摘要:
Alkoxyalkylaminotriazine trans-etherification products are obtained by reacting an alkoxyalkylaminotriazine of the general formula ##STR1## where X is hydrogen, alkyl, phenyl, alkylphenyl or ##STR2## A and B are hydrogen, alkyl, alkenyl or ##STR3## and R and R' are hydrogen or alkyl, with from 0.1 to 6 moles, per mole of alkoxyalkylaminotriazine, of a .beta.-hydroxyaldehyde of the general formula ##STR4## where R", R"' and R"" are identical or different and each is hydrogen or alkyl or R"' and R"" together with the .alpha.-carbon atom form a cyclopentane or cyclohexane ring, and R"' and/or R"" can also be hydroxyalkyl and R"" can also be phenyl, in the presence of an acidic catalyst, and removing the alcohol resulting from the trans-etherification. The alkoxyalkylaminotriazine trans-etherification products may be used in baking finishes and acid-hardening surface coatings.
摘要:
A process for the preparation of etherified or non-etherified aminoplast resins, wherein an aminotriazine of the general formula (I) ##STR1## where X is hydrogen, alkyl, phenyl, alkylphenyl or --NH.sub.2, is reacted with a .beta.-hydroxyaldehyde of the general formula (II) ##STR2## where R', R" and R'" are identical or different and each is hydrogen or alkyl, or R" and R'", together with the .alpha.-carbon atom, are a cyclopentane or cyclohexane ring, and R" and/or R'" can be hydroxyalkyl and R" can be phenyl, the reaction being carried out in the presence of not less than one alcohol and an acid catalyst for the preparation of etherified aminoplast resins and in the presence or absence of an acid catalyst for the preparation of non-etherified aminoplast resins. The aminoplast resins prepared according to the invention can be used as surface-coatings raw materials.
摘要:
Formaldehyde-free aqueous binders compriseA) a polymer containing from 5 to [lacuna]% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl groups can form an anhydride group, andB) an alkanolamine having at least two hydroxyl groups.
摘要:
Aqueous formulations suitable as sealing compounds or adhesives for ceramic tiles essentially containA) from 3 to 30% by weight of plastics particles which consist ofa) from 0.1 to 4% by weight of one or more mercaptosilanes of the general formula I ##STR1## where n is from 1 to 8, R.sup.1 and R.sup.2 are hydrogen and/or C.sub.1 -C.sub.4 -alkyl, R.sup.3, R.sup.4 and R.sup.5 are C.sub.1 -C.sub.6 -alkyl and/or C.sub.1 -C.sub.6 -alkoxy, with the proviso that one or more of the radicals R.sup.3 to R.sup.5 is alkoxy, andb) ethylenically unsaturated monomers capable of undergoing free radical polymerization, as the residual amount, the polymer having a glass transition temperature of from -60 to +40.degree. C.,B) from 40 to 90% by weight of an inorganic filler,C) an effective amount of an emulsifier,D) from 0 to 15% by weight external plasticizer andE) from 5 to 40% by weight of water.
摘要:
Polyurethane adhesive mixtures or polyurethane adhesive solutions contain(a) a polyurethane elastomer which advantageously has a mean molecular weight of not less than 30,000 and which is prepared by reacting(i) one or more essentially linear polyesterpolyols and(ii) one or more chain extenders with(iii) a mixture of 4,4'- and 2,4'-diphenylmethane diisocyanate isomers in a weight ratio of from 60:40 to 40:60 and(b) if appropriate, additives and/or organic solvents.
摘要:
A formaldehyde-free aqueous binder comprising A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl groups can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, is useful as binder for renewable raw materials in the form of fibers or chips to produce shaped articles.
