Sheffield, MA–Febuary 16, 2005–Sheffield Plastics Inc. has announced that MAKROLON® WG (Window Grade) polycarbonate sheet is now available in sheets ranging in thickness from .750" thick up to 2.000" thick. Previous Sheffield polycarbonate sheet products had a maximum thickness of up to .500". This new thickness range makes MAKROLON¨ WG ideal for a variety of challenging environments ranging from containment to use for fabricated parts. It has many times the impact strength and less than half the weight of glass. The superior strength of MAKROLON WG, combined with its clarity and excellent dimensional stability, makes it ideal for many demanding applications, including sight windows for tanks/vessels, viewport windows, medical parts, and some military parts.

MAKROLON WG is an amorphorus thermoplastic made from Bayer's MAKROLON polycarbonate resin. MAKROLON WG polycarbonate sheet offers extremely high impact strength and high modulus of elasticity. It features excellent clarity, dimensional stability, and good dielectric properties. It offers excellent thermal performance and is fabrication friendly. MAKROLON WG also demonstrates low levels of black speck contaminates or other impurities, and is UV stable. For more information call 1-800-254-1707, Fax: 1-800-457-3553, visit www.sheffieldplastics.com, or write Sheffield Plastics Inc., 119 Salisbury Road, Sheffield, MA 01257.

Sheffield Plastics Inc. is the recognized global leader in high performance plastics with its MAKROLON® polycarbonate sheet products used a in a wide variety of industrial, architectural, commercial, sign and aerospace applications. The addition of Makrofol® PC and Bayfol® polycarbonate blend films to the polycarbonate sheet offerings of Sheffield Plastics opens up design possibilities for a wide range of applications. These engineered films are used in a variety of markets including: automotive; appliance; cards (security and smart cards); medical; nameplate and labels; packaging; P-O-P (including signage); graphic arts, telecommunications and other hand-held electronics. For more information, call 1-800-254-1707, Fax: 1-800-457-3553, visit www.sheffieldplastics.com, or write Sheffield Plastics Inc., 119 Salisbury Road, Sheffield, MA 01257.

This news release contains forward-looking statements based on current assumptions and forecasts made by Bayer Group management. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in our public reports filed with the Frankfurt Stock Exchange and with the U.S. Securities and Exchange Commission (including our Form 20-F). The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.

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