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AssigneesNof Corporation, The University of Tokyo
InventorsKazuhiko Ishihara, Tomozumi Noda, Masaru Matsuda, Satoshi Yamada, Nobuyuki Sakamoto
Estimating the term…
Provided is a lubricity-imparting agent that can impart durable lubricity (in particular, lubricity at the time of wetting) to a substrate. It has been found that a lubricity-imparting agent including a copolymer containing a constitutional unit (A) based on 2-methacryloyloxyethyl phosphorylcholine and a constitutional unit (B) based on a photoreactive functional group-containing monomer, or a copolymer containing a constitutional unit (A) based on 2-methacryloyloxyethyl phosphorylcholine, a constitutional unit (B) based on a photoreactive functional group-containing monomer, and a constitutional unit (C) based on a hydrophobic group-containing monomer can impart durable lubricity to a substrate surface through a simple approach called photoirradiation.
A method of imparting lubricity to a substrate surface, comprising the following steps (1) and (2):
A method of imparting lubricity to a substrate surface, comprising the following steps (1) and (2):
A crosslinked body, which is obtained by irradiating a copolymer having a weight-average molecular weight of from 10,000 to 1,000,000, the copolymer containing 60 mol % to 99 mol % of a 2-methacryloyloxyethyl phosphorylcholine constitutional unit (A) represented by the following formula (1) and 1 mol % to 40 mol % of a photoreactive functional group-containing constitutional unit (B) represented by any one of the following formulae (2), (3), and (6):
A crosslinked body, which is obtained by irradiating a copolymer having a weight-average molecular weight of from 10,000 to 1,000,000, the copolymer containing 60 mol % to 98 mol % of a 2-methacryloyloxyethyl phosphorylcholine constitutional unit (A) represented by the following formula (1), 1 mol % to 39 mol % of a photoreactive functional group-containing constitutional unit (B) represented by any one of the following formulae (2), (3), and (6), and 1 mol % to 30 mol % of a hydrophobic group-containing constitutional unit (C) represented by the following formula (7):
Dependencies are inferred from the claim text.