Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-02-21
1979-05-08
Marquis, Melvyn I.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2604482Q, 2604482B, 264 1, 264 2, 351160H, 526279, 528 24, 528 26, 528 27, 528 32, 528 37, 528 42, C08L 4304, C08L 8300
Patent
active
041536410
ABSTRACT:
Monomeric polysiloxanes end-capped with activated unsaturated groups and polymers and copolymers thereof are disclosed herein for use as contact lenses with improved properties, such as, oxygen transportability, hydrolytic stability, biological inertness, transparency and improved strength without the use of fillers. The polymer composition comprises a poly(organosiloxane) .alpha., .omega. terminally bonded through a divalent hydrocarbon group to a polymerized activated unsaturated group. Contact lenses made therefrom can be, as commonly referred to, "hard" or "soft". This hardness or softness is a function of the comonomer or the molecular weight of the monomers. Preferable the contact lenses are "soft".
The copolymer compositions of the instant invention comprise the polymerization product of the polysiloxane monomers and monomer or monomers containing an activated vinyl group. These polymers are employed to make optical products, e.g. contact lenses, intraocular implants, etc.
REFERENCES:
patent: 2770633 (1956-11-01), Sommer
patent: 2793223 (1957-05-01), Merker
patent: 2865885 (1958-12-01), DE Benneville et al.
patent: 2906735 (1959-09-01), Speier
patent: 2922807 (1960-01-01), Merker
patent: 3228741 (1966-01-01), Becker
patent: 3341490 (1967-09-01), Burdick et al.
patent: 3518324 (1970-06-01), Polmanteer
patent: 3763081 (1973-10-01), Holub et al.
patent: 3808178 (1974-04-01), Gaylord
patent: 3878263 (1975-04-01), Martin
patent: 3996187 (1976-12-01), Travnicek
patent: 3996189 (1976-12-01), Travnicek
Katz et al., J. Polymer Sci., No. 46, pp. 139-148 (1974).
Katz et al., J. Polymer Sci., vol. 13, pp. 645-658 (1975).
Deichert William G.
Su Kai C.
van Buren Martin F.
Bausch & Lomb Incorporated
Lyons Ronald L.
Marquis Melvyn I.
Parker Frank C.
LandOfFree
Polysiloxane composition and contact lens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polysiloxane composition and contact lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polysiloxane composition and contact lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1233334