Patents Assigned to Schill & Seilacher GmbH & Co.
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Patent number: 6984450Abstract: The invention relates to a rubber additive composition which contains at least one rubber additive (a), the at least one additive (a) being encased in coating material (b) accompanied by formation of microcapsules. The additive can in particular be sulphur or another vulcanization agent, a vulcanization accelerator and/or activator.Type: GrantFiled: November 18, 1998Date of Patent: January 10, 2006Assignee: Schill & Seilacher (GmbH & Co.)Inventors: Karl-Hans Menting, Christopher Stone
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Patent number: 6555227Abstract: Combination compounds from curing agents/accelerators and flame-protection agents for the latent curing/acceleration of epoxide resin systems and their endowment with flame-retarding properties, the epoxide resin systems being able to be thermally cured, as well as the products prepared from the epoxide resin systems.Type: GrantFiled: February 2, 2001Date of Patent: April 29, 2003Assignee: Schill & Seilacher (GmbH & Co.)Inventors: Stephan Sprenger, Rainer Utz, Michael Ciesielski, Manfred Doering
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Patent number: 6277901Abstract: The invention relates to an additive compositions for rubbers and rubber mixtures which contain at least one solid, powdery substance and at least one dispersant, the at least one additive substance being coated with the at least one dispersant. The compositions are present as granulate and are prepared by means of a multi-stage fluidized-bed process. The invention also relates to the use of the additive compositions in the preparation of rubber and products obtained using them.Type: GrantFiled: June 26, 1998Date of Patent: August 21, 2001Assignee: Schill & Seilacher GmbH & Co.Inventor: Manfred Hensel
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Publication number: 20010014706Abstract: Combination compounds from curing agents/accelerators and flame-protection agents for the latent curing/acceleration of epoxide resin systems and their endowment with flame-retarding properties, the epoxide resin systems being able to be thermally cured, as well as the products prepared from the epoxide resin systems.Type: ApplicationFiled: February 2, 2001Publication date: August 16, 2001Applicant: SCHILL & SEILACHER (GmbH & Co.)Inventors: Stephan Sprenger, Rainer Utz, Michael Ciesielski, Manfred Doering
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Patent number: 6008145Abstract: A composition for the permanent hydrophilation of polyolefin fibers and filaments and non-woven textile articles (non-wovens) produced therefrom, contains 15 to 75 parts by weight of at least one non-ionic surfactant, and 25 to 85 parts by weight of at least one quaternary ammonium compound and/or at least one cationically modified polydimethyl siloxane. The composition has excellent permanent hydrophilating properties, an excellent cohesion effect and good antistatic properties. When diluted with water, these compositions can therefore be used particularly satisfactorily as spinning preparations for the permanent hydrophilic finishing of polyolefin fibers, polyolefin filaments and non-wovens produced therefrom, in particular fleeces.Type: GrantFiled: November 4, 1997Date of Patent: December 28, 1999Assignee: Schill & Seilacher GmbH & Co.Inventors: Zang-Ju Dzen, Christine Wild
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Patent number: 5952274Abstract: The invention relates to the use of polyhydroxycarboxylamides as an extreme pressure (EP) additive, in particular for lubricants, metalworking fluids and hydraulic fluids. The invention also relates to an extreme pressure (EP) additive containing at least one amide of a polyhydroxycarboxylic acid. Preferred polyhydroxycarboxylamides are the amides of gluconic acid and of glucoheptonic acid.Type: GrantFiled: August 26, 1997Date of Patent: September 14, 1999Assignee: Schill & Seilacher GmbH & Co.Inventors: Horst Rieckert, Karl-Heinz Michel, Jan Zwinselman
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Patent number: 5821376Abstract: The invention relates to a process for the preparation of 2'-hydroxydiphenyl-2-phosphinic acid in the form of a commercial mixture with 6-hydroxy-(6H)-dibenzo-(c,e)(1,2)-oxaphosphorine, the process being carried out on a commercial scale, more simply and more cheaply than previously, as a one-pot reaction without isolating intermediate products and avoiding a distillation step, with said process comprising the steps:(a) o-phenylphenol is added to a mixture of PCl.sub.3 and a Lewis acid as a catalyst while simultaneously heating the reaction mixture, and the reaction mixture is then fluxed;(b) the resulting reaction mixture is allowed to cool and, stirring continuously, is hydrolysed, being mixed first with water and then with a low alkanol;(c) next, the product is crystallised during further stirring, and(d) the crystalline product obtained is sucked off, washed and dried.Type: GrantFiled: October 24, 1997Date of Patent: October 13, 1998Assignee: Schill & Seilacher GmbH & Co.Inventors: Paul Rathfelder, Horst Rieckert, Jorg Dietrich
