Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2007-07-06
2010-10-19
Pezzuto, Helen L. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S330300, C525S355000, C525S359400, C525S383000
Reexamination Certificate
active
07816460
ABSTRACT:
The present invention relates to compositions comprising poly-HEMA having a peak molecular weight between about 25,000 and about 100,000, preferably between 25,000 and 80,000 and a polydispersity of less than about 2 to less than about 3.8 respectively and covalently bonded thereon, at least one cross-linkable functional group. The present invention further relates to low polydispersity poly-HEMA suitable for making the crosslinkable prepolymers, processes for functionalizing and purifying said poly-HEMA to form said crosslinkable prepolymers, viscous solutions made from said crosslinkable prepolymers, hydrogels made from said viscous solutions and articles made from said crosslinkable polymers, hydrogels and viscous solutions.
REFERENCES:
patent: 3854982 (1974-12-01), Aelion et al.
patent: 3916033 (1975-10-01), Merrill
patent: 3948841 (1976-04-01), Dusek
patent: 4139513 (1979-02-01), Tanaka et al.
patent: 4139692 (1979-02-01), Tanaka et al.
patent: 4235985 (1980-11-01), Tanaka et al.
patent: 4264489 (1981-04-01), Ibsen et al.
patent: 4323636 (1982-04-01), Chen
patent: 4430417 (1984-02-01), Heinz et al.
patent: 4495313 (1985-01-01), Larsen
patent: 4698373 (1987-10-01), Tateosian et al.
patent: 4711943 (1987-12-01), Harvey, III
patent: 4889664 (1989-12-01), Kindt-Larsen et al.
patent: 4910277 (1990-03-01), Bambury et al.
patent: 4920184 (1990-04-01), Schafer et al.
patent: 4963159 (1990-10-01), Narducy et al.
patent: 4978713 (1990-12-01), Goldenberg
patent: 5002794 (1991-03-01), Ratner et al.
patent: 5039459 (1991-08-01), Kindt-Larsen et al.
patent: 5070215 (1991-12-01), Bambury et al.
patent: 5170192 (1992-12-01), Pettigrew et al.
patent: 5779943 (1998-07-01), Enns et al.
patent: 5782460 (1998-07-01), Kretzschmar et al.
patent: 5849810 (1998-12-01), Muller
patent: 5849841 (1998-12-01), Muhlebach et al.
patent: 5932674 (1999-08-01), Muller
patent: 5944853 (1999-08-01), Molock et al.
patent: 5981675 (1999-11-01), Valint
patent: 5998498 (1999-12-01), Vanderlaan et al.
patent: 6087415 (2000-07-01), Vanderlaan et al.
patent: 6106746 (2000-08-01), Muller
patent: 6380314 (2002-04-01), Soane et al.
patent: 6407145 (2002-06-01), Muller
patent: 6416690 (2002-07-01), Soane et al.
patent: 6419858 (2002-07-01), Houston et al.
patent: 6545097 (2003-04-01), Pinchuk
patent: 6570714 (2003-05-01), Soane et al.
patent: 6627124 (2003-09-01), Herbrechtsmeier
patent: 6709103 (2004-03-01), Roffman et al.
patent: 6733700 (2004-05-01), Houston et al.
patent: 6846892 (2005-01-01), Kindt-Larsen et al.
patent: 2002/0027638 (2002-03-01), Thakrar et al.
patent: 2003/0020870 (2003-01-01), Soane et al.
patent: 2003/0162862 (2003-08-01), McCabe
patent: 2003/0236376 (2003-12-01), Kindt-Larsen et al.
patent: 2006/0036052 (2006-02-01), Kindt-Larsen et al.
patent: 2006/0100408 (2006-05-01), Powell et al.
patent: 0106641 (1984-04-01), None
patent: 0238863 (1987-09-01), None
patent: 546640 (1993-06-01), None
patent: 604369 (1994-06-01), None
patent: 453231 (1996-03-01), None
patent: 0823643 (1998-02-01), None
patent: 0951654 (1999-10-01), None
patent: 1245374 (2002-10-01), None
patent: 2257978 (1993-01-01), None
patent: 61228438 (1986-10-01), None
patent: 03-035014 (1991-02-01), None
patent: 2000-500516 (2000-01-01), None
patent: WO 91/04283 (1991-04-01), None
patent: WO 98/42497 (1998-10-01), None
patent: WO 00/17675 (2000-03-01), None
patent: WO 00/55653 (2000-09-01), None
patent: WO 03/003073 (2003-01-01), None
patent: WO 2003003073 (2003-01-01), None
Robinson, K.L et al, Controlled polymerization of 2-hydroxyethyl methacrylate by ATRP at ambient temperature, Macromolecules, 2001, vol. 34, No. 10, p. 3155-3158.
Beers, K.L et al. Atom Transfer Radical Polymerization of 2-Hydroxyethyl Methacrylate, Macromolecules, 1999, vol. 32, No. 18, p. 6772-5778.
U.S. Appl. No. 60/363,639, filed Mar. 11, 2002, Johnson & Johnson Vision Care, Inc.
Polymers and Resins, Brage Golding, Ph.D., Van Nostrand Company, pp. 457-463.
Hansen Solubility Parameters; A User's Handbook, Charles M. Hansen, p. 43-53, CRC Press 2000 and CMH's Sphere computer program for the calculations.
The Polymeric Materials Encyclopedia, Contact Lenses, Gas Permeable, Jay F. Kunzler, p. 1-11.
Handbook of Polymer Liquid Interaction Parameters and Solubility Parameter, CRC Press, Inc. 1990 and Handbook of Solubility Parameters and Other Cohesion Parameters, A. F. M. Barton, CRC Press, 1985, Table 5.
PCT International Search Report, dated May 6, 2005, for PCT International Application No. PCT/US03/06835.
Kindt-Larsen Ture
Molock Frank F.
Rossignol Hélène
Sorensen Jens-Erik
Steenstrup Frederik Resen
Johnson & Johnson Vision Care Inc.
Pezzuto Helen L.
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