Abstract: Colorant compositions are useful for a wide variety of product applications. For example, colorants are used in tinting of polymers, providing colors to aqueous solution(s), and affording color to solid or semi-solid products such as detergents. Disclosed herein are colorant compositions having a triphenylmethane (“TPM”) derived structure having improved stability to alkaline conditions. Thus, the colorant compositions resist decolorization, even at relatively high pH levels. The colorant compositions of the invention are useful as applied in polyolefins, such as polypropylene and polyethylene, as examples. These colorant compositions also may be employed in thermoplastics, such as PET, for example.

Abstract: Disclosed are colorant compounds of the formula wherein R, R1, R2, R3, and R4 each, independently of the others, is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and wherein R, R1, R2, R3, and R4 each can be joined to a phenyl moiety to form a ring, each R?a, R?b, and R?c, independently of the others, is a halogen atom, an alkyl group, an alkoxy group, a nitrile group, a nitro group, an amide group, or a sulfonamide group, z1, z2, and z3 each, independently of the others, is an integer of 0, 1, 2, 3, or 4, n is an integer representing the number of carbon atoms in each repeat alkylene oxide unit, x is an integer representing the number of repeat alkylene oxide units, D is an anion, and g is the charge on the anion, wherein said colorant has no more than one —OH, —SH, or primary or secondary amino group per molecule.

Abstract: Process for preparing aqueous solutions of cationic di- and triarylmethane dyes by the aqueous dye solution, which contains organic solvents, being concentrated by nanofiltration and optionally diluted with water.

Abstract: One embodiment of the present invention is a method and composition comprising a novel pre-dye molecule that is colorless and stable to ordinary light. The pre-dye molecule is capable of forming a color when exposed to certain wavelengths of electromagnetic radiation. A second embodiment of the present invention is a method of converting a conventional leuco dye to a colored composition by exposing the leuco dye admixed with a radiation transorber to certain wavelengths of electromagnetic radiation.

Abstract: A process for preparing di- or triarylmethane dyes by oxidation of di- or triarylmethanes in the presence of a diluent and of an oxygen transfer catalyst that contains a complexed heavy metal ion comprises using as oxidizing agent hydrogen peroxide, a hydrogen peroxide donor compound, an organic hydroperoxide or a percarboxylic acid and as the oxygen transfer catalyst a member of the class of the porphyrins, tetraaza?14!annulenes, phthalocyanines or tetraazacyclotetradecanes.

Abstract: One embodiment of the present invention is a method and composition comprising a novel pre-dye molecule that is colorless and stable to ordinary light. The pre-dye molecule is capable of forming a color when exposed to certain wavelengths of electromagnetic radiation. A second embodiment of the present invention is a method of converting a conventional leuco dye to a colored composition by exposing the leuco dye admixed with a radiation transorber to certain wavelengths of electromagnetic radiation.

Abstract: A process for preparing di- or triarylmethane dyes by oxidation of di- or triarylmethanes in the presence of a diluent and of an oxygen transfer catalyst that contains a complexed heavy metal ion comprises using as oxidizing agent hydrogen peroxide, a hydrogen peroxide donor compound, an organic hydroperoxide or a percarboxylic acid and as the oxygen transfer catalyst a member of the class of the porphyrins, tetraaza[14]annulenes, phthalocyanines or tetraazacyclotetradecanes.

Abstract: Bis-substituted methanes and undissociated methylene salts of the formula (Am).sub.2 Z wherein Am is bis-(1,4 dimethylaminophenyl) and Z is CH.sub.2 or CH.sup.+ X.sup.- wherein X.sup.- is a suitable anion, all useful in the production of deeply colored cations of the formula (Am).sub.2 CH.sup.+. These deeply colored cations are in turn useful in making and using carbonless copy papers, as well as thermal copying papers for use with fax machines.

Abstract: A process for preparing di- or triarylmethane dyes by oxidation of di- or triarylmethanes in the presence of a diluent and of an oxygen transfer catalyst that contains a complexed heavy metal ion or of a catalyst based on molybdenic acid and vanadium compounds comprises using as oxidizing agent peroxomonosulfuric acid or a salt thereof.

