摘要:
Thermoplastic moulding compositions with improved notched impact strength consisting of a polyamide and a graft product of polybutadiene or copolymers of butadiene as graft substrate and of a mixture of an ester of (meth)acrylic acid, (meth)acrylonitrile and/or (meth)acrylamide as graft monomers.
摘要:
Polymer blends consisting of from 60-99 % by weight of polyamide and of from 1-40 % by weight of a graft product of polyethylene or copolymers of ethylene with grafted units of (meth)acrylic acid and/or (meth)acrylic acid derivatives and/or maleic acid which graft products have been prepared by a special grafting process.
摘要:
High impact resistant polymer blends comprising 70-99% by weight of a polyamide and 1-30% by weight of a polyethylene having been oxidized by a special process.
摘要:
The present invention relates to mixtures comprising(a) thermoplastic aromatic polycarbonates having Mw (weight average molecular weight) of 10,000 to 200,000, preferably 20,000 to 80,000 (determined by measuring the relative viscosity .eta.rel in CH.sub.2 Cl.sub.2 at 25.degree. C. and a concentration of 0,5 g per 100 ml CH.sub.2 Cl.sub.2(b) thermoplastic polymers of C.sub.1 -C.sub.4 --alkyl methacrylates having Mw (weight average moleculr weight) of 10,000 to 1,000,000 (measured in dimethylformamide at 25.degree. C.) and(c) particulate graft polymers of methyl methacrylate onto a particulate, highly crosslinked alkyl acrylate-rubber which can optionally also contain a crosslinked diene rubber as an inner core, as well as to thermoplastic moulding compositions based on thermoplastic ABS resins or thermoplastic SAN resins which contain the three-component mixture (a)+(b)+(c).
摘要:
A mixture comprising 1. from 70 to 99% by weight of a predominantly aromatic polycarbonate; and 2. from 30 to 1% by weight of a polyolefin graft polymer of (a) 70 to 95% by weight of a graft base consisting of a homopolymer of aliphatic and/or aromatic monoolefins or of a copolymer of these olefins, and up to 50% by weight of other monoolefinically unsaturated, radially polymerizable compounds and/or up to 5% by weight of diolefins, and (b) 5 to 30% by weight of at least one graft-polymerizable vinyl compound, the olefin graft polymers having been obtained by contacting a melt of the graft base (a) with oxygen or an oxygen-containing gas for at most 10 min. with intensive mixing under a pressure of from 1 to 150 bars and at a temperature of from 80.degree. C. to 300.degree. C., adding the vinyl compounds (b) to be grafted on immediately afterwards with intensive mixing in the absence of oxygen or oxygen-containing gas and removing the residual monomers after the graft polymerization reaction.
摘要:
Self-extinguishing, flameproved, reinforced and/or filled polyamide moulding compositions containing as flameproofing agents a combination of a phenol-aldehyde resin and an alkali metal - or ammonium - polyphosphate.
摘要:
Flameproof reinforced and/or filled polyamide moulding compositions containing a combination of red phosphorus and phenol/aldehyde resins as flameproofing agent.
摘要:
Flame-proofed, unreinforced unfilled polyamide moulding compositions containing as a flame-proofing combination a mixture of a phenol/aldehyde condensation resin and red phosphorus.
摘要:
Self-extinguishing optionally reinforced polyamide moulding compositions containing as flameproofing combination or phenol/aldehyde resin and phosphoryl nitride oxide or a precursor thereof.
摘要:
Thermoplastic molding compositions comprising a polycarbonate resin, a thermoplastic polyester and an impact modifier were found to maintain their impact performance, especially at low temperatures, while exhibiting a reduced melt viscosity upon the blending therewith a relatively small amount of a certain ester plasticizer.