Patents by Inventor Peter E. Froehling

Peter E. Froehling 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).

  • Condensation polymer containing dialkylamide endgroups, process for producing said condensation polymers and applications thereof
    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
  • Condensation polymer containing dialkylamide endgroups, process for producing said condensation polymers and applications thereof
    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
  • Condensation polymer containing dialkylamide endgroups, process for producing said condensation polymers and applications thereof
    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
  • Condensation polymer containing dialkylamide endgroups, process for producing said condensation polymers and applications thereof
    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
  • Process for incorporating an active substance in a moulded plastic part
    Patent number: 6232378
    Abstract: The invention provides a process for incorporating an active substance in an object comprised partly or entirely of plastic which contains a dendrimer.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: May 15, 2001
    Assignee: DSM N.V.
    Inventors: Peter E. Froehling, Ellen M. M. de Brabander-van den Berg, Hubertus A. M. Mostert
  • Process for the preparation of a polymer
    Patent number: 5532328
    Abstract: The invention relates to a process for the preparation of a polymer from heterocyclic monomer units. The process according to the invention is characterized in that polymerization takes place in the presence of a sulphur-containing reagent.It has been found that the process according to the invention can be used to prepare polymers that can readily be processed, either in solution or in the melt. It has further been found that the reaction time of the reaction that takes place is short, while also the efficiency of the reaction is good. In the process according to the invention use can be made of monomer units that are thermostable. Such monomer units are easy to synthesize and easy to keep.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: July 2, 1996
    Assignee: DSM N.V.
    Inventors: Ivan A. L. Hoogmartens, Joannes M. J. V. Gelan, Dirk J. M. Vanderzande, Peter E. Froehling
  • Plastic granulated material with non-dispersed electrically conductive fibre bundles
    Patent number: 5186862
    Abstract: The invention relates to a plastic granulated material containing electrically conductive fibres, the degree of dispersion of which fibres in the granulated material is 0.10 at most, the degree of dispersion being the reciprocal value of the volume fraction in % of a granule occupied by electrically conductive fibre bundles and measured according to the threshold value method.Moulding compounds produced from the granules according to the invention have very high EMI values.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: February 16, 1993
    Assignee: Stamicarbon B.V.
    Inventors: Louis C. Krijger, Jozef M. A. Jansen, Nicolaas G. M. Hoen, Laurentius W. Steenbakkers, Peter E. Froehling