Abstract: Embodiments of the invention provide a cutting blade assembly operably coupleable to a fluid pump. The cutting blade assembly comprises a cutting plate and a cutting hub. The cutting plate may have a front axial surface, an opening, and a plurality of cutting features. Each of the plurality of cutting features may define a pair of cutting edges. The cutting hub may be disposed at least partially within the opening of the cutting plate and may have a cutting arm and fin adjacent to the front axial surface. The cutting arm may define an arcuate front surface having a leading edge. When the cutting plate and the cutting hub are rotated relative to each other, the leading edge of the cutting arm may pass adjacent to the plurality of cutting features so that the relative rotation of the cutting plate and the cutting hub defines a cutting action between the cutting arm and each cutting feature.

Abstract: Embodiments of the invention provide a cutting blade assembly operably coupleable to a fluid pump. The cutting blade assembly comprises a cutting plate and a cutting hub. The cutting plate may have a front axial surface, an opening, and a plurality of cutting features. Each of the plurality of cutting features may define a pair of cutting edges. The cutting hub may be disposed at least partially within the opening of the cutting plate and may have a cutting arm and fin adjacent to the front axial surface. The cutting arm may define an arcuate front surface having a leading edge. When the cutting plate and the cutting hub are rotated relative to each other, the leading edge of the cutting arm may pass adjacent to the plurality of cutting features so that the relative rotation of the cutting plate and the cutting hub defines a cutting action between the cutting arm and each cutting feature.

Abstract: The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.

Abstract: Condensates containing acid groups and based on a) aldehydes, the aldehyde being selected from the group consisting of the dialdehydes of groups C2 to C12, and b) at least one compound carrying NH2 groups, acid group being understood as meaning sulpho and/or carboxyl groups and salts thereof.

Abstract: The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.

Abstract: Condensates containing acid groups and based on a) at least one monoaldehyde from the group consisting of C2-C12-monoaldehydes and b) at least one compound carrying an NH2 group, acid group being understood as meaning sulpho and/or carboxyl groups and salts thereof.

Abstract: (Co)polymers which contain a) structural units of the general formula I in which W represents a trivalent radical from the group in which * indicates the orientation for the incorporation of the radical W into the formula I, and Z represents the radicals —OH, —O?M+ or —N—R1R2, in which R1 and R2, independently of one another, represent hydrogen, optionally substituted alkyl radicals, alkenyl radicals, aralkyl radicals or cycloalkyl radicals, which may be interrupted by 0 atoms, N atoms, Si atoms or amido, carbonate, urethane, urea, allophanate, biuret or isocyanurate groups or mixtures thereof, and M+ represents H+ or an alkali metal ion, an NH4 ion or a primary, secondary, tertiary or quaternary aliphatic ammonium radical which preferably carries a C1-C22-alkyl or C1-C22-hydroxyalkyl group, b) at least 10 mol %, based on the units of the formula I, of structural units of the general formula Ia in which R3 represents a hydrocarbon radical having C1-C60-atoms, preferably a saturated C1-C60-alk

Abstract: The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.