US 12,269,947 B2
Multi-layered structures and uses thereof
Yihua Chang, Portland, OR (US); and Richard L. Watkins, Portland, OR (US)
Assigned to NIKE, Inc., Beaverton, OR (US)
Filed by NIKE, Inc., Beaverton, OR (US)
Filed on May 4, 2023, as Appl. No. 18/312,171.
Application 18/312,171 is a continuation of application No. 16/534,261, filed on Aug. 7, 2019, abandoned.
Claims priority of provisional application 62/730,651, filed on Sep. 13, 2018.
Prior Publication US 2023/0272215 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 75/14 (2006.01); B32B 25/04 (2006.01); B60C 1/00 (2006.01); C08L 21/00 (2006.01)
CPC C08L 75/14 (2013.01) [B32B 25/042 (2013.01); B60C 1/00 (2013.01); C08L 21/00 (2013.01); B32B 2307/7242 (2013.01); B32B 2605/00 (2013.01); B60C 2001/0083 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of making a vulcanized article, the method comprising:
placing a first cap layer of a multi-layered structure in direct contact with a layer of uncured rubber to form a layered article, wherein the first cap layer has a cap layer first side and an opposing cap layer second side, and the cap layer second side is in direct contact with the layer of uncured rubber; and
exposing the layered article to a condition effective to vulcanize the layer of uncured cured rubber in direct contact with the cap layer, thereby fully curing the layer of uncured rubber into a layer of cured rubber and bonding the multi-layered structure to the layer of cured rubber, producing the vulcanized article;
wherein the multi-layered structure comprises the first cap layer and a core layer, wherein the cap layer first side is adjacent with a first side of the core layer, and the core layer has a gas transmission rate of about 0.05 to 0.1 cc/(m2 24 hr atm) for N2 measured at 23 degrees Celsius and 0 percent relative humidity;
wherein the first cap layer comprises a cap layer material, the cap layer material comprising at least one polydiene polyol-based polyurethane, an uncured rubber compound, and a curing package;
the uncured rubber compound of the cap layer material includes less than 5 weight percent of volatile compounds, the volatile compounds are volatile compounds released from the uncured rubber compound when the uncured rubber compound is heated to a temperature of about 200 degrees Celsius, and the weight percent of volatile compounds in the uncured rubber compound is based on a total amount of the uncured rubber compound present in the cap layer material,
the curing package of the cap layer material comprises a sulfur-based or peroxide-based curing agent; and
the cap layer material comprises about 50 weight percent to about 80 weight percent of the at least one polydiene polyol-based polyurethane, about 25 weight percent to about 50 weight percent of the uncured rubber compound, and up to 2 weight percent of the curing package.