Puncture sealing agent
AssigneeSumitomo Rubber Industries, Ltd.
InventorsKazuhiko Kawamura, Tamisuke Kimura, Akihiko Hamada, Yoshiaki Miyamoto, Maiko Okada
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Abstract
A puncture sealing agent for sealing an inner surface of a tire comprises a deproteinized rubber latex that is formed by removing protein from a natural rubber latex. The puncture sealing agent includes nitrogen content at 0.1 wt. % or less of rubber solid content of the deproteinized rubber latex, and ammonia content at 0.5 wt. % or less of the rubber solid content.
Claims8
A puncture sealing agent for sealing an inner surface of a tire comprising a deproteinized rubber latex made by removing protein from a natural rubber latex, an adhesive agent, an antifreeze agent and a stabilizing agent, wherein
- nitrogen content is 0.1 wt. % or less of rubber solid content of the deproteinized rubber latex,
- ammonia content is 0.5 wt. % or less of the rubber solid content,
- said adhesive agent is composed of synthetic resins from petroleum hydrocarbon, or natural resins,
- said antifreeze agent is composed of glycol, and
- said stabilizing agent is a surface active agent present in an amount of 0.01 to 1.8 wt. % of rubber solid content of the deproteinized rubber latex and said stabilizing agent is selected from the group consisting of potassium rosinate and polyoxy ethylene lauryl ether sodium sulfate.
Dependencies are inferred from the claim text.