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Polymer Additives

Capa™ 2201

Technical DataSheet | Supplied by Perstorp

Capa™ 2201 by Perstorp is a standard grade linear polyester diol derived from caprolactone monomer, terminated by primary hydroxyl groups. Exhibits outstanding flexibility even at low temperatures, low viscosity, gloss, hydrolytic stability, excellent strength, UV resistance and abrasion resistance. It shows a lasting outdoor performance for polyurethane materials. It has low impurities and is non-toxic, biodegradable, easy to process with short cycle times, shape and apply. Provides strong adhesion on difficult and sensitive substrates and shows consistent crystallization. It possesses excellent mechanical properties even at low density, wide interval of service temperatures, consistent and narrow molecular weight distribution and consistent reactivity. It helps in remarkable cold flex fatigue, improved compression sets and improved tear strength. The product has been specially developed as a low reactivity alternative to Capa™ 2200 for use in cast polyurethanes where extended processing times are required. In addition, Capa™ 2201 also provides much more easily controlled pre-polymer manufacture. Applications include automotive components, automotive industry, footwear industry.

Capa™ 2201 Product details

Product Type
  • xxxxxxxxxxxxxxxxxxxxxxxx
  • xxxxxxxxxxxxxxxxxxxxxxxxx
Chemical Composition
CAS Number
Physical Form
Solid, Waxy
Product Status
Labels/Agency Rating

Capa™ 2201 Properties


Value & Unit
Test Condition
Test Method
Mean molecular weight
Hydroxyl value, S11502 MW101
xxxxxxx mg KOH/g
Acid value, S11502 M3A
xxxxxx mg KOH/g
Water content, S11502 MW102
xxxxxx %
Viscosity @ 60°C
xxx mPa.s
Melting point
xxxxxxx °C
Color, S11502 M33C
xxxx Hazen
Solubility parameter (δ)
xxxxxxxxxx (cal/cm3)1/2
Last edited Apr 25, 2018
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