Patents by Inventor Josef Huybrechts
Josef Huybrechts 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: 7662875Abstract: The invention is directed to aqueous coating compositions with improved rheology performance, comprising A) at least one water-dilutable binder, optionally, at least one cross-linking agent B), at least one sagging control agent C) obtainable by reacting a polyisocyanate with an amine, water and optionally usual coating additives, pigments and/or organic solvents, wherein the sagging control agent is obtained by reacting in an aqueous phase in presence of a water-dilutable binder C1) at least one polyisocyanate with C2) at least one amine having at least one primary amino group and at least one hydroxyl group.Type: GrantFiled: May 18, 2006Date of Patent: February 16, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Josef Huybrechts, Koen Linsen, Paul Bruylants
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Patent number: 7439354Abstract: A process for preparing amide acetals represented in Formula I comprising dehydrating a reactant mixture comprising reactants selected from a group consisting of N-acyl dialkanol amines, O-acyl dialkanol amines and mixtures thereof wherein n and m are independently 2 or 3; p is 1, 2 or 3; R1 and R2 can be the same or different and are each independently hydrogen, a linear or branched alkyl, cycloalkyl or aryl group with 1-20 C atoms; R represents hydrogen, a branched or linear alkyl, cycloalkyl, aryl or an alkenyl group with 1-20 C-atoms, each may have one or more substituents.Type: GrantFiled: December 2, 2004Date of Patent: October 21, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Christian Peter Lenges, Josef Huybrechts, Douglas J. Adelman
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Publication number: 20070142507Abstract: A solvent-based coating composition, used in automotive original and automotive refinish coating, comprising 10-90% by weight of at least one hydroxyl-functional (meth)acrylic copolymer A) having an OH value from 80 to 200 KOH/g and a weight average molecular weight Mw from 2,500 to 30,000 and 90-10 weight.-% of at least one cross-linking agent B), which is capable of entering into a cross-linking reaction with the OH-groups of components A), wherein the % by weight of component A) and B) add up to 100 weight.Type: ApplicationFiled: December 20, 2005Publication date: June 21, 2007Inventors: Josef Huybrechts, Carmen Flosbach, Ann Vaes, Eline de Rouck
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Publication number: 20060292306Abstract: The invention is directed to a process for multilayer coating of substrates comprising the following steps: 1. applying a base coat layer of a water-based colour- and/or special effect-imparting base coat composition onto an optionally precoated vehicle substrate, 2. optionally drying or curing the base coat layer obtained in step 1, 3. applying a clear coat layer of a transparent clear coat onto the base coat layer and 4.Type: ApplicationFiled: June 20, 2005Publication date: December 28, 2006Inventors: Armin Goebel, Josef Huybrechts, Paul Bruylants, Stefan Wiggershaus
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Publication number: 20060270782Abstract: The invention is directed to aqueous coating compositions with improved rheology performance, comprising A) at least one water-dilutable binder, optionally, at least one cross-linking agent B), at least one sagging control agent C) obtainable by reacting a polyisocyanate with an amine, water and optionally usual coating additives, pigments and/or organic solvents, wherein the sagging control agent is obtained by reacting in an aqueous phase in presence of a water-dilutable binder C1) at least one polyisocyanate with C2) at least one amine having at least one primary amino group and at least one hydroxyl group.Type: ApplicationFiled: May 18, 2006Publication date: November 30, 2006Inventors: Josef Huybrechts, Koen Linsen, Paul Bruylants
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Publication number: 20060216525Abstract: The invention is directed to an aqueous coating composition, comprising A) at least one water-dilutable binder with functional groups containing active hydrogen, B) at least one polyisocyanate cross-linking agent with free isocyanate groups, C) at least one amino functional, having at least one group selected from a group consisting of primary amino group, secondary amino group and mixtures thereof, and having at least one group selected from a group consisting of sulfonic acid group, phosphonic acid group and mixtures thereof, and D) water and optionally, E) usual coating additives, pigments and organic solvents.Type: ApplicationFiled: March 24, 2005Publication date: September 28, 2006Inventors: Josef Huybrechts, Koen Linsen, Ann Vaes
