The present invention relates to a method for self-repairing an object, wherein the object (O) comprises a matrix of a material in a continuous solid form, with optically resonant particles dispersed there within, and that has been made by fusing together particles and/or particulates of the material in a non-continuous solid form with heat transferred from the optically resonant particles that has been generated thereby when optically resonating induced by their exposure to building electromagnetic radiation. The method comprises exposing a damaged region (D) of the object (O) to repairing electromagnetic radiation (R) to be absorbed by the optically resonant particles that are dispersed therein to optically resonate to generate heat to fuse together portions of the matrix in thermal contact therewith. The system is adapted to implement the method of the invention.

A tire with in-situ generated intrinsic puncture sealant layers and intrinsic noise damper comprising a supporting tire carcass having one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of a tread portion to join the respective beads, a sealant comprising at least one layer of sealant, disposed radially inwardly from said radially inner layer of said tire carcass, an intrinsic cellular noise damper as the innermost layer adjacent to the sealant, wherein said noise damper has a density less than 1.3 g/cm.sup.3; and wherein said sealant provides self-sealing properties to the tire.

A tire with in-situ generated intrinsic puncture sealant layers and intrinsic noise damper comprising a supporting tire carcass having one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of a tread portion to join the respective beads, a sealant comprising at least one layer of sealant, disposed radially inwardly from said radially inner layer of said tire carcass, an intrinsic cellular noise damper as the innermost layer adjacent to the sealant, wherein said noise damper has a density less than 1.3 g/cm.sup.3; and wherein said sealant provides self-sealing properties to the tire.

A tire with in-situ generated two or more intrinsic puncture sealant layers based on ionic butyl with two or more different viscosities comprising a supporting tire carcass having one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of a tread portion to join the respective beads, a sealant comprising an outer layer of sealant and an inner layer of sealant, disposed radially inwardly from the radially inner layer of the tire carcass, wherein the outer layer of sealant and the inner layer of sealant have different viscosities, wherein the sealant provides self-sealing properties to the tire, and wherein the inner layer of sealant is cross-linked to the outer layer of sealant with no barrier separating the inner and outer layers of sealant.

A tire with in-situ generated two or more intrinsic puncture sealant layers based on ionic butyl with two or more different viscosities comprising a supporting tire carcass having one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of a tread portion to join the respective beads, a sealant comprising an outer layer of sealant and an inner layer of sealant, disposed radially inwardly from the radially inner layer of the tire carcass, wherein the outer layer of sealant and the inner layer of sealant have different viscosities, wherein the sealant provides self-sealing properties to the tire, and wherein the inner layer of sealant is cross-linked to the outer layer of sealant with no barrier separating the inner and outer layers of sealant.

One aspect of the present invention is a puncture healing polymer blend comprising a self-healing first polymer material having sufficient melt elasticity to snap back and close a hole formed by a projectile passing through the material at a velocity sufficient to produce a local melt state in the first polymer material. The puncture healing polymer blend further includes a non-self-healing second material that is blended with the first polymer material. The blend of self-healing first polymer material and second material is capable of self-healing, and may have improved material properties relative to known self-healing polymers.

One aspect of the present invention is a puncture healing polymer blend comprising a self-healing first polymer material having sufficient melt elasticity to snap back and close a hole formed by a projectile passing through the material at a velocity sufficient to produce a local melt state in the first polymer material. The puncture healing polymer blend further includes a non-self-healing second material that is blended with the first polymer material. The blend of self-healing first polymer material and second material is capable of self-healing, and may have improved material properties relative to known self-healing polymers.

The present disclosure is directed to stress-responsive compositions comprising (1) at least one (co)polymer comprising at least one mechanophore comprising at least one thiocarbonylthio functional group or derivative thereof and (2) at least one compound comprising at least one functional group capable of reacting with a free radical, The present disclosure is also directed to articles, coatings, and 3D printing binders comprising such stress-responsive compositions, as well as to processes of imparting the abilities of forming and maintaining protective barriers and mechanical self-healing to such articles, coatings, and 3D printing binders by incorporating such stress-responsive compositions therein.

The present disclosure is directed to stress-responsive compositions comprising (1) at least one (co)polymer comprising at least one mechanophore comprising at least one thiocarbonylthio functional group or derivative thereof and (2) at least one compound comprising at least one functional group capable of reacting with a free radical, The present disclosure is also directed to articles, coatings, and 3D printing binders comprising such stress-responsive compositions, as well as to processes of imparting the abilities of forming and maintaining protective barriers and mechanical self-healing to such articles, coatings, and 3D printing binders by incorporating such stress-responsive compositions therein.

A tire including a sealant layer and a sound absorbing material layer is provided, and more particularly, a tire is provided, which includes a sound absorbing material layer which is attached to an inner surface of a tire, and a sealant layer which is disposed between the inner surface of the tire and the sound absorbing material layer and includes a sealant which attaches the sound absorbing material layer to the inner surface of the tire. The sound absorbing material layer includes a non-woven fabric.