Patents by Inventor Rudolfus A. T. M. Van Benthem

Rudolfus A. T. M. Van Benthem 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).

  • Patent number: 7678876
    Abstract: Hydroxy-aromatic compounds of formula (I) are provided: wherein at least one of the set consisting of R1, R3, and R5 is a group of formula (II); any remaining one or two of the set consisting of R1, R3, and R5 being H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; R2 and R4 are H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; wherein formula (II) is the following group: wherein EWG is an electron-withdrawing group.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 16, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Rudolfus A T M Van Benthem, Renier H M Kierkels
  • Publication number: 20080194790
    Abstract: The invention relates to a hydroxy-aromatic compound of formula (I): wherein: at least one of the set consisting of R1, R3, and R5 is a group of formula (II); any remaining one or two of the set consisting of R1, R3, and R5 being H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; R2 and R4 are H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; formula (II) is the following group: wherein EWG is an electron-withdrawing group.
    Type: Application
    Filed: December 1, 2005
    Publication date: August 14, 2008
    Inventors: Rudolfus A.T.M. Van Benthem, Renier H.M. Kierkels
  • Patent number: 6740415
    Abstract: The invention relates to a radiation curable powder paint binder composition comprising a radiation curable compound being a mono or multi valent carboxylic ester of a &bgr;, &ggr;, &dgr;, or &egr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;, &bgr;-ethylenically unsaturated carboxylic acid.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: May 25, 2004
    Assignee: DSM N.V.
    Inventors: Rudolfus A. T. M. Van Benthem, Saskia Udding-Louwrier, Johan F. G. A. Jansen, Aylvin J. A. A. Dias
  • Patent number: 6730771
    Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibers.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 4, 2004
    Assignee: DSM N.V.
    Inventors: Rudolfus A. T. M. Van Benthem, Peter E. Froehling
  • Publication number: 20030232997
    Abstract: A powder paint binder composition is useful for the preparation of a powder paint composition which includes, as crosslinking agent, an aromatic bisoxazoline obtained by reacting an aromatic carboxylic acid or an ester thereof with an alkanolamine to obtain an hydroxylamide. The hydroxyalkylamide is converted into an aromatic bisoxazoline in the presence of a catalyst. The catalyst includes phosphinic acid, (C1-C26) alkyl phosphinic acid, (C6-C20) aryl phosphinic acid or an ester or an anhydride derived from one of these acids. Powder paint compositions including the powder paint binder composition form coatings by curing the powder paint. The aromatic bisoxazlines are also useful as chain-extending agents for polymers such as polyamides and polyesters.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 18, 2003
    Inventors: Rudolfus A.T.M. Van Benthem, Jacobus A. Loontjens, Patrick H.M. Hendriks, Bartholomeus J.M. Plum
  • Patent number: 6660869
    Abstract: The invention relates to a process for the preparation of an aromatic bisoxazoline in which, in a first step, an aromatic carboxylic acid or an ester hereof reacts with an alkanolamine, after which the hydroxyalkylamide obtained is in a second step converted into an aromatic bisoxazoline in the presence of a catalyst. The catalyst is phosphinic acid, a (C1-C26) alkyl phosphinic acid, a (C6-C20)aryl phosphinic acid or an ester or an anhydride derived from one of these acids.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: December 9, 2003
    Assignee: DSM N.V.
    Inventors: Rudolfus A. T. M. Van Benthem, Jacobus A. Loontjens, Patrick H. M. Hendriks, Bartholomeus J. M. Plum
  • Patent number: 6645636
    Abstract: A condensation polymer, obtained through reaction of an alkanolamide and a cyclic anhydride to form a hydroxyalkylamide, followed by polycondensation of the hydroxyalkylamide, has at least two carboxylic acid end groups connected to an alkylamide groups via an ester linkage. The polymers may be used in powder paint compositions.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: November 11, 2003
    Assignee: DSM N.V.
    Inventor: Rudolfus A. T. M. Van Benthem
  • Publication number: 20030149224
    Abstract: The invention is related to a thermosetting composition containing a functional resin with —OH or —NH2 groups, a functionality of more than 2, and a crosslinking agent, wherein the crosslinking agent is a carbonylbislactamate. The composition preferably contains also an acid or a base as a catalyst. The invention further relates to the use of a carbonylbislactamate for curing of a functional resin with —OH or —NH2 groups and a functionality of more than 2.
    Type: Application
    Filed: December 13, 2002
    Publication date: August 7, 2003
    Inventors: Jacobus A Loontjens, Rudolfus A T M Van Benthem, Bartholomeus J M Plum, Johan Rietberg
  • Patent number: 6541110
    Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibres.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: April 1, 2003
    Assignee: DSM N.V.
    Inventors: Rudolfus A. T. M. Van Benthem, Peter E. Froehling
  • Publication number: 20020137880
    Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibres.
