Patents by Inventor Peter Wedl

Peter Wedl 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: 7071343
    Abstract: Epoxidized glyceride acetates are made by a process which comprises reacting an epoxy fatty acid ester and triacetin.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: July 4, 2006
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Peter Daute, Ralf Picard, Joerg-Dieter Klamann, Peter Wedl, Artur Peters
  • Publication number: 20040235991
    Abstract: Methods of stabilizing antistatically-finished, halogen-containing organic plastics are described, wherein the methods comprise: (a) providing an aminouracil of the general formula (I): 1
    Type: Application
    Filed: June 14, 2004
    Publication date: November 25, 2004
    Inventors: Peter Daute, Peter Wedl, Joerg-Dieter Klamann, Ernst-Udo Brand
  • Publication number: 20040225043
    Abstract: Methods of stabilizing antistatically-finished, halogen-containing organic plastics are described, wherein the methods comprise: (a) providing a cyanoacetylurea of the general formula (I):
    Type: Application
    Filed: June 7, 2004
    Publication date: November 11, 2004
    Inventors: Peter Daute, Peter Wedl, Joerg-Dieter Klamann, Ernst-Udo Brand
  • Publication number: 20040106812
    Abstract: The invention relates to an improved method for producing epoxidated glyceride acetates. The inventive method involves transesterifying epoxy fatty acid esters with triacetin.
    Type: Application
    Filed: January 8, 2004
    Publication date: June 3, 2004
    Inventors: Peter Daute, Ralf Picard, Joerg-Dieter Klamann, Peter Wedl, Artur Peters
  • Publication number: 20040054227
    Abstract: The invention relates to the use of compositions containing urea derivatives of cyanoacetic acid and urea as stabilisers for chlorine-containing thermoplastic plastics. Said derivatives are compounds of general formula (A), NC—CH2—CO—N(R1)—CO—NH—R2, where R1 and R2=independently, a branched or unbranched, linear or cyclic, alkyl group with 1 to 18 C atoms, an aryl group with 6 to 18 C atoms, optionally substituted by one or more alkyl groups with 1 to 6 C atoms.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 18, 2004
    Inventors: Peter Daute, Joerg-Dieter Klamann, Ralf Picard, Dieter Marks, Peter Wedl
  • Patent number: 6649585
    Abstract: Processes for preparing superbasic zinc soaps are disclosed. The processes described comprise: (a) providing a basic zinc carbonate; (b) providing at least one organic carboxylic acid; and (c) reacting the basic zinc carbonate and the at least one organic carboxylic acid at a temperature of from about 100° C. to about 200° C. The use of such soaps for stabilizing halogen-containing plastic compositions is also described.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: November 18, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Peter Daute, Joerg-Dieter Klamann, Peter Wedl, Ralf Picard
  • Patent number: 6362261
    Abstract: A method of preparing a modified cationic layer compound which includes providing a layer compound of the general formula (I): [EeZzDdVv(OH−)x](An−)a.qH2O  (I) wherein E represents one or more monovalent alkali metal cations, e represents a number of from 0 to about 2, Z represents one or more divalent metal cations, z represents a number of from 0 to about 6, D represents one or more trivalent metal cations, d represents a number of from 0 to about 3, V represents one or more tetravalent metal cations, v represents a number of from 0 to about 1, (An−) represents an acid anion wherein n represents an integer of from 1 to 3, q represents a number of from about 1 to about 10, and wherein x>a and e+2z+3d+4v=x+na; subjecting the layer compound to crystallization to provide a resultant material; and subjecting the resultant material to steam drying at a temperature of from about 200° C. to about 260° C.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: March 26, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Ilona Lange, Joerg-Dieter Klamann, Peter Daute, Juergen Foell, Peter Wedl, Stefan Kuepper
  • Patent number: 6166124
    Abstract: A process for the production of cationic layer compounds wherein layer compounds corresponding to general formula (I):--[E.sub.e Z.sub.z D.sub.d V.sub.v (OH.sup.-).sub.x ](A.sup.n-).sub.a.qH.sub.2 O-- (I)in whichE is a monovalent cation from the group consisting of alkali metals,e is a number of 0 to 2,Z is a divalent metal cation,z is a number of 0 to 6,D is a trivalent metal cation,d is a number of 0 to 3,V is a tetravalent metal cation,v is a number of 0 to 1,(A.sup.n-) is an acid anion having the charge n- where n is an integer of 1 to 3,q is a number of 1 to 10,with the proviso that x>a and e+2z+3d+4v=x+na, are subjected to alkali-induced ripening in aqueous medium wherein the alkali metal hydroxide content of said aqueous medium is adjusted to a value in the 1- to 6-molar range, the crystallization temperature is adjusted to a value in the range from 60.degree. C. to 100.degree. C., and the crystallization time is adjusted to a value in the range from 2.5 to 50 hours.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: December 26, 2000