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Publication number: 20060128876Abstract: The invention is directed to an aqueous coating composition, comprising A) at least one water-dilutable binder with functional groups containing active hydrogen, B) at least one polyisocyanate cross-linking agent with free isocyanate groups, C) at least one amino functional and acid functional compound having at least one carboxyl group and at least one group selected from a group consisting of primary amino group, secondary amino group and mixtures thereof, and having preferably a molecular weight of 75 to 1000 g/mole, D) water and optionally, E) usual coating additives, pigments and organic solvents.Type: ApplicationFiled: December 10, 2004Publication date: June 15, 2006Inventors: Josef Huybrechts, Koen Linsen, Ann Vaes
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Publication number: 20060047065Abstract: The invention is directed to aqueous coating composition comprising A) at least one water-dilutable (meth)acrylate copolymer and B) at least one polyisocyanate cross-linking agent with free isocyanate groups, wherein the (meth)acrylate copolymer comprise a) 10-80% by weight of at least one reaction product of a monoepoxyester and an unsaturated acid functional monomer b) 0-40% by weight of at least one hydroxy functional unsaturated monomer which is different from component a), c) 1-8% by weight of at least one unsaturated acid functional monomer and d) 0-70% by weight of at least one other polymerisable unsaturated monomer, wherein the % by weight of components A) and B) and of components a) to d) is adding up to 100% by weight and wherein the (meth)acrylate copolymer is prepared by a skew feed polymerization process with at least two feed streams and wherein one feed stream comprises the main quantity, namely 60-100% by weight of component a), based on the total amount of component a) and the lower amount,Type: ApplicationFiled: August 2, 2005Publication date: March 2, 2006Inventors: Wiebke Becker, Volker Duecoffre, George Hendrickx, Josef Huybrechts, Birgit Kleuser, Johan Rommens, Ann Vaes
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Publication number: 20050131164Abstract: A process for preparing amide acetals represented in Formula I comprising dehydrating a reactant mixture comprising reactants selected from a group consisting of N-acyl dialkanol amines, O-acyl dialkanol amines and mixtures thereof wherein n and m are independently 2 or 3; p is 1, 2 or 3; R1 and R2 can be the same or different and are each independently hydrogen, a linear or branched alkyl, cycloalkyl or aryl group with 1-20 C atoms; R represents hydrogen, a branched or linear alkyl, cycloalkyl, aryl or an alkenyl group with 1-20 C-atoms, each may have one or more substituents.Type: ApplicationFiled: December 2, 2004Publication date: June 16, 2005Inventors: Christian Lenges, Josef Huybrechts, Douglas Adelman
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Patent number: 6652971Abstract: The invention relates to hydroxy-functional (meth)acrylic copolymers having an OH value from 40 to 260 mg KOH/g, a number average molecular mass (Mn) from 1500 to 20000 g/mole and a glass transition temperature Tg from −40° C. to 80° C., containing A) polymerized monomers of at least one epoxy-functional, olefinically unsaturated monomer, B) at least one compound having a carboxyl group and at least one hydroxyl group in the molecule that is reacted with the epoxy functional group of the polymerized olefincially unsaturated monomers, C) at least one additional polymerized olefinically unsaturated monomer capable of radical polymerization which is different from component A) and D) optionally at least one lactone reacted with the polymer. It also relates to processes for making the copolymers and to coating compositions that contain the hydroxy-functional (meth)acrylic copolymers and to the use thereof in multi-layer automotive coatings.Type: GrantFiled: October 30, 2000Date of Patent: November 25, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Ann Delmotte, Josef Huybrechts, Hermann Kerber, Olaf Ley, Harold Paulussen, Ann Vaes
