US 2021/0071031 A1 · AN AQUEOUS ANTIFOGGING RESIN, AQUEOUS ANTIFOGGING COATING COMPOSITION AND PREPARATION METHOD THEREOF

Abstract

The present invention discloses an aqueous antifogging resin, introducing a molecular segment and a functional group with good hydrophilicity and hygroscopicity, which impart excellent antifogging performance, coating strength and transparent flow appearance to the aqueous antifogging resin and the cured coating has a water contact angle of up to 1˜10°. The present invention further discloses a coating composition including the aqueous antifogging resin, and the cured coating of the coating composition has good antifogging, wear-resistant, water-resistant, chemical resistant, stain-resistant and UV-resistant performance, and excellent adhesion to a substrate; and the coating is firm at the same time, and has excellent film-forming strength and flexual endurance. The coating composition can be used for antifogging surface treatment of the window of mobile phone, PC or PMMA transparent materials, automotive glass and bathroom mirrors and has good long-term stability.

Claims12

Dependent claims

An aqueous antifogging resin, wherein the aqueous antifogging resin has the following structural formula:

wherein m, s, n, p, q, a, b and c represent a degree of polymerization of each monomer wherein the degree of polymerization of each monomer is a number-average molecular weight of the aqueous antifogging resin from 5,000 to 100,000, and all of m, s, n, p, q, a, b, and c are positive integers;
wherein a diisocyanate compound is formed by a R1 and an isocyanate group and the R1 is a parent structure of the diisocyanate compound;
wherein R2 is a compound including both a hydroxyl group (OH) and a carboxyl group (COOH);
wherein each of R3, R4, R5, and R6 is selected from one of H and CH3;
and
wherein R7 is one of —O−N+H(C2H5OH)3, —O−N+H(C2H5)3, —O−K+ and —O−Na+.

3 more elements

Dependencies are inferred from the claim text.

An aqueous antifogging resin, aqueous antifogging coating composition and preparation method thereof

Life of this patent

An aqueous antifogging resin, aqueous antifogging coating composition and preparation method thereof

Life of this patent

Abstract

Claims12