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).
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Patent number: 4731398Abstract: 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: GrantFiled: November 7, 1986Date of Patent: March 15, 1988Assignee: Dynamit Nobel AGInventors: Hans Huber, Norbert Vollkommer
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Patent number: 4562225Abstract: 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: GrantFiled: January 23, 1985Date of Patent: December 31, 1985Assignee: Dynamit Nobel AGInventors: Hans Huber, Norbert Vollkommer
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Patent number: 4288607Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.Type: GrantFiled: March 12, 1979Date of Patent: September 8, 1981Assignee: Dynamit Nobel AktiengesellschaftInventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
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Patent number: 4284732Abstract: 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: GrantFiled: July 19, 1979Date of Patent: August 18, 1981Assignee: Dynamit Nobel AktiengesellschaftInventors: Egon N. Petersen, Norbert Vollkommer, Georg Blumfeld, Hermann Richtzenhain, Wilhelm Vogt
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Patent number: 4211730Abstract: 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: GrantFiled: July 10, 1978Date of Patent: July 8, 1980Assignee: Dynamit Nobel AktiengesellschaftInventors: Norbert Vollkommer, Egon N. Petersen, Herbert Klinkenberg, Werner Schmidt
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Patent number: 4163101Abstract: 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: GrantFiled: June 3, 1977Date of Patent: July 31, 1979Assignee: Dynamit Nobel AktiengesellschaftInventors: Gerhard Schade, Norbert Vollkommer, Helmut Wemheuer
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Patent number: 4152511Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.Type: GrantFiled: October 19, 1976Date of Patent: May 1, 1979Assignee: Dynamit Nobel AktiengesellschaftInventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
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Patent number: 4149008Abstract: 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: GrantFiled: March 23, 1977Date of Patent: April 10, 1979Assignee: Dynamit Nobel AktiengesellschaftInventors: Egon N. Petersen, Norbert Vollkommer, Georg Blumenfeld, Hermann Richtzenhain, Wilhelm Vogt
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Patent number: 4147881Abstract: 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: GrantFiled: August 19, 1976Date of Patent: April 3, 1979Assignee: Dynamit Nobel AktiengesellschaftInventors: Georg Blumenfeld, Egon N. Petersen, Hermann Richtzenhain, Wilhelm Vogt, Norbert Vollkommer
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Patent number: 4134934Abstract: 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: GrantFiled: January 9, 1978Date of Patent: January 16, 1979Assignee: Dynamit Nobel AktiengesellschaftInventors: Georg Blumenfeld, Norbert Vollkommer
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Patent number: 4128709Abstract: 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: GrantFiled: June 17, 1976Date of Patent: December 5, 1978Assignee: Dynamit Nobel AktiengesellschaftInventors: Norbert Vollkommer, Egon N. Petersen, Herbert Klinkenberg, Werner Schmidt
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Patent number: 4119612Abstract: 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: GrantFiled: April 29, 1976Date of Patent: October 10, 1978Assignee: Dynamit Nobel AktiengesellschaftInventors: Norbert Vollkommer, Gerhard Schade, Egon Norbert Petersen, Gerhard Bier, Herbert Klinkenberg, Werner Schmidt
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Patent number: 4113703Abstract: 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: GrantFiled: December 12, 1975Date of Patent: September 12, 1978Assignee: Dynamit Nobel AktiengesellschaftInventors: Georg Blumenfeld, Norbert Vollkommer
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Patent number: 4078148Abstract: 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: GrantFiled: October 10, 1973Date of Patent: March 7, 1978Assignee: Dynamit Nobel AktiengesellschaftInventors: Norbert Vollkommer, Hermann Richtzenhain, Gerhard Bier, Manfred Gorlitz
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Patent number: 4036819Abstract: 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: GrantFiled: May 15, 1975Date of Patent: July 19, 1977Assignee: Dynamit Nobel AktiengesellschaftInventors: Moustafa El-Chahawi, Norbert Vollkommer
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Patent number: 4031163Abstract: 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: GrantFiled: March 25, 1975Date of Patent: June 21, 1977Assignee: Dynamit Nobel AktiengesellschaftInventors: Norbert Vollkommer, Werner Trautvetter
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Patent number: 3976623Abstract: 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: GrantFiled: November 8, 1973Date of Patent: August 24, 1976Assignee: Dynamit Nobel AktiengesellschaftInventor: Norbert Vollkommer
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Patent number: 3947402Abstract: 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: GrantFiled: January 26, 1973Date of Patent: March 30, 1976Assignee: Dynamit Nobel AktiengesellschaftInventors: Norbert Vollkommer, Erich Behr