Patents by Inventor Norbert Vollkommer

Norbert Vollkommer 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: 4731398
    Abstract: Disclosed is a thermosetting adhesive and sealant composition of:20 to 60 wt. % of carboxyl-group-terminated polyesters with preferably at least two carboxyl groups per molecule, with a glass transition temperature below 20.degree. C.,2 to 12 wt. % of polyoxazolines which contain at least two oxazoline groups per molecule,2 to 40 wt. % of acrylic or methacrylic esters, preferably of polyvalent alcohols, and/or allyl esters of polyvalent carboxylic acids,which can contain preferably peroxides or aliphatic azo compounds as radical formers and, if desired, paraffin and reactive or nonreactive diluents and additives.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: March 15, 1988
    Assignee: Dynamit Nobel AG
    Inventors: Hans Huber, Norbert Vollkommer
  • Patent number: 4562225
    Abstract: Thermosetting adhesive and sealing compositions are described, consisting of:(a) 70 to 95 wt.-% of polyesters with a glass transition temperature below 20.degree. C., mixed in some cases with a polycarboxylic acid anhydride,(b) 5 to 30 wt.-% of polyoxazolines which contain at least 2 oxazoline groups per molecule, the polyoxazolines being suspended in the polyesters,(c) 0 to 4 wt.-% of paraffin and(d) optionally additional 1 to 50 weight-percent of the total amount of the components, of reactive or nonreactive diluents and/or additives and/or fillers.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: December 31, 1985
    Assignee: Dynamit Nobel AG
    Inventors: Hans Huber, Norbert Vollkommer
  • Patent number: 4288607
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: September 8, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
  • Patent number: 4284732
    Abstract: Halogen-containing bis-acrylates and bis-methacrylates corresponding to the formula ##STR1## in which R represents hydrogen or a methyl group and X represents chlorine and/or bromine, are provided as well as a process for producing such compounds. The compounds are useful for the formation of polymers and copolymers and as cross-linking agents. Also included in the invention are the polymers and copolymers based on the above-described halogen-containing bis-acrylates and bis-methacrylates, methods for the production of said polymers and the use of said polymers as flame proofing agents, etc.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: August 18, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Egon N. Petersen, Norbert Vollkommer, Georg Blumfeld, Hermann Richtzenhain, Wilhelm Vogt
  • Patent number: 4211730
    Abstract: A polymer having as a component thereof a moiety corresponding to a monomer having the following formula ##STR1## wherein n=0 or 1, X is bromine, chlorine or a mixture thereof and R represents hydrogen or methyl, a method of preparing the same and the use of such a polymer, including a copolymer thereof in a plastic composition containing a normally flammable plastic.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: July 8, 1980
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Norbert Vollkommer, Egon N. Petersen, Herbert Klinkenberg, Werner Schmidt
  • Patent number: 4163101
    Abstract: A process for preparing a poly-(alkylpentamethyleneterephthalamide) which comprises heating an aqueous solution of the corresponding nylon salt and still water soluble low molecular weight oligomer, the mixture of nylon salt and oligomer having 20 to 50 mole percent carbonamide groups and 50 to 80 mole percent salt groups, from a temperature at least as low as 150.degree. C. at atmospheric pressure up to a polycondensation temperature of at least 250.degree. C.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: July 31, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Schade, Norbert Vollkommer, Helmut Wemheuer
  • Patent number: 4152511
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: May 1, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
  • Patent number: 4149008
    Abstract: Halogen-containing bis-acrylates and bis-methacrylates corresponding to the formula ##STR1## in which R represents hydrogen or a methyl group and X represents chlorine and/or bromine, are provided as well as a process for producing such compounds. The compounds are useful for the formation of polymers and copolymers and as a cross-linking agents. Also included in the invention are the polymers and copolymers based on the above-described halogen-containing bis-acrylates and bis-methacrylates, methods for the production of said polymers and the use of said polymers as flame proofing agents, etc.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: April 10, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Egon N. Petersen, Norbert Vollkommer, Georg Blumenfeld, Hermann Richtzenhain, Wilhelm Vogt
  • Patent number: 4147881
    Abstract: Tetrahaloxylene diesters of formulas 1 and 2: ##STR1## wherein R= hydrogen or a methyl group, and each X is bromo, with the proviso that some of the X's can be chloro. The compounds are useful as flame retardants for plastics.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: April 3, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Georg Blumenfeld, Egon N. Petersen, Hermann Richtzenhain, Wilhelm Vogt, Norbert Vollkommer
  • Patent number: 4134934
    Abstract: An improvement in an unsaturated polyesters having recurring units of the formula ##STR1## wherein A is the residue of an alcoholic moiety and B is the residue of an acid moiety, which improvement resides in the fact that some of the A residues are chloroxylylene containing residues having the formula ##STR2##
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: January 16, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Georg Blumenfeld, Norbert Vollkommer
  • Patent number: 4128709
