Polyurethane Isocyanate Polymeric Mdi for Spray Foam in Construction in Wall and Roof

• Customization: Available
• CAS No.: 9016-87-9
• Formula: C15h10n2o2
• Model NO.: 44V20L
• EINECS: 210-898-8
• Source: Organic Acids
• Appearance: Oily Liquid
• Grade Standard: Industrial Grade
• Colour: Brown
• Package: 250kgs/Drum
• Load: 80 Drums/20FCL
• Transport Package: Steel Drum
• Specification: 250kgs/drum
• Trademark: Covestro, Kumho Mitsui
• Origin: China/Korea
• HS Code: 3909310000
• Production Capacity: 10000tons/Year

Product Description

Product Description

Introduction
Desmodur ® 44V20L is a dark-brown, liquid blend of  diphenylmethane-4,4'-diisocyanate (MDI) with isomer and homologues of higher functionality. It is used in conjunction with polyols to produce rigid polyurethanes foam. Sampling Moisture access must be prevented when taking product samples

Product Parameters

Specification property	Value	Unit of measurement	Method
NCO content	30.50-32.50	% by wt.	MDI-01-01
Viscosity at 25ºC	160.0-240.0	mPa.s	MDI-01-02
Acidity(HCL)	≤ 200	mg/kg	MDI-01-03

 

Other Data Property	Value	Unit of measurement	Method
Density at 20ºC	approx. 1.2.3	g/cm3	DIN51757
Phenyl Isocyanate content	≤50	ppm	2011-0489801-95
Specific Heat(cp)	approx.1.51	kJ/kg.K
Coefficient of thermal expansion	6.59X10-4	K-1

*These values provide general information and are not part of the product specification

Packaging & Shipping

Packaging
Drums,IBCs,tank containers and tank wagons
Storage
Recommended storage temperature:+10 to +30ºC, storage stability(ex works): 6 months if stored in moisture-tight drums

Desmodur ® 44V20L may undergo partial crystallization at temperatures below 00C.The product can ,however, be brought back into the liquid state by heating the entire contents of the drum for short time to a maximum of 700C, 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 Desmodur ® 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 drum 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 Desmodur ® 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 Profile