摘要:
The present invention relates to a method for agglomerating finely divided rubber latices by adding an aqueous solution of a water-soluble amphiphilic copolymer that contains at least one hydrophilic portion and at least one hydrophobic portion.
摘要:
Thermoplastic molding composition characterized in that the polymer proportion soluble in dichloromethane has a c50 value of acrylonitrile of ≧28 wt. % and a chemical distribution (c90−c10 value) of the acrylonitrile of ≧5 wt. % is disclosed. The composition is characterized by its improved processability by extrusion and thermoforming.
摘要:
A thermoplastic molding composition that features a combination of good notched impact strength and thermoplastic processability is disclosed. The composition contains one or more thermoplastic (co)polymers, a graft polymer and a combination of at least 3 components chosen from a compound (I) having at least one structural unit conforming to where M=a metal, and n=the valence of the metal M, and a compound (II) having at least one structural unit conforming to and a compound (III) having at least one structural unit conforming to and a compound (IV) that contains none of the structural units of (I), (II) and (III).
摘要:
A thermoplastic molding composition of the ABS type is disclosed. The composition that contains an elastic-thermoplastic graft polymer and a copolymer comprising styrene and acrylonitrile, is characterized in that the graft polymer is a product of radical emulsion polymerization process that is initiated by a combination of a persulfate compound and at least one azo compound and in that a first mixture that contains said azo compound and a first amount of monomers is fed in to a rubber in latex form and in a subsequent reaction step a second mixture is introduced that contains the persulfate compound and a second amount of monomers.
摘要:
A molding composition containing a graft polymer is disclosed. The graft is a product of a free-radical emulsion polymerization of resin-forming vinyl monomers in the presence of rubber present in latex form having a glass transition temperature of ≦0° C. using an initiator combination comprising a persulfate compound and a redox initiator system. The process for preparing the graft polymer entails adding the persulfate compound at the beginning of the graft polymerization reaction and a later addition of the redox initiator. The composition that features good gloss and flowability is suitable for the preparation of molded articles.
摘要:
A thermoplastic molding composition that exhibits antistatic properties and improved color stability is disclosed. The composition contains a major amount of resinous component that contains A) 0 to 100 % by weight of one or more graft polymers B) 100 to 0 % by weight of a thermoplastic vinyl (co)polymer, and a minor amount of a mixture of a) a modified or unmodified polyalkylene ethers and b) a phenolic oxidant wherein the weight ratio (a):(b) is 20:1 to 1:1.
摘要:
A thermoplastic molding composition suitable for preparing molded articles having improved mechanical properties is disclosed. The composition contains A) a (co)polymer of at least one monomer selected from the group consisting of styrene, &agr;-methylstyrene, nuclear-substituted styrene, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride and N-substituted maleimide , and B) a graft polymer of B.1) at least one member selected from the group consisting of styrene, &agr;-methylstyrene, nuclear-substituted styrene, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride and N-substituted maleimide on B.2) a rubber having a glass transition temperature of ≦10° C. and C) a mixture of at least 3 components selected from I) metallic compounds, II) esters III) amides and IV) certain specified compounds exemplified by oil or wax.
摘要:
The invention provides antistatic, thermoplastic moulding compositions with improved properties based on optionally rubber-modified polymers of vinyl aromatics, e.g. styrene and/or &agr;-methyl styrene and acrylonitrile and/or acrylates, which contain a special acid-reacting polyether as the antistatic agent.