US 12,404,401 B2
Durable printable label film
Tracy Paolilli, North Kingstown, RI (US); Joshua Cloutier, North Kingstown, RI (US); and Yu Abe, North Kingstown, RI (US)
Assigned to Toray Plastics (America), Inc.
Filed by Toray Plastics (America), Inc., North Kingstown, RI (US)
Filed on Aug. 17, 2022, as Appl. No. 17/889,765.
Claims priority of provisional application 63/234,509, filed on Aug. 18, 2021.
Prior Publication US 2023/0070878 A1, Mar. 9, 2023
Int. Cl. C08L 67/02 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); C08K 3/36 (2006.01); C08L 33/08 (2006.01)
CPC C08L 67/02 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); C08K 3/36 (2013.01); C08L 33/08 (2013.01); B32B 2250/242 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2264/1021 (2020.08); B32B 2307/518 (2013.01); B32B 2307/704 (2013.01); B32B 2307/75 (2013.01); B32B 2519/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A film comprising:
a base layer comprising a biaxially oriented polypropylene (BOPP);
a coating layer comprising a polyester, an acrylic, and a crosslinker; and
a primer;
wherein the film has a haze change, measured according to ASTM D1003, before exposure to boiling water for 30 minutes and after an exposure to boiling water for 30 minutes of 4 units or less;
wherein according to FTIR the film has a first absorbance at a first wavelength of 1380 cm−1 higher than a second absorbance at a second wavelength of 1150 cm−1 and a third absorbance at a third wavelength of a 1450 cm−1 wavelength; and
wherein the third absorbance is higher than a fourth absorbance at a fourth wavelength of 1730 cm−1.