Invista Sales And Service India Pvt. Ltd. Supplies 1,3-Pentanediamine with Low Glass Point. Invista Sales And Service India Pvt. Ltd. Offers polymers and fibers, primarily for nylon, spandex and polyester applications. 1,3-Pentanediamine with Low Glass Point is a low viscosity, low odor, biodegradable, liquid diamine featuring an odd carbon, ethyl-branched, asymmetric structure and differential amine reactivity. 1,3-Pentanediamine with Low Glass Point can improve flow, penetration, wetting, or solubility over straight chain diamines. This can be available in the brand name of DYTEK®EP. ®.