> > > >

1945 Theatre Catalog, 4th Edition, Page 173 (151)

1945 Theatre Catalog, 4th Edition
1945 Theatre Catalog
1945 Theatre Catalog, 4th Edition, Page 173
Page 173

1945 Theatre Catalog, 4th Edition, Page 173

trate the illumination. By means of the louvres, various degrees of illumination are produced, depending upon the angle from Which the fixture is viewed.


The two new plants, built by Kinetic Chemicals, Inc. (in which the DuPont company and the General Motors Corporation have a 51-49 interest), for the manufacture of Freon 12 (the refrigerant, dichlorodiHuoromethane), have accumulated a backlog of production capable of meeting military demands, and, at the same time, restoring cool comfort to theatres and other places. Steady production, together with some easing in the Supply of hydrofluoric acid required in the Freon process, has finally overtaken shortages, so that Freon 12 is available in sufficient quantities for all military and civilian needs.


Efforts to protect fabrics from damage by fire have been made periodically for the past three centuries, but it has only been within recent years that chemicals have been developed that are easy to apply and which do not affect the appearance and feel of the cloth. One of these is ammonium sulfamate, a salt of sulfamic acid. The acid itself had been known since 1876, but it did not become available in quantity until a few years ago, when an economical process was developed by DuPont for manufacturing both the acid and the ammonium sulfamate on a large scale.


A new fire-resistant, plastic-coated upholstery fabric seems destined to find a post-war usage in theatres. The fabric consists of a dame-proofed cotton cloth base with a flexible, fire-resistant surface coating of synthetic resin. The material will char in contact with a dame, but will not support combustion. Known as P.C. Cavalon, it will be available in a range of colors, grains, and finishes when war demands are met.

Fabrikoid pyroxylin-coated fabric repsents a pioneer plastic treatment, and is washable, durable, and colorful. Wearing qualities and scuff-proof properties have already won Fabrikoid wide acceptance among architectural specification writers as the covering for public seating.


Neoprene, the only general-purpose synthetic rubber produced in the United States before the war, may be put to many theatrical uses when it is released from its war assignments. Invented by DuPont chemists, basing part of their work on acethylene researches of the late Father Julius A. Nieuwland, C.S.C., of the University of Notre Dame, neoprene was found to be superior to natural rubber in many ways#resistance to oils, acids, sunlight, flame, and oxygen-aging, to mention its outstanding properties. Therefore, it has been called upon not only to replace natural rubber in certain uses, but to perform numerous tasks for which natural rubber and other synthetic rubbers were not suited.


Just as in the case of crude natural rubber, the crude neoprene must be compounded and cured before it possesses the toughness and resilience characteristic of the finished product. These processes are carried out by good rubber manufacturers, who add compounding ingredients such as carbon black, oils, etc., and vule canize to obtain the desired properties in the finished article.

Foam sponge made from neoprene latex can be used to cushion theatre seats and covering fabrics made of neoprene are ideal for this product. Neoprene foam sponge is especially adaptable for seat fillers because it resists deterioration from heat, aging and dry-cleaning solutions, and is non-name propagating. Cushion fillers are also made from neoprene latex and cattle hair.

Theatre seats will utilize upholstery fabrics coated with neoprene because of its flame retarding properties and resistance to heat, perspiration, dirt, and grease. DuPontls S.R. Cavalon neoprenecoated fabric offers an unusual post-war upholstery covering of unique quality characteristics for heavy duty deep

spring seating in theatres.

Neoprene latex bids fair to replace rubber latex for aisle-carpet backing. Neoprene has a superior aging resistance and freedom from any tendency to become sticky with age and hence adhere to the doors.

A new type terrazzo flooring in which marble chips are stirred .into neoprene latex is an interesting possibility for lobby and washroom flooring. The mixture may be poured on almost any floor surface, and troweled and sanded to form a resilient, durable, and non-slippery surface.

A pre-war item which should find wide application in the post-war theatre is Velvetex. This DuPont product is a sponge rubber rug cushion for theatre aisles and lobbies.


These are examples of chemical products that are likely to take their place on the theatrical stage in the post-war era, Numerous others undoubtedly will follow in uniting the decorative arts with solid utility, goal of the theatre designer.

FILM OF NEOPRENE, as it leaves the drier, is twisted into the form of a rope and cut into short lengths. This product of the E. l. duPont deNemours and Company, lnc., was the only general-purpose synthetic rubber produced in the United States before the war. During the war, many new uses were found for the material, and many of these uses will now be translated into civilian terms for manufacturing in the post-war years.

1945 Theatre Catalog, 4th Edition, Page 173