Benzoate esters of polyalkoxylated block copolymers
Patent 5271930 Issued on December 21, 1993. Estimated Expiration Date: 
November 20, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 20, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3022335 3101374 3639575 Benzoic acid ester Hypocholesterolaemic agents Benzoic acid esters and their use Patent #: 4791097 InventorsApplicationNo. 795916 filed on 11/20/1991US Classes:424/78.08, SOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI)424/60, Aromatic acid or derivative containing (e.g., aminobenzoic acid or methyl salicylate, etc.)424/70.11, Polymer containing (nonsurfactant, natural or synthetic)424/75, EMBALMING OR UNDERTAKING COMPOSITIONS424/401Cosmetic, antiperspirant, dentifriceExaminersPrimary: Page, Thurman K.Assistant: Kulkosky, Peter F. Attorney, Agent or FirmForeign Patent References
International ClassesA61K 031/765A61K 007/075 A61K 007/32 AbstractBenzoic acid esters of a polyalkoxylated block copolymer, i.e. PLURONICS, exhibit enhanced characteristics that make these esters ideally suited for skin and hair care compositions. These esters demonstrate enhanced capabilities as foam boosters, emollients, conditioners, clarifiers, solubilizers, and carriers (dilutents). In addition, both oxybenzone and benzocaine can be solubilized by these esters. | |
