Patents Represented by Attorney Joseph D. Michaels
  • Patent number: 4914172
    Abstract: Water-soluble copolymers having a K value of from 8 to 100 (determined according to H. Fikentscher on sodium salt in aqueous solution at 25.degree. C., a pH of 7 and a polymer concentration of the Na salt of 1% by weight) contain, in polymerized form,(a) not less than 15 mol % of one or more monoethylenically unsaturated C.sub.3 -C.sub.6 -monocarboxylic acids,(b) from 0.5 to 84.5 mol % of one or more ethylenically unsaturated C.sub.4 -C.sub.6 -dicarboxylic acids,(c) from 0 to 20 mol % of one or more hydroxyalkyl esters, where hydroxyalkyl is of 2 to 6 carbon atoms, of monoethylenically unsaturated C.sub.3 -C.sub.6 -carboxylic acids,(d) from 0 to 30 mol % of other water-soluble, monoethylenically unsaturated monomers copolymerizable with (a), (b) and (c),(e) from 0.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: April 3, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Peter Seelmann-Eggebert, Dieter Boeckh, Heinrich Hartmann, Wolfgang Trieselt
  • Patent number: 4904408
    Abstract: A detergent contains as a grayness inhibitor in the wash and aftertreatment of textile material containing synthetic fibers a graft polymer obtainable by grafting(a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000 and is based on ethylene oxide, propylene oxide and/or butylene oxide with(b) N-vinlypyrrolidone and(c) a vinyl ester derived from a saturated monocarboxylic acid containing from 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a):(b):(c) of from 1:0.3:1 to 1:5:30, the order of the addition of (b) and (c) in the graft copolymerization being immaterial and it being possible for up to 1 mole % of the grafted-on monomers (c) to be hydrolyzed.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 27, 1990
    Inventors: Alexander Kud, Wolfgang Trieselt, Heinrich Hartmann
  • Patent number: 4885396
    Abstract: A process for the preparation of 2-hydroxy-4-(2'-hydroxyethoxy)benzophenones, by reacting 2,4-dihydroxybenzophenones with ethylene carbonate in the presence of a quaternary ammonium salt catalyst at elevated temperatures, and isolating the finished product from the crude reaction mixture.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: December 5, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Erwin Hahn, Peter Neumann
  • Patent number: 4849126
    Abstract: Detergents contain graft polymers obtainable by grafting(a) polycondensates based on polyesters, polyester urethanes and polyester amides and having in each case a number average molecular weight from 500 to 100,000 with(b) from 0.2 to 10 parts by weight, based on 1 part by weight of the polycondensates, of vinyl esters of saturated C.sub.1 - to C.sub.6 -carboxylic acids, acrylic and/or methacrylic esters of saturated monohydric alcohols containing 1 to 4 carbon atoms.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: July 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Kud, Wolfgang Trieselt, Heinrich Hartmann
  • Patent number: 4846995
    Abstract: A detergent containing as grayness inhibitor in the wash and aftertreatment of textile material containing synthetic fibers graft polymers obtainable by grafting(a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000, is based on ethylene oxide, propylene oxide and/or butylene oxide, and is end group capped at at least one end, with(b) at least on vinyl ester derived from a saturated monocarboxylic acid containing 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a):(b) of from 1:0.2 to 1:10.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: July 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Kud, Wolfgang Trieselt, Heinrich Hartmann
  • Patent number: 4846994
