First, the current situation

sis (styrene - isoprene - styrene thermoplastic block copolymer) is sbs (styrene - butadiene - styrene thermoplastic block copolymer) sister product, the same as sbc (styrenic thermoplastic elastomer ) series of the main products. As a new generation of the thermoplastic elastomer, sis has excellent holding power and corrugated sealing, extensive preparation of the hot melt pressure sensitive adhesive and use, especially the hot-melt pressure sensitive adhesive which has a solvent-free, pollution-free, energy consumption , simple equipment, bonding a wide range of features, popular in recent years has developed rapidly.

sis production technology and sbs basically the same, so the device simultaneously on many of the world have the ability to produce sbs sis of. But the production process, the production sis difficult than sbs, sbs not all devices can simultaneously produce sis, product categories significantly less than sbs.

Second, the production status

Sis domestic development started late because c5 fractions isolated immature technology, lack of polymer-grade isoprene monomer. 1990 Beijing Yanshan Petrochemical Corporation R & D Centre in line with Sinopec Group Company c5 fraction separation technology research and development work, as polymerized isoprene monomer level indicators to determine the quality of science and technology, development work started this sis, mold test developed by early 1994 Petrochemical Technology Center of identification, early in 1996 100 tonnes / year pilot study science and technology through the identification of Sinopec, Yanhua sis quality comparable to foreign products, but Yanhua commercial interruptions test. Shanghai Jinshan Petrochemical Company in 1994 to 25,000 tonnes / year c5 separation device to drive the success and identified through the national science and technology, stable sources of isoprene, lay a good foundation for domestic sis industrialization.

1994 began the development of Baling Petrochemical production sis, 1996 completed trial production industry, the annual output of hundreds of tonnes, after years of development, Baling Petrochemical sis in improving quality and new product research and development continue to make new progress, and gradually improve the quality of the current can completely replace imported products.

Third, demand conditions

Sis 2003 domestic demand will reach 15,000 tonnes. sis is the earliest and most common for people to accept the adhesive material. Sis important for HMPSA domestic industry (hmpsa). Domestic hmpsa fast development, the vast majority of the material used in disposable hygiene.

Then in 1990 after the country rapidly developing agent, provider of the world's important sis Japan and the United States, Japan again new products, such as Japan and the US dexco zeon company has nearly 10 kinds sis brands appear in the domestic market; China as Taiwan Synthetic Rubber Corporation, Lee Chang Yung Chemical Company and Chi Mei Corporation in the domestic market also has sales. Sis domestic market, in addition to Yueyang production, produced in Taiwan sis more than the other foreign products as well as the United States shell, dexco jsr and zeon and Japan and so on.

Use sis important domestic market is still concentrated in the southeast coastal provinces (including Guangdong, Fujian, Jiangsu, Shanghai and Zhejiang), following Shenzhen Huamei Fine Chemical Co., Ltd.: The company's two factories are producing sis pressure sensitive tape and biaxially oriented film, sis in demand of about 600-1,000 tonnes, imported from Japan, brand kratond-1107 and quintac-4321.

Guangdong Fuller Adhesives Ltd: for US-owned firms in the country, may be the largest hmpsa plant, an important product to sis, sbs and sebs three kinds of plastic material as the substrate, the production of hmpsa customers throughout the country, yields called at least five times the company's gorgeous, sis all imports. Shanghai to Chinese hot-melt adhesives plant: sbs or sis for the substrate to produce feminine hygiene with hmpsa, sis annual demand of about 60-100 tonnes. Yangzhong River Island plants: Similar to Shanghai, China plant.

There are 11 other paper mill Beijing, Tianjin Hongqi paper mills, paper factory in Zhuhai, composite packaging plant in Changzhou, Shanghai Pen Parts Factory, Jiangyin pressure sensitive Factory, Shandong chemical plant, Hangzhou West Lake rubber plants, Xianning Suo Lida Adhesive Tape Factory and Fujian several plants, these companies need to import about 3,000 tonnes annually sis.

Fourth, the development prospects

Sis domestic market has great potential to the world styrenic block copolymer sis occupy 20% of the production ratio calculation, sbs existing domestic production capacity of about 100,000 tonnes / year, the sis capacity should be accounted for 2 million tonnes / year , and now less than 500 tonnes / year, a far cry, therefore, look to the domestic sis space for development and use of space is a promising prospect.