AQ™ 38S is a water dispersible sulfopolyester polymer that is used as a film former and fixative in skin care, primer, coating, and ink applications.
AQ™ 38S is a sulfopolyester polymer that can be easily dispersed in water without the use of emulsifying agents, surfactants, or co-solvents. AQ™ 38S has a Tg of 38°C and forms films that are highly flexible. Unlike other water soluble polymers like PVP and PVOH, AQ™ 38S forms small negatively charged aggregates when dispersed in water that are much smaller than particles in typical emulsions. This allows for dispersion to be made without the need for surfactants or dispersants and rapid film formation.
Form: Pellets
Color: Pale amber
Glass transition temperature (Tg): 35-38°C
dry polymer
Inherent viscosity: 0.32-0.40 dL/g
Melt viscosity @200°C: 9700 poise
Acid number: <2 mg KOH/g
Hydroxyl number: <10 mg KOH/g
Bulk density: 6.5 lb/gal
Primary Chemistry: Sulfopolyester
Easily dispersed in water
Forms flexible films
Adheres well to skin
Aids emulsification of organic ingredients
Quick drying
Adheres well to common packaging films
Water/humidity resistant
Neutralizing amine not needed
Provides soft and smooth feel
Poor water resistance of sunscreen and lotions
Adhesion failure to flexible surfaces
Difficult dispersion of polymers in water
AQ™ 38S, also known as Polyester-5, is an ideal film former for creams, lotions, sunscreens and other skin care applications.
AQ™ 38S is used as a film former for coatings, inks, primers, and overprints.
In ink applications AQ™ 38S is used as a binder that allows for excellent ink adhesion and rapid curing.
Eastman™ has active ingredients, thickeners, plasticizers, film formers, and more for your personal care formulations.
Eastman AQ™ Polymers are used as a water and smudge resistant film former in personal care products including hair styling, sun care, and color cosmetics.
It’s not exactly new for consumers to want their makeup to survive the day. Between weather, work, and workouts, color cosmetics have their work cut out for them. SAIB (sucrose acetate isobutyrate) and AQ™ polymers from Eastman™ promote adhesion and form films to help makeup stay where it belongs.
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