Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1989-11-17
1992-01-07
Beck, Shrive
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 541, 427 55, 427348, 427371, 4273884, 4274342, B05D 306
Patent
active
050790340
ABSTRACT:
A method of preparation of an absorbent composite in which an aqueous solution containing a water-soluble radical polymerization initiator and a water-soluble ethylenically unsaturated monomer which can be converted into an absorbent polymer by polymerization is applied to a substrate, and the monomer is polymerized while the substrate to which the aqueous solution is applied is, on both the sides, held in contact with polymerization-inert surfaces facing each other. A continuous manufacturing method includes the sequential steps of continuously passing a substrate through (1) a region applying to the substrate an aqueous solution containing a water-soluble radical polymerization initiator and a water-soluble ethylenically unsaturated monomer which can be converted into an absorbent polymer by polymerization, and (2) a region of polymerizing the monomer while maintaining the substrate, on both the sides, in contact with polymerization-inert surfaces facing each other.
REFERENCES:
patent: 4294782 (1981-10-01), Froehlig
patent: 4656232 (1987-04-01), Nakaki et al.
patent: 4883716 (1989-11-01), Effenberger et al.
patent: 4973632 (1970-11-01), Nagasuna et al.
Harada Nobuyuki
Kimura Kazumasa
Miyake Koji
Shimomura Tadao
Beck Shrive
Nippon Shokubai Kagaku Kogyo & Co., Ltd.
Utech Benjamin L.
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