Compared to benchmark phosphite antioxidant used in elastomers, TNPP, WESTON® 705 has up to 20% higher content of phosphorus and more reactive structures to protect polymer after reaction and during storage. This preserves the desired polymer structure for final applications.
WESTON® 705 is a true liquid antioxidant that can be easily incorporated in the existing elastomer solution or emulsion process. Its high solubility in organic solvents used in elastomer industry and liquid form provide a clear advantage to other alternative products. In addition, its clean NIAS (Non-Intentionally Added Substances) profile and most recent FDA approval in styrene block copolymers make it the safest antioxidant in the industry, which will give consumers peace of mind.
Provides better storage stability with up to 3X longer retention of Mooney Viscosity in heat aging test.
Significantly better color retention for longer customer satisfaction.
Sulphur-free chemistry provides odor-free, end-use applications.
SI Group is the global leader in liquid phosphite antioxidant chemicals with decades of experience in antioxidant manufacturing. WESTON® 705, the latest addition to our well-established SI Group brand in the plastics and elastomer markets, has now secured comprehensive regulatory approval for food packaging.
Thanks to its leading position, SI Group boasts broad options and an unequalled supply security for its raw materials around the globe. SI Group operates from 11 production sites globally. WESTON® 705 is currently manufactured in the USA and will be complemented by a 2nd production site in Asia in 2018.
Handles and feeds like TNPP with accurate liquid feeding and avoids a costly capital investment.
New solutions available on all continents with local technical service and support.
SI Group’s dedicated team of technical service engineers can assist customers in their transition to WESTON® 705. We provide guidance and onsite support during every step of the process, from unloading, storage, and handling, to analysis and in-polymer performance evaluation in order to ensure a seamless transition.
WESTON®705 is approved for broad food contact in ELASTOMERS by the U.S. Food and Drug Administration (FDA) and the European Food Standards Agency (EFSA). A full NIAS profile is available, with associated toxicological data, allowing resin manufacturers to perform the required safety assessment. WESTON® 705 is included on all current global chemical inventories.
Fulfills brand owners’ demand for a nonylphenol-free alternative antioxidant.
WESTON ® 705 has been thoroughly tested for its Non-Intentionally Added Substances profile. It is approved by the FDA, EFSA and most countries with mandatory food contact approvals around the world.