摘要:
The invention relates to the use of salts of sulfosuccinic acid esters as internal antistatic agents, take-off and winding aids for transparent cast films of polycarbonates, to a process for the production of cast polycarbonate films and to the cast polycarbonate films themselves containing salts of sulfosuccinic acids and also to the use of the new cast polycarbonate films in the electrical field and optical field.
摘要:
In non-phenolic solvents soluble Polyamid-hydantoins optionally containing ester and/or imide and/or isocyanurate groups are obtained by reacting polyisocyanates with polyfunctional amino carboxylic acid derivatives and a compound containing at least a carboxylic group preferably in the presence of a non-phenolic solvent.
摘要:
The invention relates to transparent multi-layer films made from polyamides and polyolefines using copolyamides of .epsilon.-caprolactam together with diamines and dicarboxylic acids.
摘要:
Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable for preparing printing ribbons, in particular for thermal and electrothermal recording processes.
摘要:
A polycarbonate film obtained by dispersing carbon black in a solution of thermoplastic aromatic polycarbonate, producing a cast film, and subsequently stretching the cast film, is characterized in that its elongation at break is greater than that of a corresponding unstretched similarly filled film having an identical thickness.
摘要:
Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable as electrically insulating films, for example as dielectric for capacitors and as conductor track films.
摘要:
This invention relates to a process for the production of compounds containing at least one (thio)-hydantoin ring in the molecule by reacting a carbodiimide with hydroxy- or mercapto-succinic acid diesters corresponding to the following general formula: ##STR1## wherein R.sup.4 and X are as defined in the description.
摘要:
A process for the production of compounds containing hydantoin groups by reacting .alpha.-amino-carboxylic acid derivatives and organic isocyanates in the presence of acid groups and either in absence of any solvent or in the presence of a non-phenolic solvent.
摘要:
A process for working up the hydrogen fluoride phase of reaction mixtures from fluorination reactions comprising contacting the hydrogen fluoride phase with oleum in order to obtain dried hydrogen fluoride, which can be recycled to the fluorination reaction.