26948-92-5 / 108-95-2 / 26471-62-5

CAS Nr.:

26948-92-5 / 108-95-2 / 26471-62-5

Phenol / m-tolylidene diisocyanate

EINECS Name:

Phenol / m-tolylidene diisocyanate

203-632-7 (Phenol) / Noch nicht vergeben (m-tolylidene diisocyanate)

EINECS Nr.:

203-632-7 (Phenol) / Noch nicht vergeben (m-tolylidene diisocyanate)

AP / ISO Stable / DESMODUR AP / phenolblockiertes Polyisocynanat / DESMODUR AP / Phenol blocked polyisocyanate

Synonym:

AP / ISO Stable / DESMODUR AP / phenolblockiertes Polyisocynanat / DESMODUR AP / Phenol blocked polyisocyanate

Phenol-blocked isocyanate, with CAS number 108-95-2, is an important chemical raw material used in various industrial applications. This specific type of isocyanate is characterized by its blocked form, which simplifies handling and storage while controlling its reactivity.

Physical Properties of Phenol-Blocked Isocyanate

Phenol-blocked isocyanate is typically a clear to slightly yellow liquid or a solid material, depending on its specific chemical composition. Blocking with phenol inhibits the reactivity of the isocyanate under normal conditions. This means that the isocyanate is released only at higher temperatures or under specific conditions, allowing for a controlled reaction. It has moderate viscosity and is well soluble in organic solvents. Additionally, it exhibits good thermal stability, making it a reliable raw material in various industrial processes.

Applications of Phenol-Blocked Isocyanate

In the coatings and paints industry, phenol-blocked isocyanate is commonly used to create heat-activated protective layers. These coatings are highly resistant to chemicals and mechanical stress. They are primarily used in the automotive and metal industries, where durable and robust surfaces are required.

Phenol-blocked isocyanate is also used in the production of adhesives, particularly for heat-activated adhesive systems. These adhesives offer strong bonding and resistance to moisture and chemicals, making them ideal for demanding industrial applications. They are especially valued in the electronics and furniture industries for their excellent performance.

In the production of polyurethane foams, phenol-blocked isocyanate is used to control processing time and conditions. Blocking allows for a more precise control of the foaming process, resulting in more homogeneous and high-quality foams. These foams are used in a variety of applications, from upholstered furniture to insulation materials.

In the construction industry, phenol-blocked isocyanates are used to produce sealants, which are especially utilized in demanding environments. These sealants offer excellent adhesion and flexibility, making them ideal for joints and connections exposed to significant thermal and mechanical stresses.

In summary, phenol-blocked isocyanate is an indispensable raw material in many industrial applications due to its controllable reactivity and versatile properties. Its ability to produce stable and resilient products makes it an essential component in modern manufacturing and processing.