Patents by Inventor Bartholomeus J. M. Plum
Bartholomeus J. M. Plum 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: 6750316Abstract: The invention relates to a process for preparing a high-molecular polyamide or polyester by melt-mixing polyamide or polyester having a lower molecular weight with a carbonyl bislactam having formula 1, in which n=an integer of between 3 and 15. With the process according to the invention a permanent increase in the molecular weight of a polyamide is obtained within 2 minutes, whereas this takes at least 10 minutes under comparable conditions using a bislactam according to the state of the art.Type: GrantFiled: April 19, 2002Date of Patent: June 15, 2004Assignee: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum, Petrus M. M. Nossin
-
Patent number: 6683151Abstract: The invention relates to a compound comprising a reaction product of (A) an isocyanate functional compound of which at least 40 wt. %, relative to the total amount of (A), has a molecular weight of at least about 500, and (B) a nitrogen-containing compound capable of reacting with said isocyanate functional compound (A). The reaction product has a molecular weight of less then about 20,000 and comprises an effective amount of groups that are able to form reversible intermolecular physical interactions such that a resulting compound shows polymeric mechanical properties at a temperature below a transition temperature. The nitrogen-containing compound is, for instance, melamine, urea, acetoguanamine, benzoguanamine, cyanamide, dicyanamide, thiourea, isocytosine, pyrimidone or aminopyridine. The supramolecular compound comprising a suitable amount of the reaction products exhibits a relatively high elongation at break.Type: GrantFiled: February 24, 2000Date of Patent: January 27, 2004Assignee: DSM N.V.Inventors: Jacobus A. Loontjens, Johan E. G. A. Jansen, Bartholomeus J. M. Plum
-
Publication number: 20030232997Abstract: 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: ApplicationFiled: June 24, 2003Publication date: December 18, 2003Inventors: Rudolfus A.T.M. Van Benthem, Jacobus A. Loontjens, Patrick H.M. Hendriks, Bartholomeus J.M. Plum
-
Patent number: 6660869Abstract: 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: GrantFiled: January 10, 2002Date of Patent: December 9, 2003Assignee: DSM N.V.Inventors: Rudolfus A. T. M. Van Benthem, Jacobus A. Loontjens, Patrick H. M. Hendriks, Bartholomeus J. M. Plum
-
Publication number: 20030176594Abstract: The invention relates to a process for preparing a high-molecular polymer by contacting in a melt a difunctional lowermolecular polymer whose functional end groups are —OH or —NH2 groups with carbonylbislactamate, characterized in that the melt also contains an acid or a base as a catalyst. If the difunctional polymer contains a —COOH group, it is preferred for the melt also to contain a bisoxazine or a bisoxazoline.Type: ApplicationFiled: December 12, 2002Publication date: September 18, 2003Inventors: Jacobus A. Loontjens, Bartholomeus J.M. Plum
-
Publication number: 20030149228Abstract: The invention relates to a process for preparing a branched polymer by contacting a monofunctional or difunctional polymer whose functional group is at least an —OH or an —NH2 group with a multifunctional compound RYn, where n>2 and Y is an —OH group, an —NHm group where m=1,2 or a —COOH group and R is an alkyl, an aryl group or a cyclic group and in which the Y groups need not be the same and in which carbonyl bislactamate is also present.Type: ApplicationFiled: January 15, 2003Publication date: August 7, 2003Inventors: Jacobus A Loontjens, Bartholomeus J M Plum
-
Publication number: 20030149224Abstract: 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: ApplicationFiled: December 13, 2002Publication date: August 7, 2003Inventors: Jacobus A Loontjens, Rudolfus A T M Van Benthem, Bartholomeus J M Plum, Johan Rietberg
-
Publication number: 20030073806Abstract: The invention relates to a process for preparing a high-molecular polyamide or polyester by melt-mixing polyamide or polyester having a lower molecular weight with a carbonyl bislactam having formula 1, in which n=an integer of between 3 and 15.Type: ApplicationFiled: April 19, 2002Publication date: April 17, 2003Applicant: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J.M. Plum
-
Patent number: 6448394Abstract: The invention relates to a process for the preparation of an N-alkyl or N-aryl carbamoyl derivative in which an amine is contacted with a carbonic acid derivative according to the general formula: where fragments X in the form of XH are a lactam, oxime, imide or triazole. In particular the invention relates to the preparation of a blocked isocyanate according to a process in which no isocyanate is used. The invention also relates to the use of the N-alkyl or N-aryl carbamoyl derivative prepared according to the process according to the invention in a coating.Type: GrantFiled: March 23, 2001Date of Patent: September 10, 2002Assignee: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum
-
Publication number: 20020091203Abstract: 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: ApplicationFiled: January 10, 2002Publication date: July 11, 2002Inventors: Rudolfus A.T.M. Van Benthem, Jacobus A. Loontjens, Patrick H.M. Hendriks, Bartholomeus J.M. Plum
-
Patent number: 6395869Abstract: A high molecular weight polyester-amide block copolymer is produced by reacting a mixture of lower molecular weight polyester and polyamide in the melt with a carbonyl bislactam, especially carbonyl biscaprolactam. The higher molecular weight block copolymer may be obtained in as short a time as 2 minutes, whereas, at least about 10 minutes is required in a conventional process, under comparable conditions, using a bislactam.Type: GrantFiled: January 31, 2001Date of Patent: May 28, 2002Assignee: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum
-
Publication number: 20020028932Abstract: The invention relates to a process for the preparation of an N-alkyl or N-aryl carbamoyl derivative in which an amine is contacted with a carbonic acid derivative according to the general formula: 1Type: ApplicationFiled: March 23, 2001Publication date: March 7, 2002Inventors: Jacobus A. Loontjens, Bartholomeus J.M. Plum
-
Publication number: 20010016630Abstract: The invention relates to a process for preparing a high-molecular polyamide or polyester by melt-mixing polyamide or polyester having a lower molecular weight with a carbonyl bislactam having formula 1, in which n=an integer of between 3 and 15.Type: ApplicationFiled: January 31, 2001Publication date: August 23, 2001Applicant: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum
-
Patent number: 6228980Abstract: The invention relates to a process for preparing a high-molecular polyamide or polyester by melt-mixing polyamide or polyester having a lower molecular weight with a carbonyl bislactam having formula 1, in which n=an integer of between 3 and 15. With the process according to the invention a permanent increase in the molecular weight of a polyamide is obtained within 2 minutes, whereas this takes at least 10 minutes under comparable conditions using a bislactam according to the state of the art.Type: GrantFiled: October 20, 1999Date of Patent: May 8, 2001Assignee: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum