Perstorp TMP, Neo and Penta Polyols, PVC Plasticizers and Synthetic Esters

Selection and quotation of Perstorp chemicals: trimethylolpropane, neopentyl glycol, pentaerythritol, Di-TMP, Emoltene and Pevalen plasticizers, Synthetic-EF esters.

Trimethylolpropane TMP Flakes and Molten

Trimethylolpropane is a polyhydric alcohol with three equally reactive hydroxyl groups for crosslinking polyesters, polyurethanes and acrylates. It serves coil coating polyesters, alkyds, polyurethane coatings, radiation curing acrylates and synthetic lubricant esters. It comes as flakes or molten.

Hydroxyl number 1238–1260 mg KOH/g
Melting point min. 57 °C
Ash max. 10 ppm, water max. 0.10%
25 kg bags and 500 kg big bags

Neopentyl Glycol Neo and Neo 90 Solution

Neopentyl glycol is a diol with two primary hydroxyl groups giving polyesters UV, hydrolytic and chemical resistance. Uses: saturated polyesters for powder and coil coatings, unsaturated polyesters for gel coats and reinforced plastics, and synthetic lubricant esters. Neo 90 is an aqueous solution.

Neo content min. 99.0%
Melting point min. 124 °C
Hydroxyl number approx. 1075 mg KOH/g
Neo 90: 90% aqueous solution

Pentaerythritol Penta Mono and Di-Penta 93

Pentaerythritol is a non-hygroscopic powder with four equally reactive primary hydroxyl groups for alkyds, liquid polyesters, radiation curing monomers, polyurethanes, rosin and lubricant esters. Di-pentaerythritol with six hydroxyl groups serves radiation curing, lubricants and high solids alkyds.

Penta mono: min. 98.0% content
Penta mono: hydroxyl number 1625–1650
Di-Penta 93: min. 92.0% content
Di-Penta 93: hydroxyl number 1310–1340

Di-Trimethylolpropane Di-TMP and Polyol PX

Di-TMP is the trimethylolpropane dimer with four primary hydroxyl groups, in white flakes. It serves acrylic monomers and oligomers for radiation curing, specialty coating resins and synthetic lubricants. Polyol PX is a polyhydric alcohol mass for phenolic and polyester resins.

Di-TMP: hydroxyl number 880–910 mg KOH/g
Di-TMP: melting point 106–115 °C
Di-TMP: approx. 98% content
Polyol PX: phenolic and polyester resins

Voxtar, Evyron and Neeture Renewable Polyols

Pro-Environment polyols are based on renewable feedstock allocated by the mass balance concept: Voxtar M100 is pentaerythritol, Evyron T100 is trimethylolpropane and Neeture N100 is neopentyl glycol. They drop into existing formulations, and Voxtar M100 shares the sales specification of Penta mono.

Voxtar M100: 100% renewable carbon
Voxtar M100: up to 75% lower carbon footprint
Evyron T100: TMP flakes and molten
Neeture N100: flakes, molten, 90% solution

Emoltene 100 and Pevalen PVC Plasticizers

Emoltene 100 is a C10 DPHP plasticizer for cables, roofing membranes and automotive interiors where UV and weather resistance, low volatility and low migration matter. Pevalen is a non-phthalate plasticizer for flexible PVC: coated fabrics, plastisols, film and flooring.

Emoltene 100: ester content min. 99.5%
Emoltene 100: 120–130 mPa·s at 20 °C
Pevalen: pour point −69 °C
Pevalen: density 1020 kg/m³ at 20 °C

2-Ethylhexanoic Acid and Emoltene 3GO

2-Ethylhexanoic acid (2-EHA) is a colorless liquid with one carboxylic group on a C8 chain. It is used in esters for PVB film plasticizers and synthetic lubricants, metal soaps for paint driers, automotive coolants and PVC stabilizers. Emoltene 3GO is a PVB film plasticizer for safety glass.

2-EHA: purity min. 99.5%
2-EHA: acid value 382–395 mg KOH/g
Emoltene 3GO: 3G8 content min. 97.0%
Emoltene 3GO: density 967 kg/m³

Synthetic-EF Esters and Synmerse DC Fluid

Saturated synthetic esters for lubricant formulations: Synthetic-EF 5 for low temperatures, Synthetic-EF 15 as a polyol ester base oil and dielectric fluid, Synthetic-EF 22 for a wide temperature range. Synmerse DC is a PFAS-free fluid for immersion cooling of servers.

Synthetic-EF 5: pour point below −70 °C
Synthetic-EF 22: OECD 301-B biodegradable
Synthetic-EF 15: not hazardous per GHS rev. 7
Synmerse DC: PFAS-free server cooling

Choosing a Polyol by Functionality and Hydroxyl Number

Functionality sets the crosslink density: neopentyl glycol Neo has two primary hydroxyl groups, trimethylolpropane TMP three, pentaerythritol and Di-TMP four, di-pentaerythritol six. Per Perstorp specifications the hydroxyl number is approx.

1075 mg KOH/g for Neo, 1238–1260 for TMP, 1625–1650 for Penta mono, 880–910 for Di-TMP and 1310–1340 for Di-Penta 93.

Neo is chosen for powder and coil coating polyesters that need UV and hydrolytic resistance; TMP for alkyds, polyurethanes and acrylates; Penta for alkyds and rosin esters; Di-TMP and Di-Penta for radiation curing monomers.

Di-Penta dust can form explosive mixtures with air, so unloading needs verified grounding.

Polyols and Acids for Ester Lubricants

Polyol ester base oils are made from TMP, Neo, pentaerythritol or di-pentaerythritol and carboxylic acids. Among TMP applications the manufacturer lists aviation turbine oils, and 2-ethylhexanoic acid serves synthetic lubricant esters; it ships in 210 kg drums and 910 kg IBCs.

TMP and Neo are hygroscopic and are kept in sealed factory packaging. For lubricant formulations Perstorp also offers ready Synthetic-EF esters: Synthetic-EF 15 is not classified as hazardous under GHS version 7, and Synmerse DC is tested for material compatibility with typical server components.

Perstorp application labs operate in Europe and Asia.

PVC Plasticizer: Emoltene 100 or Non-Phthalate Pevalen

Emoltene 100 is a C10 general-purpose plasticizer with a molecular weight of 446.7 g/mol and a density of 960–965 kg/m³ at 20 °C; it is chosen for long outdoor service in cables, roofing membranes and automotive interiors. Pre-stabilized grades exist for compounds used at elevated temperatures.

Emoltene 100 can be stored at temperatures up to 40 °C. Pevalen is a non-phthalate plasticizer with a viscosity of 35 mPa·s and a boiling point of 408 °C for coated fabrics, plastisols and flooring; it complies with EN 71-3 for heavy metals.

Pevalen is hygroscopic and is stored dry, preferably below 30 °C.

Renewable Polyols and Mass Balance

Perstorp launched the renewable pentaerythritol Voxtar in 2010 and brought the Pro-Environment Polyols range to market in 2017. Renewable feedstock is allocated by the mass balance concept, so Voxtar M100 keeps the Penta mono specification: min.

98.0% content and a hydroxyl number of 1625–1650 mg KOH/g. The product carbon footprint of Voxtar M100 including biogenic CO₂ uptake is −0.4 kg CO₂eq per kilogram.

Evyron T100 based on TMP and Neeture N100 based on Neo follow the same approach and drop into existing formulations without process changes. Grade and equivalent are checked against the TDS and the sustainability declaration.

Perstorp and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Perstorp and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.