Processing aids were first developed by Rohm & Hass in 1958, and the first brand K-120 was launched in the same year. Since then, many foreign companies have started to set foot in this field and developed similar products. After the 1970s, with the rapid growth of PVC products, processing aids have been widely used. At present, the main foreign manufacturers and related products are P series of Mitsubishi (MITSUBSHI ROYAL), PA series of Zhongyuan Chemical (KANEKA), K series of Rohm & Hass of the United States, and BEAR of Germany. F series, ATOFINA (ATOFINA) P series, as well as South Korea's LG Chem's PA series.
The earliest domestic researches on PVC processing aids are Beijing Institute of Chemical Industry, Shanxi Institute of Chemical Industry, etc. The Shanghai Coral Chemical Plant first realized industrial production in the early 1980s, and the brands launched are collectively known as ACR201 and ACR401 in China. In the late 1990s, with the development of my country's polyvinyl chloride industry, especially the rapid development of plastic profiles and plastic pipes, the demand for processing aids has also increased rapidly. At present, Shandong's output ranks first, followed by Jiangsu and Zhejiang. thereafter. According to incomplete statistics, in 2005, the country produced about 50,000 tons of various PVC processing auxiliaries, of which Shandong Province accounted for more than 70% of the country's total auxiliaries production.