| Patent Number |
Title Of Patent |
Date Issued |
| 6420489 |
Polymer bromination process in solution |
July 16, 2002 |
| An improved process is provided for the bromination of isoolefin-conjugated diolefin polymers by brominating said polymer in solution in selected halogen-containing hydrocarbons as solvent. There is also provided an improved product of said process wherein the brominated polymer contains |
| 6287376 |
Hydrophobic, oxidic or siliceous fillers and their use |
September 11, 2001 |
| Hydrophobic, oxidic and/or siliceous fillers obtainable by treating an oxidic and/or siliceous filler with 0.1 to 50 parts by weight, per 100 parts by weight of filler, with an adduct of sulfur and unsaturated primary and/or secondary alcohols with 3 to 60 carbon atoms at temperature |
| 6248896 |
Process for the preparation of dithiazolyl disulfides |
June 19, 2001 |
| The invention relates to a new process for the preparation of dithiazolyl-(2,2')-disulfides by oxidation of 2-mercaptothiazoles, to the dithiazolyl-(2,2')-disulfides that can be obtained in this way, and to the use thereof. |
| 6232409 |
Polymer bromination process in solution |
May 15, 2001 |
| An improved process is provided for the bromination of isoolefin-conjugated diolefin polymers by brominating said polymer in solution in selected halogen-containing hydrocarbons as solvent. There is also provided an improved product of said process wherein the brominated polymer contains |
| 6204338 |
Polymer bromination process |
March 20, 2001 |
| An improved process is provided for the bromination of isoolefin-conjugated diolefin polymers by brominating said polymer in solution in a solvent comprising a mixture of an inert saturated paraffinic hydrocarbon and an inert halogen-containing hydrocarbon. There is also provided an impr |
| 6124467 |
Process for the preparation of dithiazolyl disulfides |
September 26, 2000 |
| The invention relates to a new process for the preparation of dithiazolyl-(2,2')-disulfides by oxidation of 2-mercaptothiazoles, to the dithiazolyl-(2,2')-disulfides that can be obtained in this way, and to the use thereof. |
| 6034169 |
Mixtures of aqueous polymer dispersions |
March 7, 2000 |
| The present invention is directed to a novel adhesive which is a mixture ofA) at least one aqueous dispersion of a polymer which has a softening point below 70.degree. C., said dispersion containing 5 to 70% by weight solids and having a film-forming temperature below 70.degree. C., andB) at |
| 5977225 |
Rubber mixtures containing polysulphide polyether silanes |
November 2, 1999 |
| The rubber mixtures according to the invention, containing at least one rubber, a filler, optionally additional rubber auxiliaries and at least one polysulphide polyether silane corresponding to the formulaare used for the preparation of rubber vulcanisates, from which in particular tire |
| 5925791 |
Process for producing 4-aminodiphenylamine |
July 20, 1999 |
| 4-aminodiphenylamines are produced by hydrogenating nitrobenzene with hydrogen in the presence of bases containing hydroxide and/or oxide groups and heterogeneous catalysts and in the presence of inert aprotic solvents at temperatures of 0 to 200.degree. C. and pressures of 0.1 to 150 ba |
| 5883198 |
Polymer bromination process |
March 16, 1999 |
| An improved process is provided for the bromination of isoolefin conjugated diolefin polymers by brominating said polymer in solution in a solvent comprising a mixture of an inert saturated paraffinic hydrocarbon and an inert halogen-containing hydrocarbon. There is also provided an impr |
| 5569723 |
Process for the bromination of alkyl rubbers |
October 29, 1996 |
| C.sub.4 -C.sub.16 alkyl rubbers are brominated by reacting the alkyl rubbers with bromine in the presence of organic azo compounds and/or alkali metal and/or alkaline earth metal hypochlorites and in the presence of linear, branched and/or cyclic alkanes and water at temperatures of |
| 5384385 |
Two-component polyurethane reactive compositions |
January 24, 1995 |
| Disclosed herein are two-component polyurethane reactive compositions containing polyisocyanates and components carrying active hydrogen which are stabilized against separation with a compound in solution containing a NH group or NH.sub.2 group and a C--N multiple bond or N--N multiple b |
| 5349040 |
Two-component polyurethane adhesives |
September 20, 1994 |
| Disclosed herein is a two-component polyurethane adhesive containing an isocyanate component a), an active hydrogen containing component which is stable against demixing b), optionally a catalyst for the reaction of a) with b) and optionally an auxiliary agent and an additive, characteri |
| 5306740 |
Process for the production of brominated chlorine-substituted poly-1,3-butadiene |
April 26, 1994 |
| Brominated chlorine-substituted poly-1,3-butadiene is produced by a process in which an aqueous chlorine-substituted poly-1,3-butadiene latex is reacted in aqueous phase with a brominating agent in the presence of a radical-forming catalyst and/or in the presence of light at a pH value |
| 5215618 |
A process for bonding substrates with an ester group-containing hot melt adhesive |
June 1, 1993 |
| Disclosed herein is a process for bonding substrates comprising applying a hot-melt adhesive to the surface of at least one of the substrates and contacting the surface of said substrate with the surface of the other substrate, said adhesive containing an ester group-containing polyi |
| 5106446 |
Polyurethane mixtures and the use thereof as adhesives |
April 21, 1992 |
| The present invention is directed to a mixture which can be used as an adhesive. The mixture broadly contains 1) a hydroxy group containing polyurethane, and 2) a polycarbonate and/or a polycaprolactone. |
| 4913971 |
Adhesive mixture |
April 3, 1990 |
| Mixtures of(A) from 20 to 99 parts by weight of a soluble polyurethane,(B) up to 50 parts by weight of an aromatic vinyl compound/diene block polymer,(C) from 0.5 to 50 parts by weight of a modified aromatic vinyl compound/diene polymer and(D) from 0 to 10 parts by weight of a polyisocyanate |
| 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 |
| 4720433 |
Rubber articles consisting of different rubber layers, the production and use thereof |
January 19, 1988 |
| Rubber articles consisting of at least two layers consisting of at least two different elastomers, the layers being joined tightly together by sulphur vulcanization, are obtained by using a diene rubber as the first elastomer and a hydrogenated NBR-rubber with a degree of hydrogenation o |
| 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 |
| 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 |
| 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 |
| 4528388 |
Xanthogen disulphides |
July 9, 1985 |
| Xanthogen disulphides of the following formula: ##STR1## wherein R and R.sub.1 independently represent hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.5 -C.sub.8 -cycloalkyl or an oxygen-containing heterocyclic ring system having from 5 to 8 ring members and optionally mono- or tri-subst |
| 4444739 |
Process for the production of cyanogen chloride from hydrocyanic acid and chlorine |
April 24, 1984 |
| An improved process for the production of cyanogen chloride is disclosed according to which liquid hydrocyanic acid and gaseous chlorine are reacted in an aqueous medium. The liquid hydrocyanic acid and chlorine are introduced into a column-shaped reactor via at least one two-component |
| 4427817 |
Open-chain acetals or ketals as non-discoloring antiozonants for rubber |
January 24, 1984 |
| The use of open-chain acetals or ketals corresponding to the following general formula ##STR1## as non-discoloring anti-ozonants for natural and/or synthetic rubber. |
| 4377700 |
Process for the preparation of N-(cyclohexylthio)-phthalimide |
March 22, 1983 |
| A process for the preparation of N-(cyclohexylthio)-phthalimide by the reaction of phthalimide with cyclohexylsulphenylchloride in the presence of a base, characterized in that an alkali or alkaline earth metal hydroxide is used as the base. |
