Antifogging coating composition and article coated therewith

Abstract

An antifogging paint composition for forming an antifogging coating film without generation of the running water trace. The antifogging paint composition contains a block or grafted copolymer comprising a hydrophilic polymer part formed from a vinyl monomer having a cross-linking functional group and a water-soluble vinyl monomer, and a hydrophobic polymer part formed from a non water-soluble vinyl monomer, and an acidic alkyl phosphate.

Description

technical field

[0001] The invention relates to an anti-fog coating composition. More specifically, the present invention relates to an antifog coating composition for forming an antifog coating film on the surface of a transparent plastic material or glass material, and a coating substance having the formed coating film. Background technique

[0002] Conventional thermosetting antifog compositions using random copolymers do not have sufficient adhesion properties to plastic or glass substrates. The present inventors disclosed a thermosetting antifogging agent composition having enhanced adhesion properties in Japanese Laid-Open Patent Publication Nos. hei6-212146 and hei6-107967. In the case of forming a coating film with an antifogging agent composition, in order to obtain a hard coating film with good properties, severe process conditions are required: a high temperature of 120° C. or higher and a hardening time of 30 minutes or longer. Sin...