单词 | coumarone |
释义 | coumaronen. Chemistry. a. A colourless liquid, C8H6O, which may be distilled from coal-tar or synthesized, and which is structurally a benzene ring fused to a furan ring; benzofuran; also, any of the derivatives of this compound. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > other benzene derivatives iodoxybenzene1865 retene1866 trimethylbenzene1868 quinol1871 paradichlorobenzene1876 coumarone1883 thiophene1883 antipyrin1884 thiotoluene1885 thioxylene1885 phthalaldehyde1886 trimesic acid1889 iodosobenzene1892 benzodiazepine1934 1883 Jrnl. Chem. Soc. 44 474 Coumarone is a colourless oil, heavier than water. 1910 Encycl. Brit. VII. 309/1 Coumarone, C8H6O,..is a colourless liquid which boils at 171– 172° C. and is readily volatile in steam, but is insoluble in water and in potash solution. 1957 E. H. Rodd Chem. Carbon Compounds IV. iii. 169 Coumarones are obtained from o-hydroxy-ω-halogenoacetophenones. 1963 F. M. Dean Naturally Occurring Oxygen Ring Compounds v. 135 The older name for benzofuran, coumarone, is nearly obsolete. b. coumarone resin n. any of various thermoplastic resins produced by polymerization of coumarone, usually in mixtures with indene (so coumarone-indene resin), and used esp. in the rubber and varnish industries. ΘΚΠ society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > synthetic resin > specific synthetic resins coumarone resin1900 novolak1909 glyptal1915 marblette1927 Vinylite1929 polyolefin1930 polysulphone1934 urea resin1937 melamine resin1939 polyurethane1939 polyvinylidene chloride1940 polyvinyl butyral1941 polyimide1945 Teflon1945 Araldite1946 polytetrafluoroethylene1946 epoxy resin1950 urethane1956 Maraglas1962 tartan1964 alkyd1984 1900 Jrnl. Chem. Soc. 78 i. 656 Indene, and Coumarone Resins. 1935 C. Ellis Chem. Synthetic Resins I. vii. 123 Cumarone resin is employed for a variety of purposes, particularly in the manufacture of varnishes, printing inks, waterproofing materials, rubber compositions, floor tiles and chewing gum. 1947 R. L. Wakeman Chem. Commercial Plastics xiii. 287 Patents relating to coumarone-indene resins. 1951 H. M. Langton et al. Synthetic Resins (ed. 3) vii. 272 Coumarone resins are graded mainly by colour and melting point. 1966 J. A. Brydson Plastics Materials xiv. 284 Coumarone resins are used considerably in the paint and varnish industry. This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022). < n.1883 |
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