Polymer composite

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

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Details

C524S081000, C524S291000, C524S423000

Reexamination Certificate

active

07579396

ABSTRACT:
A polymer composite comprising a thermoplastic polymer compounded with a phenolic antioxidant, an organo-disulfide antioxidant, and a silver-based antimicrobial agent. The specified combination of antioxidant stabilizers is superior in inhibiting undesirable discoloration of thermoplastic polymers in the presence of compounded silver-based antimicrobial agents. A process of preparing such a composite, comprising compounding the phenolic antioxidant and organo-disulfide antioxidant with the thermoplastic polymer prior to compounding the silver-based antimicrobial agent with the thermoplastic polymer.

REFERENCES:
patent: 2230371 (1941-02-01), Bolton
patent: 4024103 (1977-05-01), Heinrich et al.
patent: 4525410 (1985-06-01), Hagiwara et al.
patent: 4938955 (1990-07-01), Niira et al.
patent: 5064599 (1991-11-01), Ando et al.
patent: 5180402 (1993-01-01), Kubota et al.
patent: 5405644 (1995-04-01), Ohsumi et al.
patent: 5880044 (1999-03-01), Shimiz
patent: 5888526 (1999-03-01), Tsubai et al.
patent: 6015854 (2000-01-01), McCullough, Jr.
patent: 6022946 (2000-02-01), McCullough, Jr.
patent: 6187456 (2001-02-01), Lever
patent: 6197886 (2001-03-01), Chatterjee et al.
patent: 6274519 (2001-08-01), Omori et al.
patent: 6436420 (2002-08-01), Antelman
patent: 6468521 (2002-10-01), Pedersen et al.
patent: 6479144 (2002-11-01), Petrea et al.
patent: 6538056 (2003-03-01), Webster
patent: 6585843 (2003-07-01), Nickell et al.
patent: 6585989 (2003-07-01), Herbst et al.
patent: 6716895 (2004-04-01), Terry
patent: 6726791 (2004-04-01), Oelund et al.
patent: 6770693 (2004-08-01), Stein et al.
patent: 6774170 (2004-08-01), Webster
patent: 6881744 (2005-04-01), Redkar et al.
patent: 7041723 (2006-05-01), Kimura
patent: 2001/0034419 (2001-10-01), Kanayama et al.
patent: 2003/0225356 (2003-12-01), Kulichikhin et al.
patent: 2005/0131100 (2005-06-01), Herbst et al.
patent: 617194 (1962-05-01), None
patent: 1210855 (1966-02-01), None
patent: 1 190 622 (2002-03-01), None
patent: 62-270642 (1987-11-01), None
patent: 03-271208 (1991-12-01), None
patent: 04-114038 (1992-04-01), None
patent: 7-233279 (1995-09-01), None
patent: 8-026921 (1996-01-01), None
patent: 10-120833 (1998-05-01), None
patent: 28-41115 (1998-12-01), None
patent: WO 2004/033545 (2004-04-01), None
J.A. Howard; “Autoxidation And Antioxidants, Basic Principles And New Developments”; Rubber Chemistry And Technology; 1974; pp. 988-989.
A. Goetz et al; “The Oligodynamic Effect Of Silver”; Silver In Industry; 1940; pp. 401-429.
I.B. Roamns; “Oligodynamic Metals”; Disinfection, Sterilization And Preservation; 1968; pp. 372-400.
Stewart C. Harvey; “Antiseptics And Disinfectants; Fungicides; Ectoparasiticides” The Pharmacological Basis Of Therapeutics; pp. 964-987, (1980).
Stewart C. Harvey; “Heavy Metals” The Pharmacological Basis Of Therapeutics; pp. 924-945, (1975).

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