Abstract:
The invention relates to a reference electrode for chemical sensors based on ion-selective field-effect transistors (CHEMFETs) in an electrolyte/insulator/semiconductor system. The reference electrode is essentially composed of a polyglutamate-coated insulator/semiconductor substrate or of a polyglutamate-coated phthalocyaninato-polysiloxane polymer film applied to an insulator/semiconductor substrate.
Abstract:
Solid dispersions of thermoplastic polymers and a crosslinked water-insoluble polymer, which solid dispersions are suitable as filter aids, wherein the solid dispersions comprise 20 to 95% by weight of at least one thermoplastic polymer (component A) and 5 to 80% by weight of at least one crosslinked water-insoluble polymer selected from the group consisting of homopolymers of N-vinylformamide, N-vinylcaprolactam, N-vinylpiperidone, N-vinylpyridines, N-vinylimidazoles, styrene monomers, acrylates and methacrylates and also copolymers of basic N-vinyl compounds, styrene monomers, acrylates and methacrylates (component B).
Abstract:
The present invention relates to a mono- and/or polyallyl-polyether-urethane, to water-soluble or water-dispersible polymers which comprise such a polyether-urethane in copolymerized form, and to cosmetic or pharmaceutical compositions which comprise a water-soluble or water-dispersible polymer based on a mono- and/or polyallyl-polyether-urethane.
Abstract:
The present invention relates to the use of, if appropriate present in the form of an aqueous dispersion, polymers of ethylenically unsaturated anionic monomers for modifying the rheology of aqueous, alcoholic or aqueous/alcoholic cosmetic or dermatological compositions. The polymers are obtainable by free-radical emulsion copolymerization of water-soluble inorganic monomers in aqueous phase in the presence of, in each case, at least one stabilizing polymer of groups a) and b). The emulsion polymers are exceptionally suitable for thickening cosmetic or dermatological preparations based either on water or on alcohols.
Abstract:
Ampholytic copolymers which contain a molar excess of anionogenic and/or anionic groups, polyelectrolyte complexes which contain such an ampholytic copolymer, cosmetic and pharmaceutical compositions which contain at least one such copolymer or polyelectrolyte complex and the use of these copolymers and polyelectrolyte complexes are described.
Abstract:
The use of copolymers containing a) from 60% to 99% by weight of at least one vinyllactam or N-vinylamine selected from the group consisting of N-vinylpyrrolidone, N-vinylpiperidone, N-vinylcaprolactam or N-vinylformamide, and b) from 1% to 40% by weight of at least one monomer of the general formula where b1) R1, R2, R3 each denote oxygen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl and R4 denotes the general formula II X denotes oxygen, NH, NR (where R=R1) R5 denotes C1-C6-alkyl, phenyl, A denotes OH, NH2, NR2 (wheret R2=R1) R6, R7 R8 each denote hydrogen, C1-C4-alkyl n denotes an integer between 1 and 4 B, F each denote C, N D denotes C1-C4-alkyl, O, NH p denotes an integer between 0 and 15 E denotes N, O l, m each denote 0 or 1 R9, R10, R11 each denote hydrogen, C1-C4-alkyl, C6-C10-aryl, C7-C10-alkylaryl and s, q each denote an integer between 0 and 2. For E=nitrogen the s+q sum is equal to 1 or 2. For E=oxygen the s+q sum is equal to zero. For E=nitrogen and s+q=2 the counterions needed for charge neutrality are selected from elements of groups 1, 2 or 13 with the proviso that there is one element of group 1 per R4 radical when a group 1 element is selected, one element of group 2 per two R4 radicals when a group 2 element is selected and one element of group 13 per three R4 radicals when a group 13 element is selected. b2) R1, R2, R3 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl or a radical of the general formula III R4 denotes a radical of the general formula III R6, R7 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl