摘要:
The aqueous ready-to-apply composition for permanent waving of hair has a pH of 4 to 8.5 and from 3 to 28% by weight of at least one N-alkylmercaptoacetamide of formula (I): wherein R represents a straight-chain alkyl group having from 3 to 6 carbon atoms or a straight-chain hydroxyalkyl group having from 3 to 6 carbon atoms; or a salt thereof; and at least one standard cosmetic additive ingredient, such as thickeners, wetting agents and emulsifiers, perfume oils, conditioners and buffer substances. The ready-to-apply composition can be made by mixing two or more components, one of which contains the N-alkylmercaptoacetamide. A method for permanent waving of hair using the ready-to-apply composition is also described. A process for making the N-alkylmercapto-acetamides includes reacting a suitable amine with methylthioglycolate under a protective gas atmosphere at temperatures that are not greater than 30° C.
摘要:
The composition for permanent shaping of hair contains, as keratin-reducing agent, a compound of the formula (I): ##STR1## or a salt thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent, independently of each other, H, a straight or branched chain alkyl or hydroxy alkyl group, with 1 to 3 carbon atoms or a carboxyl group, with the proviso that at least one of the R.sub.1, R.sub.2, R.sub.3 and R.sub.4 groups is not H, n and m are whole numbers from 1 to 3 and X is a bivalent group --O--, --CR.sub.5 R.sub.6 -- or --NR.sub.7 --, in which R.sub.5, R.sub.6 and R.sub.7 are each, independently of each other, H or straight chain or branched chain alkyl groups or hydroxyalkyl groups with 1 to 3 carbon atoms or carboxyl groups. New mercaptoacetamide compounds and methods of making them are also described. The composition for permanent shaping provides a safe and uniform shaping of hair without allergic and sensitizing reactions; it has a skin and hair safe pH range of 6.5 to 9.5.
摘要:
The aqueous composition for permanent hair-styling has a pH of from 6.5 to 9.5 and contains from 3 to 28% by weight of a compound of formula I, ##STR1## wherein A represents --CH.sub.2 --, --C.dbd.O--, --S--, --O-- and --NR-- and R is an alkyl group having from 1 to 6 carbon atoms or a hydroxyalkyl group having from 1 to 6 carbon atoms, m is an integer from 1 to 3 and n is an integer from 0 to 3, with the proviso that n=0 only when A is methylene; water and one or more cosmetic additive ingredient selected from the group consisting of thickening agents, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, opacifiers, alcohols, sugars, solubilizers, stabilizers, buffer substances, perfume oils, colorants, hair conditioning and hair treatment ingredients.
摘要:
The present invention relates to a composition and method for permanently shaping hair, in which an N,N-disubstituted mercaptoacetamide of the formula I: or a salt thereof, wherein R1 and R2 are each independently selected from the group consisting of straight-chain alkyl groups having 1 to 6 carbon atoms, branched-chain alkyl groups having 1 to 6 carbon atoms, monohydroxyalkyl groups having 1 to 6 carbon atoms, polyhydroxyalkyl groups having 1 to 6 carbon atoms and carboxyalkyl groups having 1 to 6 carbon atoms, is employed as keratin reducing agent. A process for making these mercaptoacetamides is also described as well as a novel mercaptoacetamide, N-ethyl-2′-hydroxyethyl-mercaptoacetamide. The mercaptoacetamides provide gentle and uniform shaping of hair in a pH range of 4.5 to 9.5 and do not cause allergic or sensitizing reactions.
摘要:
The subject of the invention is an agent for the permanent shaping of hair, characterized in that it contains as active keratin-reducing substance a compound in accordance with the general formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 stand for H, carboxy or a straight- or branched-chain alkyl radical, monohydroxyalkyl radical or polyhydroxyalkyl radical with 1 to 6 carbon atoms respectively, on the condition thatnot all radicals R.sub.1 to R.sub.3 stand for H at the same time;if R.sub.1 and R.sub.2 stand for H, then R.sub.3 is carboxy or a branched alkyl, branched monohydroxyalkyl or branched polyhydroxyalkyl radical with 1 to 6 carbon atoms;if none of the radicals R.sub.1 to R.sub.2 stand for carboxy or have a branched alkyl, branched monohydroxyalkyl or branched polyhydroxyalkyl radical with 1 to 6 carbon atoms, then at least two of the radicals R.sub.1, R.sub.2 or R.sub.3 stand for a straight-chain alkyl, monohydroxyalkyl or polyhydroxyalkyl radical with 1 to 6 carbon atoms andif one of the radicals is carboxy, then the other two radicals are not carboxy at the same time.The agent allows for gentle, even shaping of the hair in a way that protects the skin and the hair, at a pH range of 6.5 to 9.5, without causing allergic and sensitizing reactions.
摘要:
The aqueous permanent shaping composition has a pH of 6.5 to 9.5 and contains water, from 3 to 28 percent by weight of one or more mercaptoethylamines of the formula IHS--CH.sub.2 --CH.sub.2 --NR.sub.1 R.sub.2 (I),wherein R.sub.1 represents hydrogen, a straight or branched chain alkyl, hydroxyalkyl or polyhydroxyalkyl group having 1 to 6 carbon atoms; R.sub.2 represents a cyclohexyl group, a furfuryl group, a straight or branched chain hydroxyalkyl group having 1 to 6 carbon atoms or a polyhydroxyalkyl group having 1 to 6 carbon atoms; or wherein R.sub.1 and R.sub.2 together with the nitrogen atom form a five or six membered ring containing, or not containing, another heteroatom and the five or six membered ring is substituted with a hydroxyl group, a carboxyl group or with one or two alkyl, hydroxyalkyl, polyhydroxyalkyl or alkoxycarboxyl groups having from 1 to 4 carbon atoms; or at least one physiologically compatible salt thereof; and one or more additive ingredients, which can be a surfactant or emulsifier, alcohol, sugar, solvating agent, stabilizer, buffer substance, perfume oil, dyestuff, hair conditioning or care ingredient.
摘要:
A forming disk apparatus for processing foodstuff product that includes a plurality of holes that open into a portion of an axial side surface of the forming disk. A depression is also provided eccentrically in the side surface of the forming disk and positioned concentrically relative to the forming disk. A cutting apparatus is arranged to bear against an axial side surface of the forming disk such that the cutting apparatus is movable relative to the forming disk apparatus.
摘要:
A forming disk apparatus for processing foodstuff product that includes a plurality of holes that open into a portion of an axial side surface of the forming disk. A depression is also provided eccentrically in the side surface of the forming disk and positioned concentrically relative to the forming disk. A cutting apparatus is arranged to bear against an axial side surface of the forming disk such that the cutting apparatus is movable relative to the forming disk apparatus.
摘要:
In the case of a cutting assembly having at least one perforated or cutting plate which has through channels and having at least one cutting knife which is assigned to the perforated or cutting plate, the cutting knife being connected with a rotatable shaft in a rotationally fixed manner, it is provided that the perforated or cutting plate exhibits through channels at its centre and distributed over its entire extent.Meat products or other products which must have a constant consistency over their entire extent with regard to the product mass can be produced with a cutting assembly of this type.