Patents by Inventor Ralf Knischka
Ralf Knischka 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).
-
Publication number: 20240059838Abstract: The presently claimed invention relates to polymers obtainable by condensing at least one N-(hydroxyalkyl)amine and reacting the condensation product with glycidyl ethers as well as to a process for preparing said polymers. The presently claimed invention further relates to a use of the polymer as a wetting agent and as a component of defoamer compositions. The presently claimed invention further relates to a coating composition comprising the polymer as a wetting agent and to a defoamer composition comprising the polymer.Type: ApplicationFiled: December 16, 2021Publication date: February 22, 2024Inventors: Frank PIRRUNG, Anna Maria MUELLER-CRISTADORO, Ralf KNISCHKA, Florian Ludwig GEYER
-
Patent number: 11292906Abstract: Aqueous silicone polymer emulsion The presently claimed invention relates to a composition in form of an emulsion of water incompatible silicone oil comprising droplets of silicone oil dispersed in a continuous aqueous phase. The composition provides better slip and mar resistance, anti-blocking properties and optical properties to the coating formulations, printing ink, personal care product compositions, textiles, leather and indirect food contact applications.Type: GrantFiled: October 16, 2018Date of Patent: April 5, 2022Inventors: Andreas Gernandt, Clemens Auschra, Ralf Knischka
-
Publication number: 20220064348Abstract: The present invention relates to a polymer comprising a polyacrylate homo- or co-polymer backbone incorporating at least one benzylic derivative which is covalently bonded to at least one end of the homo- or co-polymer backbone and its use as a flow and levelling agent, additive, dispersant etc.Type: ApplicationFiled: December 18, 2019Publication date: March 3, 2022Inventors: Ulrich TRITSCHLER, Clemens AUSCHRA, Ralf KNISCHKA
-
Publication number: 20210171780Abstract: The presently claimed invention relates to a process of making silicone-in-water emulsion, compositions comprising a silicone-in-water emulsion and use of the compositions as an additive in paint and coating formulations, printing ink compositions, personal care products, textiles, leather and indirect food contact applications.Type: ApplicationFiled: July 26, 2019Publication date: June 10, 2021Inventors: Huiguang KOU, Ralf KNISCHKA, Andreas GERNANDT, Clemens AUSCHRA
-
Patent number: 10851210Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH— terminated oligo- or polyalkylene ethers in the presence of the tetra-n-C1-C6-alkoxy-titanate as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.Type: GrantFiled: November 2, 2016Date of Patent: December 1, 2020Assignee: BASF SEInventors: Lothar Engelbrecht, Wolfgang Peter, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
-
Publication number: 20200317906Abstract: Aqueous silicone polymer emulsion The presently claimed invention relates to a composition in form of an emulsion of water incompatible silicone oil comprising droplets of silicone oil dispersed in a continuous aqueous phase. The composition provides better slip and mar resistance, anti-blocking properties and optical properties to the coating formulations, printing ink, personal care product compositions, textiles, leather and indirect food contact applications.Type: ApplicationFiled: October 16, 2018Publication date: October 8, 2020Applicant: BASF SEInventors: Andreas GERNANDT, Clemens AUSCHRA, Ralf KNISCHKA
-
Patent number: 10752736Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.Type: GrantFiled: November 2, 2016Date of Patent: August 25, 2020Assignee: BASF SEInventors: Lothar Engelbrecht, Wolfgang Peter, Andreas Gernandt, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
-
Patent number: 10584263Abstract: The present invention relates to aqueous polymer-silicon oil hybrid compositions in the form of aqueous dispersions of finely divided polymer-silicon oil hybrid particles which comprise at least one water-insoluble polymer P made of ethylenically unsaturated monomers M, at least one surface-active substance and at least non-polymerizable, non-polar silicon oil. The present invention relates in particular to the use of these compositions as additives in aqueous coating and printing ink compositions.Type: GrantFiled: September 22, 2015Date of Patent: March 10, 2020Assignee: BASF SEInventors: Frank Pirrung, Lothar Engelbrecht, Clemens Auschra, Jens-Uwe Voigt, Ralf Knischka
-
