摘要:
Addition compound suitable as wetting and dispersing agent, obtainable from the reaction of A) polyepoxides with B) at least one primary polyoxyalkyleneamine C) at least one other aliphatic and/or araliphatic primary amine and D) at least one modified isocyanate.
摘要:
The present invention relates to a method for the production of addition compounds by converting an epoxide component (A) comprising at least two epoxide functions with at least one amine component (B) comprising a primary amine function in a continuous operation in a reactor, with the epoxide component (A) and the amine component (B) being continuously supplied in a molar ratio from 5:1 to 1:50 such that in the reactor a reaction mixture product develops comprising the epoxide component (A) and the amine component (B), as well as the conversion products from the epoxide component (A) and the amine component (B), which is drained from the reactor in the form of a product flow, with 10-100 mol % of the epoxy functions introduced into the reactor via the epoxide component (A) being converted in the reactor. The addition compounds yielded are preferably used as cross-linking and dispersing agents.
摘要:
Low-VOC mixture of at least partially salified copolymers of at least one ethylenically unsaturated, phenyl-group-containing monomer and at least one α,β-unsaturated monocarboxylic acid and/or at least one α,β-unsaturated dicarboxylic acid, of at least one water-soluble polyether, esterification products of at least one water-soluble polyether and an aliphatic dicarboxylic acid, and of a star polymer obtainable by esterifying a carboxylic acid containing at least 3 carboxyl groups with at least one water-soluble polyether, and use thereof as a wetting and dispersing agent, preferably for producing low-VOC pigment pastes or low-VOC paint systems.
摘要:
The present invention relates to a method for producing an additive composition which in particular contains specific urea urethanes. The additive composition is extremely suitable as a wetting agent and dispersant.
摘要:
Phosphoric acid derivatives, which are present as urea urethanes and contain a radical with an affinity for the binder in addition to at least one phosphoric acid ester group. Said phosphoric acid derivatives are especially suitable as wetting agents and dispersants. The derivatives are present according to the general formula (I) Y(—O—CO—NH—R1—NH—CO—X—Z1)g (I) wherein Y is represented by a branched or unbranched, saturated or unsaturated organic radical containing 1 to 1000 carbon atoms, q is represented by an integer from 1 to 10, R1 is represented by a saturated or unsaturated, branched or unbranched organic radical containing 6 to 20 carbon atoms, X is represented by NH and/or NZ2, Z2 is represented by a branched or unbranched, saturated or unsaturated organic radical, Z1 is represented by a branched or unbranched, saturated or unsaturated organic radical, which contains at least two carbon atoms and at least one phosphoric acid ester group.
摘要:
The present invention relates to a polymer mixture consisting of at least one comb copolymer I containing blocks consisting of special structural units and at least one copolymerisate II comprising polymerised, optionally substituted styrene and maleic anhydride units, the carboxyl groups of which are present at least partially as alkali metal, earth alkali metal or ammonium salts, and also to the use of these polymer mixtures as wetting and dispersing agents.
摘要:
Process for preparing a macromonomer, in which a starting compound H2C═CR1—C6H4-s(R4)s—R3—OH or H2C═CR2—CO—NH—R3—OH, where R1 and R2 are each H or a linear or branched alkyl radical having from 1 to 4 carbon atoms, R3 is a linear or branched alkylene, aralkylene radical which has from 1 to 20 carbon atoms and can contain one or more hydroxy groups and the radicals R4 are each, independently of one another, a linear or branched alkyl, aralkyl, alkoxy or aralkoxy radical having from 1 to 20 carbon atoms and s=0-4, is, after partial deprotonation, reacted with at least one hydroxy-functional oxirane compound in the presence of an inhibitor of free-radical polymerization with opening of the oxirane ring, where the molar ratio of the molar amounts used n(starting compound):n(oxirane compound) is in the range from 1:100 to 1:1.Macromonomers which can be obtained by the process, polymers which can be obtained therefrom and their use as additives in coating compositions, plastics and cosmetics.
摘要:
The present invention relates to phosphoric acid derivatives, which are present as urea urethanes and contain a radical with an affinity for the binder in addition to at least one phosphoric acid ester group. Said phosphoric acid derivatives are especially suitable as wetting agents and dispersants.
摘要:
A process for preparing a randomly branched copolymer, by reacting the components (a) 10-98.9 mol % of at least one acrylic ester of a straight-chain, branched or cyclic C1-C22-alkyl monoalcohol, (b) 0.1-10 mol % of at least one polyethylenically unsaturated monomer and (c) optionally one or more monoethylenically unsaturated monomers other than acrylic esters of straight-chain, branched or cyclic C1-C22-alkyl monoalcohols and other than compounds of the formula (I), in the presence of (d) 1-10 mol % of at least one compound of the formula (I) H3C—CRaRc—CH2—CRa—CH2 (I) where Ra, Rb are each independently aryl, CN or COOR1 where R1═H, alkyl, aryl or aralkyl, and Rc=alkyl, aryl or aralkyl, and is the presence of at least one initiator of free-radical polymerization in a free-radical polymerization, where the stated molar proportions of components (a), (b), (c) and (d) add up to 100 mol %, and where the molar proportion of component (b) does not exceed the molar proportion of component (d), Copolymers obtainable by the process and use thereof as levelling agents in coating substances.
摘要:
The invention relates to a copolymer which contains at least one polysiloxane group and the skeletal structure of which is an addition compound of at least one amine and at least one epoxide. The invention further relates to the use of said products as additives in coating agents, plastics, or homogeneous dispersions, e.g. as a dispersing agent for organic and inorganic pigments and fillers in oil-based compositions, or as a surface modifying agent.