公开(公告)号：EP2155479A4

公开(公告)日：2010-09-08

申请号：EP08732797

申请日：2008-03-25

Applicant: ESSILOR INT

Inventor： CHIU HAO-WEN ,  MAYR ROGER A ,  YEAN LEANIRITH

IPC: B29D11/00

CPC classification number: C08G18/4854 ,  C08G18/6674 ,  G02B1/043 ,  C08L75/04

公开(公告)号：AU2006254990A1

公开(公告)日：2006-12-14

申请号：AU2006254990

申请日：2006-06-07

Applicant: ESSILOR INT

Inventor： YANG HSINJIN E ,  MAYR ROGER A ,  CHIU HAO WEN

IPC: B29D11/00 ,  B29C45/56

Abstract: Methods are disclosed to injection mold resins, like polycarbonate, to form solid optical lenses. The lenses are ideally suited for use as very thin coating carriers. The method involves closing the mold with a clamp force less than the force exerted on the insert during injection. During injection the mold is allowed to breathe thereby overcoming many of the obstacles associated with injection molding very thin lenses. As the injection pressure subsides, the mold begins to close to perform a coining operation, resulting in a strong, high yield carrier or lens.

公开(公告)号：DE602006018450D1

公开(公告)日：2011-01-05

申请号：DE602006018450

申请日：2006-06-07

Applicant: ESSILOR INT

Inventor： MAYR ROGER A ,  CHIU HAO WEN ,  YANG HSINJIN E

IPC: B29D11/00 ,  B29C45/56

公开(公告)号：BRPI0809918A2

公开(公告)日：2014-10-07

申请号：BRPI0809918

申请日：2008-03-25

Applicant: ESSILOR INT

Inventor： CHIU HAO-WEN ,  MAYR ROGER A ,  YEAN LEANIRITH

IPC: B29D11/00

Abstract: A method of forming thermoplastic polyurethane (TPU) into an optical lens. Suitable TPUs contain urethane (—NHCOO—) repeating units that are present in at least 23% by weight. This range of urethane weights is an indicator of a flexural modulus above 1,400 MPa. The TPUs have refractive indices above 1.54 and Abbe numbers above 27. They have glass transition temperatures above about 100 degrees C. The selected TPU can be injection molded to form ophthalmic lenses, that are well suited for use in rimless spectacles. The lenses are highly solvent resistant, while at the same time being readily tintable. The lenses made according the invention meet FDA 21 CFR 801.41 Impact Requirement, and ANSI Z87.1 high velocity impact (HVI) standard.

公开(公告)号：AU2006254990B2

公开(公告)日：2011-01-20

申请号：AU2006254990

申请日：2006-06-07

Applicant: ESSILOR INT

Inventor： YANG HSINJIN E ,  MAYR ROGER A ,  CHIU HAO WEN

IPC: B29D11/00 ,  B29C45/56

Abstract: Methods are disclosed to injection mold resins, like polycarbonate, to form solid optical lenses. The lenses are ideally suited for use as very thin coating carriers. The method involves closing the mold with a clamp force less than the force exerted on the insert during injection. During injection the mold is allowed to breathe thereby overcoming many of the obstacles associated with injection molding very thin lenses. As the injection pressure subsides, the mold begins to close to perform a coining operation, resulting in a strong, high yield carrier or lens.

公开(公告)号：BRPI0611349A2

公开(公告)日：2011-01-04

申请号：BRPI0611349

申请日：2006-06-07

Applicant: ESSILOR INT

Inventor： MAYR ROGER A ,  CHIU HAO WEN ,  YANG HSINJIN EDWIN

IPC: B29D11/00 ,  B29C45/56

Abstract: Methods are disclosed to injection mold resins, like polycarbonate, to form solid optical lenses. The lenses are ideally suited for use as very thin coating carriers. The method involves closing the mold with a clamp force less than the force exerted on the insert during injection. During injection the mold is allowed to breathe thereby overcoming many of the obstacles associated with injection molding very thin lenses. As the injection pressure subsides, the mold begins to close to perform a coining operation, resulting in a strong, high yield carrier or lens.