| 摘要 |
In order to provide a rubber composition having high transparency, toughness and heat-resisting property, the present invention can provide a composition comprising a neodymium-catalyzed isoprene rubber (IR) component; and a rubber polymer (RB) component selected from the group consisting of BR, 1,2-polybutadiene rubber, and SBR, wherein the amount of IR is from about 5 to 95 mass parts with the proviso that the total amount of IR and RB is 100 mass parts, wherein the composition is substantially free of silica, wherein the composition has haze of less than about 20%, and wherein the composition has Type A Durometer hardness (0 sec) of about 30 or more. |
| 主权项 |
1. A transparent, crosslinked rubber composition, comprising:
a neodymium-catalyzed isoprene rubber (IR) component; and a rubber polymer component selected from the group consisting of butadiene rubber (BR), 1,2-polybutadiene rubber, and styrene butadiene rubber (SBR), wherein the amount of the neodymium-catalyzed isoprene rubber is from about 5 to 95 mass parts, preferably about 10 to 95 mass parts, more preferably about 25 to 95 mass parts, with the proviso that the total amount of the neodymium-catalyzed isoprene rubber and the rubber polymer component is 100 mass parts, wherein the composition is substantially free of silica, wherein the composition has haze of less than about 20%, preferably about 18% or less, more preferably about 15% or less, on 2 mm thick sheet, measured according to JIS K7136, and wherein the composition has Type A Durometer hardness (0 sec) of about 30 or more, preferably about 30 to 70, more preferably about 40 to 70, measured according to JIS K6253. |
