摘要:
The invention relates to DNA which codes for β-tubulin from nematodes of the Strongylidae family, to the polypeptide coded by this DNA, to the use of the DNA for diagnosing anthelmintic resistance in the nematodes concerned and for identifying parasitic nematode species, to the use of the β-tubulin as a component of a vaccine and to a method for identifying novel anthelmintic or antibiotic compounds.
摘要:
Conjugated diolefins, optionally combined with other unsaturated compounds that may be copolymerized with diolefins are polymerized by conducting polymerization of the diolefins in the presence of catalysts based on compounds of rare earth, cyclopentadiene and organoaluminum compounds in the presence of aromatic vinyl compounds as solvents at temperatures ranging from -30 °C to +100 °C. The invention provides a simple method for producing copolymer solutions such as styrol-butadiene-copolymers having different styrol content and different contents of 1,2- and cis-units in aromatic vinyl compounds in relation to the diolefin, which can be further processed to obtain ABS or HIPS.
摘要:
The invention relates to a method for polymerizing conjugated diolefins in the presence of catalysts of rare earths and in the presence of aromatic vinyl compounds, and to the use of these diolefins for producing rubber-modified molding materials, especially of the ABS type and impact-resistant polystyrene (HIPS).