Patent ID: 6776836
Filing Date: 2004-08-17
Classification: C04B,C09J

Abstract:
An adhesive composition including a product of interaction between silicate aqueous solution (water glass) and anhydrous lithium hydroxide mixed with di- or trihydric alcohol or their mixture, vollastonite, talc and inorganic pigment, wherein the silicate aqueous solution initially has a density of about 1.30 to 1.37 g/cm3 with a SiO2/K2O molar ratio of about 3.4-3.7, wherein said vollastoriite initially has a particle size not more than about 150 mm and a length to diameter ratio of about 5-3:1, and wherein the composition has a component ratio (in percent by weight) as follows:a) Vollastoniteabout 38.0-45.0b) Talcabout 8.0-12.0c) Anhydrous lithium hydroxideabout 1.0-1.5d) Di- or trihydric alcohol or their mixtureabout 3.0-5.0e) Inorganic pigmentabout 3.0-5.0f) Potassium silicate aqueous solutionbalance.selected from the groupconsisting of sodium waterglass and potassium water glass