Flexible plastic lens and method of optimizing the scratch resistance of such a lensHECK, WOLFGANG, DIPL.-ING. FH, RENNINGEN, DEWOLF, UWE, ESSELBACH, DE
Apply a plastic buffing compound to a 100 percent cotton rag. Plastic buffing compounds come in two strengths: one for deep scratches and one for light scratches. Micro cracks from sun damage are repaired with a light scratch remover. Buff the scratches out, using a circular motion rather tha...
about 1 to 20 alkylene oxide groups and about 10 to 70 wt.% polyacryloyl alkane polyol contg. max. about 24 carbon atoms and at least about 2 O-acryloyl groups.THEODORE L PARKERセオドール エル. パーカーANTHONY RAMアンソニー ラムNAMU SAN RIナム サン リ...
about 1 to 20 alkylene oxide groups and about 10 to 70 wt.% polyacryloyl alkane polyol contg. max. about 24 carbon atoms and at least about 2 O-acryloyl groups.THEODORE L PARKERANTHONY RAMNAMU SAN RI
In order to protect the lens from abrasion the outer surface is coated with a scratch resistant glass layer (26). The layer is bonded onto the plastic or is clipped to the lens by support edges (22) of the plastic. Alternatively it is bonded to the lens using a special oil for better...
The lens is separated from the mold material, after that carried to the coating device 16, to be scratch resistance-coated and then, carried to the inspection station 22. In the meantime, the mold material is carried to the inspection station 22 by the mold conveyer 18. The operations of ...
The resin composition and plastic lens preform are selected such that the attached portion has a higher scratch resistance, a lower chromatic aberration, and/or a higher ease of edging than the lens preform.Amitava GuptaRonald D. BlumVenkatramani S. Iyer...
COATING COMPOSITION, METHOD FOR THE PRODUCTION AND SCRATCH-RESISTANT PLASTIC LENSThe present invention is concerned with a coating composition for a hard coat layer of a plastic lens, which comprises (A) a hydrolyzate of a specific alkoxysilane compound, (B) fine particles of an oxide of silicon...
Coating composition, manufacturing method thereof, and scratch resistant plastic lensThe present invention relates to (a) a hydrolyzate of a particular alkoxysilane compound, (b) a complex fine particle comprising silicon oxide, aluminum, tin, antimony, zirconium, tungsten oxide, titanium oxide and ...
COATING COMPOSITION, PROCESS FOR PRODUCING THE SAME, AND Scratch-resistant Plastic LensThe present invention is concerned with a coating composition for a hard coat layer of a plastic lens, which comprises (A) a hydrolyzate of a specific alkoxysilane compound, (B) fine particles of an oxide of...