Patents by Inventor Lothar Jaeckel

Lothar Jaeckel 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: 5434237
    Abstract: Specific ester products obtainable by esterifying a selected polyethylene glycol with a dicarboxylic acid in a molar ratio of 1:0.25 to 1 are described. The novel ester compounds are efficient and easily biodegradable spin finishes.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: July 18, 1995
    Assignee: Hoechst AG
    Inventors: Frank Weinelt, Lothar Jaeckel, Ohannes Balekdijan
  • Patent number: 5389269
    Abstract: The invention relates to spin finishes comprising compounds of the formula ##STR1## in which R.sub.1 is a straight-chain or branched alkyl radical of the empirical formula C.sub.n H.sub.2n+1 or a straight-chain or branched alkenyl radical of the empirical formula C.sub.n H.sub.2n-1 where n is in each case 1 to 9 andR.sub.2 is a straight-chain or branched alkyl radical of the empirical formula C.sub.n H.sub.2n+1 where n is 2 to 16, and also to their use as spooling oils for synthetic fibers.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: February 14, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Frank Weinelt, Lothar Jaeckel, Adelgunde Oberhauser
  • Patent number: 5266221
    Abstract: The invention relates to spin finishes which contain compounds of the formulaHO(CH.sub.2 CH.sub.2 O).sub.x --RO--(CH.sub.2 CH.sub.2 O).sub.y H Iin whichR is an alkylene radical which is mono- or polysubstituted by alkyl, has 2 to 4 carbon atoms in the alkylene chain and contains methyl, ethyl, propyl or isopropyl as the alkyl substituent, andthe sum of x and y is 10 to 20, x and y being different from zero, and to a process for the spin finishing of fibers.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: November 30, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Lothar Jaeckel
  • Patent number: 5171877
    Abstract: The urethanes described are synthesized from aliphatic fluoro alcohols, triisocyanate and a carboxylic acid. They are prepared by reaction of the aliphatic fluoro alcohol with the triisocyanate to give the fluoro alcohol/triisocyanate adduct and by reaction of this adduct with the carboxylic acid. The new urethanes are preferably used for the finishing of textiles for the purpose of achieving water, oil and soil repellency.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: December 15, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Knaup, Rainer Kupfer, Rolf Kleber, Lothar Jaeckel, Fritz-Joachim Gohlke
  • Patent number: 4992595
    Abstract: Compounds of the formula ##STR1## where R.sub.1 denotes a group of the formula ##STR2## R.sub.2 denotes C.sub.1 -C.sub.4 -alkyl, R.sub.3 denotes hydrogen or methyl, n denotes a number from 5 to 100, m denotes an integer from 0 to 4 and x denotes the number of free valences of the particular R.sub.1 radical, a process for the preparation thereof, and the use thereof as fiber spin finishes.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: February 12, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Siegfried Billenstein, Lothar Jaeckel, Ignaz Wimmer
  • Patent number: 4960543
    Abstract: Urethanes made from aliphatic fluorinated alochols, isocyanates and substituted aromatic compounds, a process for their preparation, and their use.The novel urethanes are synthesized from an aliphatic fluorinated alcohol, an isocyanate and a specific substituted phenol or aniline compound. They are prepared by reacting an aliphatic fluorinated alcohol with a di- or triisocyanate to form a fluorinated alcohol/isocyanate adduct and reacting this adduct with a certain substituted phenol or aniline to form the urethanes intended. The novel urethanes are preferably used for oleophobic and hydrophobic finishing of textiles and leather.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: October 2, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
  • Patent number: 4883495
    Abstract: Amino-containing alkenylsuccinic esters of the formulae ##STR1## where R denotes linear or branched C.sub.1 -C.sub.20 -alkyl, R.sub.1 denotes hydroxy-C.sub.2 -C.sub.6 -alkyl or C.sub.1 -C.sub.4 -alkyl, R.sub.2 denotes methyl or ethyl, R.sub.3 denotes C.sub.6 -C.sub.20 -alkyl, preferably C.sub.12 -C.sub.18 -alkyl, or C.sub.6 -C.sub.20 -alkenyl, preferably C.sub.12 -C.sub.18 -alkenyl, A denotes --C.sub.2 H.sub.4 -- or C.sub.3 H.sub.7 -- and n denotes a number from 1 to 10, preferably from 3 to 8, the preparation thereof and the use thereof as thermostable lubricants in spin finishes.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: November 28, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Lothar Jaeckel, Rolf Kleber, Bernhard Mees
  • Patent number: 4781722
