.~.~.~> Specified filler or organic material containing
DEFINITION
Classification: 106/690
Phosphate based cement:
(under subclass 638) Subject matter involving compositions employing phosphates or phosphorus acids as a reactive compound of the settable material.
(1) Note. Commonly the composition comprises: 1. an inorganic salt of an acid phosphate, especially alkali metal or ammonium acid phosphates and 2. a basic material such as magnesium oxide, deadburned magnesite, deadburned dolomite or deadburned aluminates of the alkali and alkaline earth metals.
