Abstract: An abrasive article is provided, the article including a substrate having an abrasive surface thereon including particles of an abrasive material secured by a binding medium wherein at least a portion of the abrasive surface has thereon a coating including a crosslinked siloxane. Methods of making and using such an articles are also presented.

Abstract: A conformable, multi-layered tape for bonding fusible metal alloy to ophthalmic lens blanks is provided. The tape comprises a polymeric backing layer, a pressure-sensitive adhesive on one surface of the backing layer, and a non-tacky adhesion-promoting layer on the other surface of said backing layer. The tapes have a 2% secant modulus in the range of about 35 kg/cm.sup.2 to 20,000 kg/cm.sup.2, a shear value of at least about 10 minutes, a 180.degree. peel value in the range of about 60 g/cm width to 1400 g/cm width, a percent elongation at break in the range of about 45% to 1000% and a lap shear value of at least about 5 kg/cm.sup.2. Preferably the tapes also have a tensile strength at 100% elongation in the range of about 0.2 to 4 kg/cm.

Abstract: A device for applying pressure sensitive adhesive coated tape smoothly over a major surface of a lens blank. The lens blank is positioned on a lens blank support member in an opening in a tape support member, tape is clamped over the opening, and the tape and lens blank support members are moved relative to each other to bring the tape and surface of the lens blank into even smooth engagement with each other.