    Abstract: Novel alkanephosphonic monoester salts, preparation thereof and use thereof as spin finishes for textile fibersAlkylphosphonic monoester salts of the formula ##STR1## where R, if p=1, is alkyl, and, if p=4, a carbon atom, R.sup.1 denotes C.sub.1 -C.sub.4 -alkyl, A denotes C.sub.2 H.sub.4 and/or C.sub.3 H.sub.7, m denotes a number from 15 to 35, R.sup.2 denotes C.sub.6 -C.sub.24 -alkyl, n denotes a number from 0 to 15, and p denotes 1 or 4 . These compounds are suitable for use as spin finishes for textile fibers and are distinguished by very good thermostability.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: November 1, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Jerg Kleiner, Rolf Kleber, Lothar Jaeckel
  • Patent number: 4782175
    Abstract: The molecule of the new urethanes contains an aliphatic fluoroalcohol, an isocyanate and an aromatic dihydroxy, diamino, aminohydroxy, aminocarboxy or hydroxycarboxy compound. They are prepared by reacting an aliphatic fluoroalcohol with a diisocyanate or triisocyanate to give the fluoroalcohol/isocyanate adduct and by reacting this adduct with said aromatic compound to give the desired urethanes composed of an aliphatic fluoroalcohol, an isocyanate and the bifunctional aromatic compound mentioned, and also be reacting a urethane of this type which also carries an active hydrogen atom on the bifunctional aromatic compound, with an isocyanate compound containing one or more isocyanate groups. The new urethanes are preferably used for imparting an oleophobic and hydrophobic finish to textiles and leather.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: November 1, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
  • Patent number: 4766234
    Abstract: The novel urethanes, in addition to at least one perfluoroalkyl group, also contain epichlorohydrin groups and dialcohol radicals in the molecule. They are prepared by reacting a fluorine-containing alcohol with epichlorohydrin to give the perfluoroalkyl-epichlorohydrin adduct, reacting this adduct with a di- or triisocyanate to give the perfluoroalkyl-epichlorohydrin-isocyanate adduct and by reacting this adduct with a dialcohol or a monoetherified dialcohol to give the desired urethanes having a perfluoroalkyl group and having epichlorohydrin groups and dialcohol radicals, and by reacting a suitable urethane compound of this type with a perfluoroalkyl-containing di- or triisocyanate to give the desired urethanes having a plurality of perfluoroalkyl groups and having epichlorohydrin groups and dialcoholradicals. The novel urethanes are preferably used for the oleophobic and hydrophobic finishing of textiles.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: August 23, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
  • Patent number: 4322302
    Abstract: Agent for the liquid paraffin waxing of yarns which consists of(a) from 5 to 20% of paraffin, melting range of 45.degree. to 60.degree. C.;(b) from 2 to 10% of one or several alkyl imidazolines of the formula I ##STR1## in which R is C.sub.12 -C.sub.22 -alkyl, alkenyl or hydroxyalkyl,R.sub.1 is hydrogen or C.sub.1 -C.sub.22 -saturated or unsaturated aliphatic or aromatic acyl,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl,n is a number of from 2 to 6, andX is a halogen anion, a C.sub.1 -C.sub.4 -alkyl sulfate anion, a C.sub.1 -C.sub.4 -dialkyl phosphate anion, or a C.sub.1 -C.sub.4 -alkyl carboxylate anion;(c) from 1 to 5% of one or several aminoxides of the formula II ##STR2## in which R is C.sub.8 -C.sub.12 -alkyl or alkenyl,R.sub.1 is C.sub.1 -C.sub.4 -alkyl,R.sub.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, andn is a number of from 0 to 6, and (d) from 5 to 20% of one or several polyglycol ethers of the formula IIIR--O--(C.sub.2 H.sub.4 O).sub.n --H III,in whichR is C.sub.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: March 30, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Lothar Jaeckel
  • Patent number: 4278773
    Abstract: Easily dispersible compositions of(a) one part by weight of fluorocarbon resin,(b) from 1 to 10 parts by weight of a compound of the general formula ##STR1## in which R is C.sub.8 -C.sub.22 alkyl or alkenyl and R.sup.1 is hydrogen or hydroxyethyl, and(c) from 1 to 10 parts by weight of a compound of the general formulaR--(O--CH.sub.2 --CH.sub.2).sub.x --OHin which R is C.sub.8 -C.sub.22 alkyl or alkenyl and x is a number of from 15 to 50, preferably from 20 to 30.These compositions, which are prepared by melting the fluorocarbon resin together with the compounds (b) and (c), are readily dispersible in water and the obtained dispersions, which are stable to storage are used for the dirt-repelling finishing of textiles, leather or paper and as fiber conditioning compositions.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: July 14, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Lothar Jaeckel