Patents by Inventor Gerhard Rytz
Gerhard Rytz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130280518Abstract: The invention relates to a building material (M2), which can be produced by combining 30 to 70% by weight of a cement or respectively hydraulic binder, 20 to 80% by weight of water and 0.05 to 15% by weight of a porous and/or pore-forming material; or by combining 10 to 80% by weight of a cement or respectively hydraulic binder, 10 to 80% by weight of a pulverulent and/or granular mineral filler, 20 to 80% by weight of water and 0.05 to 15% by weight of a porous and/or pore-forming material; and in each case by subsequent mixing of the combined components for 1 to 15 minutes. The invention furthermore relates to a building system element (1; 2) with a first section (11; 21) containing particularly compact solid particles distributed in a hardened cement matrix (M1) and fixed thereby, and with a second section (12; 22) containing pores distributed in a hardened cement matrix (M2). This second section (12; 22) can be composed of the building material (M2) according to the invention.Type: ApplicationFiled: June 17, 2011Publication date: October 24, 2013Applicant: VICATInventors: Beat Stähli, Gerhard Rytz, Beat Ruchti
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Patent number: 6706215Abstract: Coatings comprising A) a binder based on an organic polymer and B) as stabilizer against damage by light, heat and oxygen, a 2-(2′-hydroxyphenyl)-1,3-pyrimidine of the formula I in which the radicals R1 to R6 are as defined in claim 1 have an outstanding resistance to the damaging effects of light, oxygen and heat. Compounds of the formula Ib defined in claim 18 are suitable in general for the stabilization of organic material.Type: GrantFiled: June 23, 1997Date of Patent: March 16, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Valet, Jean-Luc Birbaum, Gerhard Rytz, Norbert Wüms
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Patent number: 6455442Abstract: This invention relates to a process for the preparation of UV protective coatings by plasma-enhanced vacuum deposition, using hydroxyphenyl-s-triazines as UV absorbers. This invention also relates to the use of hydroxyphenyl-s-triazines in plasma-enhanced vacuum depositions and to the substrates coated by this process.Type: GrantFiled: January 2, 2001Date of Patent: September 24, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Bauer, Werner Kaufmann, Gerhard Rytz
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Patent number: 6284821Abstract: A description is given of compounds of the formula I in which R1 is C1-C18alkyl; C5-C12cycloalkyl; C3-C6alkenyl; phenyl; C1-C18alkyl which is substituted by phenyl, OH, C1-C18alkoxy, C5-C12cycloalkoxy, C3-C18alkenyloxy, halogen, —COOH, —COOR4, —O—CO—R5, —O—CO—O—R6, —CO—NH2, —CO—NHR7, —CO—N(R7)(R8), CN, NH2, NHR7, —N(R7)(R8), —NH—CO—R5, phenoxy, C1-C18alkyl-substituted phenoxy, phenyl-C1-C4alkoxy, C6-C15bicycloalkoxy, C6-C15bicycloalkylalkoxy, C6-C15bicycloalkenylalkoxy, or C6-C15tricycloalkoxy; C5-C12cycloalkyl which is substituted by OH, C1-C4alkyl, C2-C6alkenyl or —O—CO—R5; glycidyl; —CO—R9 or —SO2—R10; or R1 is C3-C50alkyl which is interrupted by one or more oxygen atoms and/or substituted by OH, phenoxy or C7-C18alkylphenoxy; or R1 denotes the specific polymerizable radicals indicated in claim 1; R2 is C6-C18alky1; C2-C6alkenyl; pType: GrantFiled: November 17, 2000Date of Patent: September 4, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Dietmar Hüglin, Vien Van Toan, Helmut Luther, Christophe Bulliard, Gerhard Rytz
