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
2005-01-05
2008-11-11
Mulcahy, Peter D. (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...
C524S500000, C524S544000, C524S545000, C524S546000, C525S200000, C525S276000
Reexamination Certificate
active
07449524
ABSTRACT:
A curable fluorocarbon elastomer is dynamically cured in the presence of a major amount of a non-curing thermoplastic material and a minor amount of a second fluorocarbon elastomer that does not cure under the dynamic vulcanization conditions. The non-curing elastomer is preferably present at from 1 to 20 parts based on 100 parts of the curing fluorocarbon elastomer. Processable rubber compositions comprise a continuous phase of a thermoplastic material, particles of a cured fluorocarbon elastomer dispersed in the continuous phase, and an uncured fluorocarbon elastomer at a level of 10 parts or less per 100 parts of the cured fluorocarbon elastomer. Shaped articles such as gaskets and seals are produced by thermoplastic processing of the processable rubber compositions.
REFERENCES:
patent: 2476884 (1949-07-01), Maynard
patent: 3037954 (1962-06-01), Gessler et al.
patent: 3538028 (1970-11-01), Morgan
patent: 3580889 (1971-05-01), Barney et al.
patent: 3787341 (1974-01-01), Aron
patent: 3853811 (1974-12-01), Chandrasekaran
patent: 3884877 (1975-05-01), Kolb
patent: 4035565 (1977-07-01), Apotheker et al.
patent: 4094949 (1978-06-01), Yokokawa et al.
patent: 4287320 (1981-09-01), Kolb
patent: 4311628 (1982-01-01), Abdou-Sabet et al.
patent: 4328140 (1982-05-01), Singletary et al.
patent: 4419499 (1983-12-01), Coran et al.
patent: 4450263 (1984-05-01), West
patent: 4451542 (1984-05-01), Ishida et al.
patent: 4491536 (1985-01-01), Tomoda
patent: 4530881 (1985-07-01), Santoso et al.
patent: 4572516 (1986-02-01), Symons et al.
patent: 4624978 (1986-11-01), Frayer
patent: 4656228 (1987-04-01), Richter et al.
patent: 4696976 (1987-09-01), Ellerbe, III et al.
patent: 4696989 (1987-09-01), Oka et al.
patent: 4696998 (1987-09-01), Brunelle et al.
patent: 4713418 (1987-12-01), Logothetis et al.
patent: 4787991 (1988-11-01), Morozumi et al.
patent: 5006594 (1991-04-01), Rees
patent: 5095072 (1992-03-01), Kobayashi et al.
patent: 5108780 (1992-04-01), Pitt et al.
patent: 5206293 (1993-04-01), Sakai et al.
patent: 5219931 (1993-06-01), Siol et al.
patent: 5331040 (1994-07-01), Lee
patent: 5354811 (1994-10-01), Kamiya et al.
patent: 5371143 (1994-12-01), Novak et al.
patent: 5384374 (1995-01-01), Guerra et al.
patent: 5397832 (1995-03-01), Ellul
patent: 5459202 (1995-10-01), Martinez et al.
patent: 5548028 (1996-08-01), Tabb
patent: 5585152 (1996-12-01), Tamura et al.
patent: 5589526 (1996-12-01), Sienel et al.
patent: 5639810 (1997-06-01), Smith, III et al.
patent: 5700866 (1997-12-01), Tabb
patent: 5723544 (1998-03-01), Lee
patent: 5792348 (1998-08-01), Eisinga
patent: 5910544 (1999-06-01), Ozawa et al.
patent: 5962589 (1999-10-01), Matsumoto et al.
patent: 6048939 (2000-04-01), Priester
patent: 6054537 (2000-04-01), Shimizu et al.
patent: 6066697 (2000-05-01), Coran et al.
patent: 6079465 (2000-06-01), Takeyama et al.
patent: 6114441 (2000-09-01), Spohn et al.
patent: 6147158 (2000-11-01), Chmielewski
patent: 6162385 (2000-12-01), Grosse-Puppendahl et al.
patent: 6310141 (2001-10-01), Chen et al.
patent: 6312639 (2001-11-01), Ertle et al.
patent: 6407174 (2002-06-01), Ouhadi
patent: 6410630 (2002-06-01), Hoover et al.
patent: 6429249 (2002-08-01), Chen et al.
patent: 6437030 (2002-08-01), Coran et al.
patent: 6500374 (2002-12-01), Akioka et al.
patent: 6624251 (2003-09-01), Chmielewski
patent: 6649704 (2003-11-01), Brewer et al.
patent: 6656831 (2003-12-01), Lee et al.
patent: 6663966 (2003-12-01), Mhetar
patent: 6872325 (2005-03-01), Bandyopadhyay et al.
patent: 7022769 (2006-04-01), Park
patent: 7029750 (2006-04-01), Takei et al.
patent: 7098270 (2006-08-01), Hochgesang et al.
patent: 7135527 (2006-11-01), Park
patent: 2002/0099142 (2002-07-01), Faulkner
patent: 2002/0113066 (2002-08-01), Stark et al.
patent: 2002/0122928 (2002-09-01), Botrie et al.
patent: 2002/0198320 (2002-12-01), Chmielewski et al.
patent: 2003/0026995 (2003-02-01), Duchesne et al.
patent: 2003/0138655 (2003-07-01), Watanabe et al.
patent: 2003/0144409 (2003-07-01), Kassa et al.