Patent number: 10301434Abstract: The present invention relates to novel block copolymers of general formula (I). The invention further relates to a method for producing such block copolymers and to the use of such block copolymers, particularly as additives in liquid coating-agent compositions. A{X—[O—C(O)NH—Y—NH—C(O)—O-M-B]k}n (I).Type: GrantFiled: January 17, 2014Date of Patent: May 28, 2019Assignee: BASF SEInventors: Lothar Engelbrecht, Frank Pirrung, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
-
Publication number: 20180305548Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH— terminated oligo- or polyalkylene ethers in the presence of the tetra-n-C1-C6-alkoxy- titanate as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.Type: ApplicationFiled: November 2, 2016Publication date: October 25, 2018Applicant: BASF SEInventors: Lothar ENGELBRECHT, Wolfgang PETER, Clemens AUSCHRA, Ralf KNISCHKA, Reiner KRANWETVOGEL
-
Publication number: 20180298149Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.Type: ApplicationFiled: November 2, 2016Publication date: October 18, 2018Applicant: BASF SEInventors: Lothar ENGELBRECHT, Wolfgang PETER, Andreas GERNANDT, Clemens AUSCHRA, Ralf KNISCHKA, Reiner KRANWETVOGEL
-
Patent number: 9944786Abstract: The present invention relates to a composition, comprising a binder resin, a block copolymer which comprises at least a block A and a block B, wherein the block A comprises monomer units derived from a compound selected from (meth)acrylic acid, a (meth)acrylic acid ester, a (meth)acrylamide, a vinyl aromatic compound, or any mixture thereof, the block B comprises monomer units derived from a compound selected from a fluorinated (meth)acrylic ester having the following formula (I): H2C?C(R1)(C(O)ORF-1)??(I) wherein R1 is H or methyl; and RF-1 is an organic residue containing a perfluorinated C4-6 alkyl group, a fluorinated alpha-olefin having the following formula (II): H2C?CH(RF-2)??(II) wherein RF-2 is an organic residue containing a perfluorinated C4-6 alkyl group, i.e., —(CF2)3-5—CF3 or any mixture thereof.Type: GrantFiled: July 14, 2016Date of Patent: April 17, 2018Assignee: BASF SEInventors: Mary Thomson, Ralf Knischka, Clemens Auschra, Lothar Engelbrecht
-
Publication number: 20170247570Abstract: The present invention relates to aqueous polymer-silicon oil hybrid compositions in the form of aqueous dispersions of finely divided polymer-silicon oil hybrid particles which comprise at least one water-insoluble polymer P made of ethylenically unsaturated monomers M, at least one surface-active substance and at least non-polymerizable, non-polar silicon oil. The present invention relates in particular to the use of these compositions as additives in aqueous coating and printing ink compositions.Type: ApplicationFiled: September 22, 2015Publication date: August 31, 2017Applicant: BASF SEInventors: Frank PIRRUNG, Lothar ENGELBRECHT, Clemens AUSCHRA, Jens-Uwe VOIGT, Ralf KNISCHKA
-
Patent number: 9587105Abstract: The present invention relates to a composition, comprising a binder resin, a block copolymer which comprises at least a block A and a block B, wherein the block A comprises monomer units derived from a compound selected from (meth)acrylic acid, a (meth)acrylic acid ester, a (meth)acrylamide, a vinyl aromatic compound, or any mixture thereof, the block B comprises monomer units derived from a compound selected from a fluorinated (meth)acrylic ester having the following formula (I): H2C?C(R1)(C(0)ORF-1), wherein R1 is H or methyl; and RF-1 is an organic residue containing a perfluorinated C4-6 alkyl group, a fluorinated alpha-olefin having the following formula (II): H2C?CH(RF-2) (II) wherein RF-2 is an organic residue containing a perfluorinated C4-6 alkyl group, i.e. —(CF2)3-5—CF3 or any mixture thereof.Type: GrantFiled: February 22, 2013Date of Patent: March 7, 2017Assignee: BASF SEInventors: Mary Thomson, Ralf Knischka, Clemens Auschra, Lothar Engelbrecht
-
Publication number: 20170009096Abstract: The present invention relates to a composition, comprising a binder resin, a block copolymer which comprises at least a block A and a block B, wherein the block A comprises monomer units derived from a compound selected from (meth)acrylic acid, a (meth)acrylic acid ester, a (meth)acrylamide, a vinyl aromatic compound, or any mixture thereof, the block B comprises monomer units derived from a compound selected from a fluorinated (meth)acrylic ester having the following formula (I): H2C?C(R1)(C(O)ORF?1)??(I) wherein R1 is H or methyl; and RF?1 is an organic residue containing a perfluorinated C4-6 alkyl group, a fluorinated alpha-olefin having the following formula (II): H2C?CH(RF?2)??(II) wherein RF?2 is an organic residue containing a perfluorinated C4-6 alkyl group, i.e., —(CF2)3-5—CF3 or any mixture thereof.Type: ApplicationFiled: July 14, 2016Publication date: January 12, 2017Applicant: BASF SEInventors: Mary THOMSON, Ralf KNISCHKA, Clemens AUSCHRA, Lothar ENGELBRECHT
