ELASTOMERIC ARTICLES, COMPOSITIONS, AND METHODS FOR THEIR PRODUCTION

• Main Authors: FOO, Khon Pu, PRABHAKARAN, Kumaresan
• Format: Patent
• Language: English; French
• Published: 03.08.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

This application relates to synthetic elastomeric articles, and gloves in particular, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross- linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross- linking composition. The articles so produced have an average thickness of 0.2mm or less and a modulus at 500% of less than 6.5 MPa. L'invention concerne des articles élastomères synthétiques, en particulier des gants, comprenant le produit vulcanisé d'une composition de latex synthétique, la composition de latex synthétique comprenant un polymère carboxylé synthétique et une composition de réticulation, la composition de réticulation comprenant une solution aqueuse d'un ion de complexe métallique multivalent chargé négativement ayant un pH d'au moins 9.0. L'invention concerne également des compositions permettant de former lesdits articles, et des procédés permettant de fabriquer lesdits articles, basés sur l'utilisation de la composition de réticulation décrite. Les articles ainsi fabriqués ont une épaisseur moyenne de 0,2 mm au plus, et un module à 500 % de moins de 6,5 MPa.