Abstract: Synthetic procedures to tetraalkyls, tetraacids and dianhydrides substituted 1,1,1-triaryl-2,2,2-trifluoroethanes which comprises: (1) 1,1-bis(dialkylaryl)-1-aryl-2,2,2-trifluoroethane, (2) 1,1-bis(dicarboxyaryl)-1-aryl-2,2,2-trifluoroethane or (3) cyclic dianhydride or diamine of 1,1-bis(dialkylaryl)-1-aryl-2,2,2-trifluoroethanes. The synthesis of (1) is accomplished by the condensation reaction of an aryltrifluoromethyl ketone with a dialkylaryl compound. The synthesis of (2) is accomplished by oxidation of (1). The synthesis dianhydride of (3) is accomplished by the conversion of (2) to its corresponding cyclic dianhydride. The synthesis of the diamine is accomplished by the similar reaction of an aryltrifluoromethyl ketone with aniline or alkyl substituted or disubstituted anilines. Also, other derivatives of the above are formed by nucleophilic displacement reactions.

Abstract: The present invention provides novel dyes for staining proteins, particularly those in electrophoretic gels. The dyes of the invention are derivatives of Coomassie.RTM. dyes. The invention also provides quantitative and qualitative methods for detecting proteins by staining the proteins with a dye of the invention.

Abstract: 1. Dyestuffs for cyclic or straight polyfluoropolyoxyalkylenes, of general formula:Q[B--(A).sub.s ].sub.t (III)or[(Q).sub.s --B].sub.2 A (IV)where:Q=an organic group containing a chromophore group, free from free or salified sulphonic and/or carboxylic groups, and/or sulphon-amidic groups;A=a perfluorooxyalkylene chain, which is monovalent in formula (II) and divalent in formula (III);B=an organic at least divalent group;s, t=1 or 2, respectively.2. Compositions comprising cyclic or straight polyfluoropolyoxyalkylenes and at least a dyestuff of formula (III) or (IV) dissolved therein.

Abstract: A process for the preparation of triphenylmethane dye of the formula ##STR1## wherein R.sub.1 and R.sub.2 each denote hydrogen, C.sub.1 -C.sub.4 alkyl, benzyl or sulfobenzyl,R.sub.3 and R.sub.4 each denote hydrogen, C.sub.1 -C.sub.4 alkyl or sulfonic acidR.sub.5 denotes a phenyl, sulfophenyl, dialkylaminophenyl, C.sub.1 -C.sub.4 alkylphenyl, C.sub.1 -C.sub.4 alkyl-dialkylaminophenyl, halogenophenyl, naphthyl, sulfonaphthyl, disulfonaphthyl, or alkyldisulfonaphthyl by oxidation of the leuco compound of the corresponding triphenylmethane dye with manganese dioxide in the presence of an aqueous phosphoric acid at a temperature of about 20.degree. C. to about 100.degree. C.,by the addition of a base selected from the group consisting of ammonia, amines, aminoalcohols, metal hydroxides of Groups IA, IIA, IIIA and mixtures thereof in an amount sufficient to neutralize the aqueous solution,by filtration from the precipitate andby isolation of the triphenylmethane dye.

Abstract: The present invention provides novel dyes for staining protein, particularly those in elecrophoretic gels. The dyes of the invention are derivatives of Coomassie.RTM. dyes. The invention also provides quantitative and qualitative methods for detecting proteins which comprise staining the proteins with a dye of the invention.

Abstract: Process for the preparation of sulpho-free triphenylmethane dyestuffs of the formula ##STR1## in which R.sup.1 -R.sup.3 denote hydrogen, C.sub.1 -C.sub.6 -alkyl, preferably methyl, or halogen, preferably chlorine,Y denotes hydrogen or NX.sup.5 X.sup.6,X.sup.1 -X.sup.6 denote hydrogen, C.sub.1 -C.sub.6 -alkyl, preferably methyl, ethyl, benzyl or phenyl andZ.sup.