Abstract: The novel hair dye compositions containing a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be identical or different, are hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, alkoxyalkyl, hydroxyalkoxyalkyl aminoalkyl and dialkylaminoalkyl, each alkyl group and each alkoxy group having from about 1 to about 6 carbons and R.sub.5 is hydrogen or alkyl containing from about 1 to about 6 carbon atoms are disclosed. More specifically, the present invention concerns the inclusion of such compounds of formula I in hair dye compositions as direct dyes, and especially the novel compound 4-(2-hydroxyethylamino)-3-nitrobenzamide. The compounds, some of which are novel, provide a yellow dye base for the hair dyeing compositions.

Abstract: 4-nitroso anilines and cosmetically acceptable salts thereof are employed as direct dyes. Compositions for dyeing keratin fibers and containing said 4-nitroso anilines and an alkalizing agent are also disclosed.

Abstract: The novel hair dye compositions containing a compound of the formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be identical or different, are hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, alkoxyalkyl, hydroxyalkoxyalkyl aminoalkyl and dialkylaminoalkyl, each alkyl group and each alkoxy group having from about 1 to about 6 carbons and R.sub.5 is hydrogen or alkyl containing from about 1 to about 6 carbon atoms are disclosed. More specifically, the present invention concerns the inclusion of such compounds of formula I in hair dye compositions as direct dyes, and especially the novel compound 4-(2-hydroxyethylamino)-3-nitrobenzamide. The compounds, some of which are novel, provide a yellow dye base for the hair dyeing compositions.

Abstract: 4-nitroso anilines and cosmetically acceptable salts thereof are employed as direct dyes. Compositions for dyeing keratin fibers and containing said 4-nitroso anilines and an alkalizing agent are also disclosed.

Abstract: Substituted 3-aryl amino-indoline-2-ones, produced by the reaction of certain isatins and amines are among a group of compounds useful as hair colorants. The hair itself appears to function as a dye-formation promoter, so that no oxidative reagents are needed.

Abstract: The invention encompasses the use of nitroaminobenzaldehydes and nitroaminobenzylimines as hair dyeing agents.

Abstract: A thermally insulative fire block sheet having an elastomeric layer is provided which has a surface flammability flame spread index of zero at 20 minutes of exposure in accordance with ASTM E-162 and which is capable, in a thickness of 1/16 inch, of blocking a flame of 1900.degree. F. for more than an hour. The sheet comprises at least two layers. One layer, facing the direction of the expected flame, is a silicone foam rubber comprising the reaction product of a vinylterminated polysiloxane containing --Si(CH.sub.3).sub.2 O-- units and an organohydrogensiloxane polymer containing Si(H)(CH.sub.3)O-- units. The silicone foam rubber also contains alumina trihydrate. The other layer is an adherent flame resistant support layer for said foam, preferably a glass cloth layer.

Abstract: Novel sulfur containing nitroamino benzene dyes of formula: ##STR1## and salts thereof wherein (a) R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of alkyl, hydroxyalkyl, polyhydroxyalky, aminoalkyl, monoalkylamioalkyl and dialkylaminoalkyl,wherein(b) n is 0, 1 or 2, and wherein(c) the group ##STR2## occupies a position that is meta or para to the group-NHR.sub.1 ; a process for synthesizing these compounds and their use as direct dyeing hair dyes are being disclosed.