Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Reexamination Certificate
2005-06-29
2009-02-10
Mulcahy, Peter D (Department: 1796)
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
C524S099000, C524S102000
Reexamination Certificate
active
07488433
ABSTRACT:
Synergistic stabilizer compositions are employed to stabilize halogen-containing vinyl polymers from, for example, degradation and discoloration. The stabilizer compositions comprise a zinc compound, a dihydropyridine or polydihydropyridine, a beta-diketone and a latent mercaptan.
REFERENCES:
patent: 3001970 (1961-09-01), Ebel
patent: 4209439 (1980-06-01), Pigerol et al.
patent: 4427816 (1984-01-01), Aoki et al.
patent: 5015777 (1991-05-01), Chisolm et al.
patent: 5102933 (1992-04-01), Bae et al.
patent: 5278218 (1994-01-01), Carette et al.
patent: 5814691 (1998-09-01), Kuhn et al.
patent: 5925696 (1999-07-01), Wehner et al.
patent: 6136900 (2000-10-01), Kuhn et al.
patent: 6194494 (2001-02-01), Wehner et al.
patent: 6537466 (2003-03-01), Duvall et al.
patent: 6897254 (2005-05-01), Adams et al.
patent: 2004/0204522 (2004-10-01), Austen et al.
patent: 0070092 (1983-01-01), None
patent: 0362012 (1990-04-01), None
patent: 0 742 259 (1996-11-01), None
patent: 0 890 608 (1999-01-01), None
patent: 0 890 608 (1999-04-01), None
patent: 0 945 485 (1999-09-01), None
patent: 1 201 706 (2002-02-01), None
patent: 1 318 169 (2003-06-01), None
patent: WO/0206392 (2002-01-01), None
Garrigues C., et al.,Thermal dehydrochorination and stabilization of poly(vinylchloride)in solution. Part XI Snynergism between dialkyltin thioglycolates and organic costabilizers, Polymer Degradation and Stability 45 (1994) 103-110, Elsevier Science Limited.
Guyot A., et al,Thermal Dehydrochorination and Stabilisation of Poly(vinylchloride)in Solution. Part VII- Quaternary Stabiliser System with Two Metal Soaps, Dihydropyridine and β- Diketone, Polymer Degradation and Stability 32 (1991) 321-329, Elsevier Science Limited.
Falk Stephen T.
Mulcahy Peter D
Rohm and Haas Company
Stauss Karl E.
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