LATILON   
POLYCARBONATE (PC)

LATILON compounds are based on PC, polyester exhibiting a low tendency to form crystalline areas. The presence of a dyphenilic unit in the molecule improves impact resistance by far.

Main properties
  • Excellent impact resistance;
  • Excellent transparency (unfilled versions);
  • Good mechanical properties;
  • High dimensional stability;
  • Low moisture absorption;
  • Good to very good UV resistance;
  • Low smoke density.

Notes
The main property of LATILON compounds is the excellent impact resistance even at low temperatures. Levels of moisture absorption are low, but compounds should not be used in contact with hot water (above 50°C), because of the poor hydrolysis resistance. Dimensional stability is high; ageing resistance is excellent if parts are produced without internal stresses. Base resin fluidity can be optimised according to the needs. The high chemical resistance / price ratio allows LATILON compounds to be used in a wide range of applications.

Reinforced grades
LATILON compounds can be reinforced with glass and/or carbon fibres, which improve material stiffness. Presence of fibrous fillers requires a particular care of design to reduce differential shrinkage and part warpage.

Flame retardant grades
Base resin is inherently flame retardant at a good level. Improved types (UL94-V0 classifiable) are obtained by adding specific additives.

Self-lubricant grades
Family products with better self-lubricating properties are available by adding substances able to improve the tribological properties of the material. These grades are suitable for plastic-metal or plastic-plastic contact applications. Compounds able to fulfil specific requirements concerning wear resistance and friction factor can also be formulated. For more information, please check LATILUB grades.

Electrically antistatic / partially conductive / dissipative grades
LATILON compounds can also be obtained in antistatic, partially conductive or dissipative versions, even reinforced. See LATISTAT and LATIOHM families to find these grades.

E.M.I. Shielding properties
Check LATISHIELD family for more information about products with E.M.I. shielding properties.

Blends
In order to further improve flexibility in material use, blends obtained by mixing PC with other base resins have been formulated. See LATIBLEND family.

Moulding
Cracking or long-term rupture due to internal residual stresses can be found. In order to prevent or reduce such phenomena, careful part design and correct moulding are required. Eventually, annealing parts at 120°C (1 hour per mm of wall thickness) allows reducing residual stresses.

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