Patents by Inventor Anna Gerdine Van De Bovenkamp-Bouwman
Anna Gerdine Van De Bovenkamp-Bouwman 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: 8268189Abstract: Accelerator solution suitable for forming a redox system with peroxides and having a high storage stability, consisting essentially of (a) more than 1.0 wt % of one or more reducing agents, at least one of them being selected from ascorbic acid and sodium formaldehyde sulphoxylate, (b) one or more metal salts, at least one of them being selected from the group consisting of transition metal salts, lithium salts, and magnesium salts, (c) one or more organic oxygen-containing solvents, (d) optionally one or more stabilisers, and (e) optionally water.Type: GrantFiled: May 24, 2006Date of Patent: September 18, 2012Assignee: Akzo Nobel N.V.Inventors: Frederik Willem Karel Koers, Anna Gerdine Van De Bovenkamp-Bouwman
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Patent number: 8008380Abstract: The invention relates to an accelerator solution comprising a complexing agent selected from the group consisting of complexing agents having a nitrogen atom and a hydroxyl group and bipyridine, a salt of a metal selected from the group consisting of transition metal, magnesium, and lithium, and optionally a solvent, wherein when the complexing agent has a nitrogen atom and a hydroxyl group, the amount of complexing agent in the accelerator solution is at least 5 wt %, based on the total weight of the accelerator solution, the amount of solvent is less than 50 wt %, and the amount of diethylene glycol as solvent is less than 25 wt %, based on the total weight of the accelerator solution.Type: GrantFiled: March 31, 2008Date of Patent: August 30, 2011Assignee: AKZO Nobel N.V.Inventors: Frederik Willem Karel Koers, John Meijer, Anna Gerdine van de Bovenkamp-Bouwman
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Publication number: 20100120977Abstract: The invention relates to an accelerator solution comprising a complexing agent selected from the group consisting of complexing agents having a nitrogen atom and a hydroxyl group and bipyridine, a salt of a metal selected from the group consisting of transition metal, magnesium, and lithium, and optionally a solvent, wherein when the complexing agent has a nitrogen atom and a hydroxyl group, the amount of complexing agent in the accelerator solution is at least 5 wt %, based on the total weight of the accelerator solution, the amount of solvent is less than 50 wt %, and the amount of diethylene glycol as solvent is less than 25 wt %, based on the total weight of the accelerator solution.Type: ApplicationFiled: March 31, 2008Publication date: May 13, 2010Inventors: Frederik Willem Karel Koers, John Meijer, Anna Gerdine Van De Bovenkamp-Bouwman
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Patent number: 7078553Abstract: The invention relates to peroxides derivable from The invention further relates to the process to make these peroxides as well as to their use in polymerization, curing, and modification reactions.Type: GrantFiled: April 16, 2003Date of Patent: July 18, 2006Assignee: Akzo Nobel N.V.Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Andreas Herman Hogt, Andreas Petrus Van Swieten
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Publication number: 20040260111Abstract: The invention relates to peroxides derivable from 1Type: ApplicationFiled: April 16, 2003Publication date: December 23, 2004Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Andreas Herman Hogt, Andreas Petrus Van Swieten
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Patent number: 6770774Abstract: The invention relates to a preparation process for making peroxy esters and peroxy carbonates, peroxy ester peroxy carbonates, mixed diperoxides, mixed diperoxy esters, and mixed diperoxy carbonates, and to specific monoperoxy esters, monoperoxy carbonates, mixed peroxides, mixed diperoxy esters, mixed diperoxy carbonates, peroxy ester peroxy carbonates, and mixtures thereof. The process involves the reaction of a type-3 ketone peroxide with a reactive carbonyl compound and optional subsequent reaction with an alkyl vinyl ether, acetal, halogen formate, or carboxylic acid anhydride.Type: GrantFiled: October 23, 2002Date of Patent: August 3, 2004Assignee: Akzo Nobel N.V.Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Bart Fischer, Andreas Herman Hogt
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Publication number: 20040049070Abstract: The invention relates to a process for the preparation of a peracid, perester or diacylperoxide and is characterized in that a mixed anhydride of formula R1[C(O)OC(O)OR2]n or [R3C(O)OC(O)O]pR4 is contacted with a hydroperoxide of formula R5[OOH]m in the presence of a base, wherein R1 represents a mono-, di-, tri- or tetravalent C1-C19 hydrocarbon group, optionally containing one or more hetero atoms, n is 1-4, R2 represents a C1-C20 hydrocarbon group, optionally containing one or more hetero atoms, R3 represents a C1-C19 hydrocarbon group, optionally containing one or more hetero atoms, R4 represents a di-, tri- or tetravalent C1-C20 hydrocarbon group, optionally containing one or more hetero atoms, p is 2-4, R5 represents hydrogen or a mono- or divalent C3-C18 tertiary alkyl or C2-C20 acyl group, in which the tertiary alkyl or acyl group may optionally contain one or more hetero atoms, m is 1 or 2, and if R5 represents hydrogen, m is 1, provided that if the hydroperoxide is an &Type: ApplicationFiled: July 9, 2003Publication date: March 11, 2004Inventors: Johannes Willibrordus A. Overkamp, Marinus Catharinus Tammer, Bernard De Vries, Anna Gerdine Van de Bovenkamp-Bouwman
