Gemini glycidyl ether adducts of polyhydroxyalkyl...

Colloid systems and wetting agents; subcombinations thereof; pro – Compositions containing a wetting agent; processes of... – The agent contains organic compound containing nitrogen,...

Reexamination Certificate

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C516S198000, C516S204000, C106S031890, C106S401000, C528S421000, C528S422000, C564S001000, C564S474000, C564S478000, C564S487000, C564S511000

Reexamination Certificate

active

06924315

ABSTRACT:
The present invention provides compounds useful as surfactants having formula (1), including isomers thereof:wherein a and b are integers independently selected from about 3 to about 6; x is an integer from about 1 to about 12; (m+n) is from about 1 to about 4; the R1groups are independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about C3to about C30atoms; and when (m+n) is equal to or greater than 2, each R1may be independently R2or R3, wherein R2and R3are independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about C3to about C30atoms. The invention also provides a method for reducing surface tension in a waterborne composition or an industrial process by the incorporation of a surfactant having formula (1) and an aqueous composition comprising a surfactant having formula (1). The invention further provides a product prepared by the reaction of a N,N′-bis(polyhydroxyalkyl)alkylenediamine with a glycidyl ether.

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