Long Hua

SHANDONG LONGHUA NEW MATERIAL CO., LTD. was established in March 2011 and is located at No. 289, Weigao Road, Gaoqing Economic Development Zone, Zibo City, Shandong Province, with a superior geographical location and convenient transportation…

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  • Polyurethane moulding components

    The polyurethane foam must have rigidity or flexibility depending on what its applications are going to be. The versatility of this material allows it to adjust to the needs of industries in all sectors and be present in everyday life to provide comfort and protection. 1, Rigid and flexible pol...

  • Polyols

    Substances bearing plurality of hydroxyl groups are termed as spolyols. They may also contain ester, ether, amide, acrylic, metal, metalloid and other functionalities, along with hydroxyl groups. Polyester polyols (PEP) consist of ester and hydroxylic groups in one backbone. They are generally pr...

  • History of polyurethane

    The discovery of polyurethane [PU] dates back to the year 1937 by Otto Bayer and his coworkers at the laboratories of I.G. Farben in Leverkusen, Germany. The initial works focussed on PU products obtained from aliphatic diisocyanate and diamine forming polyurea, till the interesting properties of...

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