Chemische Werke Huls Aktiengesellschaft

Chemische Werke Huels Aktiengesellschaft

Huels Aktiengesellschaft

Huls Aktiengesellschaft

Chemische Werke Huls Aktiengesellchaft

Roland Streck

Dieter Zerpner

Horst G Haag

Friedrich-Wilhelm Kupper

Wolfgang Kampf

Heinrich Weber

Jaroslaw Monkiewicz

Karl-Heinz Nordsiek

Hans Guenther Wey

Hans Jadamus

Horst Pennewiss

Christoph Herrmann

Klaus-Peter Richter

Wolfgang Schafer

Frank Kraushaar

Michael Stehr

Friedrich-Wilhelm Kuepper

Klaus Meyer

Horst-guenter Haag

Hans-Dieter Maier

Guenter Beckmann

Dirk Hoppe

The invention relates to the use of polymethylalkanes having terminal methyl groups and methylene and ethylidene groups of the formula I ##STR1## in which the total number of C atoms n+2 m+2 is 20 to 100 and the ratio of the methyl and methylene groups to the ethylidene groups is 3 to 20:1 and the ethylidene groups are always separated by at least one methylene group, as biodegradable base oils for lubricants and functional fluids. Suitable polymethylalkanes are obtained by oligomerization of .alpha.,.omega.-diolefins, for example in particular according to P 41 19 332.6, or by pyrolysis of ethene/propane copolymers and subsequent hydrogenation in each case. The polymethylalkanes can be combined with conventional additives and other degradable or non-degradable base oils.

Use of polymethylalkanes as biodegradable base oils in lubricants and

A method of manufacturing methylidene-group-containing .alpha.,.omega.-unsaturated oligomers from .alpha.,.omega.-diolefins in the presence of a catalytic amount of organoaluminum compounds, wherein the .alpha.,.omega.-diolefins are reacted in the liquid phase, at 150.degree.-350.degree. C., and the organoaluminum compounds have formula AlX.sub.3 or AlX.sub.2 H, where X represents an aliphatic, alicyclic, or aromatic hydrocarbon group with 1-30 C atoms. The higher molecular weight hydrocarbons manufactured according to this method are substantially linear oligomers which contain reactive double bonds.

Method of manufacturing methylidene-group-containing

Process for adjusting the cis-trans-double bond configuration in polyalkenamers produced by ring-opening polymerization of cis,cis-1,5-cyclooctadiene or 2-norbornene wherein the polymerization is performed in the presence of isoprene and/or a cyclic olefin with a double-bond pair in the 1,3-position.

Process for adjusting the cis-trans-double bond configuration in

Composite parts of firmly bonded molding materials, comprising a thermoplastic material containing polyphenylene ether, a layer of SBR or SBS rubber or a mixture thereof surrounding the thermoplastic material, if necessary, an intermediate layer comprising a powdered SBR rubber which may contain a filler, and a rubber containing carbon-carbon double bonds covulcanized with the layer of SBR or SBS rubber. The invention also provides a method for producing the composite part comprising treating the thermoplastic material with a solution of a SBR or SBS rubber in an organic solvent or with an aqueous latex of the rubber, if necessary, completely or partially removing the organic solvent or water, if necessary, treating the dried mass with a powdered SBR rubber which may contain a filler, and covulcanizing with a rubber containing carbon-carbon double bonds.

Parts based on polyphenylene ethers and rubbers as well as methods for

Dehalogenation of hydrocarbon oils contaminated with haloorganic compounds is carried out by treatment with alkali or alkaline earth alcoholates (MOR) at 120.degree.-400.degree. C., wherein the alcoholates are soluble in the oils under the reaction conditions.

