C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 47/04 (2006.01) C07D 487/22 (2006.01) C09B 47/08 (2006.01) C11D 3/00 (2006.01) C11D 3/395 (2006.01) C11D 3/40 (2006.01) D06L 3/12 (2006.01)
Patent
CA 2227749
Low hue photobleaching compositions comprising oragnosilicon (IV) phthalocyanine and naphthalocyanines having Q-band absorption maxima at wavelengths greater than 660 nm and increased triplet state yields whereby production of singlet oxygen is increased. Use of Si4+ phthalocyanine and naphthalocyanines compounds in photobleaching compositions allows for formulation of low hue laundry compositions, bleach compositions, and hard surface cleaners.
On décrit des compositions de photoblanchiment faiblement teintées et comprenant une phtalocyanine et des naphtalocyanines d'organosilicium (IV), lesquelles présentent des longueurs d'ondes d'absorption maximale dans la bande Q d'au moins 660 nm, ainsi que des rendements accrus à l'état de triplet, ce qui a pour effet d'augmenter la production d'oxygène singulet. L'utilisation de composés de phtalocyanine et naphtalocyanines de Si?4+¿ dans des compositions de photoblanchiment permet de formuler des compositions de lessive pour le linge, de blanchiment et des nettoyants de surfaces dures, faiblement teintés.
Case Western Reserve University
Dimock Stratton Llp
The Procter & Gamble Company
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