摘要:
The invention relates to the use of sterically hindered amines or n-hydroxy or n-oxyl derivative stabilised ethylene homopolymers and copoloymers thereof in the production of plastic bodies and components for storage and transport of vegetable oil esters.
摘要:
The invention relates to a fuel tank for automobiles connected to an auxiliary tank containing a flame coloring additive, wherein a measured value detector effects feeding of the flame coloring additive from the auxiliary tank to the fuel tank in case of a trouble signal. The invention also relates to a method for mixing a fuel in a fuel tank with a flame coloring additive.
摘要:
Polymerisates of ethylene, which can be obtained by polymerisation of ethylene and, optionally, other comonomers in the presence of a catalyst system containing as active constituents I) a Phillips catalyst; II) a solid distinguishable from I) and containing a constituent which is derived from the metallocene complexes of general formula (A), in which the substituents and indexes have the following meaning: R?1 to R10¿ is hydrogen, C¿1?-to C10-alkyl, 5- to 7-membered cycloalkyl, which may, in turn, have C1-to C6-alkyl groups as substituents, C6-to C15-aryl or arylalkyl and wherein optionally two adjacent residues may also be cyclic groups having 4 to 15 C-atoms, or Si(R?11)¿3, where R11 is C1- to C10-alkyl, C6- to C15-aryl or C3- to C10-cycloalkyl, or wherein the residues R?4 and R9¿ form together a grouping -Y[(R12R13]m where Y is silicon, germanium, tin or carbon; R12, R13 is hydrogen, C¿1?- to C10-alkyl, C3- to C10-cycloalkyl or C6- to C15-aryl; M is a metal of IV to VII subgroup or a metal of the lanthanide series; Z?1, Z2¿ is fluorine, chlorine, bromine, iodine, hydrogen, C¿1?- to C20-alkyl or aryl residue, -OR?14, -OOCR14¿, (a), (b) or (c), where R14 is hydrogen or C¿1?- to C20-alkyl; R?15 is C¿1- to C20-alkyl; m is 1, 2, 3 or 4; n is 0, 1 or 2; r is 0, 1 or 2, wherein the sum n+r is also 0, 1 or 2, and optionally III) an organometallic compound constituent selected from the groups IA, IIA, IIB and IIIA of the periodic system.
摘要:
A process is disclosed for preparing polyalk-1-enes by polymerising alk-1-enes with a bis(cyclopentadienyl)chromium-II compound (I), in which the cyclopentadienyl ring may bear inert organic rests, adsorbed on an inorganic oxidic substrate. The process is characterised in that polymerisation is carried out in the presence of an organometallic compound of a metal of the I to III main group or of a metal hydride, in particular n-butyllithium.
摘要:
The invention relates to a fuel tank for automobiles connected to an auxiliary tank containing a flame coloring additive, wherein a measured value detector effects feeding of the flame coloring additive from the auxiliary tank to the fuel tank in case of a trouble signal. The invention also relates to a method for mixing a fuel in a fuel tank with a flame coloring additive.
摘要:
The invention relates to catalyst systems suitable for the polymerisation of ethylene and alk-1-enes and containing as active components the following: A) a chromium-containing component obtainable by reduction of an oxidised Phillips catalyst with organic compounds selected from the group comprising the linear C4-C10 or cyclic C3-C10 alkenes with at least one internal C=C double bond, 1,3 butadiene, C2-C10 alkines and C1-C10 aldehydes; and optionally B) an organo-metal compound of an element from the first, second, third or fourth main groups or second subsidiary group of the periodic table.
摘要:
A process is disclosed for preparing polyalk-1-enes by polymerising alk-1-enes with a bis(cyclopentadienyl)chromium-II compound (I), in which the cyclopentadienyl ring may bear inert organic rests, adsorbed on an inorganic oxidic substrate. The process is characterised in that polymerisation is carried out in the presence of an organometallic compound of a metal of the I to III main group or of a metal hydride, in particular n-butyllithium.