TRY METHOCEL FOR ALL THESE GUM PROPERTIES... thickener-film former-binder-stabilizer -thermal gelling-water retention agent This family of over 50 Methocel® products offers unique combinations of properties where thicken ing and/or a number of other actions are required. Methocel methylcellulose is soluble in both cold water and organic solvents. Available viscosities range from ten to 15,000 centipoises in 2 % solu tions, depending on the Methocel product selected. It's a film former, an emulsifier and a suspending
agent for almost any kind of water-based product. And because Methocel is nonionic, solution viscosity is highly stable. Colorless, tasteless, odorless Metho cel products are available in grades used in phar maceuticals and food products as an acceptable food additive. They exhibit lack of syneresis as well as promoting thermogelling action, prime advan tages for manufacturers of prepared foods.
SOLUBILITY,
You can select the degree or type of solubility you need. Methocel prod ucts are available which possess solubility in water and in organic solvents. Solubility can thus be varied to meet product require ments. VISCOSITY STABILITY
Viscosities of the various Methocel products range from ten to 15,000 cps. Because they are nonionic, the viscosity of solutions is stable over a wider pH range than other gums, i.e., from about pH 3 to 12. Metho cel is very resistant to the growth of microorganisms. Normally it does not require the addition of preser vatives. THERMAL GELATION
Solutions containing certain types of Methocel gel on heating or cool ing in contrast to other gums which gel only on cooling. This unique 90
C&ΕΝ
Methocel offers α full range of viscosities.
phenomenon is reversible. This is particularly valuable for adhesives which must set up on heating.
are available which do not exhibit this property. STRONG FILM FORMER
Where thermal gelling is a dis advantage, other types of Methocel
Methocel can form tough, flexible, clear, water-soluble films which are
BINDING AGENT
Methocel products are excellent binders for all kinds of pigments, glass fibers, fillers, colors, toxicants. Being nonionic, Methocel products have a wide range of compatibility with other formulating ingredients.
Solutions of Methocel gel on heating.
Tough, water-soluble films can be made with Methocel.
resistant to grease and oil, and can be heat sealed. In addition, they provide good ink, varnish and wax holdout for certain applications. Low viscosity types of Methocel are used to obtain maximum solids. Because specific gravities of the films are low, they usually give superior binding properties or greater area coverage per pound than other gums.
mal gelation properties can be an important factor.
STABILIZER
All Methocel products are effective stabilizers and protective colloids. Choice of the type to be used depends on the application because protective colloid effects can be very specific both as to type and viscosity. Operating temperatures must also be considered, since ther
WATER RETENTION
This property of Methocel is par ticularly valuable to the food manufacturer. When used as a binder, Methocel exhibits lack of syneresis. Foods do not weep water. In certain types of foods Methocel retards drying out of products, keeping them moist and saleable over long periods of time.
Methocel forms stable suspensions.
WIDE PRODUCT RANGE
SURFACE A C T I V I T Y
The many varying combinations of properties offered by Methocel products are highly advantageous for agricultural compounds, chemi cal specialties, cosmetics, pharma ceuticals, paints, foods, paper prod ucts, textiles and others.
Unlike other gums, solutions of M e t h o c e l are surface a c t i v e , reducing the surface tension of water solutions. Methocel is used as a very effective emulsifying and suspending agent.
Send for free samples and infor mation on Methocel products. Be sure to include a brief description of your requirements or product on the coupon.
THE DOW C H E M I C A L
COMPANY
DOW
Midland, Michigan
THE DOW CHEMICAL COMPANY Abbott Road Building · Midland, Michigan · Attn: Chemicals Merchandising Dept. 690AJ11-27 Please send me Methocel Handbook and a sample of Methocel, of the type most suitable for the specific product or application described below.
Viscosity range desiredName
Solubility •
water •
organic
Title
Company Company Address. City
Zone-
State.
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91
