SE, Oblon Spivak McClelland Maier & Neustadt L, May 27, 2014: US08735516

Aqueous solutions of acrylic acid polymers are prepared by polymerization of acrylic acid in a feed operation with a free-radical initiator in the presence of hypophosphite in water as solvent, by a process comprising (i) initially charging water and optionally one or more ethylenically unsaturated ...


5
Bolette URTEL, Ruth WIRSCHEM, Ewald HEINTZ, Dieter FAUL: Low molecular weight phosphorus-containing polyacrylic acids and use thereof as dispersants. Basf Se, August 9, 2012: US20120202937-A1

An aqueous solution of acrylic acid polymers having a total phosphorus content of organically and possibly inorganically bound phosphorus, wherein (a) a first portion of the phosphorus is present in the form of phosphinate groups bound within the polymer chain,(b) a second portion of the phosphorus ...


6
Matthias Kleiner, Wolfgang Loth, Markus Brym, Elke Gütlich Hauk, Bolette Urtel, Ruth Wirschem, Jürgen Detering: Process for preparing aqueous polyacrylic acid solutions. Basf Se, August 23, 2012: US20120214941-A1

A process for preparing aqueous solutions of homo- or copolymers of acrylic acid by means of free-radical polymerization of acrylic acid and optionally water-soluble, monoethylenically unsaturated comonomers in an aqueous medium in the presence of at least one water-soluble initiator and of at least ...


7
Howard Roger DUNGWORTH, David Petty, Bolette Urtel, Ruth Wirschem: Low molecular weight phosphorus-containing polyacrylic acids and use thereof as dispersants. Basf Se, August 30, 2012: US20120220707-A1

Aqueous solutions of acrylic acid polymers are prepared by polymerization of acrylic acid in a feed operation with a free-radical initiator in the presence of hypophosphite in water as solvent, by a process comprising (i) initially charging water and optionally one or more ethylenically unsaturated ...