Abstract: A curing agent for epoxy resins, the curing agent including: at least one amine, which is liquid at room temperature and has 6 to 15 C atoms and two primary amino groups; at least one diphenolic acid of formula (I); and at least one diluent. The curing agent is very simple to prepare, has low viscosity, and provides coatings which: can be applied at ambient temperatures; have good processability; have surprisingly rapid curing; have a high final hardness; have a qualitatively high-grade surface; and have a surprisingly low tendency towards yellowing.

Abstract: A method of calculating a collision point between an ego vehicle and a target vehicle and to emergency-brake-assist deceleration using the calculation. The calculation defines areas of collision risk of the ego vehicle, determines movement of the ego and target vehicle, calculates times-to-collision for first and second ego-vehicle intersecting points and a target-vehicle intersecting point to an intersection point. A risk collision point condition establishes that the collision point is inside an ego vehicle area if the first time-to-collision for the first ego-vehicle intersecting point reaching the intersection point is less than a third time-to-collision for the target-intersection point reaching the intersection point, and the second time-to-collision for the second ego-vehicle intersecting point reaching the intersection point is greater than the third time-to-collision for the target intersection point reaching the intersection point.

Abstract: A curable composition includes—a first component containing aldehyde group-containing compounds which include at least one compound with two or more aldehyde groups and—a second component containing 1,3 keto ester group-containing compounds which include at least one compound with two or more 1,3 keto ester groups of the formula (I), wherein the average molecular weight Mn of at least one of the two components, with respect to the aldehyde or 1,3 keto ester group-containing compounds, ranges from 400 to 20,000 g/mol. The composition is largely free of toxic ingredients and cures in ambient conditions using conventional catalysts quickly in order to form a non-tacky elastic polymer with a high degree of strength and elasticity. The composition is particularly suitable for use as an elastic adhesive, sealant, or coating with a high degree of robustness during production, storage, and processing as well as a high degree of resistance after curing.

Abstract: An amino-functional addition product from the reaction of at least one diamine of the formula (I) with at least one aromatic diepoxide in a stoichiometric ratio in the range of 1.3 to 1.7 mole diamine per 1 mole-equivalent of epoxy groups. The addition product is liquid at room temperature without a diluent and has surprisingly low viscosity. The composition allows the manufacture of low-emission epoxy-resin coatings that have good workability, cure particularly rapidly and with high surface quality in cold and damp conditions, and allow for a wide range of combinations with other amines and diluents.

Abstract: An amine-functional adduct from the reaction of an amine mixture containing at least one diamine of formula (I) and at least one diamine of formula (II) in a weight ratio ranging from 65/35 to 95/5 with at least one diepoxide in a stoichiometric ratio of at least 1.2 moles of diamine of the formula (I) to 1 mole equivalent of epoxide groups. The adduct is liquid at room temperature without diluent even in the presence of a small excess of diamine and is surprisingly low in viscosity. In addition, it is particularly cost-effective, as it is available from an amine mixture that is technically easy to produce. The adduct enables low-emission or emission-free epoxy resin coatings with surprisingly good workability at surprisingly fast curing, which have a high hardness and low tendency to yellowing, and which hardly tend to blushing-related defects even in cold and humid conditions.

Abstract: A silane group-containing polymer obtained from reacting (i) an isocyanate group-containing polymer having an NCO content in the range of 0.3 to 4% by weight and a monomeric diisocyanate content of at most 0.3 wt. % obtained from the reaction of at least one monomeric diisocyanate with at least one polyether polyol in a molar NCO/OH ratio of at least 3/1 and subsequent removal of a major part of the unreacted monomeric diisocyanates by means of a suitable separation process, (ii) with at least one amino-, mercapto- or hydroxysilane in a stoichiometric ratio of at least 1 mole of amino-, mercapto- or hydroxysilane per mole equivalent of isocyanate groups.

Abstract: A non-ionic aldehyde-functional polymer with end groups of formula (I) and an average content of aldehyde groups of 0.15 to 1.2 meq/g. The polymer is suitable for cross-linking compounds with reactive groups such as more particularly cyanoacetate groups, acetoacetate groups or malonate groups at ambient temperatures. It permits a particularly long processing time with fast curing and elastic products that have particularly high tensile strength and tear propagation resistance at high extensibility. It is therefore suitable as a component of elastic adhesives, sealants or coatings that are largely free of toxic ingredients, have low sensitivity to moisture and blistering, have particularly good processability and are particularly robust and durable.

Abstract: A curable composition including a first component containing aldehyde group-containing compounds and a second component containing cyanoacetate group-containing compounds, wherein the average molecular weight Mn of the first and second components, with respect to the aldehyde or cyanoacetate group-containing compounds, ranges from 400 to 20,000 g/mol, and the average functionality of at least one of the two components, with respect to the aldehyde or the cyanoacetate group-containing compounds, is greater than 2.0. The composition is largely free of toxic ingredients and cures in ambient conditions using conventional catalysts quickly and in a trouble-free manner in order to form a non-tacky elastic polymer with a high degree of strength, elasticity, and resistance to tear propagation. The composition is particularly suitable for use as an elastic adhesive, sealant, or coating with a high degree of robustness during production, storage, and processing as well as a high degree of resistance after curing.

Abstract: A solution including 5 to 65 wt. % polyphenols which are solid at room temperature and 35 to 95 wt. % amines of formula (I). The solution is preferably used for preparing a curing agent for epoxy resins. The solution has low viscosity and can be readily mixed with, and is compatible with, epoxy resins. The solution allows in particular readily processable, low-emission epoxy resin coatings having rapid curing, high final hardness, a flawless, glossy surface and low levels of yellowing, which also cure in a problem-free manner in cold conditions to form coatings of high quality and robustness without using any, or using only a small amount of, thinners.

