Patents by Inventor Wilhelm Elser
Wilhelm Elser 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: 6462113Abstract: Copolymerizates of methyl methacrylate and butyl methacrylate are used as plastisols in the automotive sector and as floor coverings. The invention describes a way to increase the storage stability of the plastisols by using small amounts of cross-linking agents.Type: GrantFiled: December 8, 1997Date of Patent: October 8, 2002Assignee: Roehm GmbH & Co. KGInventors: Wilhelm Elser, Guenther Schmitt, Ursula Rausch, Theodor Mager
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Patent number: 6337360Abstract: Poly(meth)acrylate dispersions, comprised of: (A) 50-90 wt. % methacrylic acid esters; (B) 5-30 wt. % acrylic acid alkyl esters; [lit., “acrylic acid acrylic esters”]; (C) 2-10 wt. % of another functionalized monomer; (D) 2-10 wt. % of a radically polymerizable carboxylic acid or a polycarboxylic acid or a partially esterified polycarboxylic acid; and (E) 0-40 wt. % of a monomer which is copolymerizable with components (A) to (D).Type: GrantFiled: July 31, 2001Date of Patent: January 8, 2002Assignee: Roehm GmbH Chemische FabrikInventors: Hubert Scheuermann, Dieter Tessmer, Karl Foelsch, Wilhelm Elser, Michael Wicke
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Patent number: 6323292Abstract: Poly(meth)acrylate dispersions, comprised of: (A) 50-90 wt. % methacrylic acid esters; (B) 5-30 wt. % acrylic acid alkyl esters; (C) 2-10 wt. % of another functionalized monomer; (D) 2-10 wt. % of a radically polymerizable carboxylic acid or a polycarboxylic acid or a partially esterified polycarboxylic acid; and (E) 0-40 wt. % of a monomer which is copolymerizable with components (A) to (D).Type: GrantFiled: May 11, 2001Date of Patent: November 27, 2001Assignee: Roehm GmbH Chemische FabrikInventors: Hubert Scheuermann, Dieter Tessmer, Karl Foelsch, Wilhelm Elser, Michael Wicke
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Publication number: 20010044491Abstract: Copolymerizates of methyl methacrylate and butyl methacrylate are used as plastisols in the automotive sector and as floor coverings. The invention describes a way to increase the storage stability of the plastisols by using small amounts of cross-linking agents.Type: ApplicationFiled: December 8, 1997Publication date: November 22, 2001Inventors: WILHELM ELSER, GUENTER SCHMITT, URSULA RAUSCH, THEODOR MAGER
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Publication number: 20010025077Abstract: Poly(meth)acrylate dispersions, comprised of:Type: ApplicationFiled: May 11, 2001Publication date: September 27, 2001Applicant: ROEHM GMBH CHEMISCHE FABRIKInventors: Hubert Scheuermann, Dieter Tessmer, Karl Foelsch, Wilhelm Elser, Michael Wicke
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Patent number: 6268065Abstract: A hot-sealable coated substrate comprising a primer layer from an aqueous poly(meth)acrylate dispersion, comprised of: (A) 50-90 wt. % methacrylic acid esters; (B) 5-30 wt. % acrylic acid alkyl esters [lit., “acrylic acid acrylic esters”]; (C) 2-10 wt. % of another functionalized monomer; (D) 2-10 wt. % of a radically polymerizable carboxylic acid or a polycarboxylic acid or a partially esterified polycarboxylic acid; and (E) 0-40 wt. % of a monomer which is copolymerizable with components (A) to (D).Type: GrantFiled: October 11, 2000Date of Patent: July 31, 2001Assignee: Roehm GmbH Cemische FabrikInventors: Hubert Scheuermann, Dieter Tessmer, Karl Foelsch, Wilhelm Elser, Michael Wicke
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Patent number: 6194514Abstract: Poly(meth)acrylate dispersions, comprised of: (A) 50-90 wt. % methacrylic acid esters; (B) 5-30 wt. % acrylic acid alkyl esters, [lit., “acrylic acid acrylic esters”]; (C) 2-10 wt. % of another functionalized monomer; (D) 2-10 wt. % of a radically polymerizable carboxylic acid or a polycarboxylic acid or a partially esterified polycarboxylic acid; and (E) 0-40 wt. % of a monomer which is copolymerizable with components (A) to (D).Type: GrantFiled: March 3, 1998Date of Patent: February 27, 2001Assignee: Roehm GmbH Chemische FabrikInventors: Hubert Scheuermann, Dieter Tessmer, Karl Foelsch, Wilhelm Elser, Michael Wicke