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Patent number: 6184375Abstract: A description is given of compounds of the formula I in which R1 is C1-C18alkyl; C5-C12cycloalkyl; C3-C6alkenyl; phenyl; C1-C18alkyl which is substituted by phenyl, OH, C1-C18alkoxy, C5-C12cycloalkoxy, C3-C18alkenyloxy, halogen, —COOH, —COOR4, —O—CO—R5, —O—CO—O—R6, —CO—NH2, —CO—NHR7, —CO—N(R7)(R8), CN, NH2, NHR7, —N(R7)(R8), —NH—CO—R5, phenoxy, C1-C18alkyl-substituted phenoxy, phenyl-C1-C4alkoxy, C6-C15bicycloalkoxy, C6-C15bicycloalkylalkoxy, C6-C15bicycloalkenylalkoxy, or C6-C15tricycloalkoxy; C5-C12cycloalkyl which is substituted by OH, C1-C4alkyl, C2-C6alkenyl or —O—CO—R5; glycidyl; —CO—R9 or —SO2—R10; or R1 is C3-C50alkyl which is interrupted by one or more oxygen atoms and/or substituted by OH, phenoxy or C7-C18alkylphenoxy; or R1 denotes the specific polymerizable radicals indicated in claim 1; R2 is C6-C18alkyl; C2-C6alkenyl; pType: GrantFiled: November 19, 1997Date of Patent: February 6, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Dietmar Hüglin, Vien Van Toan, Helmut Luther, Christophe Bulliard, Gerhard Rytz
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Patent number: 5869588Abstract: The invention relates to novel 2-hydroxyphenyltriazines and to homopolymers and copolymers obtainable therefrom, as described in greater detail in claims 1 and 5; the novel compounds can be used as UV absorbers in or for organic materials.Type: GrantFiled: May 29, 1997Date of Patent: February 9, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Vien Van Toan, David George Leppard, Gerhard Rytz, Norbert Wurms, Pascal Hayoz
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Patent number: 5804622Abstract: A stabilizer combination, principally for PVC, is described, comprising A at least one zinc carboxylate B at least one compound of the formula ##STR1## in which R.sub.1 to R.sub.6 are as defined in claim 1.Type: GrantFiled: March 17, 1997Date of Patent: September 8, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Horst Zinke, Wolfgang Wehner, Karl Josef Kuhn, Valerio Borzatta, Gerhard Rytz
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Patent number: 5753729Abstract: Coatings comprisingA) a binder based on an organic polymer andB) as stabilizer against damage by light, heat and oxygen, a 2-(2'-hydroxyphenyl)-1,3-pyrimidine of the formula I ##STR1## in which the radicals R.sub.1 to R.sup.6 are as defined in claim 1 have an outstanding resistance to the damaging effects of light, oxygen and heat. Compounds of the formula Ib defined in claim 18 are suitable in general for the stabilization of organic material.Type: GrantFiled: June 7, 1996Date of Patent: May 19, 1998Inventors: Andreas Valet, Jean-Luc Birbaum, Gerhard Rytz, Norbert Wurms
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Patent number: 5672704Abstract: s-Triazine UV absorbers of formula I ##STR1## where R.sub.1 is ##STR2## --CH.sub.2 --C(.dbd.CH.sub.2)--R.sub.10, --(CH.sub.2).sub.p --SiR.sub.11 R.sub.11 '--CH.dbd.CH.sub.2, --C(.dbd.O)--(CH.sub.2).sub.q --CH.dbd.CH.sub.2 or --C(.dbd.O)--O--CH.sub.2 --C(.dbd.CH.sub.2)--R.sub.10 ; and E.sub.1 and E.sub.2 are phenyl groups which may be unsubstituted or substituted with a variety of substituents including inter alia alkyl, OH and R.sub.1 ; are polymerizable and are effective stabilizers for a variety of polymeric and other organic substrates.Type: GrantFiled: September 28, 1995Date of Patent: September 30, 1997Assignee: Ciba-Geigy CorporationInventors: Vien Van Toan, David George Leppard, Gerhard Rytz, Norbert Wurms, Pascal Hayoz
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Patent number: 5668200Abstract: A mixture comprising a compound of the formula I and a compound of the formula II ##STR1## in which n is 1 or 2; R.sub.1, R'.sub.1, R.sub.2, R'.sub.2, R.sub.3 and R.sub.4, independently of one another, are H, C.sub.1 -C.sub.12 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.1 -C.sub.12 alkoxy; C.sub.2 -C.sub.18 alkenoxy; halogen; trifluoromethyl; C.sub.7 -C.sub.11 phenylalkyl; phenyl; phenyl which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen; phenoxy; or phenoxy which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen;R.sub.6 is hydrogen, C.sub.1 -C.sub.24 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.7 -C.sub.15 phenylalkyl;R.sub.7, in the case where n=1, and R'.sub.7, independently of one another, are hydrogen or C.sub.1 -C.sub.18 alkyl; or are C.sub.1 -C.sub.12 alkyl which is substituted by OH, C.sub.1 -C.sub.18 alkoxy, allyloxy, halogen, --COOH, --COOR.sub.8, --CONH.sub.2, --CONHR.sub.9, --CON(R.sub.9)(R.sub.10), --NH.sub.2, --NHR.sub.9, --N(R.sub.9)(R.Type: GrantFiled: January 16, 1996Date of Patent: September 16, 1997Assignee: Ciba-Geigy CorporationInventors: Andreas Valet, Gerhard Rytz, Pascal Hayoz
