| 释义 |
Perbunan|pəˈbjuːnən|
Also perbunan.
[a. G. Perbunan, f. per- + buna buna + N, chem. symbol for nitrogen.]
A proprietary name for a nitrile rubber first made in Germany and originally called Buna-N.
1938Trade Marks Jrnl. 4 May 551/2 Perbunan... Compositions consisting mainly of reaction products obtained by the polymerisation of butadiene hydrocarbons, sold in the form of sheets, blocks, tubes, [etc.]... I. G. Farbenindustrie Aktiengesellschaft.., Frankfort-on-Main, Germany; manufacturers. 1938Chem. Abstr. XXXII. 3663 The mech. and elec. properties of Buna-S and Perbunan (formerly Buna-N,..),..are described... The elec. properties of both are excellent, and Buna-S is less permeable to water than are Perbunan and natural rubber. 1940Jrnl. R. Aeronaut. Soc. XLIV. 159 A cable consisting of rubber covered with a thin perbunan sheath and an oil varnished ozone-resisting braid would probably give the best results. 1959Times 27 Apr. (Rubber Industry Suppl.) p. ii/4 These basic synthetic rubbers, buna S, neoprene and perbunan, developed in the 1930s, were the forerunners of the main synthetic rubbers we use to-day. 1959Official Gaz. (U.S. Patent Office) 18 Aug. tm 82/1 Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk, Germany. Filed Feb. 12, 1959. Perbunan... For rubber and rubber substitute materials. 1973Nature 14 Sept. 93/1, I have carried out some measurements on an alkaline perbunan latex dispersion. |