Quent® 68 by Qualichem Specialties is Tris(2,4-di-tert-butylphenyl) phosphite. Acts as a secondary antioxidant for organic polymers. Possesses very good melt flow and color protection during thermal processing of polymers. Can be used with benzotriazoles and HALS for thermal and light stabilization in outdoor use and also in combination with hindered phenol, to achieve synergistic performance. Quent® 68 is used for applications including polyolefins, elastomers, polycarbonate, polyester, and styrenics.
Quent® DPDP by Qualichem Specialties is Alkyl aryl phosphite. Acts as a very good antioxidant for acrylics, polyesters & polyphenylene oxide which improves the color retention during the processing of these polymers. Also acts as a chelating agent in liquid PVC stabilizers. Improves heat & light stability properties in PVC plastics. Is a non-polluting stabilizer for styrene butadiene rubbers. Quent® DPDP can be used with metal soap in processing of PVC to improve color & weathering resistance of products.
Quent® OB by Qualichem Specialties is 2,2-(2,5-Thiophenediyl) bis [5-(1,1-dimethylethy)]-benzoxazole. Acts as an optical brightener. Functions by absorbing ultraviolet radiation and remitting blue light; this emitted blue light reduces the yellow color of a polymer. Offers very good resistance to heat, exceptional whitening properties, good light fastness and low volatility. Produces brilliant brightness with dyestuff, which is very efficient in directions for multicolor. Highly effective in polymer substrates such as engineering plastics, PE, PC, PVC, PS, ABS, and PP, and other organic substrates. Quent® OB is used for applications like fiber, molded article, film and sheet.
