Patent ID: 9515213
Filing Date: 2016-12-06
CPC Classification: C08J,C09C,H01L,Y02E

Claim Text:
1. A back protective sheet for a solar cell module comprising: a polyester support that is biaxially stretched and then subjected to a thermal fixation treatment; and a polymer layer arranged to be in contact with at least one surface of the polyester support, wherein the polymer layer contains a binder having at least one functional group selected from a carboxyl group, a hydroxyl group, an amino group, a sulfonic acid group, and a carbonyl group; a pigment; and a crosslinking agent-derived structure, wherein the polyester support contains a polyester, a pigment, and an terminal blocking agent, wherein the polyester support contains the terminal blocking agent in an amount of 0.2% by mass to 0.5% by mass with respect to the polyester support, wherein the pigment in the polyester support is titanium oxide having an Al-treated outermost surface, and wherein the polyester support contains the pigment in an amount of 5% by mass to 15% by mass with respect to the polyester support.