发明名称 |
KLEBEFILM ZUM BEFESTIGEN EINES LINSENROHRLINGS |
摘要 |
A conformable tape for bonding a lens block to ophthalmic lens blanks is provided. The tape comprises a polymeric backing and a pressure-sensitive adhesive. In a first preferred embodiment the surface of the backing is a blend of an olefin polymer with a polymer having acidic functionality. The blend may be formed as the backing layer, i.e., directly on the adhesive layer of the tape, or as the outer surface layer of a multilayered backing. In a second embodiment, the surface of the backing is a copolymer of an olefin monomer with a monomer having pendant acidic functionality. A lens block may be adhered to an ophthalmic lens blank by applying a section of the tape described above to an ophthalmic lens so that the pressure sensitive adhesive of the tape contacts the lens; conforming the tape to the compound surface of the lens; and attaching a lens block to at least a portion of the polymer backing layer. The tape may be made by extruding a polymeric backing material as described above; extruding a pressure-sensitive adhesive; and contacting the polymeric backing material and the pressure-sensitive adhesive. If desired, the polymeric backing material and the pressure sensitive adhesive may be coextruded to form the tape. In most preferred embodiments, the tape may be wound into a roll without a separate liner material. |
申请公布号 |
DE69612008(T2) |
申请公布日期 |
2001.08.02 |
申请号 |
DE1996612008T |
申请日期 |
1996.07.11 |
申请人 |
MINNESOTA MINING AND MFG. CO., SAINT PAUL |
发明人 |
PARISH, JR.;MARTIN, G.;HYDE, D. |
分类号 |
B24B13/005;B32B27/28;C09J7/02;C09J125/00;C09J133/00;(IPC1-7):B24B13/005 |
主分类号 |
B24B13/005 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|