Abstract:
The invention relates to a method for producing 2-alkyl polyisobutenylphenols and their Mannich adducts, to compositions that are obtained according to said method and to the use of said compositions.
Abstract:
The invention relates to polyisobutene phosphonic acids and the derivatives thereof, to a method for the production thereof, and to the use of the same.
Abstract:
The invention relates to a method for producing a polyether compound containing a polymer provided with a polyether chain whose maximum content of alkylene oxide repeated units of oxides, the derivatives of branched olefins and/or olefins devoid of double liaisons alpha and linear alpha -olefins. Said invention also relates to polyether compounds produced by the inventive method and to the use thereof when they are added to fuels or lubricants.
Abstract:
The invention relates to a method for producing carboxyl-terminated polyisobutenes by ozonolysis of polyisobutenes terminated by an ethylenically unsaturated double bond.
Abstract:
The invention relates to a method for producing polyisobutenylphenols by alkylation of an aromatic hydroxy compound with substantially singly ethylenically unsaturated polyisobutylenes substantially homopolymers in the presence of a Lewis Acid alkylation catalyst. The method is characterised in that the polyisobutylene contains at least 35 mol- % of a double bond in position beta .
Abstract:
The invention relates to a method for producing polyisobutenes, wherein at least 60 mol % of the polymer chains have at least one olefinically unsaturated terminal group, by cationically polymerizing isobutene or isobutene-containing monomer mixtures in a condensed phase. The inventive method is characterized in that the polymerization is carried out in the presence of an initiator system comprising: i) a Lewis acid selected among covalent metal chlorides and metalloid chlorides, and; ii) at least one organic compound (I) having at least one functional group FG that, together with the Lewis acid, forms a carbocation or a cationogenic complex under polymerization conditions, whereby FG is selected among acyloxy, alkoxy or halogen, which are bound to a secondary or tertiary C atom, to an allylic C atom or to a benzylic C atom. Said polymerization is carried out in a solvent that is inert to the Lewis acid, whereby the Lewis acid is used in molar deficiency with regard to the functional groups FG.
Abstract:
The invention relates to a method for the production of polyisobutenylphenoles by alkylation of an aromatic hydroxy compound with substantially singly ethylenically unsaturated and substantially homopolymer polyisobutenes in the presence of a Lewis-acid alkylation catalyst, characterised in that, ether is used as an additional co-catalyst, whereby in the case of BF3 the ether has a molecular weight as a Lewis-acid of at least 102 g/mol.
Abstract:
The invention relates to the use of polynuclear phenolic compounds with up to 20 bezene nuclei per molecule, obtained by reaction of a tetrahydrobenzoxazine I, where R 1 = a hydrocarbon group and R 2 , R 3 , R 4 and R 5 independently = H, OH, or hydrocarbon groups, with one or more of the same or different phenols II, where R 7 , R 8 , R 9 and R 10 independently = H, OH or hydrocarbon groups and/or with one or more of the same or different tetrahydrobenzoxazines I, with the proviso that at least one of the substituents has 13 to 3,000 carbon atoms and the remaining substituents, when hydrocarbon groups, have 1 to 20 carbon atoms, as stabilisers for stabilising inanimate organic materials against the effects of light, acid and heat.
Abstract:
The invention relates to a polymer composition containing at component that contains at least one polyisobutene based on one middle molecular weight polyisobutene and at least another polymer different therefrom.
Abstract:
The invention relates to phosphoric esters of polyisobutene-substituted aromatic hydroxy compounds hydroxy compounds, to a method for the production thereof and to their use.