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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Buding; Hartmuth
Address:
Dormagen, DE
No. of patents:
23
Patents:












Patent Number Title Of Patent Date Issued
5403566 Recovery of hydrogenation catalysts from solutions of hydrogenated nitrile rubber April 4, 1995
Rhodium and ruthenium catalysts can be recovered from solutions of hydrogenated nitrile rubber by addition onto organosiloxane-based absorbers.
5387647 Thermoplastic molding compounds of polyamide and hydrogenated nitrile rubber February 7, 1995
The invention relates to thermoplastic molding compounds of 70 to 99.5% by weight thermoplastic polyamides and 30 to 0.5% by weight hydrogenated nitrile rubber and 0 to 29.5% by weight thermoplastic resin components and, optionally, standard additives in typical quantities. These the
5362810 Thermoplastic molding compositions of aromatic polyether sulfone and hydrogenated nitrile rubber November 8, 1994
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.
5187232 Rubber compounds of polychloroprene and hydrogenated nitrile rubber February 16, 1993
Mixtures of polychloroprene and hydrogenated nitrile rubber give vulcanizates combining high modulus with a high dynamic stress absorption capacity.
5034469 Hydrogenation of unsaturated polymers containing nitrile groups July 23, 1991
Hydrogenation products of olefinically unsaturated polymers having nitrile groups prepared in the presence of ruthenium catalysts in a solvent comprising a low-molecular ketone and a secondary or tertiary C.sub.3 -C.sub.6 -alcohol by hydrogenation, can be processed to vulcanizates with
4978771 Process for the selective hydrogenation of unsatuated compounds December 18, 1990
The selective hydrogenation of unsaturated compounds which carry reducible groups containing nitrogen succeeds in a homogeneous phase with the preservation of the reducible groups containing nitrogen, characterized in that a compound of the formulais used as a catalyst, in whichL signifi
4857591 Thermoplastic moulding compositions of ABS and hydrogenated nitrile rubber August 15, 1989
Thermoplastic moulding compositions consisting ofI. 75 to 99.5% by weight of a polymer ofA. 0 to 95% by weight, 95% or less by weight; of a graft copolymer prepared by grafting polymerization ofA.1 5 to 95% by weight of a mixture ofA.1.1 50 to 95% by weight of styrene, .alpha.-methylstyrene,
4853441 Process for hydrogenating nitrile group-containing unsaturated polymers August 1, 1989
An advantageous process for the heterogeneous catalytic hydrogenation of nitrile group-containing unsaturated polymers retaining nitrile groups, is characterised in that palladium supported on alkaline earth metal carbonates is used as hydrogenation catalyst.
4829128 Low molecular weight copolymers and covulcanizates produced therefrom May 9, 1989
Statistical copolymers of from 85 to 52% by weight of a conjugated diene, from 15 to 48% by weight of at least one unsaturated nitrile and from 0 to 10% by weight of further monomers, copolymerizable with diene and nitrile, which have a molecular weight M.sub.n of from 0.5 to 30 kg/mol a
4812587 Process for selective hydrogenation of C--C double bonds in the presence of reducible, nitrogen- March 14, 1989
Carbon-carbon double bonds are hydrogenated selectively in a compound containing a reducible, nitrogen-containing group if the hydrogenation is carried out in the presence of a ruthenium complex catalyst. Also disclosed are new ruthenium complexes for use in such selective hydrogenat
4795788 Process for the selective hydrogenation of unsaturated polymers containing nitrile groups January 3, 1989
Unsaturated polymers containing nitrile groups can be hydrogenated with the preservation of the nitrile group in a homogeneous phase with a catalyst of the formula:in whichX represents hydrogen, halogen or SnCl.sub.3,L.sub.1 represents optionally substituted indenyl,L.sub.2 represents a phos
4778850 Thermoplastic moulding materials made from vinyl chloride polymers and graft polymers and having October 18, 1988
A: Thermoplastic moulding materials made from a vinyl chloride homopolymer or copolymer containing at least 50% by weight of vinyl choloride units,B: a graft polymer, prepared by graft polymerization ofB1: 50 to 85 parts by weight of a mixture of at least two of the monomers styrene, acrylon
