Patents Assigned to Hoechst Mitsubishi Kasei Co.
-
Patent number: 5569751Abstract: The present invention relates to new useful azo dyestuffs which are free from ionic groups, of the general formula I ##STR1## wherein X.sup.1, X.sup.2, X.sup.3, Y, R, R.sup.1 and R.sup.2 have the meanings given in Claim 1, mixtures of dyestuffs of the general formula I, the preparation of dyestuffs of the general formula I and their use for dyeing and printing hydrophobic fibre materials.Type: GrantFiled: May 24, 1995Date of Patent: October 29, 1996Assignee: Hoechst Mitsubishi Kasei Co.Inventor: Ulrich Buhler
-
Patent number: 5512063Abstract: The present invention relates to the use of phenol- and naphthol-novolak alkoxylate mixed esters which as dyeing auxiliaries in the dyeing of polyester-cellulose blend fabrics prevent soiling of the cellulose portion by the disperse dyestuff and to processes for the continuous dyeing of such blend fabrics using phenol- and naphthol-novolak alkoxylate mixed esters.Type: GrantFiled: September 16, 1994Date of Patent: April 30, 1996Assignee: Hoechst Mitsubishi Kasei CoInventor: Hubert Kruse
-
Patent number: 5474579Abstract: The present invention relates to mixtures of monoazo dyes, characterised in that they comprise one or more dyes of the general formula I ##STR1## one or more dyes of the general formula II ##STR2## and one or more dyes of the general formula III ##STR3## in which R.sup.1 to R.sup.8 independently of one another, are methyl, ethyl or n-propyl and R.sup.1 and R.sup.2 may each also be i-propyl and Hal is chlorine or bromine, processes for their preparation and their use for the dyeing and printing of hydrophobic synthetic fibre materials and blends thereof with natural fibre materials.Type: GrantFiled: September 8, 1994Date of Patent: December 12, 1995Assignee: Hoechst Mitsubishi Kasei Co.Inventor: Ulrich Buhler
-
Patent number: 5440024Abstract: A monoazo disperse dye for dyeing polyester fibers of the following formula (I): ##STR1## wherein one of R.sup.1 and R.sup.2 is ##STR2## wherein W is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl or alkoxy, the other of R.sup.1 and R.sup.2 is C.sub.1 -C.sub.4 alkyl, or C.sub.2 -C.sub.4 alkyl substituted by cyano, halogen, hydroxy, hydroxyalkoxy, C.sub.1 -C.sub.4 alkoxy, hydroxyalkoxyalkoxy, acetoxalkoxy, acyloxyalkoxyalkoxy alkoxyalkoxy, alkoxycarbonyloxy or acetoxy, and Y is hydrogen or halogen.Type: GrantFiled: July 13, 1993Date of Patent: August 8, 1995Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Kiyoshi Himeno, Toshio Hihara, Wataru Shimizu
-
Patent number: 5425785Abstract: The present invention relates to a process for dyeing polyester or polyester-containing textile materials at pH 8 to pH 11 with one or more monoazo dyestuffs of the general formula I ##STR1## in which A, R and X.sup.1 to X.sup.3 are as defined in claim 1.Type: GrantFiled: August 17, 1994Date of Patent: June 20, 1995Assignee: Hoechst Mitsubishi Kasei Co.Inventors: Ulrich Buhler, Ralf Zerrer
-
Patent number: 5415669Abstract: The present invention relates to mixtures of dyes of the general formula I ##STR1## in which R.sup.1 is hydrogen, halogen, (C.sub.1 -C.sub.4) -alkyl or (C.sub.1 -C.sub.4)-alkoxy;R.sup.2 is hydrogen, halogen, cyano, (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy, (C.sub.1 -C.sub.4)-alkoxycarbonyl, (C.sub.1 -C.sub.4)-alkylcarbonyloxy or phenyl, which may be substituted or unsubstituted;R.sup.3 is hydrogen, (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy or phenyl, which may be substituted or unsubstituted; andR.sup.4 is hydrogen, halogen, (C.sub.1 -C.sub.4)-alkoxy, phenylthio or phenoxy, which may be substituted or unsubstituted, to processes for their preparation and to the use of the dyes of the general formula I and their mixtures with one another for the dyeing and printing of textile hydrophobic synthetic fibre materials and blends thereof with natural fibre materials.Type: GrantFiled: January 19, 1993Date of Patent: May 16, 1995Assignee: Hoechst Mitsubishi Kasei Co.Inventors: Ulrich Buhler, Hubert Kruse, Erwin Dietz
