Rheological Modifiers
Thorcovisc is a series multifunctional of rheological modifiers.
Thorcovisc 45 is a cross-linked, highly branched gelling agent which can work as either the primary or co-emulsifier. It has good rubout while it also imparts a soft non-tacky after feel. It will suspend inorganic sunscreens as well as promote formula stability.
Thorcovisc Emul 33 and Thorcovisc Emul 34 & 34 U are liquid cold process products that thicken upon neutralization. They are compatible with peroxide and other oxidizing agents, electrolytes, polar solvents, and zinc pyrithione. Thorcovisc Emul 33 yields a milky gel while Thorcovisc Emul 34 & 34 U yields a translucent gel.
Thornley Company’s Thorcopol Series includes synthetic cross-linked water soluble polymers of acrylic acid, which conform to USP/NF specifications as "Carbomer”. These white free-flowing powders are soluble in water, alcohol and glycols. The pH of the Thorcopols before neutralization is between 2.5 to 3.0. Thorcopols are efficient for thickening, suspending insoluble ingredients, and stabilizing emulsions.
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RHEOLOGICAL MODIFIERS |
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Product |
INCI |
Type |
% Use |
Category |
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Thorcovisc 55 |
Acrylamide / Sodium Acrylate Copolymer& C-14-14 Isoparaffin & Laureth-7 |
Anionic Thickener/Pre-neutralized/Gelling Agent/Suspending Agent/Emulsifier/Stabilizer for O/W Emulsions |
0.2-2.0 |
Skin Care Sun Care |
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Thorcovisc 45 |
Polyacrylamide (and) Isoparafin (and) Laureth-7 |
Anionic Thickener/Pre-neutralized/Gelling Agent/Suspending Agent/Emulsifier/Stabilizer for O/W Emulsions |
1-5 |
Skin Care Sun Care |
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Thorcovisc Emul 33 |
Acrylates Copolymer |
Rheological Modifier/Alkali-swellabe anionic polymer emulsion/High Shear Stability/Compatible with Extreme Chemistries |
3-10 |
Skin Care Hair Care |
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Thorcovisc Emul 34 |
Acrylates Copolymer |
Rheological Modifier/Alkali-swellabe anionic polymer emulsion/High Shear Stability/Compatible with Extreme Chemistries |
3-10 |
Skin Care Hair Care |
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Thorcovisc Emul 34 U |
Acrylates Copolymer |
Rheological Modifier/Alkali-swellable anionic polymer emulsion/High Shear Stability/Compatible with Extreme Chemistries |
5-10 |
Skin Care Hair Care |
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POLYMERS |
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Product |
Type |
Properties |
Uses |
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Thorcopol 934/974 |
Cross-linked polyacrylic acid-”Carbomer” |
Excellent stability at high viscosity Produces thick formulations Short flow properties Medium viscosity High suspending ability Opaque gel |
Thick formulations Hair care, Skin care Pharmaceutical topical ointments |
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Thorcopol 940/980 |
Cross-linked polyacrylic acid-”Carbomer” |
Rheology modifier Short flow properties High viscosity High suspending ability High clarity |
High viscous liquids or gels for cosmetics Clear gels, hydroalcoholic gels, and creams |
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Thorcopol 941/971 |
Cross-linked polyacrylic acid-”Carbomer” |
Permanent emulsions and suspensions at low viscosity Gels produced have excellent clarity |
Cosmetic industries-emulsion stabilization. Solid dosage form as a binder and in sustain release formulations Clear gels, hydroalcoholic gels, and lotions Oral care formulations of pharmaceutical industries |
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Thorcopol 956 |
Cross-linked polyacrylic acid-”Carbomer” |
Efficient co-binder at low usage levels, suspending agent for non soluble actives or excipients, improves long term stability of peroxide gel systems, compatible with commonly used formulation ingredients. |
Clear hydroalcoholic sanitizing gel; topical lotions, creams and gels, Oral care products including toothpastes and gels, desensitizing and whitening products as well as denture adhesives. |
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Thorcopol ELT-20 |
Cross-linked polyacrylic acid-”Acrylates/C10-30 Alkyl Acrylate Crosspolymer” |
Rapid Wetting Short flow property Effective across a broad pH range Excellent Clarity Improved Electrolyte Tolerance High Thickening Efficiency |
Variety of personal care applications |
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Thorcopol ETD2020 |
Cross-linked polyacrylic acid-”Acrylates/C10-30 Alkyl Acrylate Crosspolymer” |
Rapid Wetting Long viscous flow property Efficient Thickening Sparkling Clarity Easy to disperse Suspending capability |
Thickening surfactant systems |
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Thorcopol Carbomers yield: |
The recommended neutralizers for Thorcopolrange are: |
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·High viscosities at low concentrations. |
·Sodium Hydroxide |
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·Uniform performance (natural gums can not give the same). |
·Triethanolamine |
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·Proven safety through years of successful use in Personal Care applications. |
·Ammonium Solution |
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·Temperature stability over time– there is no significant effect of temperature on viscosity performance. |
·Di-(2-ethylhexyl) amine |
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·Stability during aging. |
·Potassium Hydroxide |
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·Excellent shelf life. |
·Triethylamine |
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·Microbial resistance– resists bacterial attack and does not support mold growth. |
·Di-iso-propanolamine |
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·Versatility-although primarily used in aqueous systems with neutralization. It can also be used in solvent systems, with or without neutralization. |
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·Smooth and luxurious feeling. |
