Synthetic alkali metal alumino-silicates, compositions and...

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B01J 29/06 (2006.01) B01F 17/00 (2006.01) C08K 3/34 (2006.01) C08K 9/06 (2006.01) C09C 1/42 (2006.01) C09D 5/02 (2006.01) C09D 7/00 (2006.01) C11D 3/12 (2006.01) D21H 17/68 (2006.01) D21H 19/40 (2006.01)

Patent

CA 1293239

Abstract A family of novel and unique synthetic alkali metal aluminosilicates (SAMS) are produced by the hydrothermal reaction between kaolin clay and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition of xM2O:A12O3:ySiO2:ZH2O where x is the number of moles of alkali metal oxide and is from 0.01 to 2.0, M is an alkali metal, y is the number of moles of SiO2 in the unique SAMS composition, and z is the number of moles of bound water and is in the range of from 1.0 to 5Ø The composition essentially comprises altered kaolin clay platelets with an integral rim or protuberance of essentially amorphous alkali metal silicate-kaolin reaction product. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO2 extenders, as silica extenders or as reinforcing agents for paper, paint, rubber, plastics and specialty products.

539822

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