1In July 1994, a set of ACR production equipment with an annual output of 1000 tons of PVC processing AIDS was built, and the trial production was successfully carried out.
1994 65438+February, the largest 5000-ton/year MBS production plant in China was built, and the impact modifier MBS was put into trial production.
1In August 1998, the foaming regulator LS-530 for PVC was successfully developed and industrialized.
From June 5, 2000 to1October, the PVC impact modifier LS-2 1 was first developed and industrialized in China.
In May of 200 1 year, LA-50 resin, a processing modifier for CPVC, was developed and industrialized.
In August of 20001year, the enterprise was restructured into a joint-stock system and renamed as Yiyuan Ruifeng Polymer Materials Co., Ltd.
In July 2003, the company was spun off from the original Yiyuan Fertilizer Plant and became an independent enterprise with the name Yiyuan Ruifeng Polymer Materials Co., Ltd. ..
In March 2004, the company's 5000-ton styrene-butadiene latex plant was completed and put into operation, and in June 5438+10, the high impact MBS resin was successfully developed to realize industrial production.
In June, 2004, China first developed the processing aid LP-80 for ultra-high molecular weight PVC and industrialized it.
From March 2005 to February 2005, the infrastructure project and equipment installation of 65438+3000 tons/year MBS resin project in 2005 were completed, and it was completed and put into operation before May 1 2006.
In February 2006, the expansion project of 4000 tons/year ACR resin project was started, and it was completed and put into operation in the 11th Five-Year Plan.
June 5438+October 2007 10, the MBS factory with an annual output of 8,000 tons was completed and put into operation, and the total production capacity of MBS reached10.2 million tons.
1 10,000 tons/year impact modifier ACR resin project started construction in May 2007, and it is planned to be completed and put into operation in March 2008.
In May 2008, the project of 1 10,000 tons/year impact modifier ACR resin was started, and it was completed and put into production in June 2008.
In September 2009, the company was renamed Shandong Ruifeng Polymer Materials Co., Ltd.