Abstract:
Process for the preparation of an N-alkyl lactam with improved colour quality, where 0.01 to 10% by weight of a C 1-10 -alcohol or a compound which releases 0.01 to 10% by weight of a C 1-10 -alcohol is added to the N-alkyl lactam. Mixture comprising at least 99.0% by weight of an N-alkyl lactam and in the range from 100 to 5000 ppm by weight of a C 1-10 -alcohol or of an acetal, aminal or an ortho ester which releases in the range from 100 to 5000 ppm by weight of a C 1-10 -alcohol.
Abstract:
The invention relates to the use of n-ethyl-2-pyrrolidone in the form of a solvent, diluent, extraction agent, cleaning agent, degreasing agent, absorption agent and/or dispersion agent, in particular in the form of a partial or complete substitute for n-methyl-2-pyrrolidone (NMP) chlorinated hydrocarbons and/or ether.
Abstract:
The use of 1,5-dimethylpyrrolidone as a solvent, diluent, extractant, detergent, degreaser, absorbent and/or dispersant, especially as a partial or complete replacement for N-methyl-2-pyrrolidone (NMP), chlorinated hydrocarbons and/or ethers.
Abstract:
The invention relates to the utilization of melamine resin fibers, an insulating material containing a) 5 to 95 wt. % melamine resin fibers and b) 5 to 95 wt. % poly(alkylene terephthalate) fibers, and to a method for the production thereof.
Abstract:
The present invention relates to flameproof fabrics based on melarnine resin fibres, fireproof blankets and clothing made therewith and their use for extinguishing fires and protecting people and objects from fire, combustion products and/or extinguishing agents.
Abstract:
The present invention relates to flameproof fabrics based on melarnine resin fibres, fireproof blankets and clothing made therewith and their use for extinguishing fires and protecting people and objects from fire, combustion products and/or extinguishing agents.
Abstract:
The invention relates to a temperature-resistant electrical insulating material which contains melamine resin fibres, polymer fibrils as binding agents and, possibly, a synthetic resin powder and mineral fillers.
Abstract:
The present invention relates to flameproof fabrics based on melarnine resin fibres, fireproof blankets and clothing made therewith and their use for extinguishing fires and protecting people and objects from fire, combustion products and/or extinguishing agents.
Abstract:
The present invention relates to flameproof fabrics based on melarnine resin fibres, fireproof blankets and clothing made therewith and their use for extinguishing fires and protecting people and objects from fire, combustion products and/or extinguishing agents.