Coating film having thinly-spreading and irregularity-conforming properties, and structural base having such film
AssigneeNissan Chemical Corporation
InventorsYoshiomi Hiroi, Natsuki Abe, Taito Nishino
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Abstract
The invention provides a structural base that includes a coating film on at least a portion of the surface thereof, the coating film having a difference between the maximum film thickness and the minimum film thickness of not more than 1000 Å. A method of the invention produces such structural bases. The coating film includes a copolymer including a repeating unit containing a group represented by formula (a), and a repeating unit containing a group represented by formula (b): wherein Ua1, Ua2, Ub1, Ub2, Ub3 and An− are as defined herein.
Claims8
A method for producing a cell culture vessel for forming cell aggregates, comprising a step of applying a coating agent onto a cell culture vessel including a structural portion composed of at least two flat faces adjacent to one another, the angle θ between each two of the flat faces being 70<θ<110°, in one operation to form a surface coated with a coating film thereby forming a coated surface of the cell culture vessel, the coated surface having a difference between the maximum film thickness and the minimum film thickness of not more than 350 Å and a thickness of 10 to 400 Å,
- the coating agent comprising a copolymer including a repeating unit containing a group represented by the following formula (a), and a repeating unit containing a group represented by the following formula (b):
- wherein Ua1, Ua2, Ub1, Ub2 and Ub3 are each independently a hydrogen atom or a C1-5 linear or branched alkyl group, and An is an anion selected from the group consisting of halide ion, inorganic acid ion, hydroxide ion and isothiocyanate ion.
A method for forming a coating film on a surface of a cell culture vessel, comprising only steps of applying a coating agent onto the surface of the cell culture vessel and drying it, the coating film having a difference between the maximum film thickness and the minimum film thickness of not more than 350 Å and a film thickness of 10 to 400 Å at all coated portions of the surface of the cell culture vessel, wherein the cell culture vessel includes a structural portion composed of at least two flat faces adjacent to one another, the angle θ between each two of the flat faces being 70<θ<110°,
- the coating agent comprising a copolymer including a repeating unit containing a group represented by the following formula (a), and a repeating unit containing a group represented by the following formula (b):
- wherein Ua1, Ua2, Ub1, Ub2 and Ub3 are each independently a hydrogen atom or a C1-5 linear or branched alkyl group, and An is an anion selected from the group consisting of halide ion, inorganic acid ion, hydroxide ion and isothiocyanate ion.
Dependencies are inferred from the claim text.