Synthetic resins and their raw materials: A survey of the types and uses of synthetic resins, the organization of the industry, and the trade in resins and raw materials, with particular references to factors essential to tariff consideration. Under the general provisions of section 332, title III, part II, Tariff act of 1930.United States Tariff Commission
Science
Synthetic resins and their raw materials: A survey of the types and uses of synthetic resins, the organization of the industry, and the trade in resins and raw materials, with particular references to factors essential to tariff consideration. Under the general provisions of section 332, title III, part II, Tariff act of 1930.
United States Tariff Commission
Gums and resins industry; Plastics
-------------------------------------------+---------------------
Type | 1934 | 1935
-------------------------------------------+----------+----------
| _Pounds_ | _Pounds_
Solid, liquid, cured, uncured, and hardened|25,558,400|13,283,200
Molding powder, 50 percent or more resin | |25,872,000
Laminated sheets, rods, blocks, tubes | 1,164,800| 1,646,400
+----------+----------
Total |26,723,200|40,801,600
-------------------------------------------+----------+----------
Source: Great Britain. Board of Trade, Census of Production.
Capital invested in the British industry is reported as 15,000,000 pounds
sterling and direct employment as 20,000 people.
_Tar-acid resins._—Many large moldings are made in England, such as large
radio cases, desk files, trays, and drain boards. Cast phenolic resin
production has just been started in England.
Among the novelties recently produced in England is a toy railway molded
of tar-acid resin. The trains and track spacers are of nonconducting
resin; the molded rails are made conductive by a thin covering of metal
which is pressed in and secured at the ends. Two trains may be run on the
same set of rails at different speeds, or one can go forward and another
backward, since the two outer rails are separate conductors, the third
rail acting as a common return.
Molded piano parts are being tried in an attempt to solve the troubles
hitherto encountered with wood, owing to variations in humidity. Resins
have long been used in facing the keys, but the production of piano
action parts has presented many technical difficulties. The secret of
success with molded resin parts lies in molding the joints in position
when the main body is molded. There are 88 sections in each piano.
_Urea resins._—British Cyanides, Ltd., well-known makers of synthetic
resins in England, acquired the Pollopas patents for the manufacture
of urea resins in the United Kingdom, in certain continental European
countries, and in the British Empire except Canada. The agreement called
for a full exchange of patents and other information with the other
licensees of the Pollopas patents. These arrangements were made for
the purpose of consolidating the patent position and for the pooling
of technical data already existing on manufacture, with the object of
improving quality.
_Acrylate resins._—An outstanding development in Great Britain has been
the production of the thermoplastic resins known as Diakon and Perspex.
These are made from methyl methacrylate and are developments of the
Imperial Chemical Industries, Ltd. Diakon is for molding powders and
Perspex is in the form of cast sheets, rods, tubes, and optical forms.
Public-domain text, read in full here on John Shaqi.
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