摘要:
A formaldehyde-free binding, impregnating or coating composition comprisesA) a polymer constituted to from 2 to 100% by weight of an ethylenically unsaturated acid or anhydride as comonomer, andB) at least one polyol selected froma triazine of the formula ##STR1## where R.sup.1 to R.sup.3 are each independently of the others a radical X[(C.sub.m H.sub.2m O).sub.n H] or N[(C.sub.m H.sub.2m O).sub.n H].sub.2 where X is NH, O or S, m is from 2 to 5 and n is from 1 to 10,a triazinetrione of the formula ##STR2## where R.sup.4 to R.sup.6 are each independently of the others a radical [(C.sub.m H.sub.2m O).sub.n H] where m is from 2 to 5 and n is from 1 to 10,a benzene or cyclohexyl derivative of the formula ##STR3## where R.sup.7 to R.sup.9 are each independently of the others a radical [X(C.sub.m H.sub.2m O).sub.n H], a radical N[C.sub.m H.sub.2m O).sub.n H].sub.2, a radical [Y(C.sub.m H.sub.2m O).sub.n H] or a radical [(C.sub.m H.sub.2m O).sub.n H] where X is NH, O or S, Y is bivalent C.sub.1 -C.sub.6 -alkyl or acyl, m is from 2 to 5 and n is from 1 to 10, anda compound of the formula ##STR4## where R.sup.10 to R.sup.12 are each independently of the others a linear or branched, aliphatic or aromatic radical which has a total of from 1 to 12 carbon atoms and which may also contain ether groups and carries at least one hydroxyl group, and Z is N, PO.sub.3, BO.sub.3, PO.sub.4 or C--R.sup.13, where R.sup.13 is a linear or branched, substituted or unsubstituted alkyl or aryl radical having up to 10 carbon atoms.
摘要翻译:无甲醛结合,浸渍或涂料组合物包含A)构成2至100重量%的作为共聚单体的烯属不饱和酸或酸酐的聚合物,和B)至少一种选自下式的三嗪的多元醇 >其中R1至R3各自独立地为基团X [(CmH2mO)nH]或N [(CmH2mO)nH] 2,其中X为NH,O或S,m为2至5,n为1 式(10)表示的化合物,其中R 4至R 6各自独立地为基团[(C m H 2 m O)n H],其中m为2至5且n为1至10的三嗪三酮,苯或环己基衍生物 式[X(C m H 2 m O)n H],基团N [C m H 2 m O] n H] 2,基团[Y(C m H 2 m O)n H]或基团[(C m H 2 m O)n H] ,O或S中,Y为二价C 1 -C 6 - 烷基或酰基,m为2至5,n为1至10,并且其中R 10至R 12各自独立地为其中的化合物 直链或支链,脂族或 总共具有1至12个碳原子并且还可以含有醚基并带有至少一个羟基的芳基,Z是N,PO 3,BO 3,PO 4或C-R 13,其中R 13是直链或支链 具有至多10个碳原子的取代或未取代的烷基或芳基。
摘要:
Aqueous dispersions of polyurethanes consisting of(a) organic polyisocyanates,(b) polyesterpolyols having a molecular weight of from 500 to 5,000,(c) organic hydroxy compounds having a molecular weight of from 62 to 400 and two terminal groups which are reactive to isocyanate groups, as chain extenders, and(d) compounds containing ionic groups or groups which can be converted to ionic groups and one or more isocyanate groups or a hydroxyl or amino group which is reactive to isocyanate groups,which contain from 0.05 to 2 meq of ionic groups incorporated into the polyurethane via (d) per g of polyurethane are particularly suitable for adhesives when the chain extenders (c) are incorporated in an amount of from 1.5 to 8 moles per mole of polyols, and a minor amount of (a) can be replaced with monoisocyanates, and a minor amount of (b) with polyetherpolyols.
摘要:
A process for dissolving a binder off a fiber web bonded therewith includes treating the fiber web, which is bonded with a polymeric binder having carboxylate groups crosslinked via alkaline earth metal cations, with an aqueous solution of an alkali metal salt to form a sparingly soluble salt or complex between the anion of the alkali metal salt and the alkaline earth metal cations, and then removing the fiber freed of the binder.