Complexes of ultraviolet absorbers and quaternary ammonium compo

Details Complexes of ultraviolet absorbers and quaternary ammonium compo Complexes of ultraviolet absorbers and quaternary ammonium compo

1998-04-24

2000-04-04

Pezzuto, Helen L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

442 59, 562 46, 562 47, 564149, 564150, C07D23942

Patent

active

060463309

ABSTRACT:
This invention relates to complexes of ultraviolet absorbers with quaternary ammonium compounds which are substantially free from unwanted salts. Such complexes are formed through ionic bonds formed between the two compounds. The inventive complexes are then removed of substantially all excess inorganic salt so as to obtain an UV absorber compound which exhibits improved light- and washfastness properties, which easily coats subject surfaces, which provides excellent non-fogging and non-cracking characteristics, and which also possesses anti-static, anti-microbial, and anti-abrasion properties. This invention also concerns methods of making and utilizing such inventive ultraviolet absorbing complexes.

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