Patents by Inventor Joachim Probst

Joachim Probst 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: 4806591
    Abstract: Cationic sizing agents for paper, obtainable by a process in which a water-soluble cationic terpolymer compound, built up in a chemically uniform manner, of (a) 7 to 40% by weight of N,N-dimethylaminoethyl acrylate and/or methacrylate, (b) 40 to 80% by weight of styrene and (c) 4 to 50% by weight of acrylonitrile, the sum of components (a) to (c) always being 100% by weight and at least 10% of the dimethylamino groups of the terpolymer being quaternized with monoepoxides, with the exception of epihalogenohydrins, and the remainder being protonated, is dissolved in an aqueous medium and, in the presence of 10 to 70% by weight--based on the following monomer mixture--of this emulsifier, (d) 5 to 95% by weight of acrylonitrile, meth-acrylonitrile or styrene or mixtures thereof and (e) 5 to 95% by weight of acrylic acid ester and/or methacrylic acid ester with 1 to 12 C atoms in the alcohol radical--the sum of components (d) and (e) always being 100% by weight--are emulsified and the emulsion thus obtained is sub
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: February 21, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Heinz Baumgen, Bruno Bomer, Joachim Konig, Renke Mottweiler
  • Patent number: 4784727
    Abstract: A sizing agent which contains from 1 to 60 parts, by weight, of a fixing and sizing accelerating agent and from 0 to 80 parts, by weight, of conventional auxiliaries per 10 parts by weight of hydrophobic, cellulose-reactive sizing materials, the fixing and sizing accelerating agent being a polymer composed of linear or branched carbon chains, to which primary, secondary or tertiary amino and/or quaternary ammonium groups are bound directly or by side chains exhibits a thorough and rapid sizing effect, in particular in the better sizing of paper.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: November 15, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolf-Dieter Schroer, Joachim Probst, Ingeborg Kolb, Ulrich Beck, Peter Mummenhoff, Heinz Baumgen
  • Patent number: 4732960
    Abstract: The present invention relates to a process for the production of polyisocyanate compositions containing urethane groups and having an isocyanate content of about 0.5 to 45% by weight by the reaction of(a) an organic polyisocyanate or mixtures thereof having an isocyanate content of about 30 to 50% by weight with(b) organic polyhydroxyl compounds using an equivalent ratio of isocyanate groups to hydroxyl groups of at least 1.8:1, characterized in that the polyhydroxyl compounds (b) are based on(b1) polyhydroxypolyacrylates having an average molecular weight, determined by vapor pressure osmometry, of 232 to about 100,000 which optionally contain urethane or ester groups in side chains, and a statistical average of at least one alcoholic hydroxyl group per molecule(b2) optionally in admixture with up to about 250% by weight, based on (b1), of other polyhydroxyl compounds in the molecular weight range of 62 to about 12,000.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: March 22, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Rasshofer, Reiner Paul, Joachim Probst
  • Patent number: 4659431
    Abstract: New, highly effective cationic sizing agents for paper have been provided.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: April 21, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Ulrich Beck, Heinz Baumgen
  • Patent number: 4645817
    Abstract: The present invention relates to a process for the preparation of alkoxylation products of organic carboxylic acids containing alcoholic hydroxyl groups by the reaction of any organic compounds containing at least one carboxyl group with alkylene oxides in an alkoxylation reaction in the presence of catalysts, characterized in that the catalysts used are phase transfer catalysts selected from the group consisting of(a) tetraalkylammonium or tetraalkylphosphonium halides in which the sum of carbon atoms of the alkyl groups is at least 8,(b) basic alkali metal compounds converted into complexes with crown ethers and(c) complexes of (i) basic alkali metal compounds and (ii) acyclic organic compounds containing at least 5 alkylene oxide units of the formula --R--O-- (R=C.sub.1 -C.sub.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: February 24, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Michael Sonntag, Roland Richter, Hanns P. Muller
  • Patent number: 4481319
    Abstract: Low-foam surface sizing agents for paper in the form of aqueous or aqueous-alcoholic alkali metal, amine or ammonium salt solutions of copolymers containing carboxylic acid semi-amide groups obtainable by reacting copolymers of maleic acid anhydride and diisobutylene and/or terpolymers of maleic acid anhydride, diisobutylene and a vinyl monomer copolymerizing with maleic acid anhydride, with from 5 to 50 mole percent, based on maleic acid anhydride groups, of a primary aliphatic or aromatic monoamine. The solutions may optionally contain urea or derivatives of urea.
