A binder composition and its use for the production of a coating or sealing composition
Номер патента: CA2080457A1
Опубликовано: 16-04-1993
Автор(ы): Harald Blum
Принадлежит: Bayer Aktiengesellschaft, Harald Blum
Опубликовано: 16-04-1993
Автор(ы): Harald Blum
Принадлежит: Bayer Aktiengesellschaft, Harald Blum
Реферат: The present invention relates to an aqueous binder composition containing A) an aqueous solution or dispersion of a water-dilutable organic polyol component containing A1) at least one water-dilutable polyester resin containing sulfonate and hydroxyl groups and having a molecular weight (M n) of 500 to 50,000, an OH number of 20 to 240 mg KOH/g, a content of sulfonate groups (-SO3-) of 4 to 70 milliequivalents per 100 g of polyester resin and a content of carboxylate groups (-COO-) of 0 to 40 milliequivalents per 100 g of polyester resin and A2) optionally a reactive thinner containing at least one water-soluble monohydric or polyhydric alcohol which has a molecular weight (M n) below 500 and which is non-distillable at normal pressure or has a boiling point of at least 150°C, and B) a polyisocyanate component which is emulsified in the aqueous solution or dispersion A), has a viscosity at 23°C of 50 to 10,000 mPa.s and contains at least one organic polyisocyanate, wherein components A) and B) are present at an NCO:OH equivalent ratio of 0.5:1 to 5:1. The present invention also relates to a process for the production of a coating or sealing composition containing this aqueous binder.
Process for the solvent-free production of solid plastic moldings sealing compounds and insulations using a polyisocyanate mixture containing 2,4'-diisocyanatodiphenylmethane
Номер патента: US4163095A. Автор: Herbert Gebauer,Rolf Kubens,Fritz Ehrhard. Владелец: Bayer AG. Дата публикации: 1979-07-31.