TIRE WITH THERMOPLASTIC INNERLINER

• Main Authors: HE, XIAOJUN, BRACE, LAUREN ELIZABETH, GILLICK, JAMES GREGORY
• Format: Patent
• Language: English; French; German
• Published: 22.06.2016
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF MATERIALS AS ADHESIVES; VEHICLE TYRES; VEHICLES IN GENERAL

A pneumatic tire (1) comprising a carcass and an innerliner (10) is disclosed. The innerliner (10) comprisies a film (10B) comprising a blend of a polyamide, an ±-olefin graft copolymer and an ionomer. An adhesive layer (10A) is disposed between the film (10B) and the carcass, the adhesive layer (10A) comprising a polymeric amine and a resorcinol-formaldehyde-latex (RFL) adhesive. Also, a method of building a pneumatic tire is disclosed. The method comprises the steps of exposing an innerliner film to a corona discharge to create a corona treated film, the innerliner film (10B) comprising a blend of a polyamide, an ±-olefin graft copolymer, and an ionomer; disposing a polymeric amine onto the corona treated film to create an amine treated film (10B); disposing a resorcinol-formaldehyde-latex (RFL) adhesive (10A) on the amine treated film (10B) to create a treated innerliner film; and incorporating the treated innerliner film into a tire build such that the treated innerliner film is in direct contact with a tire carcass.