Patents by Inventor Karel Cerovsky

Karel Cerovsky 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: 4758671
    Abstract: The present invention relates to a water-soluble cation-active polyelectrolyte which can be prepared by reacting one mole of a compound having the formula[R.sub.1 -A-B(-R.sub.2).sub.x ].sup.m+ m/r X.sup.r-whereinX is anionic residue of a strong inorganic or organic acid;r is an integer of 1, 2, or 3;x is an integer of 1 or 2;A is --CH.sub.2 --CH(OH)--CH.sub.2 --M.sup.+ --CH.sub.2 --CH(OH)--CH.sub.2 --,M is a bifunctional heterocyclic imidazole residue,B is selected from the group consisting of --[NR.sub.3 --(CH.sub.2).sub.n ].sub.s --NR.sub.4 -- and --[NR.sub.4 --(CH.sub.2).sub.n ].sub.s --NR.sub.3 -- when x=1 and.dbd.[N--(CH.sub.2).sub.n ].sub.s --NR.sub.4 --, --[NR.sub.3 --(CH.sub.2).sub.n ].sub.s --N.dbd., .dbd.[N--(CH.sub.2).sub.n --NR.sub.3 ].sub.s --, and --[NR.sub.4 --(CH.sub.2).sub.n --N].sub.s .dbd., when x=2,R.sub.1 is selected from the group consisting of Cl--, --OH, and H--B--,R.sub.2 is selected from the group consiting of H, --A--Cl, --A--OH, --A--B--H, and --A--B--A--R.sub.1,R.sub.3 and R.sub.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: July 19, 1988
    Assignee: Vyzkumny ustav textilniho zuslechtovani
    Inventors: Drahomir Dvorsky, Karel Cerovsky, Jiri Lukac, Jaromir Socha
  • Patent number: 4547574
    Abstract: Quaternary ammonium compounds suitable for use in finishing cellulose fiber containing textile material are described. The compounds are of the general formula ##STR1## wherein:k is an integer of 1-2,n is an integer of 1-3,X is an anion of a strong acid, andY is selected from among ##STR2## which are bound to the nitrogen atoms of a heterocyclic compound, M, which is a 5 or 6 membered ring.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: October 15, 1985
    Assignee: Vyzkumny ustav zuslechtovaci
    Inventors: Drahomir Dvorsky, Karel Cerovsky
  • Patent number: 4542217
    Abstract: Quaternary ammonium compounds suitable for use in finishing cellulose fiber containing textile material are described. The compounds are of the general formula ##STR1## wherein k is an integer of 1-2,n is an integer of 1-3,X is an anion of a strong acid, andY is selected from among ##STR2## and ##STR3## groups which are bound to the nitrogen atoms of a heterocyclic compound, M, which is a 5 or 6 membered ring.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: September 17, 1985
    Assignee: Vyzkumny ustav zuslechtovaci
    Inventors: Drahomir Dvorsky, Karel Cerovsky
  • Patent number: 4499282
    Abstract: Quaternary ammonium compounds suitable for use in finishing cellulose fiber containing textile material are described. The compounds are of the general formula ##STR1## wherein k is an integer of 1-2,n is an integer of 1-3,X is an anion of a strong acid, andY is selected from among ##STR2## which are bound to the nitrogen atoms of a heterocyclic compound, n, which is a 5 or 6 membered ring.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: February 12, 1985
    Assignee: Vyzkumny ustav zuslechtovaci
    Inventors: Drahomir Dvorsky, Karel Cerovsky
  • Patent number: 4468228
    Abstract: Quaternary ammonium compounds suitable for use in finishing cellulose fiber containing textile material are described. The compounds are of the general formula ##EQU1## wherein k is an integer of 1-2,n is an integer of 1-3,X is an anion of a strong acid, andY is selected from among ##STR1## which are bound to the nitrogen atoms of a heterocyclic compound, n, which is a 5 or 6 membered ring.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: August 28, 1984
    Assignee: Vykumny ustav zuslechtovaci
    Inventors: Drahomir Dvorsky, Karel Cerovsky
  • Patent number: 4369041
    Abstract: A technique is described for dyeing and printing textile materials of cellulose fibers and blends thereof with polyester fibers. The technique involves exposing the textile before and/or during the dyeing or printing sequence to the action of quaternary ammonium compound and a compound capable of releasing ammonia at a temperature within the range of 180.degree.-230.degree. C.
    Type: Grant
    Filed: May 12, 1981
    Date of Patent: January 18, 1983
    Assignee: Vyzkumny ustav zuslechtovaci
    Inventors: Drahomir Dvorsky, Karel Cerovsky, Jaromir Socha
  • Patent number: 4331441
    Abstract: Compound for use in the dyeing of cellulosic fibers by anionic dyes, method of making such compound and method of dyeing involving the use of such compound. The compound has the general formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyls with 1-3 carbon atoms, R.sub.3 is alkylene with 1-2 carbon atoms, R.sub.4 is a hydrogen atom or an alkyl with 1-2 carbon atoms, and X is an anion of a strong inorganic ore organic acid. Such compound may be produced by a method in which 70 to 80 parts by weight of 35% hydrochloric acid are gradually added to 100 parts by weight of N,N-dimethylbenzylamine whereupon the temperature of the reaction compound is adapted to the value of 40.degree. to 80.degree. C. and 55 to 75 parts by weight of epichlorhydrin are gradually added, wherein the temperature of the resulting compound is kept between 60.degree. to 100.degree. C. over the course of 60 to 120 minutes since the last addition of epichlorhydrin.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: May 25, 1982
    Assignee: Vyzkumny ustav zuslechtovaci
    Inventors: Drahomir Dvorsky, Karel Cerovsky