Abstract: Reinforced polyolefinic thermoplastic composition comprising a polyolefin, an aluminum and/or magnesium silicate and a maleamic silane.

Abstract: Reinforced, flame-resistant thermoplastic composition consisting of: (A) a polymeric matrix consisting of an olefinic or styrene (co)polymer; (B) a quantity which is sufficient to give flame resistance properties, of an intumescent flame-retarding agent consisting of a mixture of (i) a compound containing nitrogen, insoluble in water, consisting of an oligomer or polymer of a derivative of 1,3,5-triazine and (ii) an ammonium phosphate, and (C) from 5 to 50% by weight with respect to the total composition of a phosphorite having a phosphorous content, expressed as BPL (Bone Phosphate of Lime) of more than 40% by weight.

Abstract: Reinforced polyolefinic thermoplastic composition comprising a polyolefin, a carbonate of a metal appertaining to IIa Group of the Periodic System and a maleamic silane having general formula: ##STR1## wherein R and R.sub.1 are hydrogen or an alkyl radical; R.sub.2 is an alkoxy hydrolysable group or a halogen atom; R.sub.3 is an alkyl radical having from 1 to 8 carbon atoms; X may be a radical of formula: ##STR2## or an aromatic, cycloaliphatic o heterocyclic divalent radical.

Abstract: A thermoplastic composition having a good balance of mechanical and thermal properties, an improved impact strength and a good processability includes a functionalized polyphenylene ether, a polyamide, and an olefinic elastomer containing a vinylaromatic monomer grafted thereon.

Abstract: Thoughened thermoplastic compositions are described having a good balance of mechanical, thermal and process properties, comprising:at least a polyphenylene ether,at least a polyamide,an elastomeric copolymer containing a vinyl aromatic polymer grafted on an olefinic elastomer, andan organic diisocyanate.

Abstract: Rubbery polymer latexes are agglomerated by mixing them with another latex containing:(1) a polymer, different from that present in the latex to be agglomerated and less lipophilic than the latter, selected from (a) homopolymers of alkyl acrylates and methacrylates in which the alkyl has from 1 to 12 carbon atoms, and (b) copolymers of ethylenically unsaturated monomers capable of forming water-insoluble homopolymers, and(2) a non-ionic surfactant consisting of an addition product of ethylene oxide.The agglomerating latex is added in quantities corresponding to 0.1-20 parts by weight of solid polymer and to 0.0001-0.2 parts by weight of surfactant per 100 parts by weight of the rubbery polymer present in the latex to be agglomerated.A particular use of the agglomerated rubbery polymer latexes is in the production of ABS resins.