A method of selectively controlling the self-sealing ability of a tyre obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tyre inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed.

The present disclosure relates to a writing instrument comprising a self-healing seal component to prevent drying out of the writing instrument and an elastomeric support to protect the self-healing seal component.

The present disclosure relates to a writing instrument comprising a self-healing seal component to prevent drying out of the writing instrument and an elastomeric support to protect the self-healing seal component.

A pneumatic tire 1 has a sealant layer 11 arranged on an inner cavity surface. The sealant layer 11 includes an adhesive material 12 having adhesiveness and flowability, and fillers 13 each formed in a fibrous or rod-like shape. Each of the fillers 13 has a length more than 5 mm and not more than 30 mm and an outer diameter in a range of from 0.2 to 1.0 mm.

A pneumatic tire 1 has a sealant layer 11 arranged on an inner cavity surface. The sealant layer 11 includes an adhesive material 12 having adhesiveness and flowability, and fillers 13 each formed in a fibrous or rod-like shape. Each of the fillers 13 has a length more than 5 mm and not more than 30 mm and an outer diameter in a range of from 0.2 to 1.0 mm.

A method of forming an implant includes providing a preformed shell formed from at least one cured elastomeric layer. The preformed shell includes an outer surface, an inner surface, and an opening for accessing an interior volume of the preformed shell. The method further includes expanding the preformed shell to an expanded state, in which the interior volume is greater than the interior volume of the preformed shell at a time of forming the preformed shell and forming an inner zone having at least one inner elastomeric layer on at least a portion of the inner surface of the preformed shell, while the shell is in the expanded state, thereby forming a multi-zone shell. The method further includes reducing the interior volume of the multi-zone shell, thereby contracting the at least one inner elastomeric layer of the inner zone and causing texturing of the at least one inner elastomeric layer.

A method of forming an implant includes providing a preformed shell formed from at least one cured elastomeric layer. The preformed shell includes an outer surface, an inner surface, and an opening for accessing an interior volume of the preformed shell. The method further includes expanding the preformed shell to an expanded state, in which the interior volume is greater than the interior volume of the preformed shell at a time of forming the preformed shell and forming an inner zone having at least one inner elastomeric layer on at least a portion of the inner surface of the preformed shell, while the shell is in the expanded state, thereby forming a multi-zone shell. The method further includes reducing the interior volume of the multi-zone shell, thereby contracting the at least one inner elastomeric layer of the inner zone and causing texturing of the at least one inner elastomeric layer.

A method of forming a fluid-filled implant is provided. The method includes: forming a first zone of an elastomeric membrane defining at least one partially enclosed void space; expanding a volume of the void space, thereby expanding a volume enclosed by the first zone; forming a second zone comprising at least one elastomeric middle layer on at least a portion of the expanded first zone; and reducing the volume of the void space, thereby contracting elastomeric layers of the first zone and the second zone. The method also includes forming an adjustable implant from the elastomeric membrane by enclosing the void space to form at least one chamber.

A method of forming a fluid-filled implant is provided. The method includes: forming a first zone of an elastomeric membrane defining at least one partially enclosed void space; expanding a volume of the void space, thereby expanding a volume enclosed by the first zone; forming a second zone comprising at least one elastomeric middle layer on at least a portion of the expanded first zone; and reducing the volume of the void space, thereby contracting elastomeric layers of the first zone and the second zone. The method also includes forming an adjustable implant from the elastomeric membrane by enclosing the void space to form at least one chamber.

The present invention is directed to a pneumatic tire comprising a radially outer circumferential rubber tread disposed on a supporting carcass, an inner liner rubber layer radially inwardly disposed on the supporting carcass, and a sealant layer adhered to and disposed inwardly of the rubber inner liner layer as a radially inner surface of the tire, wherein the sealant layer comprises 100 parts by weight of elastomer comprising 5 to 10 parts by weight, per 100 parts by weight of elastomer (phr) of butyl rubber, 10 to 25 phr of bromobutyl rubber, and 65 to 85 phr of polybutene: and from 0.05 to 2 phr of a polymeric amine.