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; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

This application relates to synthetic elastomeric articles, such as gloves, 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, compositions and methods may contain an aqueous solution of a multimetal oxide of the multivalent metal, a hydroxide of the multivalent metal, or a salt of the multivalent metal, such as sodium aluminate, in an amount of less than 0.3 phr. L'invention concerne des objets élastomères synthétiques, tels que des gants, comprenant le produit durci 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 complexe métallique multivalent chargé négativement, présentant un pH d'au moins 9,0. L'invention porte également sur des compositions pour former les objets et des procédés de fabrication des objets, basés sur l'utilisation de la composition de réticulation décrite. Les objets, les compositions et les procédés peuvent contenir une solution aqueuse d'un oxyde multimétallique du métal multivalent, d'un hydroxyde du métal multivalent ou d'un sel du métal multivalent, tel que l'aluminate de sodium, en une quantité inférieure à 0,3 pce.