发明名称 INJECTION MOLDING PROCESS
摘要 A method of molding a solid article such as a syringe with zero draft or low draft is disclosed. The method includes heating a low draft mold to expand it, then injection molding the part, followed by cooling at least part of the low draft mold element to thermally contract at least a portion of the low draft element away from the solid low draft formed surface sufficiently to release the low draft element from the low draft formed surface. Syringes and other articles formed by this method are also disclosed having and interior draft angle of 0 to 0.5 degrees, optionally at least substantially zero degrees. The syringe plunger can be selectively coated with lubricity coatings and other functional coatings to improve performance of the syringe.
申请公布号 EP2593286(A1) 申请公布日期 2013.05.22
申请号 EP20110736511 申请日期 2011.07.15
申请人 SIO2 MEDICAL PRODUCTS, INC. 发明人 FELTS, JOHN ,T.;GIRAUD, JEAN-PIERRE;FISK, THOMAS;ABRAMS, ROBERT;FERGUSON, JOHN;FREEDMAN, JONATHAN;PANGBORN, ROBERT;SAGONA, PETER;RABINNE, BRUCE;PICHOT, HERVE
分类号 B29C45/40;A61M5/31;A61M5/315;B29C45/00;B29C45/26;B29C45/78;C23C16/04 主分类号 B29C45/40
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