X denotes O, NH, NR (where R=R6) R5 denotes C1-C10-alkyl, C6-C10-aryl, C7-C14-alkylaryl n denotes an integer between 0 and 15 Y denotes O, N R6, R7 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl p, q each denote an integer between 0 and 2 with the proviso that at least one of R1, R2, R3 and R4 but not more than two denote the general formula III. b3) R1, R2, R3 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl R4 denotes a radical of the general formula IV R5 denotes C1-C8-alkyl n denotes an integer between 0 and 4 m, l each denote 0 or 1 R6 denotes C1-C4-alkyl R7 denotes hydrogen, C1-C4-alkyl and X N(R1)(R2) or halogen. b4) R1, R2, R3 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl R4 denotes a radical of the general formula V X, Y each denote O, N, S R5, R6 each denote C1-C4-alkyl, C1-C4-alkenyl l, m each denote an integer between 0 and 4 n denotes an integer between 0 and 2 R7 denotes hydrogen, C1-C4-alkyl Z denotes sulfate, hydrogensulfate, chloride, bromide, iodide, phosphate, hydrogenphosphate, dihydrogenphosphate p denotes 0, ⅓, ½, 1 and q denotes an integer between 0 and 3. b5) R1, R2, R3 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl, or a radical of the general formula VI R4 denotes a radical of the general formula VI R5, R7, R8, R11 each denote C1-C6-alkyl, C6-aryl, C7-C10-alkylaryl R6, R12 each denote hydrogen, C1-C4-alkyl, C6-aryl R9, R10 each denote hydrogen, C1-C4-alkyl, C6-aryl, C7-C10-alkylaryl X denotes O E, F, Y, D each denote O, N, S M denotes an element of group 1, 2 or 13 of the periodic table a, k, l, s each denote 0 or 1 m, n, r, w each denote an integer between 0 and 10 o denotes an integer between 0 and 3 p denotes an integer between 0 and 20 q, t, u, v, z each denote an integer between 0 and 2 x denotes 0, ⅓, ½, 1 and y an integer between 1 and 3 with the proviso that at least one of R1, R2, R3 and R4 but not more than 2 denote the general formula VI, in conjunction with c) optionally one or more hydrophilic polymers C or mixtures thereof d) and optionally also further polymers D and mixtures thereof for producing membranes.
Abstract:
The present invention relates to a process for preparing dye-comprising aqueous polymer dispersions by free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers in the presence of free-radical initiators, in which at least some of the monomers are employed in the form of an oil-in-water emulsion E1 whose disperse phase comprises at least one oil-soluble dye, wherein the disperse phase of E1 is formed essentially of dye-comprising monomer droplets having a diameter
Abstract:
Process for the preparation of polymers by free-radical polymerization from (a) ethylenically unsaturated monomers and (b) polyalkylene oxide-containing silicone derivatives, where the polymerization is carried out in the presence of alkanethiols having a carbon chain length of from C 13 to C 22.
Abstract translation:用于通过(a)烯属不饱和单体和(b)含聚环氧烷烃的聚硅氧烷衍生物的自由基聚合制备聚合物的方法,其中聚合在碳链长度为C 13的链烷醇存在下进行, C 22。
Abstract:
Disclosed are graft copolymers which are obtained by means of radical graft copolymerization of a) N-vinylformamide, b) one or several copolymerizable monomers of general formula (I), in which n=0.1 and R1 and R2 independently represent H, C1-C4 alkyl, CN, COOH, and/or one or several unsaturated sulphonic acids and/or one or several unsaturated phosphonic acids on a polymeric graft base c) of general formula (II), in which R═H, —CH3, and n=5-50 000.
Abstract:
A process for preparing aqueous polymer dispersions comprises first of all subjecting ethylenically unsaturated monomers to free-radical aqueous emulsion polymerization to prepare an aqueous dispersion of a polymer 1 having a glass transition temperature Tg1, then dissolving further, comparatively hard monomers in the dispersed particles of the polymer 1, and subsequently carrying out free-radical polymerization of said monomers dissolved in said particles.