Coating processes – Optical element produced – Transparent base
Patent
1979-02-26
1980-09-02
Schor, Kenneth M.
Coating processes
Optical element produced
Transparent base
134 6, 134 42, 252173, 252DIG10, 427163, 427369, B08B 304
Patent
active
042206766
ABSTRACT:
The use of a diluted aqueous extract of oak leaves as a cleaner and plant growth stimulant is described. To provide the extract, dried leaves are preferably boiled in water to extract and disperse natural tannins and waxes from the leaves into the water. The extract is diluted with water for use as a cleaner, particularly for window glass, or for use in stimulating the growth of plants.
REFERENCES:
patent: 144254 (1873-11-01), Burfitt
patent: 203712 (1878-05-01), Daymon
patent: 371775 (1887-10-01), Mast
patent: 388759 (1888-08-01), Cameron
patent: 411320 (1889-09-01), Boogher
patent: 1526501 (1925-02-01), Mullen
patent: 1675227 (1928-06-01), Reeve
patent: 2428187 (1947-09-01), Wegst et al.
patent: 3635797 (1972-01-01), Battistoni et al.
patent: 4094701 (1978-06-01), Fekete
Chem. Abstracts 17:744; Freudenberg et al., (1922).
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