-
Patent number: 5389109Abstract: The present invention relates to a process for the preparation of highly thermomigration-resistant dyeings on fiber materials composed entirely or in part of polyester, in which the fiber materials, after dyeing, are subjected to a heat treatment, characterized in that dyeing is carried out with one or more dyes of the general formula I ##STR1## in which R.sup.1 and R.sup.2 independently of one another, are methyl and ethyl.Type: GrantFiled: November 23, 1992Date of Patent: February 14, 1995Assignee: Hoechst Mitsubishi Kasei Co.Inventor: Ulrich Buhler
-
Patent number: 5340930Abstract: A monoazodye of the following formula (I): ##STR1## wherein R.sup.1 is hydrogen, methyl or chlorine, R.sup.2 is hydrogen or methyl, R.sup.3 is C.sub.1 -C.sub.5 alkyl, R.sup.4 is phenyl, benzyl, phenoxy, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkyl or benzyloxy, provided that when R.sup.4 is alkyl, the total number of carbon atoms of R.sup.3 and R.sup.4 is at least 4.The monoazo dye of the present invention can be used to dye fibers such as polyester fibers, blended yarn products or combined filament yarn products such as polyester fibers with natural fibers.Type: GrantFiled: June 3, 1992Date of Patent: August 23, 1994Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Kiyoshi Himeno, Ryouichi Sekioka
-
Patent number: 5332404Abstract: A disperse dye mixture comprising a monoazo dye of the following formula (1) and a monoazo dye of the following formula (2) blended thereto in an amount of from 0.1 to 10 times by weight of the dye of the formula (1): ##STR1## wherein each of X.sup.1 and X.sup.2 which are independent of each other, is nitro, cyano, sulfomethyl or halogen, each of Y.sup.1, Y.sup.2, Z.sup.1 and Z.sup.2 which are independent of one another, is hydrogen, cyano, nitro, trifluoromethyl, halogen or sulfomethyl, each of W.sup.1 and W.sup.2 which are independent of each other, is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl or alkoxy, and each of R.sup.1 and R.sup.2 which are independent of each other, is C.sub.1 -C.sub.4 alkyl, or C.sub.2 -C.sub.4 alkyl which is substituted by cyano, halogen, hydroxy, hydroxyalkoxy, C.sub.1 -C.sub.4 alkyl, hydroxyalkoxyalkoxy, acyloxyalkoxy, acyloxyalkoxyalkoxy or alkoxyalkoxy.Type: GrantFiled: December 10, 1992Date of Patent: July 26, 1994Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Kiyoshi Himeno, Toshio Hihara, Hirotsugu Tsumura, Yoshiharu Hamano
-
Patent number: 5304222Abstract: A disperse dye mixture comprising from 20 to 80% by weight of a red disperse dye of the following formula (A) and from 20 to 80% by weight of a red disperse dye of the following formula (B): ##STR1## wherein R.sup.1 is --C.sub.2 H.sub.5 or --C.sub.2 H.sub.4 OCOCH.sub.3, R.sup.2 is --C.sub.2 H.sub.4 OCOCH.sub.3 or --C.sub.2 H.sub.4 CN, and R.sup.3 is hydrogen or --CH.sub.3.Type: GrantFiled: June 17, 1992Date of Patent: April 19, 1994Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Ryouichi Sekioka, Kouichi Seto
-
