Patents by Inventor Ueli Sulser
Ueli Sulser 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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Patent number: 10040722Abstract: A comb polymer and use thereof for improving the processing of hydraulically setting compositions. The comb polymer has ester, amide and/or ether groups on side chains bound to a main chain and the main chain has at least one acrylic acid unit A or a salt thereof and at least one methacrylic acid unit M or a salt thereof. Processes for producing a hydraulically setting composition with longer processing time.Type: GrantFiled: September 21, 2012Date of Patent: August 7, 2018Assignee: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Christina Hampel, Jörg Zimmermann
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Patent number: 9505861Abstract: Comb polymers having carboxyl/carboxylate and ester groups, containing a) 0.1-0.9 mol fractions of a partial structural unit S1, which is derived from an acrylic/methacrylic or maleic acid unit, b) 0-0.4 mol fractions of a partial structural unit S2, which is derived, for example, from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a C1 to C20-alkanol or a polyalkylene glycol, alkyl-capped on one end, preferably a polyethylene glycol, and c) 0.1-0.4 mol fractions of a partial structural unit S3, which is derived from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a polyalkylene glycol monoalkyl ether, which has a terminal, secondary hydroxyl group of the form-CH(R3)OH, wherein R3 is bulky alkyl group, preferably a methyl group.Type: GrantFiled: August 31, 2012Date of Patent: November 29, 2016Assignee: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Jörg Zimmermann, Lukas Frunz
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Patent number: 9446986Abstract: A copolymer, in particular a dispersing agent for hydraulically setting systems, includes at least three structural units S1, S2, S3 and optionally a further structural unit S4.Type: GrantFiled: November 8, 2013Date of Patent: September 20, 2016Assignees: SIKA TECHNOLOGY AG, SIKA (CHINA) LTD.Inventors: Michael Danzinger, Jennifer Liu, Ueli Sulser, Jürg Widmer
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Patent number: 9365454Abstract: A comb polymer that is a dispersant in a binder composition includes an alkaline activating agent, wherein the activating agent is intended for activation of a latently hydraulic and/or puzzolanic binder, and wherein the comb polymer has a polymer backbone formed from a plurality of backbone monomers and a plurality of polymeric side chains each formed from a plurality of side chain monomers and bonded thereto, and wherein at least some of the backbone monomers have one or more ionizable groups, and features a structure constant K of the comb polymer, defined as K=[(N?1)z]2/nP915N3/5×105, at least equal to 70, where n is the average number of side chains per comb polymer molecule, N is the average number of backbone monomers per side chain, P is the average number of side chain monomers per side chain, and z is the average number of ionizable groups per side chain-free backbone monomer.Type: GrantFiled: June 15, 2012Date of Patent: June 14, 2016Assignee: SIKA TECHNOLOGY AGInventors: Delphine Marchon, Ueli Sulser, Arnd Eberhardt, Robert Flatt
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Publication number: 20160130182Abstract: A copolymer, in particular a dispersing agent for hydraulically setting systems, includes at least three structural units S1, S2, S3 and optionally a further structural unit S4.Type: ApplicationFiled: November 8, 2013Publication date: May 12, 2016Inventors: Michael DANZINGER, Jennifer LIU, Ueli SULSER, Jürg WIDMER
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Patent number: 9187372Abstract: A polymer having the formula (XIV) as a dispersing agent for powder-form substances, typically selected from the group consisting of clays, porcelain slip, silicate flour, chalk, carbon black, rock flour, pigments, talc, plastic powders and mineral binders, and methods for improving the flow properties of powder-form substances and mixtures including powder-form substances and polymers having the formula (XIV).Type: GrantFiled: October 2, 2012Date of Patent: November 17, 2015Assignee: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Jörg Zimmermann, Lukas Frunz
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Patent number: 9115232Abstract: The invention relates to comb polymers made from maleic acid or derivatives thereof, allyl ethers, and vinyl acetate, and the preparation thereof by free-radical polymerization at a reaction temperature of 10° C. to 50° C. The invention relates further to the use of such comb polymers to improve the workability of hydraulically setting compositions.Type: GrantFiled: December 20, 2011Date of Patent: August 25, 2015Assignee: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Joerg Zimmermann
