Quick Search
CAS no: Proprietary blend
EC / List no: Not applicable
Chemical formula: Not applicable
Synonyms: RHEOSOLVE T-663, RHEOSOLVE T 663, Rheosolve T-663, Rheosolve T 663, Rheosolve T663, T-663 Rheosolve, T 663 Rheosolve, Rheosolve T-663 Thickener, Rheosolve Thickener T-663, Associative Thickener T-663, Acrylic Thickener T-663, Acrylic Associative Thickener T-663, Associative Acrylic Thickener T-663, Acrylic Rheology Modifier T-663, Polymeric Rheology Modifier T-663, Polymeric Thickener T-663, Synthetic Polymeric Thickener T-663, Hydrophobically Modified Alkali Swellable Emulsion Thickener T-663, Hydrophobically Modified Alkali-Swellable Thickener T-663, Hydrophobically Modified Acrylic Thickener T-663, Hydrophobically Modified Acrylic Rheology Modifier T-663, HASE Thickener T-663, ASE Thickener T-663, Alkali Swellable Thickener T-663, Alkali-Swellable Acrylic Thickener T-663, Waterborne Acrylic Thickener T-663, Acrylic Emulsion Thickener T-663, Acrylic Dispersion Thickener T-663, Acrylic Polymer Thickener T-663, Water-Based Thickener T-663, Waterborne Thickener T-663, Liquid Thickener T-663, Aqueous Thickener T-663, High Performance Thickener T-663, Industrial Thickener T-663, Technical Grade Thickener T-663, Functional Polymer Thickener T-663, Performance Thickener T-663, Multi-Purpose Thickener T-663, Rheology Modifier T-663, Rheology Control Agent T-663, Rheology Additive T-663, Rheology Agent T-663, Rheology Improver T-663, Flow Modifier T-663, Flow Control Agent T-663, Flow Enhancer T-663, Viscosity Modifier T-663, Viscosity Builder T-663, Viscosity Enhancer T-663, Viscosity Control Polymer T-663, Thickening Agent T-663, Stabilizing Polymer T-663, Formulation Aid T-663, Surfactant Compatible Thickener T-663, Surfactant-Compatible Thickener T-663, Salt Tolerant Thickener T-663, Electrolyte Tolerant Thickener T-663, Shear Thinning Thickener T-663, Shear-Thinning Thickener T-663, Detergent Thickener T-663, Liquid Detergent Thickener T-663, Household Cleaner Thickener T-663, Cleaner Thickener T-663, Soap Thickener T-663, Personal Care Thickener T-663, Cosmetic Thickener T-663, Paint Thickener T-663, Coating Thickener T-663, Industrial Formulation Thickener T-663
Rheosolve T 663 is an innovative, high-performance liquid acrylic thickener designed to provide superior rheological control for water-based formulations. Developed as a synthetic, pH-activated associative polymer, Rheosolve T 663 features a unique comb-like structure consisting of a water-soluble backbone rich in carboxylic acid groups, functionalized with randomly distributed hydrophobic end-chains. Supplied as an acidic emulsion with low viscosity, low foaming tendency, and shear stability, the product minimizes the risk of chemical shock during the mixing of ingredients.
To activate its exceptional thickening performance, Rheosolve T 663 requires neutralization using an alkaline solution or an amine to raise the formulation pH above 7.0. Upon neutralization, the carboxylic acid groups repel each other, causing the polymer backbone to swell and become fully water-soluble, while the hydrophobic segments self-assemble into complex network structures.
Key Properties of Rheosolve T 663
Appearance: Milky white, aqueous liquid dispersion
Odor: Mild / Characteristic
Chemical Structure: Synthetic acrylic copolymer in aqueous dispersion (Alkali Swellable Emulsion / ASE)
Active Content (Solid Content): ~29–31%
pH Value: ~2.5–3.5 (as delivered)
Viscosity: ~10–50 mPa.s (as delivered at 25 °C)
Density: ~1.05 g/cm³ (at 20 °C)
Solubility: Misible with water in all proportions; forms a clear to translucent viscous gel upon neutralization
Rheological Behavior: Shear-thinning (pseudoplastic) flow behavior with high thixotropic recovery
pH Activation Range: Effective thickening typically starting at pH ≥ 6.0 (optimal efficiency at pH 7.0–10.0)
Compatibility: Highly compatible with anionic and non-ionic surfactants, electrolytes, and polar solvent systems
Stability: Chemically stable under recommended storage conditions; stable against thermal degradation within standard operational ranges (5 °C–40 °C)
Reactivity: Chemically inert under normal handling; non-reactive with standard detergent components
Structure and Chemical Behavior
The specialized performance profile of Rheosolve T 663 stems from its complex chemical architecture and sophisticated multi-action thickening dynamics:
pH-Triggered Water Gelling: Inside the container, the acidic emulsion remains coiled and low in viscosity. When a base is introduced, the neutralization of the carboxylic acid groups creates immediate electrostatic repulsion, expanding the polymer chains into an entangled, high-viscosity three-dimensional gel network.
