Styrene-butadiene rubber (SBR); carboxylated styrene-butadiene rubber (XSBR): — Latex
d82680 · 1998-09-23 — The classification of styrene-butadiene latex from France. Dear Mr. Price: In your letter dated September 15, 1998 you requested atariff classification ruling. The product, designated Rhodapas B187 D600, is described asstyrene-butadiene latex. The percentage by weight breakdown isgiven as styrene-1,3-butadiene copolymer (50 percent); poly-propylene glycol (less than 5 percent); and water (less than 50percent). The percent by weight of each monomer making up thepolymer is
The product, designated Rhodapas B187 D600, is described as styrene-butadiene latex. The percentage by weight breakdown is given as styrene-1,3-butadiene copolymer (50 percent); poly-propylene glycol (less than 5 percent); and water (less than 50 percent). The percent by weight of each monomer making up the polymer is styrene (60 percent) and butadiene (40 percent). The material is used as a gas migration blocking agent in the cementation of oil and gas wells. The classification of merchandise under the Harmonized Tariff Schedule of the United States (HTSUS), is governed by the General Rules…
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