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Patent number: 9115157Abstract: The invention relates to a mono-substituted phosphinic acid and to the use thereof as a regulator in radical polymerization. Such regulators do not result in the formation of poorly soluble salts, and in addition, the polymers produced with the regulators according to the invention are characterized by a uniform polymerization degree having a narrow size distribution. In addition, the invention relates to a method for producing such mono-substituted phosphinic acids.Type: GrantFiled: July 19, 2011Date of Patent: August 25, 2015Assignee: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Jörg Zimmermann
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Patent number: 9096470Abstract: The invention relates to comb polymers of maleic acid or derivatives thereof, allyl ethers and (meth)acrylic acid or derivatives thereof, and to the preparation thereof by free radical polymerization at a reaction temperature of 10° C. to 50° C. The invention further relates to the use of such comb polymers for improving the processability of hydraulically setting compositions.Type: GrantFiled: May 7, 2012Date of Patent: August 4, 2015Assignee: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Joerg Zimmermann
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Publication number: 20140249254Abstract: A polymer having the formula (XIV) as a dispersing agent for powder-form substances, typically selected from the group consisting of clays, porcelain slip, silicate flour, chalk, carbon black, rock flour, pigments, talc, plastic powders and mineral binders, and methods for improving the flow properties of powder-form substances and mixtures including powder-form substances and polymers having the formula (XIV).Type: ApplicationFiled: October 2, 2012Publication date: September 4, 2014Inventors: Ueli Sulser, Jörg Zimmermann, Lukas Frunz
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Publication number: 20140163161Abstract: Comb polymers having carboxyl/carboxylate and ester groups, containing a) 0.1-0.9 mol fractions of a partial structural unit S1, which is derived from an acrylic/methacrylic or maleic acid unit, b) 0-0.4 mol fractions of a partial structural unit S2, which is derived, for example, from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a C1 to C20-alkanol or a polyalkylene glycol, alkyl-capped on one end, preferably a polyethylene glycol, and c) 0.1-0.4 mol fractions of a partial structural unit S3, which is derived from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a polyalkylene glycol monoalkyl ether, which has a terminal, secondary hydroxyl group of the form-CH(R3)OH, wherein R3 is bulky alkyl group, preferably a methyl group.Type: ApplicationFiled: August 31, 2012Publication date: June 12, 2014Applicant: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Jörg Zimmermann, Lukas Frunz
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Publication number: 20140080943Abstract: A comb polymer that is a dispersant in a binder composition includes an alkaline activating agent, wherein the activating agent is intended for activation of a latently hydraulic and/or puzzolanic binder, and wherein the comb polymer has a polymer backbone formed from a plurality of backbone monomers and a plurality of polymeric side chains each formed from a plurality of side chain monomers and bonded thereto, and wherein at least some of the backbone monomers have one or more ionizable groups, and features a structure constant K of the comb polymer, defined as K=[(N?1)z]2/nP915N3/5×105, at least equal to 70, where n is the average number of side chains per comb polymer molecule, N is the average number of backbone monomers per side chain, P is the average number of side chain monomers per side chain, and z is the average number of ionizable groups per side chain-free backbone monomer.Type: ApplicationFiled: June 15, 2012Publication date: March 20, 2014Applicant: SIKA TECHNOLOGY AGInventors: Delphine Marchon, Ueli Sulser, Arnd Eberhardt, Robert Flatt
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Publication number: 20140051801Abstract: The invention relates to comb polymers of maleic acid or derivatives thereof, allyl ethers and (meth)acrylic acid or derivatives thereof, and to the preparation thereof by free radical polymerization at a reaction temperature of 10° C. to 50° C. The invention further relates to the use of such comb polymers for improving the processability of hydraulically setting compositions.Type: ApplicationFiled: May 7, 2012Publication date: February 20, 2014Applicant: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Joerg Zimmermann