    Assignee: Cognis Deutschland GmbH
    Inventors: Ilona Lange, Joerg-Dieter Klamann, Juergen Foell, Peter Wedl, Dieter Marks
  • Patent number: 6140401
    Abstract: The invention concerns the use of a stabilizer combination for polyvinylchloride-based moulding compounds. The stabilizer combination contains (a) at least one solid inorganic component in amounts ranging from 0.3 to 3 parts by weight, relative to 100 parts by weight of polyvinylchloride, selected from sodium aluminosilicates, hydrotalcites and calcium-aluminium-hydroxy-phosphites, and (b) at least one solid or liquid zinc salt in amounts corresponding to a zinc to component (a) ratio of from 0.02 to 0.25 to 1, selected from zinc salts of monocarboxylic acids, substituted or unsubstituted benzoic acid and dicarboxylic acids. This stabilizer combination is used in the production of half-hard and soft polyvinylchloride foils by the calendering process in order to prevent a build-up of coating on the rollers used in this process.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: October 31, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Peter Wedl, Ernst-Udo Brand, Arthur Peters, Joerg-Dieter Klamann
  • Patent number: 5416135
    Abstract: Halogen-containing synthetic resins can be stabilized with calcium and zinc soaps of which the effectiveness is enhanced by co-stabilizers.The invention relates to special cationic layered hydrotalcite compounds having a specific BET surface of at least 50 m.sup.2 /g which are modified with at least one polymeric additive, to processes for the production of these cationic layer compounds and to their use as co-stabilizers for halogen-containing synthetic resins stabilized with calcium and/or zinc salts.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: May 16, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Helmut Endres, Herbert Fischer, Frido Loeffelholz, Peter Wedl, Kurt Worschech, Angela Hansen, Guenther Geismar
  • Patent number: 5416141
    Abstract: Halogen-containing synthetic resins can be stabilized with calcium and/or zinc soaps. Co-stabilizers are necessary for enhancing their stabilizing effect. The invention relates to special cationic layered hydrotalcite compounds having a specific BET surface of at least 50 m.sup.2 /g which are modified with polyols, epoxidized esters, full and partial esters of polyols and/or phosphites, to a process for their production and to their use as co-stabilizers for halogen-containing synthetic resins stabilized with calcium and/or zinc salts.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: May 16, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Helmut Endres, Frido Loeffelholz, Peter Wedl, Kurt Worschech, Angela Hansen, Guenther Geismar
  • Patent number: 5302644
    Abstract: Abstract of the Disclosure Stabilizer combination for Ca/Zn-stabilized PVC molding materials, containing (a) Ca salts of saturated, straight-chain C.sub.8 -C.sub.34 fatty acids, (b) Zn salts of saturated, straight-chain or branched C.sub.8 -C.sub.22 fatty acids, (c) epoxidized glycerides of unsaturated, straight-chain C.sub.16 -C.sub.22 fatty acids having an oxirane number of 6 to 8 and iodine number less than 5, and (d) ketofatty acid glycerides of general formula R.sup.1 COO--CH.sub.2 -(R.sup.2 COO)CH-CH.sub.2 -OCR.sub.3, in which the groups R.sup.1 COO--, R.sup.2 COO--, and R.sup.3 COO-- stand for residues of ketofatty acids with 16 to 22 carbon atoms and optionally residues of fatty acids with 12 to 22 carbon atoms, and 60 to 100 wt.% of the groups are derived from the ketofatty acids and 40 to 0 wt.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: April 12, 1994
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Gerhard Stoll, Ernst-Udo Brand, Peter Wedl
  • Patent number: 5248333
    Abstract: Mixtures of light colored bis(C.sub.8 -C.sub.22 fatty acid) alkylene diamides, C.sub.8 -C.sub.22 fatty acid esters, and, if desired, metal soaps of C.sub.8 -C.sub.22 fatty acids can be obtained if, in a melt containing fatty acids with 8 to 22 carbon atoms, a part of the fatty acids are condensed to the corresponding fatty acid diamides with diamines of the general formula NH.sub.2 --R--NH.sub.2, in which R is a straight chain, branched, or cyclic alkylene group with 2 to 12 carbon atoms; a part of the fatty acids are esterified with fatty alcohols with 8 to 22 carbon atoms and/or multifunctional alkanols with 2 to 15 carbon atoms and 2 to 6 hydroxyl groups; and, if desired, a part of the fatty acids are converted to the corresponding metal soaps with basic compounds of divalent metals. The condensation with the diamines is carried out before the esterification of the fatty acids with fatty alcohols and/or multifunctional alkanols. The mixtures so obtained can be used as additives in plastics.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Erwin Fleischer, Peter Wedl, Frido Loeffelholz
