Method for injection molding at low, substantially constant pressure

• Main Authors: BERG JR., CHARLES JOHN, SCHILLER, GARY FRANCIS, SCHARRENBERG, RAINER, NEUFARTH, RALPH EDWARD, ALTONEN, GENE MICHAEL, LAYMAN, JOHN MONCRIEF
• Format: Patent
• Language: English
• Published: 03.03.2016
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; 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

Injection molding methods at low, substantially constant melt pressures in particular a method comprising: (a) filling with a shot comprising a molten thermoplastic material an unpressurized mold cavity of a molding apparatus, the shot comprising the molten material having a melt pressure that, upon...