We know PMDA will be an inexpensive

chemical

PMDA Pyromellitic Dianhydride

WHY? Princeton Chemical Research, Inc. has developed a new continuous, one step process based on air oxidation which results in a product of outstanding purity without a trace of nitro groups. Operation of our new plant indicates that as annual production levels rise, costs will go down steeply. Our predicted schedule of prices at various produc­tion levels follows.

PRICE Price Per Pound $4.75-2.75 2.50-1.50 1.00 or less

.50 less than . 50

Annual Production Level in Pounds

Up to -500,000 500,000-5,000,000 5,000,000-10,000,000 10,000,000-20,000,000 20,000,000 and over

Princeton Chemical Research, Inc. is interested in contrac­tual commitments to supply PMDA subject to the production price schedule listed.

PRESENT AVAILABILITY We can supply from our present facilities 500,000 pounds per year.

USES Curing agent for epoxy resins, adhesives, molding powders, fluidized-bed coating, polyimides, polyesters, alkyd resins, other high temperature polymers, plasticizers, lubri­cants and functional fluids.

CONTACT For prompt response to your needs and contrac­tual commitments, please contact Thomas Zawadski, Vice President of Sales.

P R I N C E T O N C H E M I C A L RESEARCH, INC.

PO Box 652 Princeton, New Jersey 08540 Telephone: (609) 924-3035

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