-
Publication number: 20150337086Abstract: The present invention relates to novel block copolymers of general formula (I). The invention further relates to a method for producing such block copolymers and to the use of such block copolymers, particularly as additives in liquid coating-agent compositions. A{X—[O—C(O)NH—Y—NH—C(O)—O-M-B]k}n (I).Type: ApplicationFiled: January 17, 2014Publication date: November 26, 2015Applicant: BASF SEInventors: Lothar ENGELBRECHT, Frank PIRRUNG, Clemens AUSCHRA, Ralf KNISCHKA, Reiner KRANWETVOGEL
-
Patent number: 8969577Abstract: The present invention relates to curable compositions comprising a thermolatent amidine base and an organic material which is polymerizable or crosslinkable with a basic or nucleophilic catalyst. In particular, the invention relates to curable coating compositions, especially powder coating compositions, and curable adhesive compositions, as well as to the use a thermolatent amidine base as a curing catalyst for thermally induced base-catalyzed polymerization or crosslinking reactions.Type: GrantFiled: November 18, 2009Date of Patent: March 3, 2015Assignee: BASF SEInventors: Peter Nesvadba, Lucienne Bugnon Folger, Ralf Knischka
-
Publication number: 20150018476Abstract: The present invention relates to a composition, comprising a binder resin, a block copolymer which comprises at least a block A and a block B, wherein the block A comprises monomer units derived from a compound selected from (meth)acrylic acid, a (meth)acrylic acid ester, a (meth)acrylamide, a vinyl aromatic compound, or any mixture thereof, the block B comprises monomer units derived from a compound selected from a fluorinated (meth)acrylic ester having the following formula (I): H2C?C(R1)(C(0)ORF-1), wherein R1 is H or methyl; and RF-1 is an organic residue containing a perfluorinated C4-6alkyl group, a fluorinated alpha-olefin having the following formula (II): H2C?CH(RF-2) (II) wherein RF-2 is an organic residue containing a perfluorinated C4-6 alkyl group, i.e. —(CF2)3-5—CF3 or any mixture thereof.Type: ApplicationFiled: February 22, 2013Publication date: January 15, 2015Applicant: BASF SEInventors: Mary Thomson, Ralf Knischka, Clemens Auschra, Lothar Engelbrecht
-
Patent number: 8853314Abstract: The invention relates to a powder composition comprising particles of a) an alkali metal tungsten bronze, b) tungsten oxide, and c) tungsten metal, a method for the preparation of said powder composition, and to the use of said powder composition in form of a dispersion in a polymer material or article for heat shielding, or to increase the heat-input amount of near infrared radiation in processes selected from laser welding of plastics, NIR curing of coatings, drying of printing inks, fixing of ink toners to a substrate, heating of plastic performs, laser marking of plastics or paper.Type: GrantFiled: October 14, 2009Date of Patent: October 7, 2014Assignee: Datalase Ltd.Inventors: Marc Mamak, Urs Lehmann, Ralf Knischka, Francesca Peri, Adolf Käser
-
Patent number: 8669336Abstract: The invention relates to a coating composition comprising short chain fluorinated acrylates and to the use of short chain fluorinated acrylates as levelling agents for pigmented and unpigmented coating compositions. The coating composition comprises a) a film forming binder resin, and b) a copolymer made by controlled polymerization or by conventional radical polymerization comprising a monomer (M1x) selected from unsaturated monomers out of the group of (meth)acrylates, styrenic monomers or (meth)acrylamides whereby the copolymer contains at least >30 wt % (meth)acrylates; and a monomer (M2y) selected from C1-C4-fluoralkyl(meth)acrylates; x denotes the total number of monomers M1 within the structural element (M1x): x>5, preferred, 10-1000, most preferred, 10-500; y denotes the total number of monomers M2 within the structural element (M2y): y>1, preferred, 2-20, most preferred 2-10; c) optional other conventional coating components and/or additives.Type: GrantFiled: February 3, 2009Date of Patent: March 11, 2014Assignee: BASF SEInventors: Andreas Möck, Ralf Knischka, Clemens Auschra