RESIN COMPOSITION FOR CLEANING MOLDS AND RECOVERING THE RELEASE PROPERTIES OF MOLDS AND METHOD FOR CLEANING MOLDS AND RECOVERING THE RELEASE PROPERTIES OF MOLDS

• Main Authors: HAMAURA KENICHI, HIROMITSU KIYOHITO, NOMURA HIROAKI
• Format: Patent
• Language: English
• Published: 05.08.2009
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A resin composition for cleaning molds and recovering the release properties of molds which can remove not only stains of a cavity, a runner and a gate but also stains of an air vent and a parting area of a mold and can impart release properties to the surface of a mold. The composition comprises a melamine resin, at least one metal soap type mold-releasing agent, and preferably mannitol and/or a mold-releasing agent other than metal soaps. The composition is a compression-type one which has both the ability to clean a mold and the ability to recover the release properties of a mold and thus dispenses with the release properties recovering step which was to be conducted after the completion of the mold cleaning step in the prior art. ® KIPO & WIPO 2009