Patent application number | Description | Published |
20080214770 | Silane-Modified Urea Derivatives, Method For the Production Thereof, and Use Thereof as Auxiliary Rheologicla Agents - The invention describes amphiphilic polymer compounds which have been prepared by
| 09-04-2008 |
20080221243 | FLUIDISING COMPOSITION - A fluidising admixture for use with sprayable cementitious compostions, the admixture consists of 2-phosphonobutane-1,2,4-tricarboxylic acid and at least one selected polymer derived from ethylenically-unsaturated mono- or dicarboxylic acids. Citric acid may optionally be present. The admixture has good fluidising properties and outstanding shelf-life. | 09-11-2008 |
20080269376 | Amphiphilic Polymer Compounds, Method For the Production Thereof and Their Use - The invention describes amphiphilic polymer compounds which are prepared by
| 10-30-2008 |
20080319217 | Carbonic Acid Derivatives, Method for the Manufacture Thereof and the Use Thereof - The invention relates to carboxylic acid derivatives which are obtained by reacting an unsaturated dicarboxylic acid anhydride (A) with a hydrophobic reactive component (B) that contains at least one group reacting to carboxylic acid anhydrides and has an average molecular weight of 200 to 50,000 Dalton. The inventive carboxylic acid derivatives are excellent as a substance for preventing efflorescences on surfaces of hardened cementitious construction materials and/or hydrophobizing the corresponding cementitious systems. Furthermore, said cementitious products absorb considerably smaller amounts of water as a result of the inventive additives such that frost damage and premature rusting of the reinforcing steel can be significantly reduced. | 12-25-2008 |
20090054558 | Pulverulent Polycondensation Products - Pulverulent polycondensation products are described, consisting of
| 02-26-2009 |
20090078164 | Use of epoxy derivatives as additives for cementitious building materials - The present invention relates to the use of epoxy derivatives which have been prepared by reacting a di-, tri- or tetraglycidyl compound (A) with an optionally unsaturated reactive component (B) consisting of a C | 03-26-2009 |
20090099271 | Use of polymeric microparticles in building material mixtures - The use of polymeric microparticles having a cavity in hydraulically setting building material mixtures is described, from 1 to 100% by volume of the cavity of these microparticles being filled with water. In this way, remarkable concrete resistance to the freezing and thawing cycle is achieved, these microparticles providing improved protection for the concrete from the effects of the freezing and thawing cycle, even at a diameter of from 0.1 to 1 μm and in doses which are 1 to 2 orders of magnitude lower than those described in the prior art. Moreover, the compressive strength of the correspondingly hardened concrete is substantially improved, which was likewise not foreseeable. | 04-16-2009 |
20090163622 | Copolymers Based On Unsaturated Monocarboxylic or Dicarboxylic Acid Derivatives and Oxyalkylene Glycol Alkenyl Ethers, Process for Preparing Them and Their Use - Copolymers based on unsaturated mono- or dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers and optionally vinylic polyalkylene glycol or ester compounds are described and also their use as additives for aqueous suspensions based on mineral or bituminous binders, in particular cement, gypsum, lime, anhydrite, or other calcium sulphate-based binders, and based on pulverulent dispersion binders. The copolymers according to the invention impart to the aqueous binder suspensions a very good dispersing and liquefying action with, at the same time, simultaneous excellent processing properties. Moreover, the oxyalkylene glycol alkenyl ethers according to the invention are industrially relatively simple and inexpensive to prepare and need comparatively low initiator concentrations in the copolymerization. | 06-25-2009 |
20100130647 | Fluidising Composition - A fluidising admixture for use with sprayable cementitious compostions, the admixture consists of 2-phosphonobutane-1,2,4-tricarboxylic acid and at least one selected polymer derived from ethylenically-unsaturated mono- or dicarboxylic acids. Citric acid may optionally be present. The admixture has good fluidising properties and outstanding shelf-life. | 05-27-2010 |