Liquid coagulant and tire puncture sealing material set
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsTakahiro OKAMATSU, Kazushi KIMURA
Life of this patent
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Abstract
Disclosed is a liquid coagulant which can be injected into the inside of a tire without the need of removing the tire from a rim and which can prevent the scattering of a residue of a tire puncture sealing material when the tire is removed from the rim. The liquid coagulant can coagulate an emulsion that contains natural rubber latex and/or a synthetic resin emulsion. The liquid coagulant contains a foaming agent capable of foaming the emulsion. Also disclosed is a tire puncture sealant set including the coagulant and a method of coagulating a tire puncture sealant.
Claims6
A tire puncture sealant set, comprising:
- a tire puncture sealant which contains a natural rubber latex,
- a synthetic resin emulsion, and
- an antifreezing agent;
- and
- a liquid coagulant for coagulating the tire puncture sealant,
- wherein the liquid coagulant includes a blowing agent for foaming the tire puncture sealant, and the blowing agent is one of a reactive blowing agent using a urethane resin and/or an acrylic resin having two or more carboxy groups and a hydrogencarbonate salt;
- and a reactive blowing agent using a polyisocyanate compound.
A method of coagulating a tire puncture sealant remaining in a pneumatic tire, comprising the step of:
- injecting a liquid coagulant into a punctured tire, in which the tire puncture sealant is remaining, without removing the tire from a rim,
- wherein the tire puncture sealant includes a natural rubber latex, a synthetic resin emulsion and an antifreezing agent,
- wherein the liquid coagulant includes a blowing agent for foaming the tire puncture sealant, and the blowing agent is one of a reactive blowing agent using a urethane resin and/or an acrylic resin having two or more carboxy groups and a hydrogencarbonate salt;
- and a reactive blowing agent using a polyisocyanate compound, and
- wherein the blowing agent causes in-situ coagulation of the tire puncture sealant, leaving no liquid components in the tire.
Dependencies are inferred from the claim text.