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
2006-06-27
2006-06-27
Buttner, David J. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S09200D, C525S130000, C525S173000, C525S177000, C525S184000, C525S193000, C525S274000, C473S373000, C473S374000, C473S377000
Reexamination Certificate
active
07067582
ABSTRACT:
The invention is directed to golf ball core compositions comprising at least one natural or synthetic rubber and at least one high Vicat softening temperature thermoplastic material, methods of preparing the compositions, and golf ball cores and golf balls including the compositions. The compositions of the invention are made by mixing at least one natural or synthetic rubber and at least one thermoplastic or thermoplastic elastomer at a first temperature; cooling the mixture to a second temperature which is below an activation temperature of a free-radical initiator; adding the free-radical initiator to the first mixture to form a second mixture; and heating the second mixture to a third temperature that to facilitate crosslinking. The golf ball cores are incorporated into multilayer balls including dual cover balls with thin outer layers.
REFERENCES:
patent: 3262272 (1966-07-01), Barakauskas et al.
patent: 3264272 (1966-08-01), Rees
patent: 3534965 (1970-10-01), Harrison
patent: 3883145 (1975-05-01), Cox et al.
patent: 4337946 (1982-07-01), Saito et al.
patent: 4919434 (1990-04-01), Saito
patent: 4972020 (1990-11-01), Shiraki et al.
patent: 5093423 (1992-03-01), Bayan et al.
patent: 5100947 (1992-03-01), Puydak et al.
patent: 5270386 (1993-12-01), Laughner
patent: 5334673 (1994-08-01), Wu
patent: 5368304 (1994-11-01), Sullivan et al.
patent: 5439227 (1995-08-01), Egashira et al.
patent: 5484870 (1996-01-01), Wu
patent: 5688191 (1997-11-01), Cavallaro et al.
patent: 5692974 (1997-12-01), Wu et al.
patent: 5779562 (1998-07-01), Melvin et al.
patent: 5833553 (1998-11-01), Sullivan et al.
patent: 5885172 (1999-03-01), Hebert et al.
patent: 5895105 (1999-04-01), Nesbitt
patent: 5948859 (1999-09-01), Sano et al.
patent: 6093357 (2000-07-01), Bissonette et al.
patent: 6180722 (2001-01-01), Dalton
patent: 6284840 (2001-09-01), Rajagopalan et al.
patent: 6431999 (2002-08-01), Nesbitt
patent: 6762244 (2004-07-01), Rajagopalan et al.
patent: 57037459 (1982-03-01), None
patent: 06091019 (1994-05-01), None
patent: WO 00 43077 (2000-07-01), None
DuPont Hytrel Product and Properties Guide pp. 1-12.
Encyclopedia of Polymer Science and Engineering vol. 12; pp. 417-419.
Ladd Derek A.
Rajagopalan Murali
Acushnet Company
Bingham & McCutchen LLP
Buttner David J.
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