    Abstract: A detergent containing as grayness inhibitor in the wash and aftertreatment of textile material containing synthetic fibers graft polymers obtainable by grafting(a) polyalkylene oxides which have a number average molecular weight of from 300 to 100,000 and are based on ethylene oxide, propylene oxide and/or butylene oxide, with(b) at least one vinyl ester derived from a saturated monocarboxylic acid containing 3 to 6 carbon atoms, a methyl or ethyl ester of (meth)acrylic acid and optionally mixtures of at least one of the monomers mentioned and up to 95% by weight of vinyl acetate in a weight ratio (a):(b) of from 1:02 to 1:10.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: July 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Kud, Wolfgang Trieselt, Heinrich Hartmann
  • Patent number: 4818795
    Abstract: A process for the preparation of polymaleic acid by polymerizing maleic anhydride in an aromatic hydrocarbon at from 60.degree. to 200.degree. C., using from 1 to 20% by weight, based on maleic anhydride, of peroxyesters derived from saturated or ethylenically unsaturated carboxylic acids, as the polymerization initiators and hydrolyzing the polymer, the polymaleic acid thus obtained and the use of the polymaleic acid as an agent for reducing scale formation and hard water deposits in systems through which water flows.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: April 4, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Ekhard Winkler, Hans-Juergen Raubenheimer
  • Patent number: 4816553
    Abstract: Polyacetals obtainable by reaction of(a) a dialdehyde of the formulaOHC--A.sub.n --CHOwhereA=C.sub.1 -C.sub.4 -alkylene or ##STR1## and n is 0 or 1, is reacted with(b) a polycarboxylic acid of 5 to 7 carbon atoms which contains not less than 3 OH groups,in a molar ratio (a):(b) of 1:0.25 to 4 in an aqueous medium in the presence of an acid catalyst, are used as additives in washing agents and as complexing agents for heavy metal ions.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: March 28, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Rolf Fikentscher, Alfred Oftring, Felix Richter, Wolfgang Trieselt, Paul Diessel, Ekhard Winkler, Johannes Perner
  • Patent number: 4814102
    Abstract: Detergents which contain from 0.01 to 20% by weight of oxyalkylated, carbonyl-containing polymers can be prepared by reacting.(A) a polymer which contains, as copolymerized units, one or more monoethylenically unsaturated C.sub.3 -C.sub.6 -carboxylic acids with(B) ethylene oxide, propylene oxide, n-butylene oxide, isobutylene oxide or a mixture of these, in an aqueous medium at up to 150.degree. C.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: March 21, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Walter Denzinger, Albrecht Eckell, Heinrich Hartmann, Josef Mueller, Hans-Juergen Raubenheimer, Wolfgang Trieselt
  • Patent number: 4812350
    Abstract: Covered polyurethane foam panels have incorporated in them an adhesion enhancer which is composed of a polyester polyol and a heteric polyether polyol. The polyester polyol is preferably an adduct of adipic acid with ethylene glycol and butanediol. The heteric polyether polyol contains from about 35 weight percent to about 75 weight percent ethylene oxide, the remainder being propylene or butylene oxide and has a functionality from about 2 to about 3.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: March 14, 1989
    Assignee: BASF Corporation
    Inventors: James E. Shrewsburg, Edward W. Cole, III
  • Patent number: 4762950
    Abstract: The subject invention relates to compositions prepared by oxyalkylation of N-(2-hydroxyalkyl)-aniline as the initiator compound with one or more alkylene oxides at elevated temperatures and in the presence of an alkali metal hydroxide. The resulting compositions have an unsymmetric structure with two functional groups, a secondary amino nitrogen and a hydroxyl group. The initiator compound reacts completely and removal of any residual initiator from the polyol is not required. When the subject invention polyol composition is reacted with an isocyanate, both urea and urethane groups form. The subject polyols may be used in the preparation of polyurethane products as well as nonionic and ionic surfactants.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: August 9, 1988
    Assignee: BASF Corporation
    Inventors: Alexander Korczak, William W. Levis, Jr.
