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Major breakthroughs in the development of commercial production technology and safety evaluation for medical polyolefin resin

PetroChina Lanzhou Petrochemical Company built up China’s first medical polyolefin resin commercial production base and developed two grades of polyolefin resin (LD26D, RP260) that meet the physical and chemical criteria on medical resin packaging products and the safety requirements on medical polyolefin. The company also formulated the Good Manufacture Practice (GMP) specifications for medical polyolefin raw material, production, packaging, storage, and management system.

Highlights:

  • The development and reaction system for new-type low temperature initiator and modifier to adjust the microstructure and molecular weight distribution (MWD) of the molecular chain of polyethylene.
  • New-type shock absorption and high-pressure separation technology enabled oligomer separation and stable production under ultra-high pressure.
  • The electron donor compound system integrating catalyst activity, hydrogen regulation sensibility and molecular chain steric regularity, better control the microstructure, molecular weight distribution and dissolved matter content of the polypropylene.
  • The development and application of special additive system for medical polyolefin resin.

The medical polyolefin production line of PetroChina Lanzhou Petrochemical Company passed the material supplier qualification of Kelun Pharmaceutical Co., Ltd. The production and sales volume in 2016 reached 3,000 tons.

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