Compositions – Humidostatic – water removive – bindive – or emissive
Reexamination Certificate
2003-02-24
2003-11-18
Anthony, Joseph D. (Department: 1714)
Compositions
Humidostatic, water removive, bindive, or emissive
C252S184000, C252S190000, C252S192000, C423S210000, C206S204000, C206S000500, C206S000600, C428S480000, C428S035200
Reexamination Certificate
active
06649086
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The present invention relates to improved water vapor adsorption and water retaining compositions.
By way of background, there are situations wherein products must be protected from moisture in environments wherein there are wide swings in temperature and relative humidity.
BRIEF SUMMARY OF THE INVENTION
It is one object of the present invention to provide improved water vapor adsorption and water retaining compositions which will operate well under conditions of wide swings in temperature and relative humidity.
Another object of the present invention is to provide improved water vapor adsorption and water retaining compositions which will adsorb water vapor and will retain the adsorbed water without appreciably increasing the volume of the composition.
A further object of the present invention is to provide improved water vapor adsorption and water retaining compositions containing water retaining material which will hold a high multiple of its weight of water.
Another object of the present invention is to provide an improved container for a water vapor adsorbing and water retaining composition. Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to a water vapor adsorption and water retaining composition comprising particulate calcium chloride and particulate vermiculite.
The present invention also relates to a water vapor adsorbing and water retaining composition comprising calcium chloride, vermiculite and clay.
The present invention also relates to a flexible container comprising a side of spun-bonded polyethylene and a side of extrusion coated polyethylene on polyester.
The present invention also relates to a water vapor adsorption and water retaining composition comprising particulate calcium chloride and particulate vermiculite in a flexible container having a side of spun-bonded polyethylene and a side of extrusion coated polyethylene on polyester.
The present invention also relates to a water vapor absorbing and water retaining composition comprising particulate calcium chloride, vermiculite and clay in a flexible container comprising a side of spun-bonded polyethylene and a side of extrusion coated polyethylene on polyester.
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In 1982 Multisorb Technologies, Inc. sold a permeable packet containing a palladium oxide oxygen absorber. The packet consisted of two sides. One side was spun-bonded polyester. The other side was a laminate of polyethylene bonded to MYLAR.
The outer edges of the spun-bonded polyester were heat-sealed to the outer edges of the polyethylene side of the laminate.
Payne David S.
Powers Thomas H.
Anthony Joseph D.
Gastel Joseph P.
Multisorb Technologies, Inc.
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