Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2007-02-13
2007-02-13
Page, Thurman K. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
Reexamination Certificate
active
10843061
ABSTRACT:
A novel fatty polypropoxylate ester which is an ester of an aliphatic or an aromatic monoacid formed by reacting the acid with a stoichiometric excess of a polypropoxylated fatty alcohol. The compounds have the following structural formula:wherein R1has the structural formula:wherein R5is a saturated or unsaturated, substituted or unsubstituted aliphatic or aromatic moiety containing from 4 to 24 carbon atoms, and x is an integer from 3 to 30; andwherein R has the structural formula:wherein R2, R3and R4are independently selected from the group consisting of methyl, ethyl, propyl or isopropyl; orwherein R6is H or OH or NH2or methyl or ethyl.The compounds possess exceptional pigment dispersant and esthetic emollient properties for use in personal care and topical pharmaceutical preparations, e.g., lipsticks, cream foundations, waterproof sunscreens, sunscreen lotions.
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DeMonico G. Frank
Needelmann Sayer B.
Smith Maria K.
Smith Ronald J.
Innovachem, Inc.
Page Thurman K.
Puttlitz Karl J.
Trivent Chemical Co., Inc.
Zall Michael E.
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