7 nov. 200126 sept. 20023M Innovative Properties CompanyUniform small cell foams and a continuous process for making sameUS2003006052210 avr. 200227 mars 2003L&L Products, Inc.Combining a premixed epoxy resin containing an encapsulated solvent foaming agent core with H3PO4, applying to a member such as an automobile frame or body, and softening the capsule to release the foaming agentUS20030060523