Abstract:
The present invention is directed to cationic nanoparticles, methods to make them, and the use of compositions containing said nanoparticles in personal care compositions or formulations. The nanoparticles are useful in personal care applications and impart antimicrobial properties to home and personal care products containing them. These cationic nanoparticles also contribute useful conditioning properties to hair-care and skin-care products.
Abstract:
The present invention discloses the use of functionalized particles as electrophoretic displaying particles, wherein the functionalized particles are SiO2, Al2O3 or mixed SiO2 and Al2O3 particles comprising, covalently bound to an oxygen atom on the surface, a radical of formula (1), wherein R1 and R2 are independently of each other hydrogen, particle surface-O—, or a substituent, n is 1, 2, 3, 4, 5, 6, 7 or 8, B is the direct bond or a bridge member, and D is the residue of an organic chromophore.
Abstract translation:本发明公开了使用官能化颗粒作为电泳显示颗粒,其中官能化颗粒是SiO 2,Al 2 O 3或混合SiO 2和Al 2 O 3颗粒,其包含与表面上的氧原子共价结合的式(1)基团,其中R 1 和R2彼此独立地为氢,颗粒表面-O-或取代基,n为1,2,3,4,5,6,7或8,B为直接键或桥构件,D为 有机发色团的残留物。
Abstract:
The present invention relates to a process for the production of porous inorganic materials or a matrix material containing nanoparticles with high uniformity of thickness and/or high effective surface area and to the materials obtainable by this process. By the abovementioned process materials with a defined thickness in the region of ±10%, preferably ±5%, of the average thickness are available.
Abstract:
The present invention relates to a composition containing modified block copolymer dispersants and dispersible inorganic or organic pigments. The block copolymers are modified with a salt forming group. The pigment composition is useful for preparing coating compositions, prints, images, inks or lacquers and other disperse systems.
Abstract:
The invention relates to comb polymers and macromonomers based on acrylates prepared by the ATRP (Atom Transfer Radical Polymerization) method. These polymers have an improved capability of dispersing pigments in the given solvent. The invention also relates to compositions comprising the comb polymers and macromonomers dispersible inorganic or organic pigment particles. The compositions are used by applying them to any suitable substrate, for example to metal, wood plastic or ceramic materials.
Abstract:
The present invention relates to a polymerizable composition, comprising a) at least one compound of formula (I) (RG)—A—(Stab) (I), wherein (Stab) is a light stabilizer radical selected from the group consisting of sterically hindered amines, hydroxyphenyl-s-triazines, hydroxyphenyl-benzotriazols and o-hydroxy-benzophenones; A is a spacer group or a direct bond; and (RG) is a group containing at least one ethylenically unsaturated functional group; and either b1) a compound of formula (II) Y—X (II), wherein X represents a group having at least one carbon atom and is such that the free radical derived from X is capable of initiating polymerization and Y represents a group being such that the free radical Y· derived from it forms a stable free radical; or b2) a stable free radical Y· and a free radical source from which a radical is formed capable of initiating polymerization, or b3) a compound of formula (III) and a catalytically effective amount of an oxidizable transition metal complex catalyst, wherein p represents a number greater than zero and defines the number of initiator fragments; q represents a number greater than zero; [In] represents a radically transferable atom or group capable of initiating polymerization and -[Hal] represents a leaving group; and optionally c) one or more ethylenically unsaturated monomers or oligomers different from those of formula (I). Further subjects of the invention are a polymerization process, the polymers, copolymers oligomers and cooligomers obtainable by this process and the use of the polymers, copolymers oligomers and cooligomers as heat or light stabilizers.
Abstract:
The invention relates to penta- and hexacoordinated ruthenium and osmium carbene catalysts, in which a sulfur, oxygen or nitrogen atom is attached to the carbene group which is coordinated with the central ruthenium or osmium atom, to their preparation and to their use for synthesizing polymers, for ring-closing metathesis of olefins and for isomerizing olefins.
Abstract:
Composition comprising (a) catalytic amounts of a one-component catalyst for metathesis polymerization and (b) at least one polymer with strained cycloalkenylene radicals bonded in the polymer backbone, alone or as a mixture with strained cycloolefins. The composition can be polymerized thermally or photochemically by metathesis polymerization and is suitable for the production of shaped articles, coatings and relief images. The catalyst is selected from Ruthenium and Osmium compounds.
Abstract:
The present invention provides organic-inorganic composite particles having an average diameter of 60 to 12,000 nm, wherein the organic-inorganic composite particles are obtainable by reacting particles A, which are particles carrying at least one functional group Ra, with particles B, which are particles carrying at least one functional group Rb, under formation of a covalent linkage between particles A and particles B. The present invention also provides compositions comprising these particles and substrates coated with these compositions.
Abstract:
Cationic 2,2,6,6-tetraalkylpiperidinyl alkoxyamines of, for example, formula (1a) and (1b) are useful as polymerization initiators/regulators in a controlled stable free radical polymerization process to produce intercalated and/or exfoliated nanoparticles from natural or synthetic clays. Compositions comprising improved nanocomposites produced by this process are useful as, for example, coatings, sealants, caulks, adhesives and plastic additives wherein Q1 is a direct bond or a —CH2— group T1, T2, T3 and T4 are independently methyl or ethyl with the proviso that at least one is ethyl; T7 and T8 are hydrogen or methyl; T5 and T6 are hydrogen or T5 and T6 together are a group ═O, ═NOH, ═NO-T9 or T5 is hydrogen and T6 is —O-T9 or —NR9-T9 T9 is hydrogen, R9 or —C(O)—R9; R9 is hydrogen, C1-C18alkyl, C3-C18alkenyl, C3-C18alkynyl, phenyl or C7-C9phenylalkyl unsubstituted or substituted by hydroxy, halogen or C1-C4alkoxy; K1 and K2 are hydrogen, C1-C18alkyl, C5-C12cycloalkyl, phenyl or C7-C9phenylalkyl and K3 is a group containing selected amine containing salts.