The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2002
Filed:
Dec. 01, 2000
Youngdae Kim, Seoul 135-280, KR;
Keunja Park, Seoul 135-280, KR;
Jungsoo Kim, Seoul 135-280, KR;
Jisoo Kim, Seoul 135-280, KR;
Other;
Abstract
Disclosed is polyoxypropylenepolyoxyethylene vitamin E, represented by formula (I). It is prepared by subjecting vitamin E to polyethoxylation and then, to polypropoxylation to a proper extent. The vitamin E is of superior anti-oxidation activity with water solubility. The bent chain of the polyoxypropylenepolyoxyethylene vitamin E increases the cross-sectional area of the whole molecule, making it difficult for the molecule to penetrate into the skin. It is very safe to apply to the skin. The polyoxypropylenepolyoxyethylene vitamin E has superb surface activity by forming close bilayer vesicle structures, like phospholipids or dialkyl surfactants, so it can be advantageously used in the cosmetic industry, the food industry and the medical industry. In said formula, R is —(OCH CH ) — wherein m is an integer of 0 to 150; R is (a) wherein n is an integer of 1 to 200; A is (b) or (c); B is —CH at the 5-, 7- or 8-position of vitamin E; and p is an integer of 1 or 3.