  • Patent number: 5232967
    Abstract: Mixed esters comprising the reaction product ofa) an aliphatic, cycloaliphatic and/or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid containing up to 2 hydroxyl groups, or a mixture thereof;b) an aliphatic polyol containing from 3 to 6 hydroxyl groups or a mixture thereof; andc) an aliphatic C.sub.2 -C.sub.32 -monocarboxylic acid containing up to 2 hydroxyl groups, or a mixture thereof;wherein the molar ratio of components a) and b) is approximately n-1:n, wherein n is an integer of from 6 to 15, and component c) is selected so that at least one free hydroxyl group is present per molecule of the mixed ester, are useful as lubricants for the molding of thermoplastic plastics, especially polyvinyl chloride homopolymers or copolymers.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: August 3, 1993
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Kurt Worschech, Erwin Fleischer, Peter Wedl, Frido Loeffelholz, Udo E. Brand
  • Patent number: 5010123
    Abstract: Stabilizers for chlorine-containing olefin polymers containing Ca complexes of 1,3-diketones, hydrocarbon waxes and esters and/or partial esters of saturated, straight-chain C.sub.12 -C.sub.34 monocarboxylic acids, in conjunction with zinc salts of saturated, straight-chain C.sub.8 -C.sub.22 monocarboxylic acids and esters of phosphorous acid, provide the polymers with excellent properties in regard to processibility and temperature stability.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: April 23, 1991
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Peter Wedl, Erwin Fleischer, Frido Loeffelholz, Manfred Jaeckel
  • Patent number: 4962145
    Abstract: Partial esters of saturated, linear C.sub.22 -C.sub.34 -monocarboxylic acids with polyols containing at least 3 carbon atoms and at least 2 hydroxyl groups are provided. The partial esters contain on average at least 1 free hydroxyl group and are generally obtained as mixtures of partial esters of at least 2 of said C.sub.22 -C.sub.34 -monocaroxylic acids. Particularly contemplated are partial esters based on montanic acids. The partial esters exhibit excellent release effects and transparency properties when used as release agents for plastics based on PVC or PVC copolymers.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: October 9, 1990
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Erwin Fleischer, Peter Wedl, Frido Loeffelholz, Ernst-Udo Brand
  • Patent number: 4857216
    Abstract: A lubricant system for emulsion PVC of high K-value comprising:I. at least one ester from each of sections (A) and (B):A. a neutral ester substantially free from hydroxyl and carboxyl groups which is:(1) a mixed ester of an aliphatic, cycloaliphatic, or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid, or a mixture thereof; an aliphatic polyol containing from 2 to 6 hydroxyl groups; and an aliphatic C.sub.12 -C.sub.30 -monocarboxylic acid; or is(2) a fatty acid fatty alcohol ester containing a total of 36 to 44 carbon atoms; or is(3) a mixture of (1) and (2); andB. a partial ester containing on average at least one free hydroxyl or carboxyl polar group which is:(1) a mixed ester of an aliphatic, cycloaliphatic, or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid, or a mixture thereof; an aliphatic polyol containing from 2 to 6 hydroxyl groups; and an aliphatic C.sub.12 -C.sub.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: August 15, 1989
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Peter Wedl, Helmut Kachel, Guenter Schult
  • Patent number: 4767575
    Abstract: Dibasic lead-fatty acid salts are synthesized in a melt reaction between plumbous oxide and fatty acids in the presence of magnesium, calcium, and/or aluminum compounds. The salts are useful as stabilizers for halogen-containing polymers.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: August 30, 1988
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Peter Wedl, Erwin Fleischer, Frido Loeffelholz
  • Patent number: 4744927
    Abstract: Dibasic lead-fatty acid salts and mixtures thereof with neutral lead-fatty acid salts are synthesized in a melt reaction using a free-hydroxyl organic compound as a catalyst/initiator. The resulting products are useful as stabilizers for halogen-containing polymers.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: May 17, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Kurt Worschech, Peter Wedl, Erwin Fleischer, Frido Loeffelholz
  • Patent number: 4637887
    Abstract: Triglycerides containing hydroxy fatty acid residues, of the type obtainable by hydrogenating epoxidized natural fats and oils, are used as lubricants for the molding of polyvinyl chloride or copolymers predominantly containing vinyl chloride, and are a replacement for hardened castor oil.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: January 20, 1987
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Kurt Worschech, Frido Loeffelholz, Peter Wedl, Bernd Wegemund