NEW EQUIPMENT A N D MATERIALS CHEMICALS A N D
H O W TO SPEED-UP SLUGGISH
MATERIALS
Silicon Dioxide Microspheres
SLURRIES
New resin-compatible filler fea tures of 4 lb./cu. foot, melting point 2300° F., and 300- to 600-micron particle size. Material is said to be suitable for use in insulation, mold reinforcement, building panels, and other applications. Dept. IEC, Hastings Plastics, Inc., 1551 12th St., Santa Monica, Calif. 17
High-Capacity Flow Indicator New low-cost, high-capacity flowmeter features integral bypass and is priced from $35 to $75 for capacities ranging from 1 to 50 g.p.m. of water or 4 to 200 s.c.f.m. of air. Dept. IEC, Brooks Rotam eter Co., P.O. Box 432, Lansdale, Pa. 18
. . . .
New Dyestuff Intermediates
SEDIMENTATION
Two new dyestuff intermediates, p-phenylenediamine and m-toluidine, are now available. Dept. IEC, Aceto Chemical Co., Inc., 40-40 Laurence St., Flushing 54, Ν. Υ. 19
Potassium Titanate Shapes Complex integral shapes are now available in Resistotherm, a special compact of fibrous potassium titanate. Material is low density, wide application insulating material with very low thermal conductivities at temperatures to 2200° F. Dept. IEC, Resisto Chemical, Inc., P.O. Box 1945, Wilmington 99, Del. 20
OR
SLOW DOWN
If high viscosity is slowing your processing of an aqueous slurry, try adding a Marasperse® dispersant. Or if your customers complain of sedimentation when they mix your product with water, put a Marasperse in your formulation. Only a little Marasperse is needed to reduce slurry viscosities, or to prevent micron-sized particles from settling out of sus pensions. Usually less than 3%, based on the weight of the solids in the aqueous system, will d o the job for you. For example, manufacturers of gypsum board require just 0.15% Marasperse in their stucco slurries to give them more fluidity at lower water contents . . . And producers of pesticide wettable powders include but 1.5% to 2.0% Marasperse in their powders to ensure satisfactory dispersion in spray tanks. What's more, the Marasperses cost only a few cents a pound! Tell us about your viscosity or suspensibility problem. If it's typical of one of the many that the Marasperse dispersants have licked, we'll give you specific information based on user ex perience. If it's something new or unique, we'll tell you how to test samples of the Marasperses to determine whether or not they'll be useful to you.
MARATHON
A Division of American Can Company CHEMICAL SALES DEPARTMENT MENASHA. W I S C O N S I N
Uniform rectangular p i p e shapes in high-temperature insulating material a r e uncemented and f r e e of seams
Lore information is as near as your mailbox!
Just circle the number of the
item in which you a r e interested on the Readers' Information C a r d , following this section
· · · · · · · · · · · · · · · ·
MARATHON · A Division of American Can Co. CHEMICAL SALES DEPT. · MENASHA, WIS. Please send Information File No. 1-40 • , Samples • NAME TITLE COMPANY. ADDRESS
of MARASPERSE for use in
_
Please attach
._
to your
company
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Circle No. 41 on Readers' Service Card VOL. 52, NO. 4
·
APRIL 1960
91 A
