Hypro® 1300X68 ETBN

Hypro® 1300X68 ETBN

Hypro (f.k.a. Hycar®) 1300X68 ETBN is an epoxy-functional synthetic rubber. It is the reaction product of epichlorohydrin and Hypro 1300X8 Carboxyl-Terminated Butadiene-Acrylonitrile copolymer (CTBN). It is a 100%-solids, reactive polymer designed to incorporate synthetic rubber into a thermoset matrix by reacting it with conventional epoxy hardeners.

Hypro 1300X68 ETBN provides rubber-toughening benefits in ambient-cured 2K systems and in heat-cured 1K systems.

In 2K systems:
Lower-viscosity alternative to epoxy-resin adducts with CTBNs
Alternative to Amine-Terminated Butadiene-Acrylonitrile tougheners (ATBN) where there is incompatibility with the amine co-curatives
Complementary toughener with other toughening agents.

In 1K systems:
Lower-viscosity alternative to epoxy-resin adducts with CTBNs
Higher Tg to systems with epoxy-resin adducts with CTBNs

Typical Properties Values
% Acrylonitrile 18
Viscosity, cps (reflects mid-point) 300,000 @ 27°C/20,000 @52°C
EEW,, g/eq 2,200-2,800
Color, Max 8 (Gardner)
Molecular Weight (g/mol) 3700
Acid Number, % <0.1
% Solids 100
Glass Transition, Tg, °C -52

Europe (REACH) Format

GHS Internatl Format

North American Format

Application Group Application Description
Adhesives Industrial Pressure Sensitive Adhesives (Acrylic PSA) Used to improve adhesion at low temperatures.