Low temperature injection molded hydrodisintegratable...

Details Low temperature injection molded hydrodisintegratable... Low temperature injection molded hydrodisintegratable...

B - Operations, Transporting

29

C

B29C 45/00 (2006.01) C08L 51/08 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2209485

Disclosed is a method for injection molding certain hydrodisintegratable materials which, when injection molded to form a desired object, acquire and maintain the desired shape. The method includes the steps of maintaining extrusion temperatures of the hydrodisintegratable material at or below about 250 degrees F. and maintaining the temperature of the mold at or below about 55 degrees F. In the presence of water, the molded object has the ability to rapidly disintegrate and disperse when subjected to standardized agitation testing.

Présentation d'une méthode de moulage par injection de matériaux désagrégeables par l'eau qui, une fois moulés par injection pour former l'objet voulu, prennent et conservent cette forme. La méthode comprend les étapes consistant à maintenir les températures d'extrusion du matériau désagrégeable par l'eau à environ 250 degrés Fahrenheit ou moins et à maintenir la température du moule à environ 55 degrés Fahrenheit ou moins. En présence d'eau, l'objet moulé a la propriété de se désintégrer rapidement et de se dissoudre lorsqu'il subit un essai d'agitation standard.

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