China (Mainland)
Bayer DESMODUR RN CAS NO.141-78-6
- FOB Price: USD: 12.06-13.74 /Metric Ton Get Latest Price
- Min.Order: 15 Kilogram
- Payment Terms: L/C,D/A,D/P,T/T,MoneyGram,Other
- Available Specifications:
industrial(15-200000)Metric Tonindustrial(200000-800000)Metric Ton
- Product Details
Keywords
- DESMODUR RN
- Polyisocyanate Crosslinking
- bayer Crosslinking
Quick Details
- ProName: Bayer DESMODUR RN
- CasNo: 141-78-6
- Appearance: virtually colorless to slightly yellow...
- Application: Desmodur RN polyisocyanate is a suitab...
- DeliveryTime: 15 days
- PackAge: 15kg
- ProductionCapacity: 500 Metric Ton/Day
- Purity: 40%
- Storage: stored in its sealed original containe...
- Transportation: by express delivery or sea shippin...
- LimitNum: 15 Kilogram
- Grade: Industrial Grade
- NCO content of solution: 7.2
Superiority
Desmodur RN polyisocyanate is a solution of
polyisocyanurate with aliphatic and aromatic NCO
groups in ethyl acetate.
Application
Desmodur RN polyisocyanate is a suitable crosslinker
for adhesives based on Desmocoll polyurethane,
natural rubber or synthetic rubber. Desmodur RN
polyisocyanate is especially useful for crosslinking
pale-colored adhesives used to bond rubber-based
materials. The use of Desmodur RN polyisocyanate
with suitable adhesives yields bonds, which undergo
minimal discoloration on exposure to light.
After adding Desmodur RN polyisocyanate to a
polyurethane or rubber-based adhesive, the ready-to-
use two-component mixture must be used within its
pot life. Pot life is not only governed by the polymer
content of the adhesive but also by its other compo-
nents (resins, antioxidants, plasticizers, solvents, etc.).
At the end of the pot life, which can vary from
several hours to one working day, the adhesive
becomes increasingly difficult to process and its
viscosity increases rapidly. Finally, irreversible gelling
occurs. The following guide values are suggested for
determining the amount of crosslinker to be used.
Amounts given are parts by weight (pbw).
To crosslink 100 pbw adhesive: Desmocoll®
(hydroxyl
polyurethane) based adhesives (containing 20%
polyurethane) should be crosslinked with 4 - 7 pbw
Desmodur RN polyisocyanate. Baypren®
(polychloroprene rubber) based adhesives (containing
approximately 20% rubber content) should be
crosslinked with 4 - 7 pbw Desmodur RN
polyisocyanate.
Details
Product Specifications
Property Value
NCO content of solution
(DIN EN ISO 11 909,
Annex A)(%) 7.2 ± 0.3
Typical Properties*
Property Value
Form supplied approx. 40% in ethyl acetate
Non-volatile content
(DIN EN ISO 3251) approx. 40%
Density at 20°C (DIN 53 217/5) approx. 1.04 g/cm³
Viscosity at 20°C (DIN 53 015) approx. 11 mPa•s
Solvent ethyl acetate
Flash Point (DIN 51 755) -5°C
Appearance virtually colorless to
slightly yellowish liquid