Arco Chemical Technology, L.p.

Ensci Inc.

David M Braunstein

Haven S Kesling, Jr

Naum Pinsky

Jianzhong Shen

Saulius A Alkaitis

Sujuan Ba

Maurice E Fitzgerald

A process for alkoxylating phenols is disclosed. The process comprises reacting a carbonyl-functionalized phenol with an alkylene oxide in the presence of a substantially non-crystalline double metal cyanide (DMC) catalyst. The process offers fast reaction times at low catalyst levels, reduced problems with condensation side reactions, and low-color, low-viscosity, low-polydispersity alkoxylated phenols. The process enables efficient preparation of alkoxylated carbonyl-functonalized phenols that are especially valuable in the surfactant industry.

Process for alkoxylating carbonyl-functionalized phenols using double

A battery element useful as at least a portion of the positive plates in a lead-acid battery comprises: an acid resistant substrate at least partially coated with an electrically conductive coating; and a fluid impervious matrix layer having mutually opposing first and second surfaces situated such that at least a portion of the coated substrate is embedded in the matrix layer which comprises polymer having increased polarity relative to polypropylene. This battery element may also be used in the bipolar plates of a lead-acid battery.

Battery element and battery incorporating polar polymer system

Growing community of inventors

Berwyn, PA, United States of America

David M Braunstein