patent: 2003/0166780 (2003-09-01), Shimizu et al.
patent: 2004/0183702 (2004-09-01), Nachtigal et al.
patent: 2004/0260023 (2004-12-01), Park et al.
patent: 2005/0014900 (2005-01-01), Park
patent: 2005/0148183 (2005-07-01), Shiro et al.
patent: 2005/0155690 (2005-07-01), Park
patent: 2005/0165168 (2005-07-01), Park
patent: 2005/0167928 (2005-08-01), Park et al.
patent: 2005/0171282 (2005-08-01), Park
patent: 2005/0222337 (2005-10-01), Park
patent: 2005/0272872 (2005-12-01), Park
patent: 2005/0275565 (2005-12-01), Nachtigal et al.
patent: 2005/0281973 (2005-12-01), Park
patent: 2005/0288434 (2005-12-01), Sugiura et al.
patent: 2006/0003127 (2006-01-01), Park et al.
patent: 2006/0004126 (2006-01-01), Park et al.
patent: 2006/0004142 (2006-01-01), Park et al.
patent: 2006/0124889 (2006-06-01), Park et al.
patent: 2006/0142467 (2006-06-01), Park
patent: 2006/0142491 (2006-06-01), Park
patent: 2006/0142492 (2006-06-01), Park
patent: 2006/0290070 (2006-12-01), Park
patent: 2007/0004862 (2007-01-01), Park et al.
patent: 2007/0004865 (2007-01-01), Park
patent: 2007/0044906 (2007-03-01), Park
patent: 2007/0055020 (2007-03-01), Park
patent: 2475263 (2003-09-01), None
patent: 2513789 (2004-08-01), None
patent: 0132583 (1985-02-01), None
patent: 0148719 (1985-07-01), None
patent: 0239707 (1987-10-01), None
patent: 0 168 020 (1989-10-01), None
patent: 422960 (1991-04-01), None
patent: 0432911 (1991-06-01), None
patent: 432911 (1991-06-01), None
patent: 439734 (1991-08-01), None
patent: 0254307 (1991-12-01), None
patent: 0304843 (1993-03-01), None
patent: 0566313 (1993-10-01), None
patent: 0681113 (1995-11-01), None
patent: 0714944 (1996-06-01), None
patent: 1209203 (2002-05-01), None
patent: 58-032655 (1983-02-01), None
patent: 62-011767 (1987-01-01), None
patent: 62-236841 (1987-10-01), None
patent: 05-156090 (1993-06-01), None
patent: 05-186606 (1993-07-01), None
patent: 06-016949 (1994-01-01), None
patent: 11-140269 (1999-05-01), None
patent: 2000-079928 (2000-03-01), None
patent: 2001-336679 (2001-12-01), None
patent: WO-96/00761 (1996-01-01), None
patent: WO 00/11073 (2000-03-01), None
patent: WO 01/48077 (2001-07-01), None
patent: WO 01/98405 (2001-12-01), None
patent: WO-01/98405 (2001-12-01), None
“Polyurethanes” Encyclopedia of Polymer Science & Engineering, vol. 13, Second Edition (pp. 274-278).
Webpage: “Dyneon™ Fluorothermoplastics” Accessed from 3M Manufacturing and Industrial and Downloaded May 8, 2003. (2 pages).
Material Safety Data Sheet “DuPont™ TPV 60A01 and 80A01”, C.S. Wong, (Sep. 18, 2001). (9 pages).
Kim, K. et al. “Mold Release Additive Effects on Chlorine and Fluorine Rubber Compound” Struktol Company of America Paper No. 7, Presented at IRMC 2004 Meeting. Apr. 27-28, 2004. (18 pages).
Solvay Solexis: “Product Data Sheet: Tecnoflon FPA 1” available at www.solvaysolexis.com. Copyright 2003. (2 pages).
Schmiegel, Walter W. “A Review of Recent Progress in the Design and Reactions of Base-Resistant Fluoroelastomers.” IRC, Jul. 2003.
“AFLAS™ The Fluoroelastomer”, Asahi Glass Company, Product Information, pp. 1-8, Apr. 11, 2003.
“Fluorine-Containing Polymers”, Encyclopedia of Polymer Science & Engineering, vol. 7, 1987, Second Edition, pp. 256-267.
“Viton® Fluoroelasotmer, A Product of DuPont Dow Elastomers”, Technical Information, DuPont Dow Elastomers, Copyright 1988.
Michael J. Moore, “Silanes as Rubber-to-Metal Bonding Agents”, 160th Meeting of the Rubber Division, American Chemical Society, Cleveland Ohio, Paper No. 105, pp. 1-17, 2001.
“Polyurethanes” Encyclopedia of Polymer Science & Engineering, vol. 13, Second Edition (Date Unknown). (pp. 274-278).
Viton® Fluoroelastomer: Viton Extreme ETP-600S Technical Information (Formerly designated VTR-8710), DuPont Dow Elastomers (Date Unknown). (6 pages).
DuPont “Grades for Customer Evaluation”—TPV 60A and TPV 80A. (3 pages), year 2003.
Sasol: Sasol Olefins and Surfactant
Park Edward Hosung
Walker Francis Joseph
Freudenberg-NOK General Partnership
Harness & Dickey & Pierce P.L.C.
Hu Henry
Mulcahy Peter D.
Wangerow Ronald W.
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