  • Patent number: 4745230
    Abstract: Relates to deodorizing a polyoxypropylene group terminated polyoxyalkylene polyether polyol composition by removing allyloxypropan-2-ol in sufficient amount to reduce the content to less than 200 ppm.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: May 17, 1988
    Assignee: BASF Corporation
    Inventors: Jay G. Otten, Edward J. Parker
  • Patent number: 4743627
    Abstract: A method for producing liquid isocyanurate modified Polymeric MDI composition containing a high two-ring MDI content, and foams made therefrom is described. The method comprises trimerizing a polymeric MDI in the presence of catalytically effective amount of a trimerization catalyst to form an isocyanurate containing polyisocyanate having a viscosity of about 100,000 mPas. The trimerization catalyst is thereafter deactivated and the isocyanurate-modified polyisocyanate is blended with a methylene bis(phenylisocyanate) (MDI) to form a final product having a two-ring content of about 60 percent of the total ring content and a viscosity comparable to polymeric MDI. Foams produced using this liquid isocyanurate modified polymeric MDI are of a substantially lighter color than those produced from standard polymeric MDI.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 10, 1988
    Assignee: BASF Corporation
    Inventors: Thirumurti Narayan, Peter T. Kan
  • Patent number: 4743626
    Abstract: A process for the preparation of liquid polymethylene polyphenylene polyisocyanate blends containing carbodiimide-uretonimine isocyanate linkages, containing a high two-ring methylene bis(phenylisocyanate) content, and light colored polyurethane foams made therefrom. The process is comprised of reacting polymethylene polyphenylene polyisocyanate with a catalytically effective amount of a carbodiimide-uretonimine promoting compound at a temperature sufficient to promote the formation of carbodiimide-uretonimine linkages and an isocyanate content of about 25 percent and the desired viscosity is reached, and then reacting that product to deactivate the carbodiimide-uretonimine catalyst, and finally blending two ring methylene bis(phenylisocyanate) with the product to produce a mixture having a two ring isocyanate content of about 60 percent of the total ring content and a viscosity comparable to standard polymeric MDI.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 10, 1988
    Assignee: BASF Corporation
    Inventor: Thirumurti Narayan
  • Patent number: 4743393
    Abstract: The subject invention relates to a polyhydroxy alcohol-based antifreeze concentrate for engines containing aluminum parts which utilizes certain heteropolymolybdate compounds as corrosion inhibitors for aluminum parts. In addition, the antifreeze contains conventional components such as a buffer, silicate, and nitrate.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: May 10, 1988
    Assignee: BASF Corporation
    Inventor: Stanley T. Hirozawa
  • Patent number: 4738868
    Abstract: A continuous process for the preparation of fiber composite materials by impregnating fiber reinforcing material with a solution of a thermoplastic or thermosetting plastic precursor, followed by evaporating the solvent used by means of exposure to light having a wave length corresponding to the absorption maximum of the solvent.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: April 19, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Fischer, Artur Roeber
  • Patent number: 4739009
    Abstract: Bead polymers are prepared by reverse suspension polymerization by a process in which an aqueous solution of water-soluble ethylenically unsaturated monomers are polymerized in an aliphatic hydrocarbon using an inorganic suspending agent based on a modified finely divided mineral and, in addition, from 0.1 to 5% by weight, based on the monomers used, of a nonionic surfactant, in the presence of a polymerization initiator, with the formation of a water-in-oil polymer suspension.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: April 19, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Wilfried Heide, Heinrich Hartmann, Christos Vamvakaris
  • Patent number: 4735015
    Abstract: A plant seed is prepared by enveloping the seed in a coating of a film-forming composition comprising certain polyoxyethylene-polyoxybutylene block copolymers.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: April 5, 1988
    Assignee: BASF Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4721579
    Abstract: A new type of ionic thickener for water-based products including functional fluids such as hydraulic fluids, cosmetic emulsions, etc. These new thickeners are prepared from polyoxyalklylene glycols, higher alkyl monoepoxides, lower alkyl monohalo lower alkyl carboxylates, and alkali metal hydroxide. These novel thickeners are generally characterized by the following formula: ##STR1## wherein R is a methylene or lower polymethylene group, R' is a higher alkyl group and R" is selected from the group consisting of oxyethylene groups and heteric or block copolymer mixtures of oxyethylene and other lower oxyalkylene groups, said copolymer containing at least 75 percent oxyethylene groups.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: January 26, 1988
    Assignee: BASF Corporation
    Inventor: Bongsub Kim
  • Patent number: 4717774
    Abstract: The invention relates to an improved process for the preparation of toluene diamine from dinitrotoluene involving hydrogenation of dinitrotoluene with hydrogen gas at elevated temperatures and super atmospheric pressure in the presence of a supported nickel catalyst and carbon monoxide ranging from 0.001 to 0.1 volume percent. The rate of hydrogenation, product quality and yield are improved when hydrogen spiked with small amounts of carbon monoxide was used.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: January 5, 1988
    Assignee: BASF Corporation
    Inventors: Thirumurti Narayan, Peter T. Kan