Patent ID: 7314590
Filing Date: 2008-01-01
Classification: B29C,F16J

Abstract:
1. A method of preparing a coated molded plastic article comprising: (a) providing a mold apparatus comprising, (b) positioning said first die and said second die at a first distance, thereby forming a parting line between said first die and said second die, and forming a first mold cavity defined in part by the inner surface of said first die and the inner surface of said second die, said gasket being compressed and the upper surface of said first extension and the upper surface of said second extension being substantially level with said parting line; (c) injecting a plastic material into said first mold cavity, thereby forming a molded plastic article having an upper surface; (d) positioning said first die and said second die at a second distance, said second distance being greater than said first distance, thereby forming a second mold cavity defined in part by the inner surface of said first die, the upper surface of said molded plastic article and a portion of the upper surface of said first extension of said gasket; and (e) injecting a coating composition into said second mold cavity, thereby forming said coated molded plastic article, wherein when said first die and said second die are positioned at said first distance and said second distance, said gasket is compressed along the vertical center axis of said gasket, said first force exerted laterally outward along said exterior surface of said first extension maintains said first seal, and said second force exerted laterally outward along said exterior surface of said second extension maintains said second seal during the plastic material injection step and the coating composition injection step.