METHOD AND APPARATUS FOR APPLYING A SURFACTANT TO MOLD SURFACES
摘要
A method of and apparatus for employing a surfactant which is provided in order to assist in the release from each other of mold components of a multipart mold employed in the molding of polymeric articles; for instance, such as a hydrophilic contact lens, upon completion of the molding process for the polymeric articles. The surfactant is applied in the form of a film or coating on surface portions of one of the mold components in order to facilitate the disengagement between the mold components during demolding, and the removal of excess polymeric molding material adhesively deposited on surfaces thereon.
申请公布号
CA2175311(A1)
申请公布日期
1996.11.02
申请号
CA19962175311
申请日期
1996.04.29
申请人
BEATON, STEPHEN ROBERT;MARTIN, WALLACE ANTHONY;KINDT-LARSEN, TURE;WALKER, CRAIG WILLIAM;DUNCAN, GREGORY SCOTT
发明人
BEATON, STEPHEN ROBERT;MARTIN, WALLACE ANTHONY;KINDT-LARSEN, TURE;WALKER, CRAIG WILLIAM;DUNCAN, GREGORY SCOTT