Magnesium hydroxide-based flame retardant compositions made...

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

C524S436000, C528S499000, C423S164000, C423S635000, C423S636000

Reexamination Certificate

active

08067494

ABSTRACT:
Magnesium oxide (MgO) compounded into a polymer can subsequently be hydrated in-situ within the polymer to form magnesium hydroxide. In the case of silane-based or peroxide-based crosslinkable resins, the MgO hydration and polymer crosslinking can be done in a single process step, or in sequential steps. In the case of non-crosslinkable compounds, hydration can be carried out after compounding (no crosslinking step). In all cases, steam CV, sauna, or hot water bath are options for hydration. This approach enables preparation of polymer compounds that are flame retarded with metal hydrates yet free of the traditional limitations posed by shelf instability, extrusion scorch, undesired dehydration, and processing temperature limitations posed by metal hydrates.

REFERENCES:
patent: 3225018 (1965-12-01), Zutty
patent: 3646155 (1972-02-01), Scott
patent: 4353997 (1982-10-01), Keogh
patent: 4451610 (1984-05-01), Collister
patent: 4574133 (1986-03-01), Umpleby
patent: 4868053 (1989-09-01), Ohm et al.
patent: 5073319 (1991-12-01), Sterzel
patent: 5631045 (1997-05-01), Yaniv
patent: 6232377 (2001-05-01), Hayashi et al.
patent: 6238727 (2001-05-01), Takemoto et al.
patent: 6331597 (2001-12-01), Drumright et al.
patent: 6339189 (2002-01-01), Caimi
patent: 6420485 (2002-07-01), Suzuki et al.
patent: 6787607 (2004-09-01), Sahnoune et al.
patent: 6809129 (2004-10-01), Abu-Isa
patent: 7686986 (2010-03-01), Zhou et al.
patent: 2003/0139492 (2003-07-01), Abu-Isa
patent: 2009/0258993 (2009-10-01), Steinmeyer et al.
patent: 0364717 (1990-04-01), None
patent: 0393959 (1990-10-01), None
patent: 0568488 (1993-11-01), None
patent: 0700962 (1996-03-01), None
patent: 1063199 (2000-12-01), None
patent: 2424898 (2006-10-01), None
patent: 11079736 (1999-03-01), None
patent: 2003239135 (2003-08-01), None
patent: 2006026256 (2006-03-01), None
patent: 2007097795 (2007-08-01), None
Derwent Abstract for JP 11079736 A (Derwent Acc No. 1999-261212).
Machine translated English equivalent of JP 2003239135 A (Aug. 2003, 6 pages).

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