Abstract: An adhesive bond between at least one thermoplastic and an elastomer composition containing at least one polyether having blocked hydroxyl groups as plasticizer. With the adhesive bond, it is possible to bond thermoplastics such as polycarbonate or polystyrene in particular to the elastomer composition essentially without stress cracking and hence reliably and permanently.

Abstract: A method for preparing an acid solution by contacting at least one aromatic carboxylic or sulfonic acid with at least one polyether having blocked hydroxyl groups as a solvent. The polyether having blocked hydroxyl groups is not volatile and exhibits a surprisingly high dissolving capacity for the aromatic carboxylic or sulfonic acid. The acid solution is very compatible in curable compositions and does not cause any emission or odor or migration effects. The acid solution is particularly suitable as a constituent of polyurethane compositions having latent curing agents for accelerating the hydrolysis of the latent reactive groups.

Abstract: A curing agent for epoxy resins, including at least one amine A1 of the formula (I) and at least one amine A2 which is a polyalkyleneamine or polyethyleneimine, where the weight ratio between amine A1 and amine A2 is in the range from 20/1 to 1/2. The curing agent of the invention enables inexpensive and low-emission epoxy resin products having good processability, long pot life, surprisingly rapid curing, especially also under cold conditions, high strength, high bond strengths, high glass transition temperature and a low tendency to yellowing, with formation of surprisingly nice surfaces having barely any blushing-related defects even in the case of two-dimensional application and under moist and cold conditions. Such epoxy resin products are advantageously usable as coating, especially for floors, or as adhesive.

Abstract: The use of an amine of formula (I) for curing epoxy resins, whereby synthetic resin products with a surprisingly high glass transition temperature are formed with particularly low exotherm. The amine of formula (I) enables in particular epoxy resin mouldings, potting compounds and composites which are simple and void for defects to be produced, having beautiful surfaces and allow high service temperatures.

Abstract: A thixotropic agent for increasing the yield point of a curable composition, wherein the thixotropic agent includes (i) at least one urea compound from the reaction of at least one isocyanate with at least one amine and (ii) at least one polyether having blocked hydroxyl groups. The thixotropic agent is preparable in a simple manner and forms a spreadable paste which is firm at room temperature. It is particularly suitable as a constituent of moisture-curing polyurethane or SMP compositions, giving a good increase in the yield point thereof, without adversely affecting storage stability or migration characteristics. It enables phthalate-free adhesives, sealants or coatings that have surprisingly good conveyability coupled with a high yield point, and do not cause any problems with odor or fogging.

Abstract: A Mannich base of formula (1) and the use thereof as a component of a hardener for epoxy resins, wherein the Mannich base of formula (1) has a high Renewable Carbon Index. It makes it possible to produce high-quality and sustainable epoxy resin products which have a surprisingly good processability, cure rapidly and in an unimpeded manner at ambient temperature and form a pleasing surface at a high final hardness.

Abstract: Methods of using a curable composition, the curable composition including at least one polyether having blocked hydroxyl groups as the plasticizer on at least one alkaline substrate. The curable composition is storage-stable, easy to handle and highly elastic after curing, and does not show any tendency to separate or migrate. It enables elastic bonding, sealing or coating of alkaline substrates, such as, in particular, fresh or green concrete or cement mortar, without occurrence of troublesome odors triggered by plasticizer hydrolysis.

Abstract: A composition containing calcium nitrate, at least one epoxy resin and at least one amine of formula (I). The composition allows the manufacture of low-emission epoxy-resin coatings that have good workability and that cure particularly rapidly in cold and damp conditions, without blushing-induced surface defects, thus achieving coatings of in particular high mechanical quality, with a minimal tendency to yellowing.

Abstract: A moisture-curing polyurethane composition having a content of monomeric diisocyanates of at most 0.1 wt %, containing: at least one isocyanate-group-containing polyurethane polymer having a content of monomeric diisocyanates of at most 0.5 wt %, obtained from reaction of at least one monomeric diisocyanate with at least one polyether polyol at a NCO/OH ratio of at least 3/1 and subsequent removal of a large part of monomeric diisocyanates by way of a suitable separating method; and at least one polyether having blocked hydroxyl groups and free of isocyanate groups, as a plasticizer. Moisture-curing polyurethane composition is highly storage-stable when moisture is excluded, can be safely handled without special safety precautions, can be sold without hazard label, can be well processed, has long open time and has fast curing to form elastic material of high strength and extensibility, high cold flexibility, good adhesion properties and high stability with respect to heat and moisture.

Abstract: The use of a hardener that contains at least one amine of formula (I), for curing epoxy resins. The amine of the formula (I) has a high renewable carbon index (RCI) and allows for especially sustainable epoxy resin products. It can be surprisingly easily produced, is low odor, dilutes the epoxy resin especially well and allows rapid and trouble-free hardening with surprising little exothermic effects.

Abstract: An amine of the formula (I) is used for curing of epoxy resins and enables surprisingly rapid and undisrupted curing and high final hardnesses, with formation of nice, faultless surfaces with high gloss even in the case of two-dimensional application and low temperatures. It is suitable as curing agent, co-curing agent and/or incorporable accelerator for epoxy resin products such as, in particular, coatings, adhesives, potting compounds or shaped bodies.