TDI - MDI - PTA

 

TDI DESCRIPTION:

Toluene Diisocyanates (TDI)

Toluene diisocyanate (TDI) is a chemical used in the production of polyurethanes, primarily for flexible foam applications including furniture, bedding and carpet underlay, as well as packaging applicationsTDI is also used in the manufacture of coatings, sealants, adhesives and elastomers.

TDI APPLICATION:

• Adhesive

• Fales ceiling

• Elastomers

DOWNLOAD  SPECIFICATION:    TDI

 

 

 

MDI

MDI DESCRIPTION:

Methylene diphenyl diisocyanate, most often abbreviated as MDI, is an aromatic diisocyanate. Three isomers are common, varying by the positions of the isocyanate groups around the rings: 2,2'-MDI2,4'-MDI, and 4,4'-MDI. The 4,4' isomer is most widely used. This isomer is also known as Pure MDI. MDI reacts with polyols in the manufacture of polyurethane. It is the most produced diisocyanate, accounting for 61.3% of the global market in the year 2000

 

The major application of 4,4'-MDI is the production of rigid polyurethane. Typically, one tonne of polyurethane foam needs 0.616 tonne of MDI and 0.386 tonne of polyol, with 0.054 tonne pentane as a blowing agent.[6] These rigid polyurethane foams are good thermal insulators and used in nearly all freezers and refrigerators worldwide, as well as buildings. Typical polyols used are polyethylene adipate (a polyester) and poly(tetramethylene ether) glycol (a polyether).

4,4'-MDI is also used as an industrial strength adhesive, which is available to end consumers as various high-strength bottled glue preparations

MDI APPLICATION:

• Raw material for production of various kinds of polyurethans

• Sponges

• adhesives

• Refrigerator parts

 

MDI SPECIFICATION:

 

PTA

PTA DESCRIPTION:

Production process for purified terephthalic acid (PTA)

Purified terephthalic acid (PTA) is a raw material used in making high-performance multi-purpose plastics such as polybutyl terephthalate(PBT), polyethylene terephthalate(PET), and the new bioplastic that has been garnering attention in recent years, polytrimethylene terephthalate(PTT). Purified terephthalic acid (PTA) is made by causing a reaction between the secondary petroleum product paraxylene (PX) and acetic acid. We have our own unique process for manufacturing purified terephthalic acid (PTA), and we license this process to our customers.

 

 

PTA SPECIFICATION

 

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