Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1988-01-15
1990-12-25
Springer, David B.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
548494, 546168, 2604055, 260408, 260399, C07C 7922
Patent
active
049800965
ABSTRACT:
Surfactants which are blocked against surfactant action (identified herein as "photolabile blocked surfactants") by a photolabile protective or masking group but which, on exposure to actinic radiation, become unblocked are provided. Coating compositions in which surfactant is formed on irradiation are provided by blending the photolabile blocked surfactant with polymeric film-forming materials.
Compositions containing the photolabile blocked surfactants are useful when employed as protective coatings on various substrates or as the adhesive in a pressure sensitive adhesive tape. Although initially well adhering to a substrate, such compositions may be readily removed from the substrate following exposure of the same to suitable radiation which unblocks the surfactant to permit it to regain its surfactant activity.
REFERENCES:
patent: 3745188 (1973-07-01), Bottorff
patent: 4369244 (1983-01-01), Eian et al.
patent: 4467022 (1984-08-01), Eian et al.
Eian Gilbert L.
Trend John E.
Francis Richard
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Springer David B.
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