Mold with metal oxide surface compatible with ionic release agents

• Main Authors: GAN SHUBANG, ROBINSON TIMOTHY R, HUMPHREY STEPHEN H
• Format: Patent
• Language: English
• Published: 30.01.2003
• Edition: 7
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SOUND-PRODUCING DEVICES; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A method and a system for fabricating articles made from thermoset resins using an ionic mold release agent. The invention uses a mold having a metal oxide surface with enhanced mold release characteristics. The release agent is applied internally in the resin composition or externally on the metal oxide surface. The method includes providing a mold, forming a metal oxide surface on the mold, providing an ionic release agent, providing the acid or base conjugate of the release agent at the metal oxide surface, providing a thermoset resin in the mold, and curing the resin in the mold. A method of using float glass having a SnO2 enriched surface, wherein the method includes the steps of providing an ionic release agent externally to the tin oxide surface, is also disclosed.