TIRE CURING BLADDERS WITH BROMINATED POLY(ISOBUTYLENE-CO-PARAMETHYLSTYRENE)

• Main Authors: JACOB, Sunny, NGUYEN, Paul
• Format: Patent
• Language: English; French
• Published: 21.03.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention is related to a tire curing bladder that includes a brominated poly(isobutylene-co-paramethylstyrene) elastomer having a Mw/Mn ratio greater than or equal to 2.5 and less than or equal to 10, a mercaptobenzothiazole disulfide, a phenolic resin and a curative agent. The invention also relates to the composition and to a method of making a tire curing bladder. L'invention concerne une vessie de vulcanisation de pneus qui contient un élastomère de poly(isobutylène-co-paraméthylstyrène) bromé ayant un rapport Mw/Mn supérieur ou égal à 2,5 et inférieur ou égal à 10, un disulfure de mercaptobenzothiazole, une résine phénolique et un agent durcisseur. L'invention concerne également la composition et un procédé de fabrication d'une vessie de vulcanisation de pneus.