Patent application number | Description | Published |
20080239237 | MOLDS WITH THERMOPLASTIC ELASTOMERS FOR PRODUCING OPHTHALMIC LENSES - This invention discloses improved mold parts fashioned from a thermoplastic resin compounded with a thermoplastic elastomers. The mold parts can be used in manufacturing processes, such as, for example: continuous, in-line or batched processes to obtain a high degree of precision and accuracy, such as those necessary in the manufacture of ophthalmic lens mold applications. In addition, the present invention includes ophthalmic lenses created using the improved mold parts. | 10-02-2008 |
20080246171 | CHILLED INJECTION MOLDING DURING OPHTHALMIC LENS MANUFACTURE - The present invention includes molds for forming ophthalmic lenses, such as contact lens. In particular, the present invention relates to apparatus, molds and methods for fashioning mold parts used to fashion an ophthalmic lens which includes cooling a mold structure used to fashion a mold part prior to depositing a molten material into the mold structure. | 10-09-2008 |
20080290534 | OPHTHALMIC LENS MOLD SURFACE ENERGY DIFFERENTIAL - This invention discloses improved mold parts fashioned from a thermoplastic resin compounded with an additive to reduce the surface energy of the mold part. The mold parts can be used in manufacturing processes, such as, for example: continuous, in-line or batched processes of ophthalmic lens molds. | 11-27-2008 |
20080290535 | REDUCTION OF EXCESS POLYMERIC FLASH RING - The present invention includes methods and apparatus for forming a biomedical device, such as an ophthalmic lens, in a area defined by a first mold part and a second mold part wherein during the formation of the biomedical device a HEMA is formed and the HEMA ring and a greater adhesive force is generated on the HEMA ring by the second mold part than the first mold part. | 11-27-2008 |
20080290536 | TEMPERATURE CYCLING FACILITATED RELEASE OF OPHTHALMIC LENSES - This invention discloses methods and apparatus for facilitating release of an ophthalmic lens from a mold part used to form the lens. According to the present invention, the ophthalmic lens and a mold part used to form the ophthalmic lens are exposed first to an environment of reduced thermal energy and then exposed to an environment of increased thermal energy. | 11-27-2008 |
20090091047 | MOLDS FOR PRODUCING CONTACT LENSES - This invention describes molds made from alicyclic co-polymers that are useful in the production of contact lenses and methods for their use. | 04-09-2009 |
20090121368 | MOLDS FOR PRODUCING CONTACT LENSES - This invention describes molds made from alicyclic co-polymers that are useful in the production of contact lenses and methods for their use. | 05-14-2009 |
20090146329 | LENS RELEASE - This invention discloses improved mold parts for ophthalmic lenses fashioned from a first thermal plastic resin compounded with a second thermal plastic resin resulting in a thermal plastic compound with a deionized water contact angle that is greater than the deionized water contact angle of either the first thermal plastic resin or the second thermal plastic resin. The mold parts can be used in manufacturing processes, such as, for example: continuous, in-line or batched processes. | 06-11-2009 |
20090321970 | OPHTHALMIC LENS MOLDS PARTS WITH SILOXANE WAX - This invention discloses improved mold parts for ophthalmic lenses fashioned from a thermal plastic resin compounded with a siloxane wax resulting in a thermal plastic compound with a deionized water contact angle that is greater than the deionized water contact angle of the pure thermal plastic resin. The mold parts can be used in manufacturing processes, such as, for example: continuous, in-line or batched processes. | 12-31-2009 |
20110081439 | EXCESS POLYMER RING REMOVAL DURING OPHTHALMIC LENS MANUFACTURE - The present invention includes molds for forming ophtalmic lenses, such as contact lens. In particular, the present invention relates to apparatus, molds and methods for fashioning an ophthalmic lens with a mold assembly that includes two or more mold parts with at least one of the mold parts including a flange surface and a static charge differential between each mold part, including the flange surface. | 04-07-2011 |
20110101550 | MOLDS FOR PRODUCING CONTACT LENSES - This invention describes molds made from alicyclic co-polymers that are useful in the production of contact lenses and methods for their use. | 05-05-2011 |