Abstract:
THE PRESENT INVENTION RELATED TO ACRYLONITRILE GRAFT POLYMERS CONTAINING AT LEAST 50% BY WEIGHT OF GRAFT POLYMERISED ACRYLONITRILE AND OPTIONALLY UP TO 10% BY WEIGHT OF ANOTHER GRAFT POLYMERISED ACRYLIC, METHACRYLIC, VINYL OR VINYLIDENE COMONOMER AND, AS GRAFT SUBSTRATE FROM 5 TO 40% BY WEIGHT OF A LINER POLYETHER CONTAINING TERTIARY NITROGEN ATOMS OR A DERIVATIVE THEREOF WHICH IS QUATERNIZED ON THE NITROGEN.
Abstract:
2-METHYLENE PROPANE PHOSPHONIC ACID ESTERS AND THEIR COPOLYMERS WITH ACRYLONITRILE ARE THE OBJECTS OF THE INVENTION. The fibres produced from the copolymers are flame-resistant and show increased thermal stability, improved affinity for dyes and fastness to light. The copolymers of acrylonitrile and 2methylene propane phosphonic acid esters - in addition to other comonomers - are produced by polymerizing the monomers in solution or - preferably - in an aqueous suspension or emulsion. Formed articles, such as fibres from said copolymers can be prepared by spinning a solution of the copolymer in an organic solvent p.i. in dimethyl formamide.
Abstract:
High molecular weight aromatic copolyamides which contain a small proportion of structural units having hydantoin rings are disclosed. The presence of hydantoin ring units in the copolyamide results in an increased moisture absorption capacity. By using small amounts of hydantoin units, the good physical properties of the corresponding hydantoin-free polyamide are substantially retained while the moisture absorption is significantly increased. Larger amounts of hydantoin units than contemplated (15 mole % and more) do not improve the moisture absorption further and adversely affect the physical properties. The copolyamides are useful in textile applications in which the improved moisture absorption serves to make clothing prepared from such textiles more comfortable.
Abstract:
e of an acrylonitrile polymer containing at least 60% by weight of acrylonitrile in copolymerized form containing as an antistatic additiv from 0.5 to 15 % by weight, based on the total mixture, of at least one polyether polyurethane compound of the general formula
in which Z represents the radical
or R, where R denotes a C1-18-alkyl, cycloalkyl, aryl, aralkyl or alkaryl radical said radical being substituted by halogen or alkyl or not, R'' represents an alkylene, cycloalkylene, arylene, aralkylene or alkarylene radical, said radical being substituted by halogen or alkyl or not, p and n denote integers of from 5 to 50 being identical
or different (when Z R) and m represents an integer of from 0 to 10 when Z denotes the group
or it represents an integer of from 1 to 10 when Z denotes the group R, and q represents the integer 1 (when Z R) or an integer of from 0 or 1
Abstract:
Acid-modified terephthalic acid polyesters containing structural elements of 2-sulfonatomethyl-propanediol-(1,3). The polyesters are easily dyeable with basic dyestuffs and can be spun from the melt into filaments.
Abstract:
PROCESS FOR THE PRODUCTION OF DIARYLETHERS BY REACTION OF AN AROMATIC COMPOUND CONTAINING A NITRO GROUP AND A HALOGEN ATOM IN THE PARA POSITION TO EACH OTHER WITH AN AQUEOUS SOLUTION OF AN ALKALI HYDROXIDE IN A POLAR ORGANIC SOLVENT.