Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2006-12-12
2006-12-12
Buttner, David J. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S091000, C524S102000, C524S195000, C524S240000, C524S287000, C524S292000, C473S374000, C473S378000
Reexamination Certificate
active
07148278
ABSTRACT:
A golf ball including a center, a cover, and, optionally, at least one intermediate layer disposed between the center and the cover, wherein the cover is formed from a polyurethane composition, or a reaction product thereof, including at least one polyol; at least one polyisocyanate; at least one curing agent; and at least one color stabilizer; wherein the color stabilizer is present in an amount sufficient to provide a ΔC* of less than about 22 upon exposure to UV light over a timeframe of 1 hour.
REFERENCES:
patent: 3147324 (1964-09-01), Ward
patent: 3681431 (1972-08-01), Dexter et al.
patent: 3989568 (1976-11-01), Isaac
patent: 4028331 (1977-06-01), Hotta
patent: 4123061 (1978-10-01), Dusbiber
patent: 4548919 (1985-10-01), Megna
patent: 4721744 (1988-01-01), Ishii
patent: 4839405 (1989-06-01), Speelman et al.
patent: 4925888 (1990-05-01), Aumueller
patent: 5156405 (1992-10-01), Kitaoh et al.
patent: 5494291 (1996-02-01), Kennedy
patent: 5688191 (1997-11-01), Cavallaro et al.
patent: 5692974 (1997-12-01), Wu et al.
patent: 5792008 (1998-08-01), Kakiuchi et al.
patent: 5800286 (1998-09-01), Kakiuchi et al.
patent: 5823890 (1998-10-01), Maruko et al.
patent: 5840788 (1998-11-01), Lutz et al.
patent: 5908358 (1999-06-01), Wu
patent: 5959059 (1999-09-01), Vedula et al.
patent: 5976035 (1999-11-01), Umezawa et al.
patent: 5993968 (1999-11-01), Umezawa et al.
patent: 6117024 (2000-09-01), Dewanjee
patent: 6123628 (2000-09-01), Ichikawa et al.
patent: 6287080 (2001-09-01), Evans
patent: 6309313 (2001-10-01), Peter
patent: 6949595 (2005-09-01), Morgan et al.
patent: 2002/0098914 (2002-07-01), Calabria
patent: 2004/0176531 (2004-09-01), Morgan et al.
patent: 98/37929 (1998-09-01), None
Andrews, Stabilization Strategies for Weatherable PU, Rubber World 216(1); pp. 22-24, 1997.
Chu, Evaluation of Sunlight Stability of Polyurethane Elastomers for Maxillofacial Use, Journal of Biomedical Materials Research vol. 13 #3; May 1978; p. 347-359.
Bulpett David A.
Harris Kevin M.
Kuntimaddi Manjari
Lutz Mitchell E.
Wu Shenshen
Acushnet Company
Buttner David J.
Lacy William B.
LandOfFree
Urethane elastomers with improved color stability does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Urethane elastomers with improved color stability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Urethane elastomers with improved color stability will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3710058