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A puncture sealant package for incorporation into a pneumatic tire is formed by coextruding a puncture sealant, and a skin forming material. The ribs are formed in an initially circular package profile as chords. After flow in a sheet die, the chords form divider ribs making small angles with the en

A puncture sealant package for incorporation into a pneumatic tire is formed by coextruding a puncture sealant, and a skin forming material. The ribs are formed in an initially circular package profile as chords. After flow in a sheet die, the chords form divider ribs making small angles with the encapulating skin. The compartments formed by the ribs prevent flow of the sealant toward the center of a tire.

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A method of forming a compartmented package containing puncture sealant for use in a tire, the steps of the method comprising (a) providing a first stream of uniform cross-section of a puncture sealant. (b) providing a second stream of a package forming material; (c) encapsulating the puncture seala

A method of forming a compartmented package containing puncture sealant for use in a tire, the steps of the method comprising (a) providing a first stream of uniform cross-section of a puncture sealant. (b) providing a second stream of a package forming material; (c) encapsulating the puncture sealant stream within the package forming material; (d) forming continuous ribs of the package forming material through the puncture sealant surrounded by package forming material; (e) supplying the compartmented stream of the puncture sealant to an extrusion die defining an elongate slot like orifice; and (f) forming and expanding the composite stream into a generally elongate configuration with ribs extending from package wall to package wall each rib forming a juncture angle of from 1°to 90°with a package wall. An apparatus for forming a compartmented package comprising: (a) a means for providing a first stream of uniform cross-section of a puncture sealant and a second stream of a package forming material. (b) a means for encapsulating the puncture sealant stream within the package forming material; (c) a means for forming non-parallel continuous ribs of the package forming material through the puncture sealant surrounded by package forming material; (d) a means for supplying the compartmented stream of the puncture sealant to an extrusion die defining an elongate slot like orifice; and (e) a means for forming and expanding the composite stream into a generally elongate configuration with ribs extending from package wall to package wall each rib forming a juncture angle of from 1°to 25°with a package wall.