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Patent number: 5597854Abstract: The invention relates to compounds of the formula I ##STR1## in which n is 1 or 2, A is CH or a nitrogen atom, and the other radicals R.sup.1 to R.sup.25 are as defined in claim 1.The compounds of the formula I can advantageously be employed for stabilizing organic material against the harmful effect of light, oxygen and/or heat.Type: GrantFiled: November 9, 1995Date of Patent: January 28, 1997Assignee: Ciba-Geigy CorporationInventors: Jean-Luc Birbaum, Gerhard Rytz, Vien Van Toan, Andreas Valet, Norbert W urms
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Patent number: 5538840Abstract: The invention relates to a photographic recording material comprising, on a base, at least one silver-halide emulsion layer and, if desired, at least one interlayer and/or a protection layer, where at least one of said layers contains a UV absorber of the 2-hydroxyphenyltriazine type, as described in greater detail in claim 1; this UV absorber can also be in the form of a homopolymer or copolymer.Type: GrantFiled: October 2, 1995Date of Patent: July 23, 1996Assignee: Ciba-Geigy CorporationInventors: Vien Van Toan, David G. Leppard, Gerhard Rytz, Norbert Wurms, Pascal Hayoz
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Patent number: 5288777Abstract: ABS copolymers and similar styrene or .alpha.-methylstyrene copolymers which contain an elastomer phase are stabilized against light-induced degradation by a) incorporation of a copolymerizable sterically hindered amine in, and b) addition of a non-copolymerizable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.Type: GrantFiled: November 9, 1992Date of Patent: February 22, 1994Assignee: Ciba-Geigy CorporationInventors: Bernard Gilg, Gerhard Rytz, Werner Stauffer, Margot Clauss
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Patent number: 5194465Abstract: ABS copolymers and similar styrene or .alpha.-methylstyrene copolymers with contain an elastomer phase are stabilized against light-induced degradation by a) incorporation of a copolymerizable sterically hindered amine in, and b) addition of a non-copolymerizable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.Type: GrantFiled: September 30, 1991Date of Patent: March 16, 1993Assignee: Ciba-Geigy CorporationInventors: Bernard Gilg, Gerhard Rytz, Werner Stauffer, Margot Clauss
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Patent number: 5135986Abstract: Copolymers of styrene or a-methylstyrene and at least one comonomer, containing crosslinked elastomer particles, can be light-stabilized by modifying the elastomer particles by copolymerization with a suitable derivative of a sterically hindered amine. The modification is preferably carried out by graft polymerization, the elastomer used preferably being polybutadiene.Type: GrantFiled: August 1, 1991Date of Patent: August 4, 1992Assignee: Ciba-Geigy CorporationInventors: Rolf Mulhaupt, Bernard Gilg, Gerhard Rytz, Mario Slongo
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Patent number: 5059689Abstract: Compounds which contain at least one group of the formula I ##STR1## in which X is a group which completes the ring to form a piperidine ring, are effective stabilizers for organic materials against damage by light, oxygen and heat.Type: GrantFiled: January 30, 1989Date of Patent: October 22, 1991Assignee: Ciba-Geigy CorporationInventors: Jean Rody, Gerhard Rytz, Mario Slongo
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Patent number: 4942238Abstract: Compounds of formula I ##STR1## wherein R is hydrogen, methyl or cyano, and R' is hydrogen, C.sub.1 -C.sub.8 alkyl or phenyl, are suitable for copolymerization with ethylenically unsaturated monomers to form crosslinked copolymers which are stabilized against light.Type: GrantFiled: May 22, 1989Date of Patent: July 17, 1990Assignee: Ciba-Geigy CorporationInventors: Gerhard Rytz, Mario Slongo