UI provides the whole range of organic peroxides as applied in the production of LDPE via both tubular and autoclave technology. With our own fleet of BTC (bulks), IBC and temperature-controlled shipping reefers we are completely flexible to the demand of our customers in all regions of the world.
UI provides the full portfolio of organic peroxides and persulfates used in suspension and emulsion polymerization processes for the production of S-PVC, E-PVC and MS-PVC. Typical supply forms for organic peroxides comprise IBC (1 ton), canisters (25kg) for liquids and cardboard (20kg) for solids.
S-PVC is produced by means of the most reactive organic peroxides currently supplied on the market. UI offers all standard grades in various concentrations and packaging in order to ease handling for our customers.
E-PVC is produced by means of persulfates in combination with respective redox systems. UI offers the full range of persulfates in various packaging out of our world-scale plants in Germany and China.
PP is one of the most important thermoplastic resins worldwide. Organic peroxides are used to modify reactor grade PP in respective extrusion lines in order to increase MFI (melt flow index) accordingly. Some applications request flame retardant PP. UI provides the whole package of peroxides and FR synergists.
UI offers the complete range of liquid and PP based solids for the production of cr-PP (“controlled-rheology PP”). The final cr-PP polymer, which may have MFI up to more than 1000, is preferably used in non-woven (fibre) applications as well as injection molding.
In many fire-resistant thermoplastic materials, flammability is reduced or eliminated by combining bromine compounds with synergists like antimontrioxide. Our CUROX CC grades help to significantly reduce or replace the often toxic and environmentally unfriendly FR synergists.
A wide range of radical inititators is used in the production of polystyrenes and its copolymers, for which UI provides the full range all of organic peroxides and persulfates. The finished goods are used in a huge variety of applications such as food packaging, mass articles, toys, household goods and electronics.
EPS (“expandable PS”) and XPS (“extruded PS”) are polystyrene rigid foams which belong to the most preferred materials for packaging and insulation. Often FR grades are requested. UI offers both organic peroxides for the polymerization of styrene monomer (SM) and most efficient synergists for flame retardant (FR) EPS and XPS types.
Standard polystyrene (GP-PS) and its impact resisting modifications (HI-PS) belong to the most established standard thermoplastics. UI has a wide range of perketals and peresters which are considered state of the art Initiators for these polystyrenes.
The styrene copolymers ABS and SAN rank among the largest engineered plastics with extensive usage in automotive, electrical, household and many other applications. UI provides the full range of both organic peroxides and persulfates, as applied in the different production technologies, including emulsion, suspension, and bulk polymerization.
Many finished goods in the construction industry have to be fire resistant per certification. Bromine-compounds combined with DCUP synergists have been standard to reduce or eliminate flammability. UI’s free radical generating CUROX CC grades help to significantly reduce the necessary amount of brominated compounds and thus improve raw material costs significantly in the production of EPS and XPS.
PMMA and other (meth-) acrylic acid esters are mainly used in the opto-electronical, automotive and construction industry. UI provides all the organic peroxides as applied in the typical polymerization processes in bulk and solution.