THE HISTORY OF Kopi Luwak

The origin of kopi luwak is closely connected with the history of coffee production in Indonesia. In the early 18th century the Dutch established the cash-crop coffee plantations in their colony in the Dutch East Indies islands of Java and Sumatra, including Arabica coffee introduced from Yemen.

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SOMETHING ABOUT PPO

Poly(p-phenylene oxide)

ppop2Poly(p-phenylene oxide) (PPO) or poly(p-phenylene ether) (PPE) is a high-temperature thermoplastic. It is rarely used in its pure form due to difficulties in processing. It is mainly used as blend with polystyrene, high impact styrene-butadiene copolymer or polyamide.

History

Polyphenylene ether was discovered in 1956 by Allan Hay, and was commercialized by General Electric in 1960. The common name “polyphenylene oxide (PPO)” is incorrect because it is not an oxide but an ether. Continue reading “SOMETHING ABOUT PPO”