1
Velten Ulf Dr, Sulser Ueli, Widmer Juerg Dr, Schober Irene Dr, Buerge Theodor A: Polymers for cement dispersing admixtures. Sika, October 4, 2001: EP1138697-A1 (71 worldwide citation)

Polymers for cement dispersing admixtures, which show different performing properties in concrete are described. All polymers are based on a composition of reactants, namely a) a poly(acrylic acid), b) a polyalkyleneglycol-monoalkylether and, optionally c) a alpha -amino-polyalkyleneglycol- omega -a ...


2
Widmer Juerg Dr, Sulser Ueli, Buerge Theodor A, Velten Ulf Dr, Krapf Huber Anna: Multipurpose, cement dispersing polymers for high flow and high strength concrete. Sika, December 20, 2000: EP1061089-A1 (29 worldwide citation)

A new category of multi-purpose polymers is presented, said polymers being capable to serve as a cement dispersing agent and which at the same time are set-accelerating and do have shrinkage reducing- and anticorrosive properties to steel. Said polymers are ester-and amidgroup-modified acrylic polym ...


3
Schober Irene Dr, Buerge Theodor A, Velten Ulf Dr, Widmer Juerg Dr, Buerge Christian M, Maeder Urs Dr: Cement admixture for improved slump life. Sika, September 26, 2001: EP1136508-A1 (19 worldwide citation)

Described are polymers and cement admixtures which reduce drop in fluidity with time. Said admixture comprises at least one polymer of the present invention and at least one polymer A. The polymer of the present invention comprises side chains of which at least 10 weight-% can be cleaved in alkaline ...


4
Widmer Juerg Dr, Sulser Ueli, Velten Ulf Dr, Schober Irene Dr, Buerge Theodor A: Cement dispersing polymers for high flow, high strength and selfcompacting concrete. Sika, September 26, 2001: EP1136507-A1 (8 worldwide citation)

A multipurpose cement dispersing, shrinkage compensating and anticorrosive polymer and an admixture comprising said polymer, which improve the workability and the early strength development of fresh concrete, are described. Said polymer is an ester- and amid group-modified acrylic polymer, obtainabl ...


5
Velten Ulf Dr, Sulser Ueli, Widmer Juerg Dr, Schober Irene Dr, Buerge Theodor A: Polymers for cement dispersing admixtures. Sika, October 4, 2001: EP1138696-A1 (7 worldwide citation)

Polymers for cement dispersing admixtures, which show different performing properties in concrete are described. All polymers are based on a composition of reactants, namely a) a poly(acrylic acid), b) a polyalkyleneglycol-monoalkylether and, optionally c) a alpha -amino-polyalkyleneglycol- omega -a ...


6
Buerge Theodor A, Schober Irene Dr, Huber Anna, Widmer Juerg Dr, Sulser Ueli: Hydrosoluble polymers, process for their preparation and their use as dispersing agents in suspensions of solid materials.. Sika, December 19, 1990: EP0402563-A1 (4 worldwide citation)

The water-soluble, linear copolymers are built up from partial structural units of the formula or from partial structural units of the formula B and from partial structural units of the formula C in which the substituents are as defined in claim 1. These copolymers can be used as flow assistants in ...


7
Sulser Ueli, Widmer Juerg Dr, Huber Anna: Water-soluble copolymers of vinylacetate and maleamic acids. use as fluidizers or high-range water-reducers for aqueous suspensions.. Sika, July 6, 1994: EP0604676-A1 (3 worldwide citation)

Novel water-soluble linear copolymers of vinylacetate with monomeric addition products of amines, amino acids, amino groups containing aromatic sulfonic acids, amino alcohols of maleic anhydride. The copolymers are useful as fluidizers in water containing solid matter suspensions.


8
Widmer Juerg Dr, Leu Gerhard, Sulser Ueli: Composition curable by the influence of humidity.. Sika, September 2, 1987: EP0234047-A2 (2 worldwide citation)

Die durch Einwirkung von Feuchtigkeit aushärtende Zusammensetzung enthält: a) eine oder mehrere Episulfidverbindungen, die im Durchschnitt mehr als eine l,2-Epithiopropylethergruppe der Formel (I) pro Molekül aufweisen, und b) eines oder mehrere aliphatische N,N'-dialkylsubstituierte Diketimine der ...