摘要:
Binders for moisture-hardening coating or sealing compositions contain modified copolymers having a weight average molecular weight of from 1,500 to 75,000 determined by gel permeation chromatography of olefinically unsaturated compounds containing chemically incorporated moieties which are addition-reactive to amino wherein the modified copolymers contain both(i) intramolecular carboxylic anhydride moieties and(ii) olefinically unsaturated (meth)acrylate moieties in chemically bound form as the moieties which are addition-reactive to amino, with the anhydride equivalent weight being in the range from 392 to 9,800 and the (meth)acrylate equivalent weight in the range from 284 to 7,100.
摘要:
Copolymers useful in binders for two-component coating compounds or sealing compounds are copolymers having a weight average molecular weight, determined by the gel permeation chromatography method, of from 1500 to 75,000 of olefinically unsaturated compounds containing chemically incorporated moieties capable of undergoing an addition reaction with hydroxyls wherein the copolymers contain, as hydroxyl reactive groups, both(i) from 0.3 to 7.0% by weight of free isocyanate groups and(ii) from 1 to 25% by weight of acid anhydride groups, calculated as C.sub.4 H.sub.2 O.sub.3,in a chemically bound form.
摘要翻译:用于双组分涂料化合物或密封化合物的粘合剂中的共聚物是具有通过凝胶渗透色谱法测定的重均分子量为1500至75,000的含有化学引入的部分的烯属不饱和化合物的共聚物,其能够经历与 羟基,其中共聚物含有(i)0.3至7.0重量%的游离异氰酸酯基团和(ii)按化学键合计算为1至25重量%的以C 4 H 2 O 3计算的酸酐基团,作为羟基反应性基团 形成。
摘要:
The present invention relates to copolymers having a weight average molecular weight (M.sub.w) of 1500 to 75,000, prepared from olefinically unsaturated compounds and containing 0.1 to 4.5% by weight of primary amino groups in the form of structural units corresponding to formula I ##STR1## wherein Q is a saturated aliphatic-cycloaliphatic hydrocarbon radical of the type obtained by removing the amino groups from an aliphatic-cycloaliphatic diprimary diamine containing an amino group attached to a primary carbon atom and an amino group attached to a secondary or tertiary carbon atom.The present invention also relates to a process for the production of these copolymers.
摘要:
The present invention relates to moisture-hardening binder compositions containingA) 30 to 99 parts by weight of a component based on at least one copolymer prepared from olefinically unsaturated compounds having a weight average molecular weight of about 1,500 to 75,000 and containing chemically incorporated groups which are reactive with amino groups in an addition reaction andB) 1 to 70 parts by weight of a polyamine component based on at least one organic polyamine containing blocked amino groups.characterized in that the copolymers of component A) contain both intramolecular carboxylic anhydride groups and also carbonate groups in chemically bound form, the anhydride equivalent weight of the copolymers being 327 to 9,800 and the carbonate equivalent weight of the copolymers being 465 to 18,600, component A) containing a total of 0.2 to 8 anhydride and carbonate groups for each blocked amino group present in component B).
摘要:
Moisture hardening binders for lacquer and coating compositions are prepared by mixing with exclusion of moisture, and with or without reacting:(A) 30 to 99 parts by weight of at least one compound containing at least two intramolecular carboxylic acid anhydride moieties with(B) 1 to 70 parts by weight of organic compounds containing blocked amino groups from which free primary aminos, secondary aminos or both are formed under the influence of moisture characterized in that compounds (B) are organic compounds containing hexahydropyrimidine or tetrahydroimidazole moieties, with or without other blocked amino moieties in addition to the hexahydropyrimidine or tetrahydroimidazole moieties, the quantitative proportions of the individual components (A) and (B) being so chosen, taking into account any spontaneous addition reaction which may take place between components (A) and (B) in the absence of moisture, such that the resulting composition contains from 0.25 to 50 anhydride moieties for each hexahydropyrimidine or tetrahydroimidazole moiety.
