VESTA CHEMICALS BV - Distributor of Specialty Chemicals

Iniper 64 (Azobisisobutyronitrile) is an white solid which has C8H12N4 as chemical formula. Iniper 64 is used as initiator predominantly for bulk, solution, suspension and emulsion polymerisation of a wide variety of monomers. Polymers produced in this way are used for different applications such as fibres, sheets, coating resins flocculants etc. The polymerisation of the monomers used is initiated by the free cyanoisopopyl radicals which are formed upon thermal decomposition of Iniper 64. It does not form oxygenated residues as it is the case with peroxides and does not cause oxidative degradation of pigmented or dyed polymer compositions such as paints, coatings, fibres and sheets. Availability Europe Iniper 64 (AIBN) is on stock in our local warehouses. Our lead time is about one week if delivered in 20 KG fiber drums. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Iniper AIVN SG2000 (Azobismethylbutyronitrile) is an white solid which has C10H16N4 as chemical formula.It finds its application as polymerzation initiator of amongst others acrylics and styrenes. Further it is also used in the production of foams to create nitrogen bubbles. Iniper 67 is significantly more soluble in organic solvents than Iniper 64 (AIBN) . Azobismethylbutyronitrile is also known as 2,2’Azobis(2methylbutyronitrile), 2,2′(Diazene1,2diyl)bis(2methylbutanenitrile) and AMBN. Availability Europe Iniper AIVN 2000 is on stock in our local warehouses. Our lead time is about one week if delivered in 20 KG fiber drums. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Iniper MAI (Dimethyl 2,2′azobis(2methylpropionate)) is an white solid which has C10H18N2O4 as chemical formula. Iniper MAI is used as polymerization in the production of polyols and polyester polyols, it is a nonnitrile azoinitiator which is soluble in a wide variety of organic solvents. This substance is also known as 2,2Azobisisobutyric acid dimethyl ester and Dimethyl 2,2′(diazene1,2diyl)bis(2methylpropanoate). Availability Europe Iniper MAI ( Dimethyl 2,2′azobis(2methylpropionate) is on stock in our local warehouses. Our lead time is about one week if delivered in 20KG carton boxes. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

A micronized grade of dicyandiamide containing 1.5%1.6% antiblocking agent to inhibit clumping and improve handling. It is used as curing agent for epoxy resins. Due to its high melting point Vicura DICY 100S does not melt during extrusion to produce a homogeneous mixture with the epoxy resin on a molecular scale. Therefore Vicura DICY 100S is supplied with low particle size assuring in this way acceptable homogeneity during the extrusion step, provided the premixing process is done properly. Outstanding features of epoxy powder coatings cured with Vicura DICY100S include excellent adhesion to metal, excellent chemical and solvent resistance, very high impact, abrasion and scratchy resistance, and dielectric properties that make them suitable for many electrical applications. Availability Europe and United States Provided Vicuta DICY 100S is on stock in our local warehouses our lead time is about one week if delivered in 20 KG carton boxes.

Vicura MC2844 (1otolylbiguanide) is an offwhite powder which has C9H13N5 as chemical formula. This substance finds its application in powder coatings and is also known as substituted dicyandiamide or modified dicyandiamide. nter content here. Availability Europe Vicura MC2844 is on stock in our local warehouses. Our leadtime is about one week if delivered in 25 KG carton boxes. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Vicura MC31 (2phenyl2imidazoline) is an offwhite powder which has C9H10N2 as chemical formula. It can be used as a crosslinker for highly reactive epoxy powder coatings, accelerator for dicyandiamide, epoxy/polyester hybrids and epoxy phenolic powder coatings. 2phenyl2imidazoline is also known as 2Phenyl4,5dihydro1Himidazole and 4,5Dihydro2phenyl1Himidazole. Availability Europe and United States Provided Vicura MC31 is on stock in our local warehouses our lead time is about one week if delivered in 25 KG fiber drums. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Vicura MC55 (Pyrromelletic Acid Diphenyl Imidazoline Salt 12) is an offwhite powder with the following chemical formula C10H6O8.2C9H10N2 The curing mechanism between Vicura MC55 (Pyrromelletic Acid Diphenyl Imidazoline Salt 12) and the epoxy resin is complex. Two parallel processes are taking place; direct reaction between the imidazoline and the epoxy group and homopolymerization of the epoxy resin that is catalyzed by Vicura MC 55. Compared to most of the powder coating systems where the optimal ratio between the crosslinker and the binder is close to the stoichiometric one, in the case of Vicura MC55 the optimal ratio is generally determined empirically. For epoxy resins that are typically used for powder coatings (epoxy equivalent weights between 700 – 1000) amounts of 6,0 – 9,0 % of Vicura MC31 are recommended as good starting. Benzene1,2,4,5tetracarboxylic acid, compound with 4,5dihydro2phenyl1Himidazole (12)

The curing mechanism between Vicura MC68 (Pyromellitic Acid Diphenyl Imidazoline Salt) and the epoxy resin is complex. Two parallel processes are taking place; direct reaction between the imidazoline and the epoxy group and homopolymerization of the epoxy resin that is catalyzed by Vicura MC68. Compared to most of the powder coating systems where the optimal ratio between the crosslinker and the binder is close to the stoichiometric one, in the case of Vicura MC68 the optimal ratio is generally determined empirically. For epoxy resins that are typically used for powder coatings (epoxy equivalent weights between 700 – 1000) amounts of 8,0 – 10,0 % of Vicura MC68 are recommended as good starting points. Also available with added calcium carbonate (Vicura MC68L) Availability Europe Vicura MC68 is on stock in our local warehouses. Our lead time is about one week if delivered in 20 KG carton boxes.

Enox 101 (25Dimethyl25ditertbutylperoxyhexane) is a yellowish liquid which has C16H34O4 as chemical formula. It is used to cure polymers and elastomers, mainly polyethylene ( LDPE, HDPE), ethylene propylene diene monomer (EPDM), sillicone rubber and fluoroelastomers. Further it acts as initiator for the production of controlled rheology polypropylene (CRPP). 2,5Dimethyl2,5di(tertbutylperoxy)hexane is also known as ditertbutyl 1,1,4,4tetramethyltetramethylene diperoxide, 2,5Dimethyl2,5bis(tertbutylhydroperoxy)hexane and Ditertbutyl 1,1,4,4tetramethyltetramethylene diperoxide. Availability Europe Enox 101 (DHBP) on stock in our local warehouses our lead time is about one week if delivered in 25 KG PE drums. South America, South Africa and other markets can also be served, please contact our sales department for more details.

Enox 10150Dpd (25Dimethyl25ditertbutylperoxyhexane on silica, 50%) is a white powder which has C16H34O4 as chemical formula. It is used to for the crosslinking of natural rubber, synthetic rubber (such as silicone rubber) and as modification agent of polypropylene degradation. 2,5Dimethyl2,5di(tertbutylperoxy)hexane is also known as ditertbutyl 1,1,4,4tetramethyltetramethylene diperoxide, 2,5Dimethyl2,5bis(tertbutylhydroperoxy)hexane and Ditertbutyl 1,1,4,4tetramethyltetramethylene diperoxide. Availability Europe Provided Enox 10150DPD is on stock in our local warehouses our lead time is about one week if delivered in 25 KG drums. South America, South Africa and other markets can also be served, please contact our sales department for more details.