Method of dehalogenating hydrocarbon oils

Novel adhesion promoters having, on the one hand, groups capable of forming a stable chemical bond with the surface of silicic acids and silicates (siloxane bond) and, on the other hand, groups capable of forming, during vulcanization, a stable chemical bond with an elastomer (sulfur bridges) are provided. They are consequently suitable as adhesion promoters for the production of vulcanizates exhibiting a favorable filler/elastomer bond. They are oligosulfanes of the formula

Adhesion promoters for the production of volcanizates having a favorable

A process for the silylation of unsaturated, naturally occurring oils or the interesterification products thereof, comprises reacting the unsaturated, naturally occurring oils or the interesterification products thereof, at a temperature of 200.degree.-350.degree.C. under inert gas, with silicon compounds of Formula I ##STR1## wherein R is hydrogen or an unsaturated aliphatic hydrocarbon residue of 2-6 carbon atoms,

Process for the silylation of unsaturated, naturally occurring oils or

Silyl-group-containing 1,3-butadiene polymers are stabilized against self crosslinking by addition of epoxides having an epoxy oxygen content of 2-17% by weight.

Low molecular weight 1,3-butadiene polymers containing reactive silyl

A homo- or copolymer of a 1,3-diene having reactive silyl groups bound thereto, and containing 0.4-12% by weight of bound silicon, prepared by reacting at a temperature of 150.degree.-300.degree. C., a 1,3-diene homo- or copolymer, having less than 1% of its aliphatic double bonds conjugated and having a molecular weight (M.sub.n) of 400-8,000, with a silicon compound of the formula ##STR1## wherein R is an unsaturated aliphatic hydrocarbon residue of 2-20 carbon atoms,

Homo- and copolymers of 1,3-dienes containing reactive silyl groups, and

A homo- or copolymer of a 1,3-diene bound to reactive silyl groups, whereby it contains 0.4-12% by weight of bound silicon, is prepared by reacting, at a temperature of 190.degree.-300.degree. C., a 1,3-diene homo- or copolymer, with more than 1% of its aliphatic double bonds in conjugation and having a molecular weight (Mn) of 400-6,000, with a silane of the formula ##STR1## wherein R is an unsaturated aliphatic hydrocarbon radical of 2-20 carbon atoms,

Homo- or copolymers of 1,3-dienes carrying reactive silyl groups, their

A process for the preparation of an extensively amorphous homo- or copolymer of an .alpha.-olefin of 3-32 carbon atoms comprises polymerizing an .alpha.-olefin using a titanium-containing Ziegler-Natta catalyst, the catalyst comprising a mixture of

Process for the production of extensively amorphous homo- and/or

Polybutadiene oils of 400-6,000 molecular weight, having double bonds which are 10 to 60% vinyl, 1 to 15% transvinylene and 25 to 85% cis-vinylene, and 3-20% by weight, corresponding to 0.4 to 3% by weight of bound silicon, of which are reactive silyl polymer units of the formula ##STR1## wherein X is a hydrolyzable group and Y and Z are the same as X or are H and/or alkyl of 1-8 carbon atoms, cycloalkyl of 5-12 carbon atoms, or optionally substituted phenyl; are useful as adhesion promoters for vulcanizable elastomer compositions comprising a mineral filler.

Polymeric adhesion promoters for vulcanizable mixtures of elastomers and

The properties of elastomeric vulcanizates are improved by compounding an elastomer prior to vulcanization with a polydodecenamer reinforcing resin derived from cyclododecene and cyclododecadiene and vulcanizing the compounded elastomer.

Polydodecenamers as reinforcing resins for elastomers

7,8-Epoxy-2-methyloctadecane is economically prepared by a metathesis reaction of 7-methyl-1-octene and 1-dodecene to form 2-methyl-7-octadecene which is then epoxidized to give the desired product.

Process for the preparation of 7,8-epoxy-2-methyloctadecane

Higher alkenes with a double bond in the 9-position, e.g. 9-tricosene and/or 9-heneicosene, are economically prepared by a metathesis reaction of suitable alkene starting materials.

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Marl, Germany

Roland Streck