Ciba Specialty Chemicals Corporation

Basf Se Corporation

Yingxia He

Colin Dennis Campbell

Rhonda Carter

Gordian Schilling

Zhiqiang Song

Suruliappa Gowper Jeganathan

Xian-Zhi Zhou

Bingham Scott Jaynes

Kevin Rodney Gerzevske

Damien Thurber Cole

James Will

Melissa Wagner

The present invention is directed to the use of hydrophilic terpolymers in hard surface cleaners which provide easier cleaning for surface soils such as hard water stains, soap scum, limescale, mud, food, toilet stains, oil, grease, particulates and the like as well as anti-fog effects on hard surfaces such as glass, mirrors, ceramic and plastic by causing water droplets to coalesce into a film.

Amphoteric polymer for treating hard surfaces

The invention is directed to a method or use of 2,9-dichloro-quinacridone as an alpha crystal phase inhibitor and optionally, 4,11-dichloroquinacridone during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes. The invention is also directed to solid solutions of quinacridone comprising about 98 to about 80 weight % gamma or beta-quinacridone, about 0.1 to about 10 weight % 2,9-dichloroquinacridone and about 0.1 to about 10 weight % 4,11-dichloroquinacridone.

2,9-dichloro-quinacridone as &#x3b1;-quinacridone crystal phase inhibitor

The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant, optionally a defoamer, optionally an additive, and greater than about 10 wt. % water, and isolating the organic pigment.

Process for aqueous milling of quinacridone pigments

The invention is directed to a method or use of 2,9-dichloro-quinacridone as a crystal phase inhibitor during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes. 2,9-dichloroquinacridone is added to the milling composition of the crude gamma or crude beta quinacridone.

2,9-Dichloro-quinacridone as alpha-quinacridone crystal phase inhibitor

The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.

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Wilmington, DE, United States of America

Yingxia He