Vulcanizing Agents (Inhibitors) for Plastic Compounds

Rhenogran® CTP-80 by Rhein Chemie Additives (Lanxess Group) is a pre-vulcanization inhibitor for natural- and synthetic rubber. It retards the onset of cure in rubber without considerably extending the total curing time. It is used with sulfenamide or thiazole accelerators to improve processing safety. It enhances the storage stability of uncured compounds. It increases machine capacity utilization, when added in processing of rubber compounds at higher temperatures. It causes only very slight dis-coloration in bright or white articles. It contains ethylene propylene diene rubber (EPDM) as a binder. It is applicable in the production of tires, conveyor belts, shoe soles, technical molded and extruded articles. Recommended dosage level of Rhenogran® CTP-80 is 0.2-2 phr. It has a shelf life of 2 years.

Prevent the development of "scorch". In polychloroprene-phenol resins it acts as an acid acceptor and integral part of the bonding system.

Prevent the development of "scorch". In polychloroprene-phenol resins it acts as an acid acceptor and integral part of the bonding system.

Prevent the development of "scorch". In polychloroprene-phenol resins it acts as an acid acceptor and integral part of the bonding system.

Prevent the development of "scorch". In polychloroprene-phenol resins it acts as an acid acceptor and integral part of the bonding system.

Prevent the development of "scorch". In polychloroprene-phenol resins it acts as an acid acceptor and integral part of the bonding system.

Prevent the development of "scorch". In polychloroprene-phenol resins it acts as an acid acceptor and integral part of the bonding system.

Stangard® CTP-PWD-D by Harwick Standard is a N-(cyclohexylthio)phthalimide. It is a vulcanization inhibitor available in white crystal or oil treated powder form. It is a true retarder, as it only affects cure, not the modulus development. It is non-staining and only slightly discoloring when used in light colored compounds. Stangard® CTP-PWD-D is suitable for sulfonamides, elastomers, NR, IR, EPDM, IIR, CR, NBR and SBR. It complies with TSCA.

Actmix® CTP-80GE F500 by Ningbo Actmix Rubber Chemicals is a cyclohexylthiophthalimide. Acts as a vulcanization retarder. It can prolong total vulcanizing time. It can improve processing safety and not affect properties of vulcanizates with sulfenamides or thiazoles. It can significantly improve the storage stability of unvulcanized rubber and high temperature processing safety performance. It is compatible with NBR, SBR, AR and ECO. Used in nature and synthetic rubber compounds (tire /conveyor belt, shoe soles). Actmix® CTP-80GE F500 recommended dosage rate is 0.2-2.0 phr and will be blooming if more than 5.0 phr.

ELASTOMAG® 170 by Martin Marietta Magnesia Specialties is micronized and highly reactive magnesium oxide. Acts as a vulcanizing or scorch retarder in a variety of elastomers. Also acts as a thickening agent as well as an acid acceptor. Can also be used as anti-caking agent. Recommended for halogenated polymers (as acid acceptor), sheet and bulk molding compounds (as thickening agent).