Associative Self-Assembly: Unlike traditional non-associative thickeners that only bind water, Rheosolve T 663 utilizes its hydrophobic "tails" to physically link with latex binders, pigment particles, surfactants, and neighboring polymer molecules, establishing high physical network barriers.
Optimized Shear Dynamics: The transient physical bonds within the associative network are highly responsive to mechanical energy. They yield under application force to ensure smooth flow, and instantly rebuild when the shear stress is removed.
Key Advantages of Rheosolve T 663
Integrating Rheosolve T 663 into automated manufacturing and demanding formulations delivers critical performance upgrades:
Advanced Rheology & Thixotropy Control: Delivers powerful low-shear viscosity to prevent sagging on vertical surfaces while maintaining controlled high-shear viscosity for effortless application, pumping, and dispensing.
Exceptional In-Can Stability: Drastically reduces raw material costs by increasing thickening efficiency at lower dosages, while successfully eliminating phase separation, sedimentation, and syneresis during extended shelf storage.
Reduced Spattering & Enhanced Flow: The high cohesive strength of the associative network keeps fluid systems together during fast application speeds, minimizing mess, eliminating roller spattering, and improving final leveling.
Improved Film Build & Water Resistance: Enhances the physical body and dry film thickness per application without causing excessive moisture pick-up, ultimately lowering the water sensitivity of the cured matrix.
Industrial Applications
Due to its multifunctional particle dynamics and low production cost, Rheosolve T 663 is deployed across a vast array of global waterborne industrial, commercial, and high-tech sectors:
Decorative and Architectural Coatings
Rheosolve T 663 is widely used in water-borne interior and exterior architectural paints to align with modern sustainability, durability, and low-VOC requirements:
Flow and Leveling Optimization: Functions as an efficient anti-sagging agent, preventing dripping and running on vertical substrates while promoting a smooth, uniform brush or roller finish.
Application Enhancement: Provides excellent brush resistance and anti-spattering behavior during fast roller application, preserving the aesthetic quality and hiding power of the paint.
Industrial Coatings
It provides specialized structural enhancement in challenging industrial application environments:
Substrate Protection: Applied in waterborne coating systems for metal, wood, and plastic surfaces, enhancing film durability and operational excellence from primer to topcoat.
Harsh Environment Durability: Minimizes penetration into porous substrates and helps protective, marine, automotive, coil, and industrial equipment coatings withstand extreme operational conditions.
Adhesives and Sealants
Resin Thickening: Imparts strong thixotropic effects and structural body across advanced water-based assembly adhesives, pressure-sensitive systems, and structural sealants.
Manufacturing Efficiency: Optimizes converting speeds in tape, label, and laminate production processes by lowering the time and energy costs required for industrial mixing and pumping.
Paper and Paperboard Coatings
High-Speed Runnability: Deployed successfully in high-shear, light-weight paper coating formulations to ensure uniform flowability.
Defect Prevention: Prevents coating defects and foaming under extreme blade or roll coating speeds, maximizing production throughput.
Cosmetics and Personal Care
Texture & Suspending Power: Enhances sensory texture and spreadability in styling gels, makeup, and skincare products, providing advanced clear film-forming fixative properties.
Stabilization: Stably suspends particulate materials, active nutrients, and insoluble droplets over long periods within high-surfactant cosmetic matrices without altering transparency.
Home Care and Detergents
Viscosity Modification: Acts as an essential structuring additive in liquid cleaning products, controlling pouring behavior and optimizing product handling for consumers.
Homogeneity Preservation: Keeps cleaning formulations physically homogeneous over time, improving the visual appeal and stability of specialized liquid detergents.
Manufacturing Process
Rheosolve T 663 is manufactured via a highly precise, multi-stage continuous emulsion polymerization process. High-purity water-soluble segments, including specialized acid monomers, are copolymerized alongside structural segments within an aqueous medium containing optimized surfactant packages.
During the polymerization phase, specialized poly(ethylene oxide) spacer segments of tightly controlled lengths are chemically bound to hydrophobic terminal functional groups and integrated into the polymer matrix using advanced amphiphilic macromonomers. This creates a highly reproducible, cross-linked star or comb-like block structure. The final liquid emulsion undergoes rigorous quality control to ensure uniform solids content, low-foam delivery, excellent batch-to-batch consistency, and total compliance with modern environmental regulations.
Rheosolve T 663 stands as an indispensable, high-performance associative rheology modifier that solves critical processing and stability challenges across multiple waterborne global industries. By perfectly balancing alkali-swellable volume expansion with high-strength hydrophobic associations, it delivers unmatched viscosity control, sag resistance, and anti-settling durability. Whether optimizing architectural coatings, maximizing the speed of industrial adhesive converting lines, or stabilizing complex surfactant formulations, Rheosolve T 663 remains a vital driving component for modern manufacturing efficiency and long-term product durability.