4774295 Polymer mixtures and covulcanizates produced therefrom September 27, 1988
Covulcanizates with good mechanical properties obtained from mixtures of (a) from 50 to 5% by weight of chlorinated or chlorosulphonated polyethylene, acrylate rubber or ethylene vinyl alcohol copolymers and (b) from 50 to 95% by weight of partially or completely hydrogenated nitrile
4746707 Process for the selective hydrogenation of unsaturated compounds May 24, 1988
The selective hydrogenation in a homogeneous phase of unsaturated compounds carrying reducible groups containing nitrogen so as to preserve the reducible groups containing nitrogen succeeds with excellent yields if a compound corresponding to the following general formula:whereinR.sub.1
4675248 Polymer mixtures and co-vulcanizates produced therefrom June 23, 1987
Co-vulcanizates which have good mechanical properties, a good resistance to oil, an effective flame resistance and a low smoke gas density are obtained from mixtures of (a) from 95 to 5% by weight of EVA rubber and (b) from 5 to 95% by weight of elastomers which contain nitrile groups an
4673757 Process for selective hydrogenation of C-C double bonds in the presence of reducible, nitrogen-c June 16, 1987
Carbon-carbon double bonds are hydrogenated selectively in a compound containing a reducible, nitrogen-containing group if the hydrogenation is carried out in the presence of a ruthenium complex catalyst. Also disclosed are new ruthenium complexes for use in such selective hydrogenat
4652607 Thermoplastic moulding compositions March 24, 1987
The present invention relates to thermoplastic moulding compositions of (A) thermoplastic polycarbonates, if appropriate mixed with (B) thermoplastic polyalkylene terephthalates and, if appropriate, additionally with (C) elastomeric graft polymers, characterized in that they contain (D)
4647627 Low molecular weight copolymers and covulcanisates produced therefrom March 3, 1987
Statistical copolymers of from 85 to 52% by weight of a conjugated diene, from 15 to 48% by weight of at least one unsaturated nitrile and from 0 to 10% by weight of further monomers, copolymerizable with diene and nitrile, which have a molecular weight M.sub.n of from 0.5 to 30 kg/mol a
4631315 Hydrogenation of nitrile group-containing unsaturated polymers December 23, 1986
Nitrile group-containing polymers are hydrogenated in a homogeneous phase with preservation of the nitrile groups in a low molecular weight ketone as a solvent and with a compound corresponding to formulaas a catalyst, whereinX represents hydrogen, halogenL.sub.1 represents hydrogen, halogen
4631309 Shaped articles for use in the exploration for and/or production of petroleum and natural gas December 23, 1986
Equipment for the exploration and/or production of petroleum and natural gas having elastomeric components have high resistance to materials encountered if the elastomeric components are shaped from a hydrogenated butadiene-acrylonitrile copolymer with a residual double bond content less
4581417 Production of hydrogenated nitrile rubbers April 8, 1986
The hydrogenation of NBR in an aromatic solvent with tris-(triphenylphosphane)-rhodium-(I) halide as catalyst under hydrogen pressures of from 20 to 350 bars and at temperatures in the range from 100.degree. to 145.degree. C. leads to products having degrees of hydrogenation of at le
4576992 Polymer mixtures March 18, 1986
Co-vulcanizates having good mechanical properties are obtained from mixtures of: (a) from 35 to 5%, by weight, of hydrocarbon elastomers; (b) from 65 to 95%, by weight, of nitrile group-containing elastomers having from 25 to 140 nitrile nitrogen atoms and less 12 double bonds per 1000
4565614 Polymer mixtures and co-vulcanizates produced therefrom January 21, 1986
Co-vulcanizates are produced from mixtures of (a) from 95 to 5% by weight of fluoroelastomers and (b) from 5 to 95% by weight of elastomers which contain nitrile groups and have from 25 to 140 nitrile-nitrogen atoms and less than 35 double bonds per 1000 carbon atoms, and (c) conventiona










 
 
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