| 摘要 |
<p>A container sealing latex composition is formed from a carboxylated styrene butadiene elastomer wherein the carboxyl groups are preferably provided by methacrylic acid, and the composition is substantially free of active cross linking agent and preferably includes latent cross linking agent and stabiliser such as casein, rosin acid, styrene maleic anhydride copolymer or fatty acid.</p> |
