Claims
- 1. A multiple layered bag comprising of a water-soluble plastic material layer and a laminated or pressure adhered biodegradable paper layer affixed to at least a portion of the surface of said water-soluble plastic material, wherein the formula of said water-soluble plastic material has been modified so that the onset of disintegration following exposure to an aqueous environment is delayed for a period in the range of thirty seconds to two hours, wherein a water retardant additive is incorporated into said biodegradable paper layer during manufacture of the biodegradable paper.
- 2. A multiple layered bag comprising of a water-soluble plastic material layer and a laminated or pressure adhered biodegradable paper layer affixed to at least a portion of the surface of said water-soluble plastic material, wherein the formula of said water-soluble plastic material has been modified so that the onset of disintegration following exposure to an aqueous environment is delayed for a period in the range of thirty seconds to two hours, whereby said multiple layered bag is manufactured by spraying said water-soluble plastic material onto a sheet of said biodegradable paper and two said sheets of said biodegradable paper sprayed with said water-soluble plastic material are joined along three perimeter edges of said sheets of said biodegradable paper sprayed with said water-soluble plastic material, such that said joined sheets of said biodegradable paper sprayed with said water-soluble plastic material form a multiple layered bag wherein said biodegradable paper layer is the exterior layer and said water-soluble plastic layer is the interior layer.
- 3. A multiple layered bag comprising: a water-soluble plastic material layer, a water retardant layer affixed to at least a portion of the surface of said water-soluble plastic material, and a laminated or pressure adhered biodegradable paper layer affixed to at least a portion of the surface of said water retardant layer, said water-retardant layer being in a form that disintegrates when said water-soluble layer dissolves.
- 4. A multiple layered bag, as described in claim 3, wherein said water-soluble plastic material is polyvinyl alcohol.
- 5. A multiple layered bag, as described in claim 4, wherein the formula of said polyvinyl alcohol has been modified so that the onset of disintegration following exposure to an aqueous environment is delayed for a period ranging from five minutes to one hour.
- 6. A multiple layered bag, as described in claim 5, wherein said water retardant layer is a layer of silicone.
- 7. A multiple layered bag, as described in claim 5, wherein said water retardant layer is affixed to said water-soluble plastic material by spraying said water retardant layer onto said water-soluble plastic material.
- 8. A multiple layered bag, as described in claim 4, wherein said water retardant layer is a layer of silicone.
- 9. A multiple layered bag, as described in claim 8, wherein said water retardant layer is affixed to said water-soluble plastic material by spraying said water retardant layer onto said water-soluble plastic material.
- 10. A multiple layered bag, as described in claim 4, wherein said water retardant layer is affixed to said water-soluble plastic material by spraying said water retardant layer onto said water-soluble plastic material.
- 11. A multiple layered bag, as described in claim 3, wherein said water retardant layer is a layer of silicone.
- 12. A multiple layered bag, as described in claim 11, wherein said water retardant layer is affixed to said water-soluble plastic material by spraying said water retardant layer onto said water-soluble plastic material.
- 13. A multiple layered bag, as described in claim 3, wherein said water retardant layer is affixed to said water-soluble plastic material by spraying said water retardant layer onto said water-soluble plastic material.
- 14. A multiple layered bag as recited in claim 3 wherein said water-soluble plastic material layer is inside of said water-retardant layer and said paper layer.
- 15. A multiple layered bag comprising: a water-soluble plastic material layer, a water retardant layer affixed to at least a portion of the surface of said water-soluble plastic material, and a laminated or pressure adhered biodegradable paper layer affixed to at least a portion of the surface of said water retardant layer, whereby said multiple layered bag is manufactured by spraying said water retardant layer onto a sheet of said biodegradable paper, said water-soluble plastic material is sprayed onto said water retardant layer, and two said sheets of said biodegradable paper sprayed with said water retardant layer and said water-soluble plastic are joined along three perimeter edges of said sheets of said biodegradable paper sprayed with said water retardant layer and said water-soluble plastic, such that said joined sheets of said biodegradable paper sprayed with said water retardant layer and said water-soluble plastic form a multiple layered bag wherein said biodegradable paper layer is the exterior layer, said water retardant layer is the intermediary layer, and said water-soluble plastic layer is the interior layer.
- 16. A method for using a multiple layered bag, as described in claim 3, for disposal of refuse, said method comprising:(a) inserting a hand inside said multiple layered bag in such a manner that said biodegradable paper layer is on the exterior of said multiple layered bag and said biodegradable paper layer covers at least the palmar surface of the hand; (b) collecting the waste material with the bagged hand in such a manner that said biodegradable paper layer comes in contact with the waste material; (c) everting said multiple layered bag in such a manner that said multiple layered bag is removed from the hand and the waste material is inside of said everted multiple layered bag; and (d) depositing said waste material containing multiple layered bag in a toilet, where the exposed surface of said multiple layered bag dissolves, leaving no substrate on which said water retardant layer can reside, and allowing for hydration of said biodegradable paper layer and exposure of the waste material to the water.
- 17. A multiple layered bag comprising of a water-soluble plastic material layer, a water retardant layer affixed to at least a portion of the surface of said water-soluble plastic material, and a laminated or pressure adhered biodegradable paper layer affixed to at least a portion of the surface of said water retardant layer; said water-soluble plastic material layer being formed of polyvinyl alcohol; the formula of said polyvinyl alcohol having been modified so that the onset of disintegration following exposure to an aqueous environment is delayed for a period ranging from thirty seconds to two hours; said water retardant layer being formed of silicone; and said water retardant layer being affixed to said water-soluble plastic material by spraying said water retardant layer onto said water-soluble plastic material.
Parent Case Info
This application claims the benefit of provisional application Serial No. 60/165,912, filed Nov. 17, 1999.
US Referenced Citations (31)
Foreign Referenced Citations (5)
Number |
Date |
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2187927 |
Sep 1987 |
DE |
4131053 |
Apr 1993 |
DE |
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FR |
2645188 |
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JP |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/165912 |
Nov 1999 |
US |