Coating processes – Immersion or partial immersion – Running lengths
Patent
1987-02-03
1988-04-26
Beck, Shrive P.
Coating processes
Immersion or partial immersion
Running lengths
4274301, B05D 120
Patent
active
047403969
ABSTRACT:
A process for forming a built-up thin film of a high polymer which is inherently difficult of film formation by the Langmuir-Blodgett process. A high polymer is modified so as to enable film formation by the Langmuir-Blodgett process by introducing a substituent group for imparting a hydrophobic nature to a recurring unit of the high polymer, and the thus-modified high polymer is mixed with a known Langmuir-Blodgett film compound for film formation by the Langmuir-Blodgett process. A high polymer used in the present invention includes linear recurring units each of which is composed of an at least divalent first organic group R.sub.1 having at least two carbon atoms and an at least divalent second organic group R.sub.2 having at least two carbon atoms, the first organic group R.sub.1 and the second organic group R.sub.2 being connected with each other by a divalent bonding group; and at least one hydrocarbon-containing group R.sub.3 which have 10 to 30 carbon atoms and optionally contain a substituent group, and which is covalently bonded to the same recurring units.
REFERENCES:
patent: 4632800 (1986-12-01), Barraud et al.
patent: 4643125 (1987-02-01), Barlow et al.
European Search Report from EP 87 10 1419.
Thin Solid Films, vol. 134, 1985, pp. 67-74, Elsevier Sequoia, NL; S. Hirota et al.; "Polymerization and Optical Properties of Mixed LB Films of Beta-Parinaric Acid and Stearic Acid".
Awaji Hiroshi
Uekita Masakazu
Beck Shrive P.
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
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