Plant husbandry – Cover – shade – or screen – For fruit
Patent
1991-01-09
1992-09-01
Scherbel, David A.
Plant husbandry
Cover, shade, or screen
For fruit
A01G 1712
Patent
active
051428172
ABSTRACT:
The invention provides a protective wrap for plants, such as trees, shrubs or flowering plants, comprising a flexible tape backing composed of a water insoluble polymeric sheet suited for being wound into a roll or dispensed as cut sheets. To the backing is applied a homogeneous, hydrophilic, stable matrix. The matrix is hydratable by atmospheric moisture, has a bonding surface which conforms to the contours of the plant, and is sufficiently tacky to hold the tape in place after being wrapped around the plant. The matrix includes a) a liquid phase comprising a non-aqueous polar organic water miscible liquid for plasticizing the matrix, b) a water soluble or water swellable hydrophilic film-forming polymer uniformly admixed with said liquid to form a flexible matrix, and c) a biologically active composition dispersed in the matrix. The matrix serves as a reservoir which is easily hydrated and will swell in a humid environment for carrying the biologically active protective composition from the reservoir toward the surface of the wrap where it can be released to the environment so as to provide controlled release of the protective agency for guarding the plant.
REFERENCES:
patent: 2593781 (1952-04-01), Meis
patent: 2947111 (1960-08-01), Zobrist
patent: 3068087 (1962-12-01), Davis
patent: 3333361 (1967-08-01), Manak
patent: 3592910 (1971-07-01), Clark
patent: 3864114 (1975-02-01), Green
patent: 4299818 (1981-11-01), Vite
patent: 4734281 (1988-03-01), Yamamoto
patent: 4766695 (1988-08-01), Harlow
Harmon James V.
Lec Tec Corporation
Scherbel David A.
Van Patton Michele A.
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