[EN] NOVEL CYCLIC OXYGENATED COMPOUNDS HAVING COOLING, FRAGRANCE, AND FLAVOR PROPERTIES, AND USES THEREOF [FR] NOUVEAUX COMPOSES CYCLIQUES OXYGENES POSSEDANT DES PROPRIETES DE RAFRAICHISSEMENT, DE FRAGRANCE ET DE SAVEUR, ET UTILISATIONS DESDITS COMPOSES
[EN] KETOCAMPHOLENIC ACID DERIVATIVES AND THEIR USE IN FRAGRANCE APPLICATIONS [FR] DERIVES D'ACIDE CETOCAMPHOLENIQUE ET LEUR UTILISATION DANS DES APPLICATIONS DE FRAGRANCE
Novel Cyclic Oxygenated Compounds Having Cooling, Fragrance, and Flavor Properties, and Uses Thereof
申请人:Selifonov Sergey
公开号:US20070274928A1
公开(公告)日:2007-11-29
Compositions that include compounds capable of producing a cooling sensory effect such as certain hydroxy-ketones and hydroxy-aldehyde compounds, their cyclic semi-ketals and semiacetals, and other derivatives thereof. The compounds impart a refreshing and cooling sensation of long duration and high potency, and thus are useful in a variety of formulations, including consumer products such as mouth formulations, food and beverage products, tobacco and smoking articles, fragrances, toiletries, ointments, and the like.
Ketocampholenic acid derivatives and their use in fragrance applications
申请人:Selifonov Sergey
公开号:US20060111270A1
公开(公告)日:2006-05-25
Ketocampholenic acid derivatives, their use, and methods of preparing these derivatives are described. In one aspect, novel derivatives of 2-oxo-4,5,5-trimethylcyclopent-3-enylacetic acid (herein further referred as ketocampholenic acid or KCA), which is a natural product that may be prepared by microbial biological oxidation of camphor or of a suitable precursor, are described. Novel derivative compounds may be prepared according to the methods described in the present invention. Such derivative olfactory properties that make them useful in fragrance and flavor applications.
Asahina; Ishidate, Chemische Berichte, 1934, vol. 67, p. 440,443
作者:Asahina、Ishidate
DOI:——
日期:——
Interlaminar fracture and low-velocity impact of carbon/epoxy composite materials
作者:J. H. Hwang、O. Kwon、C. S. Lee、W. Hwang
DOI:10.1007/bf02681828
日期:2000.3
The interlaminar fracture and the low-velocity impact behavior of carbon/epoxy composite materials have been studied using width-tapered double cantilever beam (WTDCB), end-notched flexure (ENF), and Boeing impact specimens. The objectives of this research are to determine the essential parameters governing interlaminar-fracture and damage of realistic laminated composites and to characterize a correlation between the critical strain energy release rates measured by interlaminar fracture and by low-velocity impact tests. The geometry and the lay-tip sequence of specimens are designed to probe various conditions such as the skewness parameter, beam volume, and test fixture. The effect of interfacial ply orientations and crack propagation directions on interlaminar fracture toughness and the effect of ply orientations and thickness on impact behavior ar-e examined. The critical strain energy release rare was calculated from the respective tests: in the interlaminar fracture test the compliance method and linear beam theory are used; the residual energy calculated from the impact test and the total delamination area estimated by ultrasonic inspection are used ill the low-velocity, impact test. Results show that the critical strain energy release rate is affected mainly by ply orientations. The critical strain energy release rate measured by the low-velocity impact test lies between the mode I and mode II critical strain energy release rates obtained by the interlaminar fracture test.