Method and apparatus for applying a surfactant to mold surfaces

Details Method and apparatus for applying a surfactant to mold surfaces Method and apparatus for applying a surfactant to mold surfaces

B - Operations, Transporting

29

C

B29C 33/58 (2006.01) B29C 33/62 (2006.01) B29D 11/00 (2006.01)

Patent

CA 2175311

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 multi-part 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.

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