Epoxy resin-diammonium salt emulsion and process for its production
Номер патента: CA1244565A
Опубликовано: 08-11-1988
Автор(ы): Jorn-Volker Weiss
Принадлежит: Chemische Werke Huels AG
Опубликовано: 08-11-1988
Автор(ы): Jorn-Volker Weiss
Принадлежит: Chemische Werke Huels AG
Реферат: ABSTRACT OF THE DISCLOSURE An epoxy resin-diammonium salt emulsion is based on a liquid epoxy resin, water, an emulsifier and a latent curing agent, wherin the emulsifier is (a) a polyvinyl alcohol obtained by saponification of polyvinyl acetate with a degree of hydrolysis of at least 70% and a molecular weight of at least 5,000, (b) a polyoxazoline having a molecular weight of 10,000-100,000, and/or (c) a copolymer of N-vinylpyrrolidone with - vinyl esters of mono- or dibasic carboxylic acids of up to 6 carbon atoms, - (meth)acrylic esters of mono- and dihydric alcohols of up to 6 carbon atoms, - maleic, fumaric, crotonic acid and/or - styrene and wherein the latent curing agent is the salt from a (a) diamine of the formula H2N-CH2-R-NH2 or H2N-R-CH2-R-NH2 wherein R is - an optionally substituted C4-9-alkylene residue, - an optionally substituted C6-9-cyclo- alkylene residue, or - a C7-9-aralkylene residue, with (b) optionally hydroxy-group-containing, aliphatic, cycloaliphatic, or aromatic mono- or dicarboxylic acids of up to 12 carbon atoms.
Emulsion based on epoxy resin/polyammonium salt and process for the preparation thereof
Номер патента: CA1203038A. Автор: Heinz Riemer,Jorn-Volker Weiss. Владелец: Chemische Werke Huels AG. Дата публикации: 1986-04-08.