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Patent number: 5744565Abstract: A bead polymerizate P which is prepared by suspension polymerization of monomer and then mechanically comminuted.Type: GrantFiled: November 18, 1996Date of Patent: April 28, 1998Assignee: Roehm GmbH Chemische FabrikInventors: Peter Denkinger, Wilhelm Elser
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Patent number: 5492944Abstract: A powdery bonding agent for paints which is soluble in pure aliphatic compounds, and which is in the form of powdery polymerizate particles, which consists of, at least on the particle surface, of a copolymerizate formed of: (i) 60 to 95 percent by weight of units of at least one hardening monomer selected from the group consisting of (A) isobutylmethacrylate and (B) cycloalkylmethacrylate; and (ii) 5 to 40 percent by weight of units of at least one aliphatic-substance-solubilizing monomer selected from the group consisting of (C) alkylmethacrylates having 6 to 18 carbon atoms in the alkyl residue, where the units of isobutylmethacrylate account for no more than 60 percent by weight and the units of cycloalkylmethacrylates account for no less than 10 percent by weight, based on, in each case, the weight of the copolymerizate.Type: GrantFiled: November 25, 1994Date of Patent: February 20, 1996Assignee: Roehm GmbH Chemische FabrikInventors: Wilhelm Elser, Karl J. Folsch, Peter Rossberg, Dieter Tessmer, Michael Wicke
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Patent number: 5185387Abstract: An aqueous synthetic resin dispersion having a minimum film forming temperature below 50.degree. C., containing an emulsion polymer having a core/shell structure consisting ofA) 65-90 percent by weight of a weakly crosslinked core polymer having a glass transition temperature, T.sub.g, below 0.degree. C. and an extensibility of at least 150 percent, andB) 10-35 percent by weight of an essentially non-crosslinked shell polymer having a T.sub.g below 60.degree. C. the T.sub.g of the core polymer being at least 10 Centigrade degrees below that of the shell polymer.Type: GrantFiled: September 16, 1991Date of Patent: February 9, 1993Assignee: Rohm GmbHInventors: Wolfgang Klesse, Wilhelm Elser, Theodor Mager, Juergen Christner, Hertha Kraus, Peter Rossberg, Marliese Weber
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Patent number: 5139882Abstract: Varnishing plastic surfaces with a clear or pigmented aqueous dispersion of a (meth)acrylate copolymer of (a) 20 to 90% by weight of acrylic and/or methacrylic acid alkyl or cycloalkyl esters with 1 to 10 carbon atoms in the ester group; (b) 80 to 10% by weight of acrylic and/or methacrylic acid esters with aromatic groups as the ester group or containing aromatic groups in the ester group; and (c) optionally, small quantities of other monomers, results in the formation of a firmly adhering, water and alcohol resistant finish. The copolymers are preferably emulsion polymers and are synthesized as multiple-phase polymers according to the core-shell model.Type: GrantFiled: January 23, 1990Date of Patent: August 18, 1992Assignee: Rohm GmbH Chemische FabrikInventors: Wilhelm Elser, Klaus Langerbeins, Dieter Tessmer, Ursula Rausch, Karl-Josef Folsch
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Patent number: 5021469Abstract: The inventive vehicle, or binder, for water based gloss paints contains, dispersed in a aqueous phase, particles of a multiphase emulsion polymer made up of(a) core material having a glass transition temperature exceeding 40.degree. C. and(b) a shell material having a glass transition temperature of less than 70.degree. C. and at least 20 K. below that of the core material.The particles have an average diameter of less than 200 nm. The composition of the shell material includes an emulsion polymer with at least 4 percent by weight of an ethylenically unsaturated carboxylic acid and more than 80 percent by weight of one or more monomers from the group consisting of styrene and alkyl esters of acrylic and/or methacrylic acid. Paint coats produced with this vehicle are distinguished by a high blocking point.Type: GrantFiled: January 23, 1990Date of Patent: June 4, 1991Assignee: Rohm GmbHInventors: Klaus Langerbeins, Wolfgang Klesse, Dieter Tessmer, Wilhelm Elser, Hans-Juergen Geyer
