摘要:
Thermoplastic moulding compounds containingA. 5 to 99 parts by weight of aromatic, high deflection temperature poly(ether sulphone),B. 5 to 95 parts by weight of alpha-methylstyrene polymer andC. 1 to 95 parts by weight of graft polymer of resin-forming monomers on a rubber,a process for their production and their use for the production of mouldings.
摘要:
A process for processing polymers of the ABS type present in emulsion form and effectively stabilized against oxidative attack with optionally continuous recovery and direct reuse of untreated monomers, wherein a combination of at least one phenolic antioxidant having a molecular weight above 300 without ester groups in the molecule and at least one sulfur-containing co-stabilizer having a molecular weight above 500 without ester groups in the molecule is added to the ABS polymer emulsion for stabilization against oxidative degradation.
摘要:
A process for the continuous processing of vinyl polymer latices to produce thermoplastically processible vinyl polymer powder by coagulating a stream of a vinyl polymer latex by the addition of a stream of a coagulant with intensive mixing and shearing in a cascade of vessels at an average residence time per vessel of 10 to 60 minutes and at temperatures from 50 to 120.degree. C., volatile auxiliary substances and residual monomers in the polymer being optionally removed by steam distillation and part of the serum separated from the vinyl polymer being added to the stream of coagulant.
摘要:
A thermoplastic molding composition is disclosed comprising(i) a thermoplastic resin(ii) a low molecular weight additive, and(iii) a specially prepared carrier material magnesium-aluminum-silicate.The carrier material which is characterized by its particle size and low bulk density was found to be effective in minimizing the thermal processing-related evaporation of the low molecular additive.
摘要:
Thermoplastic moulding compounds based on fully aromatic polyester carbonates polyalkylene terephthalates and grafted diene rubber have a well balanced combination of notched impact strength at room temperature and low temperatures and high weld line strength and may be used for the production of moulded articles, in particular by injection moulding.
摘要:
This invention relates to a process for the preparation of high molecular weight aromatic polyethersulphones from diphenols and dihalogenoaryls, characterized in that N-alkylated acid amides are used as solvents and at the same time for the azeotropic removal of the water of reaction.
摘要:
Moulding compounds of fully aromatic polyesters, vinyl copolymers and grafted silicone rubber of a specified composition may be worked up into moulded products with excellent low temperature toughness and surface quality and very high resistance to stress cracking.
摘要:
1. Thermoplastic molding compounds containingA. 5 to 95 parts by weight of an aromatic polycarbonate,B. 1 to 50 parts by weight of a vinyl copolymer andC. 5 to 95 parts by weight of one or more graft polymers obtained by graft polymerization,characterized in that 10 to 100% of component A is replaced by a mixture of two polycarbonates A.1 and A.2 of identical structure,1) the relative solution viscosity of A.1 being 1.18 to 1.24,2) the relative solution viscosity of A.2 being 1.24 to 1.34 and3) the difference between the relative solution viscosities of A.1 and A.2 being greater than or equal to 0.06
摘要:
Thermoplastic molding compositions of A) 70 to 99.5% by weight of a thermoplastic aromatic polyether sulfone or mixtures of several thermoplastic polyether sulfones and B) 30 to 0.5% by weight of a hydrogenated nitrile rubber.