Polymeric MDI of 44V20L
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| Post Date: | Feb 21,2017 |
| Expiry Date: | Aug 20,2017 |
| Detailed Description: |
Quantity: 1000Metric Tons Price:3500 USD Metric Tons Payment Method: T/T or L/C 44V20L is a liquid, dark brown mixture of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality. It is used in conjunction with polyols to produce rigid polyurethane foams. 44V20L may undergo partial crystallization at temperatures below 0 °C. The product can, however, be brought back into the liquid state by heating the entire contents of the drum for a short time to a maximum of 70 °C, although this may lead to an increase in the solids content. Drums including empty ones should always be kept tightly sealed. The product should never be allowed to come into contact with water, which reacts with 44V20L to form polyureas and carbon dioxide. Contact with water in any form (damp drums, solvents containing water, moist air) must be prevented not only during storage, but also when removing material from drums and during processing. Failure to do so may lead to a dangerous build up of pressure in tanks and drums due to the generation of carbon dioxide. In addition, polyureas forming in 44V20L can cause solids to separate out, leading to blockages in the filters, pumps and pipelines of the processing equipment and resulting in production problems. |
| Company: | Yantai shunda polyurethane co.,ltd [ China ] |
| Contact: | Yolanda |
| Tel: | +86 535-6739386 |
| Fax: | +86 535-6746092 |
| Email: | yolanda@sdpu.cn |
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