Molds for producing ophthalmic lenses

This invention discloses improved mold parts fashioned from Zieglar-Natta catalyzed based thermoplastic polyolefins with a MFI less than 21 which 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,...

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Bibliographic Details
Main Authors YIN, CHANGHONG, ANSELL, SCOTT F
Format Patent
LanguageEnglish
French
German
Published 15.03.2006
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:This invention discloses improved mold parts fashioned from Zieglar-Natta catalyzed based thermoplastic polyolefins with a MFI less than 21 which 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.
Bibliography:Application Number: EP20050255254