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Patent number: 6646070Abstract: This invention provides for an aqueous metallic flake containing coating composition having improved glamour. The coating composition includes a neutralized phosphated segmented copolymer dispersed in an aqueous carrier. The phosphorous moiety in the segmented copolymer passivates the metallic flakes, such as aluminum flakes, used to produce the glamour. As a result, generation of hydrogen gas is substantially reduced. The segmented copolymer is provided with hydrophobic and nonionic hydrophilic segments. Applicants have discovered that by including a nonionic hydrophilic segment in the segmented copolymer, glamour of the resultant coating composition can be improved.Type: GrantFiled: April 9, 2001Date of Patent: November 11, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles T. Berge, Michael Fryd, Josef Huybrechts, Kenneth S. Kirshenbaum, Karyn B. Visscher
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Patent number: 6646153Abstract: Hydroxy functional urethane compounds comprising the reaction product of a hydroxy functional urethane intermediate with a compound having at least 2 isocyanate groups, wherein the intermediate is represented by the formula: wherein R1 and R2=hydrogen, alkyl, cycloalkyl or a residue R6—O— or R6—CO—O— with R6; R6=an alkyl, cycloalkyl or benzylic group having up to 18 carbon atoms; R4 and R5=hydrogen or alkyl group containing eventually a hydroxyl group; and R3=alkyl, cycloalkyl or benzylic group eventually containing an ether linkage and/or a hydroxyl group, or HO—CH(R1)—CH(R2)—; and is prepared by reaction of a cyclic 5-ring carbonate with a beta-hydroxy functional, secondary amine. The hydroxy functional urethanes are useful in paints and coatings, particularly for automotive applications.Type: GrantFiled: July 19, 2000Date of Patent: November 11, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Josef Huybrechts
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Patent number: 6624227Abstract: The invention provides an aqueous coating composition comprising nonionically and/or anionically stabilized film-forming polymers and metallic pigments and a compound which is the reaction product of a phosphonic acid derivative, a hydroxy-functional addition polymers and, optionally a compound having a hydroxy group, in which the phosphonic acid derivative is selected from one or both of wherein R and R′ are selected from the group consisting of an aliphatic and an aromatic substituent having 1 to 25 carbon atoms optionally including heteroatoms of at least one of oxygen, phosphorus and silicon.Type: GrantFiled: July 12, 2000Date of Patent: September 23, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Paul Peter Bruylants, Josef Huybrechts, Kenneth S. Kirshenbaum, Charles T. Berge
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Patent number: 6558796Abstract: The invention is directed to gassing stabilized aqueous coating compositions comprising A) a metallic pigment and at least one reaction product of: (a) 5 to 95 weight percent of a at least one phosphonic acid derivative selected form compound I and II wherein R1 is H or O═P(OH)2; R2 and R3 are independently H, OH or an aliphatic, cycloaliphatic and aromatic substituent having 1 to 25 carbon atoms and optionally up to 10 heteroatoms of at least one of oxygen and phosphorus; and R′ is an aliphatic, cycloaliphatic and aromatic substituent having 1 to 25 carbon atoms and optionally up to 10 heteroatoms of at least one of oxygen and phosphorus; (b) 5 to 95 weight percent of a at least one compound having at least two epoxy groups and a number average molecular weight Mn of 300 to 5000 g/mol; and (c) 0 to 90 weight percent of a compound having one epoxy-functional group, wherein the proportions by weight of components (a), (b) and (c) total 100 weight percent.Type: GrantFiled: December 6, 2000Date of Patent: May 6, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Josef Huybrechts, Paul Bruylants, Michael Koerner, Kenneth S. Kirshenbaum
