ORGAL HT 465

CAS Number: Not specified (proprietary formulation)
 Manufacturer: Organik Kimya
 Product Code: ORGAL HT 465
Synonyms:
 Orgal HT 465; HASE thickener; Alkali-swellable emulsion; Acrylic thickener; Rheology modifier
Chemical Identity and Properties:
ORGAL HT 465 is a HASE (Hydrophobically Modified Alkali-Swellable Emulsion) thickener. HASE polymers are acrylic-based copolymers containing hydrophobic groups that provide associative thickening properties. These materials are supplied as low-viscosity emulsions that, when neutralized to alkaline pH, swell and develop high viscosity through a combination of:
Alkali-swellable mechanism: Carboxylic acid groups (-COOH) are neutralized to carboxylate salts (-COO⁻), causing polymer chain expansion
Associative mechanism: Hydrophobic side chains interact with each other and with formulation components, forming temporary networks
Physical Properties (Typical for HASE Thickeners):
Parameter, Value
Appearance, White emulsion
Polymer Structure, HASE (Hydrophobically Modified Alkali-Swellable Emulsion)
pH, 2.1 – 4.1 (acidic; supplied as low-viscosity emulsion)
Total Solids, 30 ± 1%
Brookfield Viscosity, Max. 35 mPas (as supplied; low viscosity for easy handling)
Form, Liquid emulsion
Mechanism of Action:
HASE thickeners are activated by pH adjustment:
Initial state: At pH 2.1–4.1, the polymer is in a collapsed, low-viscosity emulsion form
Neutralization: When base (e.g., ammonia, sodium hydroxide, amines) is added to raise pH above approximately 7–8
Swelling: Carboxylic acid groups are neutralized, causing polymer chains to expand and dissolve
Associative network: Hydrophobic groups associate with each other and with formulation components, creating a three-dimensional network that increases viscosity
Final properties: Provides shear-thinning rheology (pseudoplastic) with excellent sag resistance and flow properties
Applications:
HASE thickeners like ORGAL HT 465 are used in water-based formulations where efficient thickening and rheology control are required:
1. Paints and Coatings:
Architectural paints: Interior and exterior latex paints
Industrial coatings: Water-based industrial finishes
Textured coatings: Provides structure and sag resistance
Primers and sealers: Adjusts viscosity for application properties
2. Adhesives and Sealants:
Water-based adhesives: Viscosity control and rheology modification
Construction adhesives: Provides non-sag properties
3. Personal Care:
Creams and lotions: Thickening and stabilizing emulsions
Shampoos and body washes: Viscosity enhancement and flow control
4. Cleaning Products:
Liquid cleaners: Rheology modification for suspension and application properties
Advantages of HASE Thickeners:
Efficient thickening: High thickening efficiency at low dosage
Shear-thinning: Excellent flow and leveling properties
Sag resistance: Prevents dripping on vertical surfaces
Compatibility: Compatible with a wide range of binders and additives
Post-addable: Can be added at any stage of formulation
pH activation: Allows for low-viscosity pre-mixes and post-neutralization
Formulation Considerations:
pH range for activation: Typically requires pH ≥ 7.5–8.0 for full thickening development
Neutralizing agents: Ammonia, sodium hydroxide, potassium hydroxide, AMP (2-amino-2-methyl-1-propanol), triethanolamine, etc.
Stability: Stable over a wide temperature range once activated
Compatibility: Compatible with most latex binders (acrylic, styrene-acrylic, vinyl acrylic)
Electrolyte sensitivity: Performance may be affected by high electrolyte concentrations

SAFETY INFORMATION ABOUT ORGAL HT 465

First aid measures:
Description of first aid measures:
General advice:
Consult a physician. 
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area:
 
If inhaled:
If breathed in, move person into fresh air. 
If not breathing, give artificial respiration.
Consult a physician.
In case of skin contact:
Take off contaminated clothing and shoes immediately. 
Wash off with soap and plenty of water.
Consult a physician.
 
In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.
 
If swallowed:
Do NOT induce vomiting. 
Never give anything by mouth to an unconscious person. 
Rinse mouth with water. 
Consult a physician.
 
Firefighting measures:
Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas
 
Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures:
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. 
 
Avoid breathing vapours, mist or gas. 
Evacuate personnel to safe areas.
 
Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
 
Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste. 
Keep in suitable, closed containers for disposal.
 
Handling and storage:
Precautions for safe handling:
Avoid inhalation of vapour or mist.
 
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place. 
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
 
Exposure controls/personal protection:
Control parameters:
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
Exposure controls:
Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
 
Personal protective equipment:
Eye/face protection:
Tightly fitting safety goggles. 
Faceshield (8-inch minimum). 
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
 
Skin protection:
Handle with gloves. 
Gloves must be inspected prior to use. 
Use proper glove
removal technique (without touching glove's outer surface) to avoid skin contact with this product. 
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. 
Wash and dry hands.
 
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
It should not be construed as offering an approval for any specific use scenario.
 
Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. 
 
If the respirator is the sole means of protection, use a full-face supplied air respirator. 
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so. 
Do not let product enter drains.
Discharge into the environment must be avoided.
 
Stability and reactivity:
Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:
Strong oxidizing agents:
Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions. 
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.
 
Disposal considerations:
Waste treatment methods:
Product:
Offer surplus and non-recyclable solutions to a licensed disposal company. 
Contact a licensed professional waste disposal service to dispose of this material.
Contaminated packaging:
Dispose of as unused product