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Patent number: 4582730Abstract: A method for priming an absorbent mineral or wood substrate to provide a wet-adhering coating, which comprises applying to said substrate a solution, in an organic solvent which has a normal boiling point between 50.degree. C. and 180.degree. C., of a copolymer of monomers of acrylate and methacrylate esters, of styrene and of vinyl esters, and of dialkylaminoalkyl esters of acrylic acid and of methacrylic acid and their corresponding amides, the maximum glass transition temperature of the copolymer being in the range from 20.degree. C. to 80.degree. C. and the reduced viscosity of the copolymer being in the range from 20 to 60 ml/g.Type: GrantFiled: January 28, 1985Date of Patent: April 15, 1986Assignee: Rohm GmbHInventors: Wilhelm Elser, Peter Rossberg, Michael Wicke
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Patent number: 4542171Abstract: A two-step emulsion polymerization method for making an aqueous emulsion of core/shell polymer particles recoverable as a polymer powder by spray drying the emulsion, said polymer being capable of swelling and forming a gel in gasoline, and paints and coating compositions containing gasoline and such a polymer powder as a thickening agent or binder.Type: GrantFiled: September 13, 1984Date of Patent: September 17, 1985Assignee: Rohm GmbHInventors: Wilhelm Elser, Klaus Huebner, Werner Siol, Theodor Mager, Michael Wicke
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Patent number: 4460721Abstract: A printing ink or varnish having a binder comprising isopropylmethacrylate and hydrophilic comonomers, particularly unsaturated carboxylic acids, their hydroxyalkyl esters, or a mixture thereof; preferably in combination with cellulose esters such as nitrocellulose, as an additional binder. The ink or varnish also contains dissolved or undissolved dyes, as well as a lower alkyl alcohol solvent. The printing and coatings thus produced are characterized by hardness and a high sealing stability.Type: GrantFiled: May 24, 1983Date of Patent: July 17, 1984Assignee: Rohm GmbH Chemische FabrikInventors: Wilhelm Elser, Manfred Munzer
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Patent number: 4171407Abstract: Non-blocking coatings are disclosed, which coatings comprise an acrylate ester emulsion polymer prepared by polymerization in the presence of a degraded starch which, in a 10 percent solution in 1 N NaOH, has a viscosity not greater than 15 mPa . s at a velocity gradient D=532.1 s.sup.-1.Type: GrantFiled: December 15, 1977Date of Patent: October 16, 1979Assignee: Rohm GmbHInventors: Wilhelm Elser, Klaus Huebner, Hans Ottofrickenstein, Hans Boessler
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Patent number: 4104227Abstract: Aqueous film-forming dispersions of a synthetic resin, said resin containing from 0.5 to 5 percent by weight of a heterocyclic comonomer of the formula ##STR1## wherein A--B is --C.dbd.C-- or --CH--CH--; R.sup.1 is hydrogen or lower alkyl; and R is an aliphatic group having a polymerizable carbon-carbon double bond therein; water-base paints comprising a pigment and filler dispersed in such an aqueous dispersion; and a method for overpainting substrates of oil-base paints or alkyl resin paints with such a water-base paint.Type: GrantFiled: October 18, 1976Date of Patent: August 1, 1978Assignee: Rohm GmbHInventors: Hanns Boessler, Wilhelm Elser, Klaus Huebner, Hans Ottofrickenstein