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
2007-07-31
2007-07-31
Szekely, Peter (Department: 1714)
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...
C524S303000, C524S392000
Reexamination Certificate
active
10848802
ABSTRACT:
Aromatic and aliphatic organic thiol compounds are disclosed which can be utilized to plasticize and/or stabilize halogen-containing polymer compositions, especially poly(vinyl chloride) compositions. Compounds of the present invention are utilized in polymers normally susceptible to deterioration and color change, which typically occurs during processing of the polymer or exposure to certain environments.
REFERENCES:
patent: 2483984 (1949-10-01), Searles, Jr.
patent: 3136740 (1964-06-01), Klemchuk et al.
patent: 3167527 (1965-01-01), Hechenbleikner
patent: 3242133 (1966-03-01), Lindsey
patent: 3445419 (1969-05-01), Vanderlinde
patent: 3503924 (1970-03-01), Pollock et al.
patent: 3507827 (1970-04-01), Pollock et al.
patent: 3585038 (1971-06-01), Cescon et al.
patent: 3652733 (1972-03-01), Davenport
patent: 3734753 (1973-05-01), Greco et al.
patent: 3875109 (1975-04-01), Bridgland et al.
patent: 3917553 (1975-11-01), Thompson
patent: 3919359 (1975-11-01), Szabo
patent: 3928285 (1975-12-01), Gough et al.
patent: 3966794 (1976-06-01), Larsen
patent: 3979359 (1976-09-01), Kugele et al.
patent: 4098763 (1978-07-01), Starnes, Jr.
patent: 4132812 (1979-01-01), Eckart
patent: 4198305 (1980-04-01), Okorodudu
patent: 4202806 (1980-05-01), Yoshida et al.
patent: 4264482 (1981-04-01), Homan
patent: 4333987 (1982-06-01), Kwart et al.
patent: 4338226 (1982-07-01), Worschech et al.
patent: 4412897 (1983-11-01), Kornbaum et al.
patent: 4576984 (1986-03-01), Bresser et al.
patent: 4616046 (1986-10-01), Kornbaum et al.
patent: 4625059 (1986-11-01), Shibano et al.
patent: 4711920 (1987-12-01), Kugele et al.
patent: 4849463 (1989-07-01), Kemper
patent: 4873005 (1989-10-01), Hyde
patent: 4948827 (1990-08-01), Christidis
patent: 4963594 (1990-10-01), Gay
patent: 4973619 (1990-11-01), Kemper
patent: 5006436 (1991-04-01), Hung et al.
patent: 5030671 (1991-07-01), Wehner et al.
patent: 5057567 (1991-10-01), Fisch et al.
patent: 5057622 (1991-10-01), Chisholm et al.
patent: 5198486 (1993-03-01), Chisolm et al.
patent: 5216058 (1993-06-01), Visneski
patent: 5294666 (1994-03-01), Okada et al.
patent: 5414030 (1995-05-01), Kotani et al.
patent: 5536767 (1996-07-01), Beckman et al.
patent: 5594088 (1997-01-01), Nagata et al.
patent: 6232380 (2001-05-01), Conroy et al.
patent: 6326518 (2001-12-01), Duvall et al.
patent: 6476183 (2002-11-01), Bakkeren et al.
patent: 32 47 736 (1984-07-01), None
patent: 0 133 130 (1985-02-01), None
patent: 0 205 261 (1986-12-01), None
patent: 0 890 608 (1999-01-01), None
patent: 0 945 484 (1999-09-01), None
patent: 1024270 (1965-01-01), None
patent: 54-53002 (1979-04-01), None
patent: 63-128002 (1988-05-01), None
patent: 63241055 (1988-06-01), None
patent: 01090167 (1989-04-01), None
patent: WO 99/09094 (1999-02-01), None
Abstract from 36 Plastics Manufacturer, vol. 86, 1977 pp. 44-45 entitled “Stabilizers for Chlorine-Containing Resins”.
Stabilization of Poly(vinyl chloride)by Thiols. A Mechanistic Study, vol. 11, No. 2, W. H. Starnes, Jr., I. M. Plitz, D. C. Hische, D. J. Freed, F. C. Schilling, and M. L. Schilling, Bell Laboratories, Murray Hill, New Jersey, pp. 373-382, Mar.-Apr. 1978.
An Alternative Synthesis of Tiopinac, T. Craig Thurber et al., Contribution No. 567, Development Research Laboratory, Institute of Organic Chemistry, Jul.-Aug. 1982, pp. 961-965.
Thermal Stabilization of PVC by “Plasticizer Thiols”, W. H. Starnes, Jr. et al., Departments of Chemistry and Applied Science, Journal of Vinyl & Additive Technology, Dec. 2001, vol. 7, No. 4, pp. 250-253.
Heat Stabilization and Plasticization by “Plasticizer Thiols”, A Remarkable New Class of Nonmetallic Additives for PVC, W. H. Starnes et al., Departments of Chemistry and Applied Science, Polymer Preprints 2001.
Nonmetallic Primary Heat Stabilizers for Poly(vinyl chloride), W. H. Starnes, Jr. et al., Department of Chemistry and Department of Applied Science, Mar. 24-27, 2002, Additives 2002 Conference, pp. 1-7.
The conductive sulfur/carbon mixture cathode. An efficient synthesis of thiophenes and related compounds from acetylenes. Le Guilanton et al. Lab. Electrochim. Org., Univ. Cathol. Quest, Angers 49005, Fr. Tetrahedron Letters (1986) 27 (20) 2261-2.
A Novel Initiation Process for the Nonoxidative Thermal Dehydrochlorination of Poly(vinyl chloride): Apparent Intermediacy of a Cyclic Chloronium Ion by Starnes et al., Polymer Preprints (American Chemical Society, Division of Polymer Chemistry), 21 (2), pp. 138-139, 1980.
Mechanistic Aspects of the Degradation and Stabilisation of Poly(vinyl chloride) by W. H. Starnes, Jr., Developments in Polymer Degradation—3; N. Grassie, Ed,; Applied Science: London, U.K., Chapter 5, pp. 135-171, 1981.
Primary Event in the Thermal Dehydrochlorination of Pristine Poly(vinyl chloride): Intermediacy of a Cyclic Chloronium Ion by Raghavachari, et al., Journal American Chemical Society, vol. 104, pp. 5054-5056, 1982.
Du Bin
Starnes, Jr. William Herbert
Hudak, Shunk & Farine Co. LPA
Szekely Peter
The College of William and Mary
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