Method of producing ultraviolet radiation absorbent

Details Method of producing ultraviolet radiation absorbent Method of producing ultraviolet radiation absorbent

2007-01-09

2007-01-09

Tucker, Zachary C. (Department: 1624)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S090000, C544S073000, C544S089000

Reexamination Certificate

active

11100193

ABSTRACT:
An ultraviolet radiation absorbent for thermoplastic polymer materials such as polyethylene terephthalate or polycarbonate contains cyclic imino ester compound of a specified structure in an amount of over 99.5 weight % and less than 100 weight % and having an acid value in the range of 1×10−3–1 and/or a chlorine ion content in the range of 1×10−1–1×103ppm.

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