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Desmophen® 1159 S - for flexible slabstock foams

An inactive trifunctional polyether modified with a styrene-acrylonitrile (SAN) polymer. It is specifically designed for the production of conventional flexible slabstock foams with enhanced loadbearing properties, using CO2-technologies due to its appropiate particle size distribution. It exhibits a broad processing range and allows the use of most commercially available silicone surfactants and tertiary amine catalysts. Hydroxyl Number ca. 43 mg KOH/g

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About

Product Types

No data available

Material

Foams
Slabstock

General Characterization

DESMOPHEN® 1159 S is an inactive trifunctional polyether modified with a styrene-acrylonitrile (SAN) polymer with a solid content of approx. 10% by weight. It is specifically designed for the production of conventional flexible slabstock foams with enhanced loadbearing properties, using CO2-technologies due to its appropiate particle size distribution. It exhibits a broad processing range and allows the use of most commercially available silicone surfactants and tertiary amine catalysts.

Storage Conditions

Recommended storage temperature (°C): 10 - 35
Shelf life (ex works)
12 months if stored in sealed, moisture-tight containers
Partially used containers should be tightly resealed due to the hygroscopic nature of the product.
Recommended temperature for processing (°C): 20 - 25.

Sampling

Moisture access must be prevented when taking product samples.

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Density 25 °C DIN 51757 g/cm³ 1.022
TDI basic value pbw Desmodur® T on100 pbw DESMOPHEN® 1159S 6.7
Appearance PET-03-04 opaque white liquid

Specifications

Property Name Test Method Unit Value
Hydroxyl number PET-11-01 mg KOH/g 41.5 - 45.5
Hydroxyl number PET-11-01 mg KOH/g 41.5 - 45.5
Viscosity 25 °C PET-10-01 mPa*s 780 - 1020
Water content PET-19-01 % by wt. ≤ 0.10
Viscosity 25 °C PET-10-01 mPa*s 780 - 1020
Water content PET-19-01 % by wt. ≤ 0.10

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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