UREXTER - Prepolymers and polyols for microcellular polyurethane systems
Polyurethane systems, ester based, generally bicomponents: EXTER is the trade name for polyol; URECOM for isocyanic part:
URECOM + EXTER = UREXTER
The main use is the production of the footwear soles, but they are used also to produce technical articles such as tyres for trolleys or bicycle and wheelchair wheels, parts for the automotive industry, shock absorbers, gaskets, etc..
In comparison to other materials, especially those related to production of soles, the advantages are:
limited costs of the production moulds
excellent resistance to abrasion and to wearing
excellent mechanical characteristics such as the load bearing, elongation, ultimate tensile strength, tear strength
excellent cold mechanical properties, in particular the resistance at breaking under flexural stresses
good resistance to hydrolysis, allowing the use in highly humid climates
good resistance to bacterial attack in case of hot-humid climates or in the presence of perspiration
good biodegradability of the manufactured article at the end of the period of use
total recycling of the product
excellent reproduction of the mould designes
good adhesion with other materials
good surface for painting
good ratio weight/properties.
C.O.I.M. has the complete range of ester based systems for footwear and can develop taylor made products.
In particular it has:
indoor soles systems (slippers): characterized by their lightness and load bearing
medium performance systems, such as soles for women's shoes and men's summer shoes: articles in which density, load bearing, mechanical characteristics and flexural strength, from ambient temperature up to medium low temperatures, are present at the same time
high performance systems, for closed winter shoes for men, characterized by excellent flexural strength even at very low temperatures and/or high resistance to hydrolysis, keeping at the same time good load bearing and acceptable density
bidensity safety soles systems, having very good balance of the characteristics previously mentioned and having also good resistance to oils, solvents and hydrocarbons. Moreover the material is produced with antistatic characteristics (for avoiding the accumulation of electrostatic charges).
mono - bidensity soles systems for sport activities.
In particular they have excellent grip, resistance to wear, are lightweight with excellent elasticity.