B29D2030/544

BONDING RUBBER AND PLASTIC SURFACES DURING INJECTION MOLDING
20220347899 · 2022-11-03 ·

An injection molded composite comprising a first bonding surface of a diene rubber composition bonded to a second bonding surface of a polar thermoplastic elastomer composition. There may be no more than 25% of the bonding surfaces having an adhesive applied to them or alternatively, no adhesive is applied. Furthermore, the polar thermoplastic elastomer composition was injected against the first bonding surface to form the second bonding surface and the first bonding surface has an active halogen moiety.

THE USE OF A MOISTURE RESERVOIR FOR RETREADING

A method of retreading a tire. The method includes the steps of applying a primer to an inner surface of a circumferential tread and applying the primer to an outer surface of a tire casing; applying an adhesive to the primer disposed on the inner surface and the primer disposed on the outer surface; applying the circumferential tread to the tire casing so the inner surface contacts the outer surface and a bondline edge forms circumferentially about the tire casing proximate to a shoulder area of the tire casing; and coupling a moisture reservoir to the circumferential tread proximate to the bondline edge.

METHOD FOR ADHERING CURED RUBBER COMPONENTS

A method for preparing a retreaded tire, the method comprising (a) providing a tire casing; (b) providing a pre-cured tire tread; (c) applying a primer composition to the tire casing, the pre-cured tread, or both the tire casing and the pre-cured tread therefore form at least one primer layer, where the primer composition includes a halogenating agent and a solvent; (d) applying a urethane-based adhesive composition to at least one of the tire casing, an adhesive layer, the pre-cured tread, or the at least one primer layer; (e) mating the pre-cured tread to the tire casing to thereby sandwich the adhesive layer between the pre-cured tread and the tire casing and form a pre-cured composite: and (f) allowing the adhesive layer of the pre-cured composite to cure and thereby form a retreaded tire.

METHOD OF APPLYING A POST CURE LAMINATE TO A TIRE
20170355159 · 2017-12-14 ·

A method of applying a laminate to a tire includes pre-treating a portion of the tire and placing the laminate on at least the pre-treated portion of the tire. The method further includes placing an electrical heating element on top of the laminate and placing a pressure element over the electrical heating element and the laminate. The method also includes applying heat and pressure to the laminate using the electrical heating element and the pressure element to permanently adhere the laminate to the tire.

Tire Cold Retreading Method
20220055329 · 2022-02-24 ·

A method for the cold retreading of a tyre (1) comprising the following steps: a removal step, during which the old, worn tread is removed from the tyre in order to expose an equatorial surface (2) of a casing (3) of the tyre (1); a deposition step, during which a cushion (4) and a pre-cured tread strip (6) provided with a tread pattern are deposited around the equatorial surface (2) of the casing (3); and a curing step, during which the cushion (4) arranged between the casing (3) and the pre-cured tread strip (6) is cured. The cushion (4) is manufactured with a compound comprising 1 to 30 phr of at least one conductive material chosen among graphite, graphene and a carbon black having a surface area which is greater than or equal to 300 m.sup.2/gr. The curing step comprises a connection step, during which said cushion (4) is connected to a heat or power source (S).

DUAL MOLD REPLACEABLE CENTER RIB
20170246824 · 2017-08-31 ·

Assemblies and methods for fabricating one or more molded tire treads are provided along with systems for manufacturing a plurality of tread mold configurations from interchangeable elements.

METHODS FOR MANUFACTURING A TREAD FOR AGRICULTURAL TIRE USING A DINITRILE OXIDE CURE SYSTEM
20220032566 · 2022-02-03 ·

A method of manufacturing a tread for agricultural tires, the method comprising providing an agricultural tire casing, providing a cured rubber component having first and second planar surfaces, providing a plurality of cushion gums, wherein the plurality of cushion gums contains a cure system comprising a stable dinitrile oxide compound, providing a plurality of lugs, and forming an agricultural tread composite by mating the lugs to a planar surface of the cured rubber component using the cushion gum.

Methods for retreading tires

A process for retreading a tire, the process comprising the steps of providing a tire casing; providing a cured rubber component having first and second planar surfaces, where the first planar surface includes a tread pattern; providing a cushion gum, wherein the cushion gum is a composition including a functional polymer including at least one functional group, and a crosslinking agent including at least two moieties that will react with the functional group of the functional elastomer; applying the cushion gum to the tire casing; applying the second planar surface of the cured rubber to the cushion gum to form a tire composite; and treating the tire composite to thereby form a retread tire.

METHODS FOR RETREADING TIRES

A process for retreading a tire, the process comprising the steps of providing a tire casing; providing a cured rubber component having first and second planar surfaces, where the first planar surface includes a tread pattern; providing a cushion gum, wherein the cushion gum is a composition including a functional polymer including at least one functional group, and a crosslinking agent including at least two moieties that will react with the functional group of the functional elastomer; applying the cushion gum to the tire casing; applying the second planar surface of the cured rubber to the cushion gum to form a tire composite; and treating the tire composite to thereby form a retread tire.

METHODS FOR RETREADING TIRES EMPLOYING CUSHION GUM WITH STABLE DINITRILE OXIDE CURE SYSTEM
20220024166 · 2022-01-27 ·

A process for retreading a tire, the process comprising the steps of providing a tire casing, providing a cured rubber component having first and second planar surfaces, providing a cushion gum, wherein the cushion gum contains a cure system comprising at least one stable aryl dinitrile oxide compound, applying the cushion gum to the tire casing, and forming a tire composite by applying the second planar surface of the cured rubber component to the cushion gum.