POLYSTY acquires Expandable Polystyrene (EPS) technology from Industrial Projects Group (IPG, with PST Worldwide - PSTW). IPG experience includes over 10 years of licensing successful EPS plants in China, Brazil, Ukraine and Croatia.
POLYSTY is now able to offer technology for the entire range of polystyrene manufacturing!
Please see the EPS page for features of this high quality, high productivity process technology.
POLYSTY supports Petrochina first maintenance shutdown at Dushanzi plant in Xianjiang, China, two years after startup. The C-Star Plus GPPS line ran for 656 continuous days after initial startup, prior to the 2011 total site shutdown. POLYSTY also supported the restart, and over a 10 day period POLYSTY HIPS technology averaged 80 ppm residual monomer, with 20 ppm standard deviation. Other properties of the 3.0 MI low-rubber HIPS product were 11-12 Charpy impact strength while using no initiator. POLYSTY supports all its customers for years after contractual obligations are complete.
POLYSTY assists long-term client Deltech Polymer Corporation to restart a GPPS process line that had been shut down for seven years. Services included determining process conditions to use with new feedstock, training new personnel, hazard and risk evaluation, 24-hour startup coverage, and post-startup assistance. As usual, the client is fully satisfied with our services and is requesting consultation for a new product development.
The US Patent and Trademark Office approves the POLYSTY DV-Plus patent. The DV-Plus patent 7,682,484 B2 is for the innovative design for up to three stages of devolatilization in a single pressure vessel, to remove residual volatiles from any viscous compound. DV-Plus can achieve 150 ppm volatiles in Polystyrene without resorting to expensive mechanically-aided or water aided processes. Prior to the recent DV-Plus successful commercial demonstrations, PS producers seeking low residuals had to install equipment to treat water, inject it into high pressure polymer lines, and condensation equipment that costs millions of dollars more to install than the innovative DV-Plus system. DV-Plus also saves millions of operating and maintenance dollars over a 10 year period, versus water-aided systems.
POLYSTY starts up its 4th commercial DV-Plus unit and its 1st commercial swing line! This is the client’s second DV-Plus unit, (The first was installed in 2005 on the client’s existing GPPS line.)
POLYSTY supplied the GPPS-HIPS swing line technology, and DV-Plus technology, and critical equipment to retrofit the client’s existing HIPS line. POLYSTY provided a complete service package for the improved technology:
- Basic Engineering Package
- Operating Manual
- Laboratory Manual
- Product Manual
- Detailed engineering support
- Construction support on site
- Startup coverage
- Technology for improved HIPS properties that allowed rubber reduction in the product
- Technology for a new Stress-Crack Resistant (SCR) HIPS grade
- Supported market introduction of the new SCR grade which included consulting to optimize extrusion of the new SCR grade, and visiting our client’s customer.
September - November 2009
POLYSTY starts up Petrochina’s new 40,000 tonne HIPS and 90,000 tonne GPPS units at Dushanzi, Xianjiang province in China. The GPPS unit uses POLYSTY C-Star Plus production technology. The HIPS line uses POLYSTY process technology to produce HIPS in plug flow reactors. Both lines use POLYSTY DV-Plus devolatization technology. POLYSTY supplied full support for its client:
- Process technology and design for both plants
- Trained the operating staff both in the US host plant and at the Dushanzi site
- Detailed engineering assistance
- Full operating guidelines
- Laboratory and product manuals
- Commissioning assistance
- 24/7 startup support.
- Post-startup support for client’s questions on production, products, and testing
integrated GPPS and HIPS units