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Patent number: 6610880Abstract: The invention relates to a process for the preparation of a peracid, perester or diacylperoxide and is characterized in that a mixed anhydride of formula R1[C(O)OC(O)OR2]n or [R3C(O)OC(O)O]pR4 is contacted with a hydroperoxide of formula R5[OOH]m in the presence of a base, wherein R1 represents a mono-, di-, tri- or tetravalent C1-C19 hydrocarbon group, optionally containing one or more hetero atoms, n is 1-4, R2 represents a C1-C20 hydrocarbon group, optionally containing one or more hetero atoms, R3 represents a C1-C19 hydrocarbon group, optionally containing one or more hetero atoms, R4 represents a di-, tri- or tetravalent C1-C20 hydrocarbon group, optionally containing one or more hetero atoms, p is 2-4, R5 represents hydrogen or a mono- or divalent C3-C18 tertiary alkyl or C2-C20 acyl group, in which the tertiary alkyl or acyl group may optionally contain one or more hetero atoms, m is 1 or 2, and if R5 represents hydrogen, m is 1, provided that if the hydroperoxide is an &Type: GrantFiled: October 11, 2000Date of Patent: August 26, 2003Assignee: Akzo Nobel NVInventors: Johannes Willibrordus A. Overkamp, Marinus Catharinus Tammer, Bernard De Vries, Anna Gerdine Van De Bovenkamp-Bouwman
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Patent number: 6552215Abstract: The invention relates to peroxides derivable from The invention further relates to the process to make these peroxides as well as to their use in polymerization, curing, and modification reactions.Type: GrantFiled: September 5, 2000Date of Patent: April 22, 2003Assignee: Akzo Nobel N.V.Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Andreas Herman Hogt, Andreas Petrus Van Swieten
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Publication number: 20030073861Abstract: The invention relates to a preparation process for making peroxy esters and peroxy carbonates, peroxy ester peroxy carbonates, mixed diperoxides, mixed diperoxy esters, and mixed diperoxy carbonates, and to specific monoperoxy esters, monoperoxy carbonates, mixed peroxides, mixed diperoxy esters, mixed diperoxy carbonates, peroxy ester peroxy carbonates, and mixtures thereof. The process involves the reaction of a type-3 ketone peroxide with a reactive carbonyl compound and optional subsequent reaction with an alkyl vinyl ether, acetal, halogen formate, or carboxylic acid anhydride.Type: ApplicationFiled: October 23, 2002Publication date: April 17, 2003Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Bart Fischer, Andreas Herman Hogt
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Patent number: 6482970Abstract: The invention is drawn to compounds of formula (I) which is HOO—C(R1)(R2)—OO—(R1)(R2)—OO—(C═O)—(O)nR3 wherein n is 0 or 1, R1 and R2 are independently selected from the group consisting of H, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 aralkyl, C7-C20 alkaryl which may be optionally substituted or R1 and R2 can form a C3-C12 cycloalkyl group and R3 is selected from C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 aralkyl, and C7-C20 alkaryl which can be optionally substituted; a process for the preparation of the peroxy esters or peroxy carbonates of formula (I); and the method of using the compounds as polymer initiators or curing agents.Type: GrantFiled: November 28, 2000Date of Patent: November 19, 2002Assignee: Akzo Nobel NVInventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Bart Fischer, Andreas Herman Hogt
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Patent number: 6384287Abstract: The present invention relates to a new class of peroxides and to a process for the preparation of these peroxides having the general formula (I), wherein n=1 or 2, R1, R2, R4, R5, and R6 are independently selected from the group comprising hydrogen, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 aralkyl, and C7-C20 alkaryl, or R1 and R2 form a C3-C12 cycloalkyl group, which groups may include linear or branched alkyl moieties; and each of R1, R2, R4, R5, and R6 may optionally be substituted with one or more groups selected from hydroxy, alkoxy, linear or branched alkyl, aryloxy, halogen, ester, carboxy, nitrile, and amido, and R1 and R2 may form a ring, and R3 is independently selected from the group comprising C1-C20, alkyl; C3-C20 cycloalkyl, C6-C20 aryl, C7-C20, aralkyl, and C7-C20 alkaryl, which groups may include linear or branched alkyl moieties; and R3 may optionally be substituted with one or more groups selected from hydroxy, alkoxy, linear or branched alkyl, aryloxy,Type: GrantFiled: February 12, 2001Date of Patent: May 7, 2002Assignee: Akzo Nobel NVInventors: Anna Gerdine Van De Bovenkamp-Bouwman, Bernhard De Vries, John Meijer, Ejaz Ahmed Syed, Andreas Herman Hogt