United States Rubber Co. v. United States

10 Cust. Ct. 342, 1943 Cust. Ct. LEXIS 758
CourtUnited States Customs Court
DecidedJune 12, 1943
DocketC. D. 779
StatusPublished

This text of 10 Cust. Ct. 342 (United States Rubber Co. v. United States) is published on Counsel Stack Legal Research, covering United States Customs Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States Rubber Co. v. United States, 10 Cust. Ct. 342, 1943 Cust. Ct. LEXIS 758 (cusc 1943).

Opinion

Keefe, Judge:

The merchandise at issue here is an importation of white gutta-percha from the Netherlands East Indies Government Gutta-percha Estate Tjipetir in Java. It was assessed at 20 per centum ad valorem under paragraph 1558 of the Tariff Act of 1930, as a nonenumerated manufactured article. The plaintiff claims that the importation is properly entitled to free entry as gutta-percha, crude, under paragraph 1697.

Doctor H. R. Braak, chief advisor and superintendent of the Netherlands East Indies Government plantations and of the Tjipetir Estate-, testified substantially as follows: Gutta-percha is a vegetable material obtained from the juice of the gutta-percha tree; that formerly in order to obtain the juice the trees were cut down and destroyed; and that on account of the widespread destruction of the trees the Netherland East Indies Government established an estate where gutta-percha was obtained from the- leaves of the trees rather than from the trunk. In processing, the leaves were ground into a pulp and the mass boiled in water. By agitating the boiling mass the fine [343]*343gutta-percha threads meet and stick together and form so-called gutta-percha flakes which are “intensely mixed with the leaf matter,” called dirt. The mass of material is diluted and cooled, the gutta-percha flakes coming to the surface are skimmed off, warmed, and pressed into slab shape. Such process results in the yellow Tjipetir gutta-percha, as represented by exhibit 2 in evidence.

The witness further testified that after the year 1926 the insulating material developed from tbe yellow gutta-percha was found to be inadequate for submarine cables. The company then started experiments to develop a method of extracting gutta-percha from its native condition which would permit a lesser quantity of dirt than contained in exhibit 2 in order to improve the insulating qualities of the product. Subsequent to 1928 the witness had developed the method, as set out below, used in obtaining a gutta-percha free from dirt, as illustrated by exhibit 3, the white gutta-percha imported herein.

The witness described the method of producing the instant merchandise substantially as follows: After the foregoing leafy mass had cooled and the gutta-percha flakes were skimmed off, approximately 2% per centum of the vegetable matter and dirt still remained in the flakes. In order to remove as much as possible of such material from the gutta-percha, the flakes are placed in a cutting machine to reduce them in size and afterwards placed in a tank of hot gasoline where the gutta-percha dissolves. After allowing the mixture to settle, it is rim through a filter composed of a filter cloth upon which has been placed an inert filter aid to reduce the size of the holes in the cloth and assist in the removal of the dirt and coloring matter. The liquid material is thereafter cooled to a temperature of 6° C. At such temperature the gutta-percha precipitates in the form of small flakes. The tank in which the material is contained has a false bottom covered with a gunny cloth and the liquid is allowed to run through, the gutta-percha flakes being caught on the gunny cloth. The drained solution of gasoline contains the resin and the remaining part of the coloring matter or dirt. The .gasoline is eliminated therefrom by means of live steam, leaving a residue of semifluid resin. The gutta-percha flakes are then'subjected to a rolling process to eliminate the water and later placed in moulds under hydraulic pressure and allowed to cool in the form of hard blocks of white gutta-percha as illustrated by exhibit 3.

The witness further testified that in Java the room temperature is 27° C., and gutta-percha remains in solution at 28° C. If gasoline at about that temperature were used as a solvent, and if time enough were allowed, the insoluble dirt remaining in suspension in the liquid after the gutta-percha had dissolved would settle. However, it would take such a long time to settle ¿.hat the gutta-percha in solution would [344]*344deteriorate. When gasoline of that temperature is used the gutta-percha dissolves so slowly that it would take weeks before it would be fully in' solution. Gasoline having a temperature of 6° C. would not penetrate the gutta-percha flakes and therefore the greater portion of the resins and coloring matter would remain undissolved.

The witness testified that the common yellow Tjipetir gutta-percha (exhibit 2) cannot be made into white gutta-percha such as exhibit 3 for the reason that the dirt is introduced into the yellow gutta-percha in such a finely divided state that it cannot be easily filtered and consequently would remain suspended in the cooled solution during the filtering operations and would stick to the precipitated gutta-percha. The witness was of the opinion, however, that yellow gutta-percha could be dissolved and treated by chemical means and filtered through ultra filters to form a white gutta-percha without removing the resin content, but the process would require s.uch intensive methods that the hydrocarbons in the gutta-percha would be damaged.

A consulting and research chemist, who had specialized in rubber insulation and gutta-percha used particularly by dentists, testified for the Government that pure gutta-percha is pure white; that exhibit 2, being yellowish-brown in color, is not pure gutta-percha; and that both exhibits 2 and 3 would be forms of gutta-percha. Later, the witness, in referring to exhibit 3, stated that as it contained 98 per centum of pure precipitated gutta hydrocarbon, it was, in his opinion “a chemical product, a derivative of crude gutta-percha” and not gutta-percha. From his knowledge gained in reading chemical publications, the witness was of the opinion that gutta-percha contains from 7% to 45 per centum of resin. He was not familiar, however, with any gutta-percha with a resin content, as low as 1 per centum. The witness was further of the opinion that the coloring matter could be removed from gutta-percha by an evaporation of the gasoline without refrigeration and that in such process the insoluble elements of dirt would have been removed by filtration and only an insignificant quantity of coloring matter would remain in the residue, which, after evaporation of the gasoline, would consist of gutta-percha and resin.

The head of a balata' refining company engaged in deresinating balata for use in the manufacture of golf balls testified for the Government that it was a very simple matter to remove the dirt and impurities from gutta-percha without removing the resin content by evaporating the filtered solution before cooling. The witness admitted that he had no experience with gutta-percha derived from the leaves of the gutta-percha tree but was of the opinion that it would make no difference. He described the product represented by exhibit 2 as resin and gutta-percha, and ¿hat represented by exhibit 3 as gutta-percha. In his opinion the gutta-percha obtained from [345]*345deresinating crude balata was just the same as the gutta-percha obtained from deresinating crude gutta-percha.

At the close of the Government’s case, a witness for the plaintiff testified that he had been connected with the rubber industry since 1910 and was the chief chemist of the Michelin Tire Co. and had been on the Tjipetir Estate in Java and observed the process used in obtaining the imported merchandise from the gutta-percha leases. From his observation, he was of the opinion that all of the dirt would not dissolve in hot gasoline, but when filtered the greater part of it would be separated.

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Bluebook (online)
10 Cust. Ct. 342, 1943 Cust. Ct. LEXIS 758, Counsel Stack Legal Research, https://law.counselstack.com/opinion/united-states-rubber-co-v-united-states-cusc-1943.