Abstract: A method for producing on a surface a curable mineral binder based 3D object having a circumferential side wall and a base with an additive manufacturing device, the method including the steps of: producing the circumferential side wall by applying, at a non-zero angle relative to the surface, a plurality of layers of a first curable mineral binder composition with a movable printing head of the additive manufacturing device; producing the base by applying onto the surface at least one of the first curable mineral binder composition and a second curable mineral binder composition with the movable printing head; wherein producing the circumferential side wall and producing the base are carried out such that the base is abutting the circumferential side wall.

Abstract: A method for inerting a swellable clay and/or for reducing or inhibiting adverse effects of swellable clays on the effectiveness of dispersants in mineral binder compositions, includes adding a comb polymer to a mineral binder composition. The comb polymer includes: at least one poly(alkylene oxide) side chain-bearing monomer unit without ionic groups, optionally at least one cationic monomer unit, optionally at least one anionic monomer unit, and optionally, at least one non-ionic monomer unit.

Abstract: A defoamed aqueous composition including 5 to 75 weight-% of at least one anionic polymer, 0.05 to 5 weight-% of at least one water insoluble liquid defoamer and 0.005 to 3 weight-% of at least one polysaccharide, based on 100 weight-% of the composition. The composition gives predictable air content in non-air entrained and air-entrained mortar and concrete.

Abstract: A method for strengthening metal structure, including steps: i) mixing two-component epoxy resin composition; ii) applying composition to metal structure surface, or onto strengthening element, or both; iii) contacting applied epoxy resin composition with strengthening element surface and/or metal structure surface wherein composition forms interlayer between metal structure and strengthening element, and iv) curing epoxy resin composition at 100° C. or below; wherein two-component epoxy resin composition contains: first component between 10-50 wt.-% of at least one epoxy resin contains on average more than one epoxy group per molecule; second component between 5-30 wt.-% of hardener for epoxy resins; between 3-25 wt.-% of at least one impact strength modifier in one or both components; between 15-80 wt.-% of at least one filler in one or both components; and wherein two-component epoxy resin composition exhibits after curing Elastic Modulus at least 2500 MPa, and Impact Peel Strength at least 15 N/mm.

Abstract: A chemical inhibitor is used for reducing and/or preventing swelling of anhydrite containing rock material, wherein, the chemical inhibitor is used during construction work, especially in tunnel construction through rock material, especially in drill and blast tunnel construction work and/or in tunnel construction with a tunnel boring machine.

Abstract: The present invention relates to the use of a copolymer as a dispersant for binder compositions based on calcium sulfate, the copolymer having a polymer backbone and sidechains bound thereto, and at least one ionizable monomeric unit M1 and at least one sidechain-carrying monomeric unit M2, characterized in that the copolymer has, in a direction along the polymer backbone, a non-random distribution of the monomeric units M1 and/or of the monomeric units M2.

Abstract: An amine of formula (I) in a curing agent for epoxy resins, a curing agent for epoxy resins containing the amine of formula (I) and resultant epoxy resin compositions which can be used particularly as low-emission room-temperature-curing epoxy resin coatings demonstrating good workability, rapid curing, a high degree of hardness and high surface quality. The amine of formula (I) is low-odour, can be handled well at room temperature even without dilution, and can be produced at high purity in a simple process.

Abstract: The present invention relates to a membrane comprising a bulkhead layer, wherein more than 50% by weight of the bulkhead layer is composed of PVC, and a barrier layer. The barrier layer can, on the one hand, be a barrier layer S1, wherein the barrier layer S1 has a polyvinyl alcohol layer comprising more than 50% by weight of copolymer PA, which is connected to the bulkhead layer by a polyurethane layer, wherein more than 10% by weight of the polyurethane layer is composed of polyurethane PUR. The barrier layer can, on the other hand, be a barrier layer S2, wherein the barrier layer S2 has a composition comprising 5-50% by weight of polyurethane PUR and 50-95% by weight of copolymer PA. The membranes according to the invention have significantly lower plasticizer migration compared to the membranes of the prior art and are distinguished by improved resistance to aging, particularly as regards the adherence of the barrier layer on the bulkhead layer, and imperviousness to damp.

