Patent ID: 8822557
Filing Date: 2014-09-02
Classification: C04B,Y02W

Abstract:
1. A process for the production of a foam which comprises foaming a mixture, comprising from 50 to 97% by weight of a mineral A), selected from the group consisting of FGD, gypsum, kaolin and wollastonite, from 1 to 45% by weight of a polyvinylamine B) dissolved in water from 1 to 50% by weight of a blowing agent C) from 1 to 5% by weight of an emulsifier D) from 0 to 5% by weight of a crosslinking agent E) reactive with the polyvinylamine B), the percentages by weight of the components A) and B) being based on solid and the sum of A) to E) does not exceed 100% by weight.