A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition of...http://www.google.ca/patents/US4988561?utm_source=gb-gplus-sharePatent US4988561 - Paper coated with synthetic alkali metal aluminosilicates