Abstract: The present invention relates to a polyurethane composition consisting of a first and a second component, wherein the first component comprises an alkoxylated aromatic diol, a low molecular weight aliphatic or cycloaliphatic diol and a specific polybutadiene polyol in specific ratios. The cured composition is characterized by having good adhesive characteristics, a strength that is only slightly dependent upon the temperature in the temperature range of ?35 to +85° C. and high strength and elasticity. It is particularly suitable as a structural adhesive for bonding two substrates.

Abstract: A polyurethane-based composition is disclosed which includes a polyurethane prepolymer, a solvent, a plasticizer and a curing agent, wherein the curing agent contains a mononuclear aromatic polyamine, and is present in an amount such that the molar ratio of all amine functions in the polyamine to all isocyanate functions in the composition is at least 0.7 to 1. Such polyurethane-based compositions have proven effective for example as adhesives and fillers in the repair of elastic substrates since they can be processed quickly and readily even at low temperatures. Methods are also disclosed for bonding or repairing elastic substrates that include corresponding polyurethane-based compositions, and to use of the composition for bonding and repairing elastic substrates.

Abstract: Exemplary reinforced structures, e.g., panel structures, and methods of making the same are disclosed. A reinforced structure may include a panel support extending along a panel. The panel support may be relatively rigid in comparison to the panel. The structure may further include an expandable support having a body portion mounted on the panel support. The body portion may be formed of an expandable material such that the body portion is configured to engage the panel upon expansion, thereby providing an expanded support acting between the panel and the panel support after expansion.

Abstract: The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane including a polyurethane polymer and both an aldimine and an oxazolidine as blocked amine hardeners in a specific ratio range. The membrane has a low odor, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing membrane can be suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.

Abstract: The present application is directed at the reaction product of an azide compound having two or more azide groups attached thereto and an alkyne compound having two or more alkyne groups attached thereto, wherein the azide and alkyne groups react in a 1,3-dipolar cyclo addition to form 1,4-disubstituted triazols and wherein the azide or alkyne compound or both include —O—(C?O)—NR— functional groups. The reaction products can be used as coatings, such as for flat roofs, sealants, adhesives and in elastomer applications. Methods for producing the reaction products as well as substrates including a coating of the reaction product are also disclosed.

Abstract: A reinforcement includes a material layer disposed on a carrier that includes integrally formed support features, such as ribs, holes, pins, or a combination thereof, and/or a connector pin that deforms to secure the material layer to the carrier. The support features reduce the weak interface between the material layer and the carrier by improving bonding of the material layer to the carrier.

Abstract: The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane including a polyurethane polymer and both a trialdimine and a dialdimine as blocked amine hardeners in a specific ratio range. The membrane has a low odor, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing membrane can be suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.

Abstract: An amine which can be used in epoxy resin compositions that cure at room temperature. The amine dilutes the composition highly effectively, allows rapid, trouble-free curing, even in cold and damp conditions, and reduces brittleness. The amine is particularly suitable as a constituent of a curing agent for low-emission epoxy resin compositions that cure at room temperature, in particular for floor coverings.

Abstract: A hot melt adhesive composition is provided which contains at least one silane group-containing thermoplastic poly-?-olefin which is solid at 25° C. and at least one paraffin wax. The hot melt adhesive composition has only low adhesion to uncoated aluminum tool surfaces, wherein at the same time they have high final strengths and thermal stabilities comparable to conventional adhesives, as well as good resistance to environmental influences. The hot melt adhesive is suitable as a laminating adhesive for laminating films made of thermoplastic olefins, which have sufficient stability for subsequent deep-draw lamination.

Abstract: An additive composition including a grinding aid selected from glycols, monocarboxylic acids with 1 to 4 carbon atoms, and comb polymers; as well as at least one retardant, which can be used during the process of grinding cement clinker and which leads to low brown discoloration of the ground cement in the processed state.