Patent number: 5292872Abstract: A Monoazo dye of the general formula I ##STR1## in which X is methyl, chlorine or bromineR.sup.1 is ethyl, n-propyl, i-propyl, n-butyl or i-butylR.sup.2 is methyl, ethyl, n-propyl, i-propyl, n-butyl or i-butyl andn is 2 or 3,mixtures containing dyes of the general formula I and the preparation of these dyes and their mixtures and their use for the dyeing of hydrophobic synthetic materials, in particular for automotive cover fabrics.Type: GrantFiled: November 24, 1992Date of Patent: March 8, 1994Assignee: Hoechst Mitsubishi Kasei Co.Inventor: Ulrich Buhler
-
Patent number: 5290931Abstract: Water-insoluble naphthalic acid imide dyestuffs of the following formula: ##STR1## wherein D is ##STR2## wherein R.sup.1 is C.sub.1 -C.sub.8 alkyl which may be substituted, R.sup.2 is hydrogen, halogen, lower alkyl, lower alkoxy or cyano, X is oxygen or sulfur, and m is 0 or 1; A is phenylene, alkylene, aralkylene or --C.sub.2 H.sub.4 OC.sub.2 H.sub.4 --; B is oxygen, sulfur or ##STR3## wherein R.sup.3 is hydrogen or lower alkyl; Y is a 6-membered nitrogen-containing heterocyclic ring having at least one active halogen atom; and n is 0 or 1.Type: GrantFiled: September 4, 1992Date of Patent: March 1, 1994Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Kiyoshi Himeno, Toshio Hihara
-
Patent number: 5278294Abstract: A monoazodye of the following formula (I): ##STR1## wherein X is CN, Cl or Br, one of R.sup.1 and R.sup.2 is phenyl and the other is --C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OR.sup.3, wherein R.sup.3 is C.sub.1 -C.sub.5 alkyl, formyl, C.sub.2 -C.sub.6 alkylcarbonyl or C.sub.2 -C.sub.6 alkoxycarbonyl.Type: GrantFiled: May 26, 1992Date of Patent: January 11, 1994Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Kiyoshi Himeno, Ryouichi Sekioka
-
Patent number: 5248314Abstract: The present invention relates to a process for the HT dyeing of polyester or polyester-containing textile materials at pH 8 to pH 11, characterised in that one or more monoazo dyes are used of the general formula I ##STR1## where Hal is chlorine or bromine,R is alkyl of 3 to 7 carbon atoms, andR.sup.1 and R.sup.2 are each independently of the other linear alkyl of 2 to 5 carbon atoms or allyl.Type: GrantFiled: October 26, 1992Date of Patent: September 28, 1993Assignee: Hoechst Mitsubishi Kasei Co.Inventor: Ulrich Buhler
-
Patent number: 5242467Abstract: A reactive dye mixture which comprises, as dye components, from 10 to 57% by weight of C.I. Reactive Orange 16 and from 90 to 43% by weight of C.I. Reactive Orange 7.Type: GrantFiled: August 28, 1992Date of Patent: September 7, 1993Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Yuji Yamada, Mitsuhiro Suzuki, Kensuke Suzuki
-
Patent number: 5201922Abstract: A disperse dye mixture comprising from 20 to 80% by weight of an orange disperse dye of the following formula (A) and from 20 to 80% by weight of an orange disperse dye of the following formula (B), as dye components: ##STR1##Type: GrantFiled: December 12, 1991Date of Patent: April 13, 1993Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Kouichi Seto, Riyouichi Sekioka
-
Patent number: 5114431Abstract: A disperse dye mixture comprising a red disperse dye of the following formula (A): ##STR1## and at least one red disperse dye of the following formula (B): ##STR2## wherein R.sup.1 is C.sub.2 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy C.sub.2 -C.sub.3 alkyl or C.sub.1 -C.sub.4 alkoxyethoxyethyl, in a weight ratio of (B)/(A) of from 0.1 to 5.Type: GrantFiled: February 12, 1991Date of Patent: May 19, 1992Assignee: Hoechst Mitsubishi Kasei Co., Ltd.Inventors: Riyouichi Sekioka, Kouichi Seto