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    • 4. 发明授权
    • Process for the production of self-cross-linking lacquers
    • 自交联漆生产工艺
    • US4048130A
    • 1977-09-13
    • US557061
    • 1975-03-10
    • Marcel BrunoldKlaus HeringPaul WichtChristian VonlanthenJurg KisligTheodor Volker
    • Marcel BrunoldKlaus HeringPaul WichtChristian VonlanthenJurg KisligTheodor Volker
    • C08F2/22C08F246/00C08L61/20C09D133/06C09D157/00C08L35/02
    • C09D133/064C08F2/22C08F246/00C09D157/00C08L61/20
    • The process for preparing a lacquer utilizing an aqueous dispersion, the lacquer being pigmented or non-pigmented, being self-cross linking upon heat treatment and containing a binder consisting essentially of the following monomers:A. 30 to 70 parts by weight of at least one monomer whose homopolymer has a theoretical glass temperature of less than 10.degree. C., based on the total weight of the binder,B. 30 to 70 parts by weight of at least one monomer whose homopolymer has a theoretical glass temperature of more than 30.degree. C., based upon the total weight of the binder,C. 0.5 and 5 parts by weight of at least one polymerizable acid and/or salt thereof, based upon the total weight of the binder,D. 2 to 35 parts by weight of at least one reactive monomer, based upon the total weight of the binder, andE. 0.5 to 35 parts by weight of at least one alkali or ammonium salt of a polymerizable sulfonic acid compound, based upon the total weight of the binder.The process involves conducting the polymerization in an aqueous dispersion in a reaction vessel at a preselected temperature between 15.degree. and 30.degree. C. and at a starting pH of 3 to 4 in the presence of a redox system consisting of 0.005 to 0.5 percent by weight of at least one alkali and/or ammonium persulfate, based upon the total weight of the monomers, 0.001 to 0.5 percent by weight of ascorbic acid, based upon the total weight of the monomers, and 10 to 30 p.p.m. of at least one iron (II)-salt based upon the total weight of the monomers. No more than 30 percent of the monomers and the majority (at least 50 percent) of the persulfate are inserted into the reaction vessel before the polymerization step starts. After the polymerization step starts, the remaining amount of monomers are dosed into the reaction vessel concurrently and parallel with the iron (II)-salt and the ascorbic acid in such a manner that the preselected polymerization temperature remains almost constant.
    • 使用水性分散体,着色或未着色的漆制备漆的方法在热处理时自交联并且含有基本上由以下单体组成的粘合剂:
    • 6. 发明授权
    • Substituted P,P'-methylene-bis-aniline
    • 取代的P,P'-亚甲基双苯胺
    • US4978791A
    • 1990-12-18
    • US748594
    • 1985-06-25
    • Theodor VolkerHans Althaus
    • Theodor VolkerHans Althaus
    • C08G18/00C07C209/78C07C211/50C07C211/52C08G18/32C08G18/38C08G18/65C08G59/00C08G59/50C08G59/56
    • C08G18/3243C08G18/3814C08G59/5033C08G2120/00
    • 2,2'-Dichloro-6,6'-diethylmethylene-bis-aniline or mixtures thereof with compounds of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and are straight-chained or branched alkyl radicals having 2 to 4 C atoms, or R.sub.1 and/or R.sub.3 are chlorine and the remaining R's have the above-mentioned significance, as chain-extension means or cross-linkage means for polyurethanes or epoxide resins. Process for the production of 2,2'-dichloro-6,6'-diethylmethylene-bis-aniline or such mixtures. 2-ethyl-6-chloroaniline is condensed with itself or an aniline having the formula: ##STR2## wherein R.sub.5 and R.sub.6 are the same or different and are straight-chained or branched having 2 to 4 C atoms, with the proviso that R.sub.5 can also be chlorine, in acidic medium with formaldehyde or compounds which form formaldehyde. The compounds in the mixture can be condensation products of two molecules of such aniline derivatives.
    • 2,2'-二氯-6,6'-二乙基亚甲基双苯胺或其与下式化合物的混合物:其中R 1,R 2,R 3和R 4相同或不同,为直链或支链烷基 具有2至4个C原子的基团,或R 1和/或R 3为氯,并且其余R具有上述意义,作为聚氨酯或环氧树脂的链延伸方式或交联方式。 制备2,2'-二氯-6,6'-二乙基亚甲基双苯胺或这些混合物的方法。 2-乙基-6-氯苯胺与其本身或具有下式的苯胺缩合:其中R 5和R 6相同或不同,是直链或支链的,具有2至4个C原子,条件是R 5可以 也是氯,在酸性介质中与甲醛或形成甲醛的化合物。 混合物中的化合物可以是两分子这种苯胺衍生物的缩合产物。