    Abstract: A polymer having as a component thereof a moiety corresponding to a monomer having the following formula ##STR1## WHEREIN N = 0 OR 1, X is bromine, chlorine or a mixture thereof and R represents hyrogen or methyl, a method of preparing the same and the use of such a polymer, including a copolymer thereof in a plastic composition containing a normally flammable plastic.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: December 5, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Norbert Vollkommer, Egon N. Petersen, Herbert Klinkenberg, Werner Schmidt
  • Patent number: 4119612
    Abstract: A polymeric formal having the general formula ##STR1## wherein p is 0 or 1, n is a positive integer from 2 to 200 and R represents optionally halogen-substituted straight-chained or branched-chained alkyl radicals having 3 to 8 carbon atoms, an aryl radical or an aralkyl radical which can be substituted on one or both sides with alkyl or hydroxyalkyl ether groups; improved methods for the preparation of such formals, tetrabromoxylylene-bis-(.beta.-hydroxyethylether) compounds employed in the preparation of such formals and the use of such polymeric and oligomeric formals as flame retardant agents in plastic compositions especially thermoplastic and polycondensation plastic compositions.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: October 10, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Norbert Vollkommer, Gerhard Schade, Egon Norbert Petersen, Gerhard Bier, Herbert Klinkenberg, Werner Schmidt
  • Patent number: 4113703
    Abstract: An improvement in an unsaturated polyesters having recurring units of the formula ##STR1## wherein A is the residue of an alcoholic moiety and B is the residue of an acid moiety, which improvement resides in the fact that some of the A residues are chloroxylylene containing residues having the formula ##STR2##
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: September 12, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Georg Blumenfeld, Norbert Vollkommer
  • Patent number: 4078148
    Abstract: Polyether ester polymers of tetrahydrofuran and .gamma.-butyrolactone or hexamethyleneoxide and .gamma.-butyrolactone. The polymers are prepared by contacting the mentioned monomers in the presence a fluoride or chloride of antimony or a chloride of tin or titanium. The polymers can be used as components in the preparation of polyurethanes.
    Type: Grant
    Filed: October 10, 1973
    Date of Patent: March 7, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Norbert Vollkommer, Hermann Richtzenhain, Gerhard Bier, Manfred Gorlitz
  • Patent number: 4036819
    Abstract: An unsaturated polyester having recurring units of the formula ##STR1## wherein A is an alcoholic moiety, Q is a moiety of other saturated dicarboxylate acids and B is a moiety of an unsaturated dicarboxylic acid, n is 1 to 4, the sum l + m + g is 2 to 20 and l may be 0 or a whole number, said polyester generally having between 1 and 80 mole percent of a chlorinated phenylene acetic acid moiety whose formula is ##STR2## a solution of said such unsaturated polyester, particularly a solution of the same in a copolymerizable monomer, formed objects thereof and a process for the preparation of such unsaturated polyester.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: July 19, 1977
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Moustafa El-Chahawi, Norbert Vollkommer
  • Patent number: 4031163
    Abstract: A cross-linked polymer having units of a residue of a chlorinated xylyleneglycolbisallylether, units of a residue of maleic acid anhydride and units of a residue of an epoxy compound; an improvement in a process for the preparation of a cross-linked hardenable resin wherein a composition comprising a chlorinated or brominated xylyleneglycolbisallylether and maleic acid anhydride is subjected to a preliminary setting process and thereafter cured wherein the composition contains an epoxy compound; shaped objects of the polymer especially when formed by the described process having good flame self-extinguishing properties and good thermal stability of shape.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: June 21, 1977
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Norbert Vollkommer, Werner Trautvetter
  • Patent number: 3976623
    Abstract: A copolymer of 1,2-dimethoxy ethylene and a cyclic compound having an oxygen atom as a component of the chain, said copolymer having the formula: ##EQU1## wherein Y is a straight bond or --CH.sub.2 --O--, R.sup.1 and R.sup.2 are independently hydrogen or alkyl of 1-4 carbon atoms, n and m an integers n + m = 10 to 1,000; a process for such copolymers which comprises contacting 1,2 dimethoxy ethylene under copolymerization conditions with a cyclic organic compound having oxygen in the ring, said compound selected from the group consisting of .beta.-lactones and cyclic six-membered ring carbonates in the presence of an initiator in an amount between 0.1 and 10 mole percent based upon said 1,2-dimethoxyethylene and said cyclic organic compound, which initiator is of the group of halogen containing organoaluminum compounds having the formulaAl(R).sub.a X.sub.bWhereinR is a saturated aliphatic radical of from about 1 to 6 carbon atoms, or phenyl,X is chlorine or bromine,a + b are each 1, 1.
    Type: Grant
    Filed: November 8, 1973
    Date of Patent: August 24, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventor: Norbert Vollkommer
  • Patent number: 3947402
    Abstract: In a process for the manufacture of a polyimide from a polyamide carboxylic acid solution by cyclodehydration of the polyamide carboxylic acid, the improvement which comprises carrying out said cyclodehydration in the presence of a nitrogen containing compound selected from the group consisting of quinoline, isoquinoline, mono-substituted alkyl pyridines, dialkyl substituted pyridines, mono-substituted alkyl quinolines, dialkyl substituted quinolines, monoaralkyl substituted quinolines, diaralkyl substituted quinolines, monoalkyl substituted isoquinolines, dialkyl substituted isoquinolines, monoaralkyl substituted isoquinolines, diaralkyl substituted isoquinolines and mixtures thereof.
    Type: Grant
    Filed: January 26, 1973
    Date of Patent: March 30, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Norbert Vollkommer, Erich Behr