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: 5434237Abstract: 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: GrantFiled: February 3, 1994Date of Patent: July 18, 1995Assignee: Hoechst AGInventors: Frank Weinelt, Lothar Jaeckel, Ohannes Balekdijan
-
Patent number: 5389269Abstract: 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: GrantFiled: January 13, 1994Date of Patent: February 14, 1995Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Frank Weinelt, Lothar Jaeckel, Adelgunde Oberhauser
-
Patent number: 5266221Abstract: 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: GrantFiled: October 15, 1992Date of Patent: November 30, 1993Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Lothar Jaeckel
-
Patent number: 5171877Abstract: 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: GrantFiled: December 26, 1990Date of Patent: December 15, 1992Assignee: Hoechst AktiengesellschaftInventors: Wolfgang Knaup, Rainer Kupfer, Rolf Kleber, Lothar Jaeckel, Fritz-Joachim Gohlke
-
Patent number: 4992595Abstract: 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: GrantFiled: November 23, 1988Date of Patent: February 12, 1991Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Siegfried Billenstein, Lothar Jaeckel, Ignaz Wimmer
-
Patent number: 4960543Abstract: 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: GrantFiled: December 27, 1988Date of Patent: October 2, 1990Assignee: Hoechst AktiengesellschaftInventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
-
Patent number: 4883495Abstract: 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: GrantFiled: September 21, 1988Date of Patent: November 28, 1989Assignee: Hoechst AktiengesellschaftInventors: Lothar Jaeckel, Rolf Kleber, Bernhard Mees
-
Patent number: 4781722Abstract: 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: GrantFiled: March 1, 1988Date of Patent: November 1, 1988Assignee: Hoechst AktiengesellschaftInventors: Hans-Jerg Kleiner, Rolf Kleber, Lothar Jaeckel
-
Patent number: 4782175Abstract: 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: GrantFiled: July 1, 1987Date of Patent: November 1, 1988Assignee: Hoechst AktiengesellschaftInventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
-
Patent number: 4766234Abstract: 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: GrantFiled: November 12, 1986Date of Patent: August 23, 1988Assignee: Hoechst AktiengesellschaftInventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
-
Patent number: 4322302Abstract: 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: GrantFiled: June 30, 1980Date of Patent: March 30, 1982Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Lothar Jaeckel
-
Patent number: 4278773Abstract: 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: GrantFiled: February 22, 1979Date of Patent: July 14, 1981Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Lothar Jaeckel