    Type: Grant
    Filed: August 24, 1982
    Date of Patent: November 6, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Sackmann, Gunter Kolb, Joachim Probst, Friedhelm Muller, Heinz Baumgen
  • Patent number: 4442145
    Abstract: The invention relates to a process for the production of coatings using a coating composition containing as binder optionally blocked lacquer-grade polyisocyanates in combination with polyhydroxy polyacrylate resins based on copolymers of certain hydroxy alkyl(meth)acrylates, methyl methacrylate, 2-ethylhexyl acrylate and, optionally, (meth)acrylic acid, wherein the molecular weight is in the range from about 30,000 to 80,000, the content of low molecular weight constituents having molecular weights of at most about 3000 amounts to between 3 and 15% by weight, the molecular heterogeneity factor amounts to between about 1.0 and 10.0, and the parameter for the chemical heterogeneity of the copolymer is between 0 and about 0.06.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: April 10, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Bernd Riberi, Gunter Kolb, deceased, Peter Hohlein
  • Patent number: 4434269
    Abstract: Cationic sizing agents for paper in the form of an aqueous colloid-disperse solution having average particle diameters of from 15 to 200 nm are obtained by dissolving a water-soluble cationic, chemically uniformaly composed terpolymer compound of:(a) from 7 to 40% by weight of N,N-dimethylaminoethyl acrylate and/or methacrylate,(b) from 45 to 80% by weight of styrene, and(c) from 4 to 40% by weight of acrylonitrilein an aqueous medium, the total of components (a) to (c) always amounting to 100% by weight and at least 10% of the N,N-dimethylamino groups of the terpolymer being quaternized and the rest being protonated, and by emulsifying, in the presence of from 10 to 70% by weight, based on the following monomer mixture, of this emulsifier,(d) acrylonitrile or methacrylonitrile in quantities of from 5 to 95% by weight, with(e) C.sub.1 -C.sub.
    Type: Grant
    Filed: February 2, 1982
    Date of Patent: February 28, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, G/u/ nter Kolb, Peter Mummenhoff, Heinz B/a/ umgen
  • Patent number: 4423194
    Abstract: The present invention relates to new water-soluble polyquaternary compounds which are obtained by imidation of (A) specific alternating copolymers of maleic anhydride and olefines with (B) specific amines and (C) subsequent alkylation of the reaction product AB, the components (A) and (B) having the meaning given in the text of the Application. The invention furthermore relates to a process for the preparation of these water-soluble polyammonium compounds and their use as agents for improving the wet and dry tear strength of paper. The invention also relates to new intermediate products for the preparation of the compounds according to the invention.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: December 27, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilfried Lobach, Peter Haas, Gunter Kolb, Guter Sackmann, Joachim Probst
  • Patent number: 4418175
    Abstract: The aqueous solution of a statistical terpolymer containing quaternized amino groups and having a regular chemical structure of(a) from 8 to 20%, by weight, of N,N-dimethylaminoethyl acrylate and/or N,N-dimethylaminoethyl methacrylate;(b) from 45 to 80%, by weight, of styrene; and(c) from 8 to 35%, by weight, of acrylonitrile;the sum of (a) to (c) being 100%, by weight, and at least 10% of the dimethylamino groups of the terpolymer being quaternized and the remainder protonated is suitable as cationic paper sizing agent.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: November 29, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Gunter Kolb, Friedhelm Muller, Heinz Baumgen
  • Patent number: 4293661
    Abstract: A reaction product of an acrylate resin containing glycidyl groups and secondary mono-amines containing hydroxyl groups, obtained by reacting of said acrylate resin of copolymerized, statistically distributed units of(A) 3 to 30% by weight of the glycidyl ester of (meth)acrylic acid and/or of vinyl glycidyl ether;(B) 0 to 20% by weight of at least a hydroxy C.sub.2 -C.sub.4 alkyl ester of (meth)acrylic acid;(C) 5 to 80% by weight of at least an optionally substituted styrene, methyl methacrylate, (meth)acrylonitrile or any mixture thereof;(D) 5 to 70% by weight of an acrylic acid C.sub.1 -C.sub.12 -alkyl-or of a methacrylic acid C.sub.2 -C.sub.12 -alkyl ester or any mixture thereof; and(E) 0 to 10% by weight of an .alpha.,.beta.-mono-olefinically unsaturated monocarboxylic or dicarboxylic acid containing from 3 to 5 carbon atoms or of a maleic acid C.sub.2 -C.sub.14 -mono ester or any mixture thereof,with at least one secondary mono-amine containing at least one secondary hydroxyl group.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: October 6, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Michael Sonntag, Gunter Kolb
  • Patent number: 4165431
    Abstract: A chlorinated colorless polyolefin, preferably a chlorinated colorless isotactic polypropylene, soluble in carbon tetrachloride and having a chlorine content of from 60% to 70% by weight and an average degree of polymerization of from 2000 to 6000, produced by chlorinating polyolefins having a degree of polymerization of from 2000 to 20,000 in suspension or solution or in suspension and solution at 40 to 60.degree. C. in the presence of a halogen transfer agent, a chlorination catalyst and from 0.2 to 0.5% by weight, based on polyolefin, of at least one compound corresponding to the general Formula (I):h.sub.2 n--r--nh>.sub.n H (I)in which R represents the ethylene, propylene or butylene group and n=1-6.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: August 21, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Franz Alfes, Diez Heine, Reinhard Kaiser, Gunter Kolb, Joachim Probst, Franz Weider