Polyester polyols for TPU, elastomers and synthetic leather.
Aliphatic polyester polyols for TPU resins, PU elastomers and synthetic (PU) leather. 6 grades, OH 50 to 116 mg KOH/g.
TPU, elastomers and synthetic leather: 6 grades
Typical values. Each row has its own Request TDS / sample button.
| GradeTDS and samples | Type | OH valuemg KOH/g | Acid valuemg KOH/g | ViscositymPa·s at °C | Avg MWg/mol | Main use |
|---|---|---|---|---|---|---|
| NGC Ester 71255BRequest TDS / sample | aliphatic | 54–58 | < 0.5 | 2,000–2,500 at 50 °C | 2,050 | TPU resins, footwear, synthetic leather |
| NGC Ester 73255BRequest TDS / sample | aliphatic | 54–58 | < 1.0 | 6,000–7,000 at 35 °C | 2,000 | TPU and footwear, better hydrolysis |
| NGC Ester 72120BRequest TDS / sample | aliphatic | 108–116 | < 0.5 | 100–300 at 75 °C | 1,000 | TPU resins, adhesives, synthetic leather |
| NGC Ester 72156BRequest TDS / sample | aliphatic | 50–55 | < 0.5 | 1,350–1,650 at 60 °C | 2,250 | TPU resins, adhesives, synthetic leather |
| NGC Ester 71156Request TDS / sample | aliphatic | 54–58 | ≤ 1.0 | 500–700 at 75 °C | 2,000 | TPU, synthetic leather |
| NGC Ester 73160Request TDS / sample | aliphatic | 58–63 | < 1.6 | 19,000–24,000 at 25 °C | 2,580 | Hot-cast elastomer, footwear, flexible foam |
Also used here (2)
These grades are listed under another use, and also work here.
| GradeTDS and samples | Type | OH valuemg KOH/g | Acid valuemg KOH/g | ViscositymPa·s at °C | Avg MWg/mol | Main use |
|---|---|---|---|---|---|---|
| NGC Ester 74055Request TDS / sample | aliphatic | 54–58 | < 0.7 | 2,900–3,600 at 35 °C | 2,000 | Footwear soles, synthetic leather |
| NGC Ester 72140BRequest TDS / sample | aliphatic | 38–42 | < 0.5 | 2,700–3,300 at 60 °C | 2,800 | Adhesives and TPU |
Typical values, not a specification. The TDS for your order is the agreed specification. Packaging, lead time and REACH status are confirmed with each quotation. Always trial before use.
Send us your current grade and TDS. We match it.
We compare OH value, acid value, viscosity and use, suggest the closest grade, and send a sample for your trial.
Downloads
Polyester polyols catalogue (NGC Ester), Issue 3
All 63 polyester polyol grades, ordered by use: rigid foam, hot-melt adhesives, adhesives and coatings, TPU and elastomers, footwear soles and flexible foam.
8 pages · 243 KB · PDF
Download PDFOther polyester polyol uses
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Tell me your process and the grade you use today. I'll match a grade, send the TDS and SDS, and confirm sample timing in writing.
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