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US 11,692,055 B2Granted
Composition for forming polyurethane film and article comprising coating layer derived from the same
AssigneeKorea Institute of Industrial Technology
InventorsSung Woo Hong, Sung Koo Lee, Pyong Hwa Hong, Gyeong Min Moon, Jin Sil Kim
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Abstract
The present disclosure relates to a composition for forming a polyurethane film, a polyurethane film derived from the composition and an article comprising a substrate and the polyurethane film, and the composition for forming a polyurethane film comprises an OH group-containing polymer; a curing agent; and an amphoteric ion-based polymer.
Claims8
A composition for forming a polyurethane film, comprising:
- an OH group-containing polymer;
- a curing agent;
- and an amphoteric ion-based polymer, wherein the curing agent is an isocyanate-based compound,
- wherein the amphoteric ion-based polymer contains an OH group, wherein the OH group-containing polymer is not an amphoteric ion-based polymer,
- wherein the amphoteric ion-based polymer is represented by the following Formula 1:
- where each of a, b, c, d, p, q, r, s, x, y, z, a′, b′, c′, d′, p′, q′, r′, s′ is an integer of 0 or greater,
- the sum of a+b+c+d is an integer of 1 or greater, the sum of p+q+r+s is an integer of 1 or greater, and the sum of y+z is an integer of 1 or greater,
- each of the y′ and z′ is independently an integer of 1 or greater, and
- Q1, Q2, Q3, and Q4 is independently OH, NH2, COOH, SH, or NCO, and at least one of Q1, Q2, Q3, and Q4 is OH.
6 more elements
Dependencies are inferred from the claim text.