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Patent number: 5773499Abstract: A natural rubber latex has been preserved and stabilized by at least one water-soluble carboxylic acid salt of the formula R--COO.sup.- M.sup.+, in which R is an alkyl or alkenyl radical having a branched carbon chain and M.sup.+ is a monovalent cation. A process for the preparation of the rubber latex mixture uses a water-soluble carboxylic acid salt for the preservation and stabilization of natural latex.Type: GrantFiled: March 14, 1997Date of Patent: June 30, 1998Assignee: Schill & Seilacher (Gmbh & Co.)Inventors: Henning Umland, Clara Petri
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Patent number: 5721336Abstract: A lubricant and release agent for rubber is made from a polyester of a polyethylene glycol or a mixture of polyethylene glycols with an average of 3 to 20 ethylene oxide units per molecule and a linear dicarboxylic acid or a mixture of linear dicarboxylic acids with an average of 4 to 10 carbon atoms. The use of such a lubricant and release agent for reducing the surface friction and stickiness in the case of rubber is also described.Type: GrantFiled: April 10, 1996Date of Patent: February 24, 1998Assignee: Schill & Seilacher (GmbH & Co.)Inventor: Henning Umland
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Patent number: 5302315Abstract: A vulcanization activator based upon zinc salts of organic carboxylic acids for rubber compounds, which may be vulcanized with sulfur, is disclosed. The vulcanization activator includes homogeneous mixed zinc salts of the following acids:(a) at least one carboxylic acid of the general formula R--COOH, in which R is an alkyl group having 5 to 17 carbon atoms, or a cycloalkyl group having 5 to 17 carbon atoms; and(b) an aromatic carboxylic acid,in which the molar ratio of component (a) and component (b) of the homogeneous zinc-mixed salt is preferably in the range of 1:19 to 19:1.A process for the preparation of the vulcanization activator of the invention is also disclosed.Type: GrantFiled: August 3, 1992Date of Patent: April 12, 1994Assignee: Schill & Seilacher (GmbH & Co.)Inventor: Henning Umland
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Patent number: 5011499Abstract: A tanning agent formulation obtained by reacting 1 mole of an aliphatic .omega.,.omega.'- dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formulaR.sub.1 --O--[(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --(C.sub.4 H.sub.8 O).sub.z ].sub.n --Hwherebyn is an integer from 0 to 10,x+y+z is an integer from 1 to 20, wherein the alkoxy groups may be arranged in any order, andR.sub.1 is H, C.sub.1 -C.sub.12 alkyl, or C.sub.1 C.sub.12 alkylhaving one or more hydroxyl groups,wherein n is not 0 for R.sub.1 =His disclosed. Pelts pretanned with the formulation have improved mold resistance and are free of tanning metal salts and formaldehyde.Type: GrantFiled: April 3, 1989Date of Patent: April 30, 1991Assignee: Schill & Seilacher GmbH & Co.Inventors: Paul Rathfelder, Jozef Sagala, Friedrich Landbeck, Heinz Matschkal
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Patent number: 4470825Abstract: Self-emulsifying lecithin salts are used for the fat-liquoring of leathers and skins. They are obtained by the partial or complete neutralization of industrial lecithins obtained from vegetable oils (acid numbers 10 to 40) with ethoxylated fatty amines.Type: GrantFiled: October 14, 1983Date of Patent: September 11, 1984Assignee: Schill & Seilacher GmbH & Co.Inventors: Fritz Landbeck, Heinz-Peter Matschkal, Paul Rathfelder, Rolf Leberfinger
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Patent number: 4335003Abstract: Disclosed are a process for the preparation of synthetic filaments or fibers and a composition for use as an auxiliary agent in the production of such fibers and filaments. The composition comprises a butylene oxide adduct of a fatty alcohol oxyethylate having the formulaR--O--(C.sub.2 H.sub.4 O).sub.n --(C.sub.4 H.sub.8 O).sub.m HwhereinR=C.sub.8 -C.sub.26,n=1-20, andm=1-5and preferably at least one additional chemical treating agent for the synthetic fibers and filaments. The process includes the step of applying this composition to a fiber or filament.Type: GrantFiled: July 3, 1980Date of Patent: June 15, 1982Assignee: Schill & Seilacher GmbH & Co.Inventors: Christlieb Nordschild, Paul Rathfelder, Horst Rieckert, Dieter Wolber
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Patent number: RE34986Abstract: A tanning agent formulation obtained by reacting 1 mole of an aliphatic .omega.,.omega.'-dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formulaR.sub.1 --O--[(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --C.sub.4 H.sub.8 O).sub.z].sub.n --Hwherebyn is an integer from 0 to 10,x+y+z is an integer from 1 to 20, wherein the alkoxy groups may be arranged in any order, andR.sub.1 is H, C.sub.1 -C.sub.12 alkyl, or C.sub.1 C.sub.12 alkylhaving one or more hydroxyl groups,wherein n is not 0 for R.sub.1 .dbd.His disclosed. Pelts pretanned with the formulation have improved mold resistance and are free of tanning metal salts and formaldehyde.Type: GrantFiled: November 24, 1993Date of Patent: July 4, 1995Assignee: Schill & Seilacher GmbH & Co.Inventors: Paul Rathfelder, Friedrich Landbeck, Heinz Matschkal, Jozef Sagala