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Patent number: 8653161Abstract: Polymers P as dispersants, in particular as liquefiers, for hydraulically setting systems, and hydraulically setting systems including the polymer P. The polymer P includes at least one acid unit, at least one ester unit, and at least one unit containing terephthalate or naphthalate.Type: GrantFiled: October 29, 2008Date of Patent: February 18, 2014Assignee: Sika Technology AGInventors: Christina Hampel, Ulf Velten, Ueli Sulser, Jabbar Al Shemari, Norman Blank
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Patent number: 8608847Abstract: The invention relates to additives for hydraulic binders and systems produced from them, such as concrete and mortar. In particular, the present invention relates to a setting and hardening accelerator for hydraulic binders produced by means of reaction of a calcium compound CV with a silicon compound SV and addition of a phosphonic acid derivative, as well as its production.Type: GrantFiled: August 24, 2011Date of Patent: December 17, 2013Assignee: Sika Technology AGInventors: Christian Buerge, Franz Wombacher, Christophe Kurz, Beat Marazzani, Gilbert Maeder, Ueli Sulser
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Publication number: 20130253097Abstract: The invention relates to comb polymers made from maleic acid or derivatives thereof, allyl ethers, and vinyl acetate, and the preparation thereof by free-radical polymerization at a reaction temperature of 10° C. to 50° C. The invention relates further to the use of such comb polymers to improve the workability of hydraulically setting compositions.Type: ApplicationFiled: December 20, 2011Publication date: September 26, 2013Applicant: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Joerg Zimmermann
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Publication number: 20130217808Abstract: The invention relates to a method for producing comb polymers, wherein at least one polycarboxylic acid or a salt thereof is esterified with at least one monohydroxy polyether, comprising the following steps: (a) preparing a reaction mixture containing at least one polycarboxylic acid; (b) heating the reaction mixture to at least 80° C.; (c) adding a base; and (d) esterifying the mixture at a reaction temperature of at least 80° C. obtaining a comb polymer, wherein at least one monohydroxy polyether is added to the reaction mixture in step (a) and/or (b). The invention further relates to comb polymers, cement compositions, molded bodies, and uses of comb polymers.Type: ApplicationFiled: December 7, 2011Publication date: August 22, 2013Applicant: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Jorg Zimmermann, Jurg Weidmann
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Patent number: 8466244Abstract: The present invention relates to polymers P as dispersants, in particular as liquefiers, for hydraulically setting systems, and hydraulically setting systems comprising the polymer P. The polymer P comprises at least one acid unit, at least one ester unit, at least one unit containing a tetrahydrofurfuryl group, and optionally at least one amide unit.Type: GrantFiled: October 29, 2008Date of Patent: June 18, 2013Assignee: Sika Technology AGInventors: Christina Hampel, Jabbar Al Shemari, Ulf Velten, Ueli Sulser
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Publication number: 20130112116Abstract: The invention relates to additives for hydraulic binders and systems produced from them, such as concrete and mortar. In particular, the present invention relates to a setting and hardening accelerator for hydraulic binders produced by means of reaction of a calcium compound CV with a silicon compound SV and addition of a phosphonic acid derivative, as well as its production.Type: ApplicationFiled: August 24, 2011Publication date: May 9, 2013Applicant: SIKA TECHNOLOGY AGInventors: Christian Buerge, Franz Wombacher, Christophe Kurz, Beat Marazzani, Gilbert Maeder, Ueli Sulser
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Publication number: 20130109819Abstract: The invention relates to a mono-substituted phosphinic acid and to the use thereof as a regulator in radical polymerization. Such regulators do not result in the formation of poorly soluble salts, and in addition, the polymers produced with the regulators according to the invention are characterized by a uniform polymerization degree having a narrow size distribution. In addition, the invention relates to a method for producing such mono-substituted phosphinic acids.Type: ApplicationFiled: July 19, 2011Publication date: May 2, 2013Applicant: SIKA TECHNOLOGY AGInventors: Ueli Sulser, Lukas Frunz, Jörg Zimmermann