Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Reexamination Certificate
2005-04-15
2009-12-01
Levy, Neil (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
C043S129000, C424S406000, C424S417000, C424S421000, C424S764000, C424SDIG010, C514S065000, C514S521000, C514S522000, C514S531000, C514S919000
Reexamination Certificate
active
07625578
ABSTRACT:
Volatile impregnated substrates, such as wicks and mats, that can be used in a dispensing device that uses a heat source or otherwise uses active means to promote the release of the volatile material from the substrate are disclosed. The preferred substrate has a structure including sand particles adhered together by a binder to form a network of pores and passages. The binder is selected from thermoset polymeric materials and mixtures thereof. A volatile material is disposed in the pores before the substrate is installed in the dispensing device. The impregnated substrate is positioned in the dispensing device on or near the heat source of the dispensing device. The heat source is activated thereby elevating the temperature of the substrate such that volatile material is released from the pores. In one embodiment, the sand particles comprise silica sand and the binder is a cured novolac resin.
REFERENCES:
patent: 100327 (1870-03-01), Robbins
patent: 3166615 (1965-01-01), Farrell
patent: 3652197 (1972-03-01), Tokarz
patent: 4286754 (1981-09-01), Jones
patent: 4391781 (1983-07-01), van Lit
patent: 5807539 (1998-09-01), Tsukii et al.
patent: 6078728 (2000-06-01), O'Rourke et al.
patent: 6210625 (2001-04-01), Matsushita et al.
patent: 6482365 (2002-11-01), Soller
patent: 2327349 (1999-01-01), None
patent: WO 01/02025 (2001-01-01), None
Material Safety Data Sheet for Resin Coated Silica Sand from Fairmount Minerals, Oct. 26, 1998.
Material Safety Data Sheet for Resin Coated Chromite Sand from Fairmount Minerals, Oct. 29, 1998.
Material Safety Data Sheet for Resin Coated Zircore Sand from Fairmount Minerals, Oct. 29, 1998.
Material Safety Data Sheet for Resin Coated Zircon Sand from Fairmount Minerals, Oct. 29, 1998.
Aulozzi Michael J.
Davis Brian T.
Emmrich Robert R.
Flashinski Stanley J.
Fryan Michael C.
Levy Neil
S. C. Johnson & Son Inc.
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