Natrosol 250 HBR

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Description

Natrosol™ 250 HBR is a product manufactured by Ashland, classified as a water-soluble hydroxyethylcellulose. This polymer is used primarily as a thickener, water retention aid, and rheology modifier in various water-based formulations. It provides a well-balanced performance in terms of ease of manufacture, biodegradation resistance, thickening efficiency, color acceptance, and open time.

Key Characteristics:

Product Type: Natural-based Polymers > Cellulose Ethers > Hydroxyethylcellulose
Chemical Composition: Hydroxyethylcellulose
CAS Number: 9004-62-0
Physical Form: Available in powder or granules
Appearance: Off-white
Product Status: Commercial

Properties:

Density: 1.38 g/cm³
pH (2% Aqueous Solution): 6 - 8.5
Solubility:
- Soluble in: Water
- Insoluble in: Organic Solvents

Applications/Recommended Uses:

Water-Based Adhesives: Acts as a non-ionic thickener and water retention aid.
Wood & Related Industries: Used in plywood lamination.
Papers & Packaging: Enhances the performance of adhesives used in these sectors.
Tile Adhesives: Provides effective thickening and rheological control.
Wallpaper Adhesives: Used for its binding and thickening properties.
Latex and Plywood Adhesives: Improves the flow properties and efficiency of the adhesive formulations.

Key Benefits:

Hydration Delay: Treated to delay particle hydration, facilitating easier handling and mixing.
Compatibility: Works well with emulsion polymers, natural and synthetic gums, emulsifiers, and defoamers.
Performance: Offers excellent flow properties and performs well in emulsion and suspension polymerization of vinyl polymers.

Usage Recommendations:

Dosage: The specific concentration to use depends on the formulation and desired properties.
Handling: Ensure proper storage and handling to maintain product efficacy and quality.

Regulatory Status:

Labels/Agency Ratings: Complies with various regulatory standards including TCSI, TSCA, AIIC, DSL, ENCS, KECI, ISHL, PICCS, and IECSC.

For further details, refer to Ashland's technical datasheet or visit their website for additional product information and support

Application

Paints & Coatings

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Product Overview:
- Product Name: Bayhydrol® U 2757
- Type: Aliphatic, hydroxyl-functional polycarbonate ester-polyurethane dispersion
- Form: Cosolvent-free, waterborne dispersion
General Characteristics:
- Binder Type: Suitable as a binder for water-reducible two-component polyurethane coatings
- Primary Use: Especially designed for soft-touch and comfort coatings
- Features:
  - Low viscosity
  - Solvent-free
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Technical Properties:
- Minimum Film Forming Temperature (MFT): < 0°C
- Hydroxyl (OH) Content: Approximately 1.9% (on solids)
- Density at 20°C: Approximately 1.07 g/ml
- Acid Number: Approximately 9 mg KOH/g
Specifications:
- Viscosity at 23°C (D = approx. 40 s⁻¹): 300 - 1,500 mPa·s
- pH Value (Supply Form): 7.0 - 8.0
- Non-Volatile Content (1 g/1 h/125°C): 50 - 54%
Logistics and Handling:
- Storage Conditions:
  - Store in tightly sealed original containers.
  - Protect from freezing, heat, and contamination by foreign materials.
  - Recommended storage temperature: 5ºC to 30ºC
  - The product is sensitive to freezing; freezing will damage it irreversibly.
- Sampling and Packaging:
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Bayhydrol® UH 650

Bayhydrol® UH 650 is a solvent-free, aliphatic polyurethane resin dispersion designed for use in coatings, particularly in two-coat systems for plastics and soft-touch coatings. Here’s a detailed overview:
Product Overview:
- Product Name: Bayhydrol® UH 650
- Type: Aliphatic polyurethane resin dispersion
- Form Supplied: Approximately 50% in water
Specifications:
- Efflux Time at 23°C (4 mm cup): 12 - 30 seconds (AFAM 2008/105 03)
- Non-Volatile Content (1 g/1 h/125°C): 48 - 52% (DIN EN ISO 3251)
- pH: 6 - 8 (DIN ISO 976)
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- Minimum Film Forming Temperature (MFT): < 0°C (DIN ISO 2115)
Properties / Applications:
- Adhesion and Performance:
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  - Offers good overcoatability and water resistance.
  - Can be used for metallic basecoats, which can be oversprayed with a two-component polyurethane clearcoat after pre-drying.
- Drying and Compatibility:
  - Predrying: For instance, 5 minutes at 80°C ambient temperature or 15 minutes at room temperature.
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Storage:
- Recommended Storage Temperature: 5 - 30°C.
- Protect From: Frost, heat, and contamination with foreign material.
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- High Temperature Storage: Prolonged storage at higher temperatures may affect viscosity and particle size.
Storage Time:
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Product Overview:
- Product Name: Pliolite® AC3-h
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- Appearance: White friable granules
- Specific Gravity: 1.03
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- Solubility, Solvent KB: 36
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- Eliminates the need for external thickeners which can often be detrimental to film performance
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Product Overview:
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- Type: Vinyl toluene - acrylate copolymer
Physical Properties:
- Appearance: White friable granules
- Specific Gravity: 1.03
- Tg (Glass Transition Temperature) Midpoint: 61°C
- Refractive Index: 1.558
- Viscosity (sec Ford Cup #4, 25°C, 20% in xylene): 180-230
- Solubility, Solvent KB: 36
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Chemical/Mechanical Properties:
- Mechanical Stability: Excellent
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- Forms films with high hardness and good adhesion
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Natrosol 250 HBR

Main Actions

Description

Key Characteristics:

Properties:

Applications/Recommended Uses:

Key Benefits:

Usage Recommendations:

Regulatory Status:

Categories

Application

Add a review

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Natrosol 250 HBR

Manufacturer

Main Actions

Description

Key Characteristics:

Properties:

Applications/Recommended Uses:

Key Benefits:

Usage Recommendations:

Regulatory Status:

Categories

Application

Add a review

Leave a Reply · Cancel reply

You May Also Be Interested In

Bayhydrol U 2757

Product Overview:

General Characteristics:

Technical Properties:

Specifications:

Logistics and Handling:

Bayhydrol® UH 650

Product Overview:

Specifications:

Properties / Applications:

Storage:

Storage Time:

Pliolite AC3-H

Product Overview:

Physical Properties:

Chemical/Mechanical Properties:

Key Advantages:

Applications:

Pliolite VTAC-H

Product Overview:

Physical Properties:

Chemical/Mechanical Properties:

Key Advantages:

Applications: