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Desmodur® CQ is a Covestro family of more sustainable isocyanate crosslinkers used mainly in coatings and adhesives.
Desmodur® CQ products can be based on MDI, TDI, blocked isocyanates or HDI-type crosslinkers, depending on the grade.
Desmodur® CQ grades take part of their raw materials from renewable or circular feedstocks.
CAS Number: -
EC Number: -
Molecular Formula: -
Molecular Weight: -
Synonyms: Desmodur CQ, Desmodur® CQ 2460 M MB, Desmodur® CQ BL 7175, Desmodur® CQ T 80 MB, Desmodur® CQ ultra N 7300, Isocyanate crosslinker, Covestro CQ crosslinker
Desmodur® CQ is supplied by Covestro as a range of crosslinkers rather than as a single product.
Desmodur® CQ grades differ in their isocyanate chemistry, so the exact properties of each grade should be taken from its technical data sheet.
Uses of Desmodur® CQ:
Desmodur® CQ is used mainly as an isocyanate crosslinker in coatings.
Desmodur® CQ is used mainly as an isocyanate crosslinker in adhesives.
Desmodur® CQ offers a more sustainable alternative to conventional isocyanate crosslinkers by using renewable or circular feedstocks for part of its raw materials.
Desmodur® CQ grades are chosen according to the isocyanate type required by the coating or adhesive system.
Benefits or Advantages of Desmodur® CQ:
Desmodur® CQ is a more sustainable range of crosslinkers because part of its raw material comes from renewable or circular feedstocks.
Desmodur® CQ offers a choice of MDI, TDI, blocked isocyanate and HDI-type chemistries within one product family.
Features of Desmodur® CQ:
Desmodur® CQ contains reactive isocyanate groups and is sensitive to moisture.
Covestro specifically notes the moisture sensitivity of several Desmodur® CQ grades.
Chemical Properties of Desmodur® CQ:
Desmodur® CQ isocyanate groups can react with water, alcohols, amines and other compounds containing active hydrogen.
Desmodur® CQ reactions with moisture may release heat and carbon dioxide.
Desmodur® CQ is a product family and therefore has no single CAS number, EC number, molecular formula or molecular weight.
Desmodur® CQ composition differs by grade, so the exact composition should be taken from the supplier's safety data sheet.
SDS of Desmodur® CQ:
Stability and Reactivity of Desmodur® CQ:
Chemical stability:
Desmodur® CQ is stable under recommended storage and handling conditions.
Reactivity:
Desmodur® CQ isocyanate groups can react with water, alcohols, amines and other compounds containing active hydrogen, potentially releasing heat and, in contact with moisture, carbon dioxide.
Conditions to avoid:
Desmodur® CQ should be kept away from moisture, excessive heat and contamination.
Desmodur® CQ should not be exposed for long periods to temperatures outside the recommended storage range.
Incompatible materials:
Desmodur® CQ is incompatible with water, alcohols and amines.
Desmodur® CQ is incompatible with strong bases, strong acids and other highly reactive substances.
Handling and Storage of Desmodur® CQ:
Safe handling:
Desmodur® CQ vapors or aerosols should not be inhaled, and contact with the skin and eyes should be prevented.
Desmodur® CQ should be used only with adequate ventilation.
Storage conditions:
Desmodur® CQ should be stored in the original tightly closed container in a dry, well-ventilated area.
Desmodur® CQ should be protected from moisture, heat and foreign materials.
First Aid Measures of Desmodur® CQ:
Inhalation:
After inhalation of Desmodur® CQ vapors or aerosols, move the person to fresh air.
Desmodur® CQ exposure that causes respiratory symptoms calls for medical attention.
Skin contact:
After skin contact with Desmodur® CQ, remove contaminated clothing.
Desmodur® CQ skin contact calls for thorough washing of the affected skin with soap and water.
Eye contact:
After eye contact with Desmodur® CQ, rinse cautiously with plenty of water for several minutes.
Desmodur® CQ eye contact calls for medical attention if irritation persists.
Ingestion:
After ingestion of Desmodur® CQ, rinse the mouth and seek medical advice.
Desmodur® CQ ingestion should not be followed by induced vomiting unless directed by medical personnel.
Firefighting Measures of Desmodur® CQ:
Suitable extinguishing media:
Desmodur® CQ fires can be fought with water spray, dry chemical, carbon dioxide or suitable foam, according to the surrounding fire conditions.
Protective equipment:
Desmodur® CQ fires require firefighters to wear suitable protective clothing and self-contained breathing apparatus.
Hazardous combustion products:
Desmodur® CQ combustion may produce carbon oxides and nitrogen oxides.
Desmodur® CQ combustion may also produce isocyanate-containing fumes and other irritating or toxic decomposition products.
Accidental Release Measures of Desmodur® CQ:
Personal precautions:
Desmodur® CQ spill response calls for adequate ventilation and avoidance of inhalation of vapors or aerosols.
Desmodur® CQ spill response calls for suitable personal protective equipment.
Cleanup methods:
Desmodur® CQ spills should be contained and absorbed with a suitable inert material.
Desmodur® CQ spilled material should be transferred to an appropriate waste container while preventing contact with moisture.
Environmental precautions:
Desmodur® CQ should not enter drains, waterways or soil in significant quantities.
Exposure Controls / Personal Protective Equipment of Desmodur® CQ:
Engineering controls:
Desmodur® CQ operations need effective local exhaust or general ventilation, especially where vapors or aerosols may be generated.
Eye protection:
Desmodur® CQ handling calls for suitable chemical safety goggles.
Hand protection:
Desmodur® CQ handling calls for appropriate chemical-resistant gloves.
Body protection:
Desmodur® CQ handling calls for suitable protective work clothing.
Respiratory protection:
Desmodur® CQ handling calls for suitable respiratory protection where ventilation is inadequate.
Desmodur® CQ handling calls for suitable respiratory protection wherever isocyanate vapors or aerosols may be generated.
Properties of Desmodur® CQ:
Supplier: Covestro
Chemical type: Isocyanate crosslinkers (MDI, TDI, blocked isocyanate or HDI-type, depending on the grade)
Main application: Coatings and adhesives
Raw materials: Partly from renewable or circular feedstocks
Names of Desmodur® CQ:
Desmodur® CQ
Desmodur CQ
Desmodur® CQ 2460 M MB
Desmodur® CQ BL 7175
Desmodur® CQ T 80 MB
Desmodur® CQ ultra N 7300
Isocyanate crosslinker
