摘要:
This invention relates to a process for standardized preparation of thermoplastic polyurethane elastomers by deactivating metal traces during the reaction, at an NCO:OH ratio of between about 0.85 and about 1.2:1, of(a) substantially linear hydroxyl-terminated polyols;(b) organic diisocyanates;(c) optional diol chain extenders; and(d) optional catalysts or other auxiliaries and/or additives, in the presence of(e) 0.000001 to 0.3% by weight, based on the total weight of the other components, of certain phosphorus compounds, wherein the phosphorus compounds are added to one or more of the other components before or during preparation of the thermoplastic polyurethane elastomers.
摘要:
This invention relates to aliphatic polycarbonates including sequential copolymers based on cyclic aliphatic carbonates and esters and block copolymers of blocks of polymerised cyclic aliphatic carbonates and blocks of polymerised vinyl compounds stabilized against thermal degradation containing 0.01 to 3.0% by weight, based on polymer, of a compound of trivalent phosphorus.
摘要:
Flameproofing additives for plastics materials consisting of a coating- and carrier material. The coating consists of metal oxides, the carrier of organic compounds, in which halogen is bound to carbon. The combination of the two components of the flameproofing additives has an inhibiting action on the fire and gives plastics materials an effective fire protection according to the invention, for example, V-2 to V-0 according to UL 94.
摘要:
The present invention relates to new flameproofing agent combinations of bisphthalimides and tetrafluoroethylene polymers and their use for providing thermoplastic moulding compositions of halogenated polycarbonates and ABS polymers with a flame-repellent finish.
摘要:
Transparent thermoplastic moulding compositions having improved mechanical properties consist essentially of a cellulose ester of aliphatic C.sub.1 -C.sub.5 -carboxylic acids and a graft copolymer of an ethylene vinyl ester copolymer having grafted thereon polymerized units of vinyl esters and/or alkyl esters of acrylic and/or methacrylic acid and, optionally, C.sub.2 -C.sub.4 -olefins.
摘要:
The present invention relates to thermoplastic moulding compositions which are provided with a flame-repellent finish by adding phosph(on)ate esters, tetrafluoroethylene polymers and, if appropriate, halogen compounds.
摘要:
The present invention relates to flame-retarding moulding compositions which are based on thermoplastic polycarbonates, copolymers of styrenes and maleic anhydride, phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers, small amounts of graft polymers and optionally halogen compounds and which in addition can contain stabilizers, pigments, flow agents, release agents and/or antistatics, and to a process for their preparation.
摘要:
The present invention relates to flame-retarding, thermoplastic polycarbonate moulding materials of high impact strength consisting of halogen-containing polycarbonates, copolymers formed from styrenes and (meth)acrylonitrile, phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers and small amounts of graft polymers and, if appropriate, effective amounts of stabilizers, pigments, lubricants, mould release agents and/or antistatic agents, and to a process for the preparation thereof.
摘要:
The present invention provides thermoplastic flame-retardant moulding compositions containing halogen-containing copolycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, if desired, further known additives.
摘要:
This invention relates to self-extinguishing thermoplastic moulding compositions of an aromatic polycarbonate containing a co-condensed halogen, a thermoplastic copolymer containing nucleus-alkylated styrene and an ABS as graft copolymer.