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Patent number: 6503975Abstract: Emulsions are disclosed which contain (a) an aqueous carrier and (b) a polymer mixture of (1) 40-99.5% by weight of a copolymer with a weight average molecular weight of at least 3000; and (2) 0.5-60% by weight of a stabilizing copolymer dispersed in water, wherein the stabilizing copolymer comprises a structured polymer having a hydrophobic portion and a hydrophilic portion, wherein said structured polymer is selected from the group consisting of (i) polymers comprising 5-95% by weight of a hydrophilic macromonomer having at least 10% of an acid functional monomer and 5-95% by weight of at least one hydrophobic monomer polymerized in the presence of the macromonomer; and (ii) polymers comprising 5-95% by weight of a hydrophobic macromonomer and 5-95% by weight of hydrophilic copolymer comprising at least 10% of an acid functional monomer polymerized in the presence of the macromonomer.Type: GrantFiled: March 29, 2000Date of Patent: January 7, 2003Assignee: E. I du Pont de Nemours and CompanyInventor: Josef Huybrechts
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Publication number: 20020198304Abstract: This invention provides for an aqueous metallic flake containing coating composition having improved glamour. The coating composition includes a neutralized phosphated segmented copolymer dispersed in an aqueous carrier. The phosphorous moiety in the segmented copolymer passivates the metallic flakes, such as aluminum flakes, used to produce the glamour. As a result, generation of hydrogen gas is substantially reduced. The segmented copolymer is provided with hydrophobic and nonionic hydrophilic segments. Applicants have discovered that by including a nonionic hydrophilic segment in the segmented copolymer, glamour of the resultant coating composition can be improved.Type: ApplicationFiled: April 9, 2001Publication date: December 26, 2002Inventors: Charles T. Berge, Michael Fryd, Josef Huybrechts, Kenneth Sheldon Kirshenbaum, Karyn B. Visscher
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Patent number: 6432484Abstract: The invention is directed to a two-pack high solids low VOC ambient curable coating composition, which includes cross linking and binder components. The crosslinking component includes a polyamine, a polyketimine, or a combination thereof. The polyamine is provided on an average with at least two amine functionalities per polymer chain and the polyketimine is provided on an average with at least two ketimine functionalities per polymer chain. A reactive diluent in the binder component includes a macromolecule substantially free from acrylate functionalities and having at least two acetoacetate functionalities per the macromolecule. If desired, the coating composition includes a binder polymer. The coating composition of the invention is particularly suited in automotive refinish coatings.Type: GrantFiled: January 16, 2001Date of Patent: August 13, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Patrick Henry Corcoran, Carl Brent Douglas, Eric Diaz Felton, Josef Huybrechts, Gary Delmar Jaycox, Patricia Mary Ellen Sormani, Marko Strukelj, Lech Wilczek
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Publication number: 20020102407Abstract: The invention is directed to gassing stabilized aqueous coating compositions comprisingType: ApplicationFiled: December 6, 2000Publication date: August 1, 2002Inventors: Josef Huybrechts, Paul Bruylants, Michael Koerner, Kenneth S. Kirshenbaum
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Publication number: 20020102425Abstract: The invention relates to solvent-based coating compositions, comprising at least one hydroxy-functional (meth)acrylic copolymer I having an OH-value from 40 to 260 mg KOH/g, and a number average molecular mass (Mn) from 1,300 to 20,000 g/mol, which comprise the following polymerized components:Type: ApplicationFiled: December 4, 2000Publication date: August 1, 2002Inventors: Ann Delmotte, Josef Huybrechts, Ann Vaes, Harald Paulussen
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Patent number: 6365673Abstract: This invention concerns low viscosity aldimine and ketimine reactive diluents having multi-imine functionality, which are useful in automotive refinish coating compositions, including a process for making them and the coatings that contain them.Type: GrantFiled: June 18, 1999Date of Patent: April 2, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Patrick Henry Corcoran, Carl Brent Douglas, Eric Diaz Felton, Robert Allen Halling, Josef Huybrechts, Gary Delmar Jaycox, Marko Strukelj