    Type: Application
    Filed: May 21, 2002
    Publication date: September 26, 2002
    Inventors: Rudolfus A.T.M. Van Benthem, Peter E. Froehling
  • Publication number: 20020091203
    Abstract: The invention relates to a process for the preparation of an aromatic bisoxazoline in which, in a first step, an aromatic carboxylic acid or an ester hereof reacts with an alkanolamine, after which the hydroxyalkylamide obtained is in a second step converted into an aromatic bisoxazoline in the presence of a catalyst. The catalyst is phosphinic acid, a (C1-C26) alkyl phosphinic acid, a (C6-C20) aryl phosphinic acid or an ester or an anhydride derived from one of these acids.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 11, 2002
    Inventors: Rudolfus A.T.M. Van Benthem, Jacobus A. Loontjens, Patrick H.M. Hendriks, Bartholomeus J.M. Plum
  • Patent number: 6392006
    Abstract: The invention relates to a linear or branched polymer containing ester groups and at least one amidegroup in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of ≧800 g/mol. The invention also relates to an entirely or partly modified polymer. The polymer according to the invention can for example be obtained by reaction of a cyclic anhydride and an alkanolamine to form a &bgr;-hydroxyalkylamide, after which a polyesteramide is obtained through polycondensation. The polymers according to the invention can, for example, be used in thermosetting powder-paint compositions.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: May 21, 2002
    Assignee: DSM N.V.
    Inventors: Rudolfus A. T. M. Van Benthem, Johan Rietberg, Dirk A. W. Stanssens
  • Patent number: 6387496
    Abstract: The invention relates to a linear or branched polymer containing ester groups and at least one amide group in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of ≧800 g/mol. The invention also relates to an entirely or partly modified polymer. The polymer according to the invention can for example be obtained by reaction of a cyclic anhydride and an alkanolamine to form a &bgr;-hydroxyalkylamide, after which a polyesteramide is obtained through polycondensation. The polymers according to the invention can, for example, be used in thermosetting powder-paint compositions.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 14, 2002
    Assignee: DSM N.V.
    Inventors: Rudolfus A. T. M. Van Benthem, Johan Rietberg, Dirk A. W. Stanssens
  • Publication number: 20020055609
    Abstract: The invention relates to a linear or branched polymer containing ester groups and at least one amidegroup in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of ≧800 g/mol. The invention also relates to an entirely or partly modified polymer.
    Type: Application
    Filed: August 30, 2001
    Publication date: May 9, 2002
    Applicant: DSM N.V.
    Inventors: Rudolfus A.T.M. Van Benthem, Johan Rietberg, Dirk A.W. Stanssens
  • Publication number: 20020035236
    Abstract: The invention relates to a condensation polymer having at least one carboxylic acid end group connected to an alkylamide group via an ester linkage.
    Type: Application
    Filed: September 24, 2001
    Publication date: March 21, 2002
    Applicant: DSM N.V. Het Overloon 1,6411 TE Heerlen, the Netherlands
    Inventor: Rudolfus A.T.M Van Benthem
  • Publication number: 20020019509
    Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibers.
    Type: Application
    Filed: September 25, 2001
    Publication date: February 14, 2002
    Applicant: DSM N.V.
    Inventors: Rudolfus A.T.M. Van Benthem, Peter E. Froehling
  • Publication number: 20020019467
    Abstract: The invention relates to a powder paint binder composition which contains a compound comprising carboxylic acid units, a compound comprising hydroxyalkyl amide units and as catalyst phosphinic acid, a (C1-C26) alkylphosphinic acid, a (C6-C20) arylphosphinic acid or an ester or an anhydride derived from one of these acids. Highly suitable as catalyst for this reaction are phosphinic acid, phenylphosphinic acid and diylphosphine ester acid.
    Type: Application
    Filed: August 23, 2001
    Publication date: February 14, 2002
    Applicant: DSM N.V.
    Inventors: Rudolfus A.T.M. Van Benthem, Patrick H.M. Hendricks, Johan Rietberg
  • Publication number: 20010007010
    Abstract: The invention relates to a radiation curable powder paint binder composition comprising a radiation curable compound being a mono or multi valent carboxylic ester of a &bgr;, &ggr;, &dgr;, or &egr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;, &bgr;-ethylenically unsaturated carboxylic acid.
    Type: Application
    Filed: January 5, 2001
    Publication date: July 5, 2001
    Inventors: Rudolfus A.T.M. Van Benthem, Saskia Udding-Louwrier, Johan F.G.A. Jansen, Aylvin J.A.A. Dias
  • Publication number: 20010006730
    Abstract: The invention relates to a polymer having at least one group derived from a carboxylic ester of a hydroxyalkylamide and an &agr;,&bgr;-ethylenically unsaturated carboxylic acid and a radiation curable composition comprising this polymer.
    Type: Application
    Filed: January 8, 2001
    Publication date: July 5, 2001
    Inventors: Rudolfus A.T.M. Van Benthem, John F.G.A. Jansen, Aylvin J.A.A. Dias
  • Patent number: 6245829
    Abstract: The invention relates to a radiation curable composition comprising a mono or mulit valent carboxylic ester of a &bgr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;,&bgr;-ethylenically unsaturated carboxylic acid. A coating composition based on this composition has a high rate of polymerisation and shows the desired chemical and mechanical properties.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: June 12, 2001
    Assignee: DSM NV
    Inventors: Theodoor H. Meij, Marten Houweling, Aylvin J. A. A. Dias, Johan F. G. A. Jansen, Rudolfus A. T. M. Van Benthem