Products

HYPOX® RA840 is a high-viscosity adduct of the diglycidyl ether of bisphenol A (DGEBA) and a butadiene-acrylonitrile (CTBN) elastomer. The elastomer improves the toughness and impact, thermal shock and peel resistance of the epoxy formulation. These improvements are attained with little loss of thermal resistance and modulus. HYPOX® RA840 adduct is suggested for use as a toughener in fiber-reinforced products, adhesives, molding compounds, potting and encapsulating compounds and chemical-resistant coatings. HYPOX® RA840 adduct can be blended with other bis-A epoxy resins to achieve the degree of toughening required.

HYPOX® RF 928 N Adduct is an epoxy phenol novolac resin toughened with a CTBN (carboxyl-terminated butadiene-acrylonitrile) co-polymer. With a low viscosity, a functionality of 2.3, and 20% elastomer content, it enhances toughness without significantly affecting Tg. Formulations with this adduct show improved impact, thermal cycling, peel, tensile shear strengths, and low-temperature properties. It also offers better chemical and heat resistance than DGEBA-toughened epoxies at the same rubber level.

HYPOX® RM20 is an adduct of CTBN with epoxidized neopentyl glycol. Compared to standard epoxy resin/CTBN adducts, this product has a lower viscosity coupled with a high rubber content and is intended for use in combination with standard epoxy resins when the end-use application requires toughening and lower viscosity. HYPOX® RM20 adduct will increase flexibility, crack resistance, fatigue resistance, peel resistance, and adhesive properties. It will also improve the cathodic disbondment property when used in coating formulations for underground buried pipes in oil and gas transport applications.