摘要:
The present invention relates to polyurethane-polyacrylate hybrid dispersions comprising A) 20 to 99% by weight, based on resin solids, of a polyurethane wherein i) the polyurethane is rendered hydrophilic by ionic and/or nonionic hydrophilic groups and ii) the polyisocyanate component used to prepare the polyurethane contains an aliphatic or cycloaliphatic polyisocyanate containing allophanate groups, and B) 1 to 80% by weight, based on resin solids) of a polyacrylate polymer, wherein the sum of components A and B is 100%, based on the total weight of A) and B). The present invention also relates to the use of these hybrid dispersions for coating substrates, in particular wood.
摘要:
The present invention relates to binder compositions containingA) 10 to 99 parts by weight of a copolymer component containing at least one copolymer prepared from olefinically unsaturated compositions having a weight average molecular weight of 1,500 to 75,000 and having in chemically bound form both(i) 1 to 30% by weight of cyclic carboxylic anhydride groups (calculated as C.sub.4 H.sub.2 O.sub.3) and(ii) 1 to 29% by weight of epoxide groups (calculated as C.sub.2 H.sub.3 O) andB) 1 to 90 parts by weight of a hydroxyl component containing at least one organic polyol having at least two hydroxyl groups per molecule,provided that for every anhydride group of component A) there are 0.1 to 10 hydroxyl groups of component B).The present invention also relates to the use of these binder compositions as binders for heat-curing coating compositions or sealing compositions optionally containing paint auxiliaries and additives or as binders for room-temperature-curing sealing or coating compositions containing catalysts and, optionally, other paint auxiliaries and additives.
摘要翻译:本发明涉及粘合剂组合物,其包含A)10至99重量份的共聚物组分,所述共聚物组分含有至少一种由烯属不饱和组合物制备的共聚物,其重均分子量为1,500至75,000,并具有化学键合形式,(i) 1至30重量%的环状羧酸酐基团(以C 4 H 2 O 3计)和(ii)1至29重量%的环氧基团(以C 2 H 3 O计算)和B)1至90重量份的至少含有至少 一个每分子具有至少两个羟基的有机多元醇,条件是对于组分A)的每个酸酐基团,组分B)中都有0.1至10个羟基。 本发明还涉及这些粘合剂组合物作为粘合剂用于热固化涂料组合物或任选地含有涂料助剂和添加剂的密封组合物或用作室温固化密封剂的粘合剂或含有催化剂和任选的其它涂料的涂料组合物的粘合剂 助剂和助剂。
摘要:
Binder compositions comprising(A) copolymers having a molecular weight of from 1500 to 75000 of maleic acid anhydride with other selected olefinically unsaturated monomers,(B) organic polyamines with aldimine- and/or ketimine-blocked amino groups and, optionally, reaction products containing amide groups of (i) copolymers (A) with (ii) polyamines having free and blocked amino groups,a process for the production of these compositions by mixing components (A) and (B) and optionally partially blocked polyamines which react with a part of component (A) under formation of component (C) as well as the use of these binder compositions as binder in lacquers, coating compositions or sealing compounds.
摘要:
The present invention relates to hydroxy functional polyacrylate copolymers having a molecular weight (M.sub.n) of about 2000 to 30,000 and containinga) about 1 to 70% by weight of structural units corresponding to the formula ##STR1## The present invention also relates to a process for the preparation of these hydroxy functional copolymers by reacting the corresponding anhydride functional copolymers with amino alcohols. Finally, the present invention also relates to the use of these hydroxy functional copolymers as binder components in combination with polyisocyanates for the production of polyurethane lacquers, coatings, sealants, adhesives or printing inks.
摘要:
Compositions useful as a binder in lacquers and coating compositions and which are curable by moisture contain:(A) from 30 to 99 parts by weight of at least one copolymer of olefinically unsaturated compounds having a weight average molecular weight of from 1500 to 75,000 and containing chemically incorporated moieties capable of undergoing an addition reaction with amino groups, and(B) from 1 to 70 parts by weight of at least one organic polyamine containing blocked amino groups,wherein (i) the copolymers of component (A) contain both intramolecular carboxylic acid anhydride moieties and epoxide moieties in a chemically bound form, with the anhydride equivalent weight of the copolymers being from 393 to 9,800 and the epoxide equivalent weight of the copolymers from 568 to 14,200, and (ii) the binder composition contains from 0.2 to 8 anhydride and epoxide moieties for each blocked amino group.