Stock material or miscellaneous articles – Sheet – web – or layer weakened to permit separation through...
Patent
1985-01-24
1987-04-28
Hess, Bruce H.
Stock material or miscellaneous articles
Sheet, web, or layer weakened to permit separation through...
424401, 424447, 427171, 4283215, 428323, 428327, 4284022, 42840221, 42840222, 42840224, 428905, A61L 904, B01J 1300, D01F 102, D04H 104
Patent
active
046613889
ABSTRACT:
Microencapsulated materials are released by removing individual elements from a pad of sheets bonded by adhesive layers containing capsules.
REFERENCES:
patent: 4186743 (1980-02-01), Steiger
patent: 4487801 (1984-12-01), Turnbull et al.
patent: 4528226 (1985-07-01), Sweeny
Hess Bruce H.
Litman Mark A.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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