4.1 PHTHALATES :-

PREFACE

Plasticizers are additives that soften the materials (usually a plastic or a concrete mix) they are added to. Although the same compounds are often used for both plastics and concretes, the desired effect is slightly different.

The plasticizers for plastics soften the final product increasing its flexibility. Plasticizers for concrete soften the mix before it hardens, increasing its workability, and are usually not intended to affect the properties of the final product after it hardens.

NNS Chemicals (Private) Limited. dealing with following types of Plasticizers:

• Dioctyl Phthalate (DOP)
  
• Diisononyl Phthalate (DINP)
  
• Dioctyl Adipate (DOA)
  
• Trioctyl Trimellitate (TOTM)
  
• Dibutyl Phthalate (DBP)
  
• Diisodecyl Phthalate (DIDP)
  
• Dioctyl Maleate (DOM)
  
• Diisononyl Adipate (DINA)

APPLICATIONS:

Phthalate-based plasticizers are used in situations where good resistance to water and oils is required. Some common phthalate plasticizers are:

Bis(2-ethylhexyl) phthalate (DEHP), used in construction materials, food packaging, children toys, medical devices, and cling wrap.

Diisononyl phthalate (DINP), found in garden hoses, shoes, toys, and building materials.

Bis(n-butyl)phthalate (DnBP, DBP), used for cellulose plastics, food wraps, adhesives, perfumes and also in cosmetics - about a third of nail polishes, glosses, enamels and hardeners contain it, together with some shampoos, sunscreens, skin emollients, and insect repellents.

Butyl benzyl phthalate (BBzP), is found in vinyl tiles, traffic cones, food conveyor belts, artificial leather and plastic foams.

Diisodecyl phthalate (DIDP), used for insulation of wires and cables, car undercoating, shoes, carpets, pool liners.

Di-n-octyl phthalate (DOP or DnOP), used in flooring materials, carpets, notebook covers, and high explosives, such as Semtex. Together with DEHP it was the most common plasticizers.

ORIGINS: KOREA (SOUTH) / IRAN

BRAND NAMES: DCC, KOREA / FARABI PETROCHEMICALS, IRAN