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Impranil® DAH is an anionic, aromatic polyether-polyurethane dispersion primarily used as a flexible tie coat in the production of materials for outerwear, bags/luggage, shoes, and athletic shoes. Here's a summary of its key features:

Characterization: Impranil® DAH is an anionic, aromatic polyether-polyurethane dispersion.

Form Supplied: It is supplied as a white low-viscosity dispersion in water with a solids content of approximately 35%.

Specification:

• • Viscosity: 250 - 800 mPa·s at 23°C
  • pH: 8 ± 1
  • Non-volatile content: 35 ± 1%

Special Properties:

• • Free from organic solvents and emulsifiers
  • Acts as a tie coat for Impranil High Solid products
  • Good adhesion

Film Properties:

• • 100% modulus: ~2 MPa
  • Tensile strength: ~10 MPa (original)
  • Elongation at break: ~700%
  • Volume swelling: Varies with different solvents, with ethyl acetate causing around 150% swelling and water causing around 6% swelling.

Storage: It should be stored in the original sealed Covestro container at a recommended temperature of 5 - 30°C and protected from frost, heat, and foreign material.

Impranil® DAH provides good adhesion and flexibility, making it suitable for various applications in textile and footwear manufacturing.

Impranil® C Solution is a polyester urethane adduct based on toluene diisocyanate, designed to be crosslinked with a polyisocyanate before use. Here's a breakdown of its characteristics and applications:

Characterization: Impranil® C Solution is a polyester urethane adduct based on toluene diisocyanate, requiring crosslinking with a polyisocyanate before application. It's suitable for formulating coatings with a medium-hard handle for various textile applications.

Form Supplied: It is supplied as a 30% solution in ethyl acetate.

Specification:

• • Viscosity: 27,000 - 53,000 mPa·s at 23°C
  • Non-volatile content: 30 ± 1%

Special Properties:

• • Good adhesion
  • Resistance to hydrolysis
  • Good weather stability
  • High abrasion resistance
  • Resistance to dry cleaning

Film Properties:

• • 100% modulus: 4 MPa
  • Tensile strength: 45 MPa (original)
  • Elongation at break: 400%
  • Lightfastness: 4

Applications: Impranil® C coatings can be applied by direct and transfer coating processes. The addition of specific crosslinkers and catalysts is necessary to achieve the desired properties.

Storage: It should be stored in the original sealed Covestro container at room temperature (20°C) and protected from moisture, heat, and foreign material. Proper sealing of containers is essential to prevent solvent evaporation.

Impranil® C Solution offers a range of desirable properties for textile coatings, providing medium-hard coatings with excellent durability and resistance to environmental factors.

Impranil® C is a polyester urethane adduct based on toluene diisocyanate, designed to be crosslinked with a polyisocyanate before use. Here's a summary of its characteristics and applications:

Characterization: Impranil® C is a polyester urethane adduct based on toluene diisocyanate, requiring crosslinking with a polyisocyanate before application.

Application: It's suitable for formulating coatings with a medium-hard handle for various textile applications, including:

• • Protective clothing
  • Sportswear
  • Tarpaulins
  • Covers for containers
  • Light conveyor belts
  • Ironing board covers
  • Camping articles
  • Awnings
  • Fire hoses
  • Tent materials
  • Sleeping bag undersides

Form Supplied: It is supplied in pellet form and also available as a 30% solution in ethyl acetate (Impranil® C solution).

• Special Properties:
  • Good adhesion
  • Resistance to hydrolysis
  • Weather stability
  • High abrasion resistance
  • Resistance to dry cleaning

Film Properties: Impranil® C yields medium-hard films resistant to hydrolysis and weathering. Key properties include:

• • 100% modulus: 4 MPa
  • Tensile strength: 45 MPa (original)
  • Elongation at break: 400%
  • Lightfastness: 4

Processing/Application: Suitable solvents for Impranil® C include butyl acetate, ethyl acetate, methyl ethyl ketone, acetone, toluene/acetone (3:1), and dimethylformamide/methyl ethyl ketone (1:1). It requires specific additives for processing, including a crosslinking agent and catalyst.

Applications: Impranil® C coatings can be applied by direct and transfer coating processes. It's essential to prepare only the amount of coating that can be used within its pot life after adding crosslinking agents and catalysts.

Storage: Recommended storage conditions include storing in the original sealed Covestro container at room temperature (20°C) and protecting from moisture, heat, and foreign materials.

In summary, Impranil® C offers a range of desirable properties suitable for various textile coating applications, providing medium-hard coatings with excellent durability and resistance to environmental factors.

Impranil® 43031 Solution is a one-component polyester urethane based on an aliphatic diisocyanate. It's primarily used as a topcoat and finish for PVC coatings that require high surface smoothness and reduced migration of PVC plasticizers. Here's a summary of its key features:

• Characterization: Impranil® 43031 solution is described as a one-component polyester urethane based on an aliphatic diisocyanate.
• Application: It is utilized as a topcoat and finish for PVC coatings needing high surface smoothness and reduced PVC plasticizer migration. Additionally, it's suitable for topcoats for lining materials, especially for shoe linings with adhesive polyurethane coatings, and for polyurethane, PVC, and polyacrylate foams on various substrates.
• Form Supplied: It is supplied as approximately 25% solution in isopropanol/toluene/1-methoxypropanol-2.
• Special Properties:
  • Provides a very dry handle.
  • Offers high surface slidability.
  • Exhibits low swelling in PVC plasticizers.
  • Has a high melting range.
  • Demonstrates very high lightfastness.
• Processing/Application: It can be thinned with specific solvent mixtures to achieve the desired brush viscosity. The surface finish and handle of the coating can be adjusted by mixing with other solutions.
• Storage: It's recommended to store Impranil® 43031 Solution in its original sealed Covestro container at room temperature (around 20°C) and protect it from moisture, heat, and foreign materials.
• Storage Time: Covestro indicates that the product will maintain its specifications for up to twelve months if stored correctly.

Impranil® 43031 Solution appears to be a versatile and effective solution for various coating applications, offering specific properties such as high surface smoothness and low plasticizer migration in PVC coatings.