Patent ID: 6964779

Claim:
A method for producing compressed tablets, comprising: selecting powdered or granular material comprising an active compound which is denaturalized or inactivated when compressed at a pressure greater than or equal to 1 ton/cm 2 , providing a spraying chamber housing a punch and a die, generating pulsating vibration air, spraying, within a spraying chamber, a lubricant admixed with said pulsating vibration air to apply the lubricant on surfaces of said punch and die, mixing said powdered or granular material with a diluting agent to make a molding material, said molding material not containing said lubricant, and compressing said molding material using said lubricated punch and said lubricated die surfaces at a pressure less than 1 ton/cm 2 to produce compressed tablets, wherein sprayed lubricant is incorporated in said tablets at an amount not less than 0.0001 weight percent and not greater than 0.2 weight percent.