Perbunann.

Brit.

/pəˈbjuːnən/, U.S.

/pərˈb(j)unən/

Forms: also with lower-case initial.

Origin: A borrowing from German. Etymon: German Perbunan.

Etymology: < German Perbunan (1938) < per- (perhaps in permeabel permeable adj.) + Buna Buna n. + N , chemical symbol for nitrogen (see N n. 7).Perbunan was developed in Germany in the early 1930s as Buna-N. Compare:1938 Chem. Abstr. 32 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.

A proprietary name for: a nitrile rubber first made in Germany.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > synthetic rubber > specific

methyl rubber1919

Thiokol1930

polychloroprene1931

polyisobutylene1931

polybutadiene1935

polyisoprene1935

polysulphide1935

Buna1936

neoprene1937

Perbunan1938

butyl rubber1940

camel-back1942

polyesteramide1943

polydiene1946

nitrile rubber1947

cold rubber1948

SBR1956

Spandex1959

nitrile1983

1938 Trade 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.].

1959 Times 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.

1992 RS Components: Electronic & Electr. Products July–Oct. 65/2 A range of metal cable glands manufactured from nickel plated brass with a neoprene tapered seal and Perbunan O ring seal.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	perbunan
释义	Perbunann. Brit. /pəˈbjuːnən/, U.S. /pərˈb(j)unən/ Forms: also with lower-case initial. Origin: A borrowing from German. Etymon: German Perbunan. Etymology: < German Perbunan (1938) < per- (perhaps in permeabel permeable adj.) + Buna Buna n. + N , chemical symbol for nitrogen (see N n. 7).Perbunan was developed in Germany in the early 1930s as Buna-N. Compare:1938 Chem. Abstr. 32 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. A proprietary name for: a nitrile rubber first made in Germany. ΘΚΠ society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > synthetic rubber > specific methyl rubber1919 Thiokol1930 polychloroprene1931 polyisobutylene1931 polybutadiene1935 polyisoprene1935 polysulphide1935 Buna1936 neoprene1937 Perbunan1938 butyl rubber1940 camel-back1942 polyesteramide1943 polydiene1946 nitrile rubber1947 cold rubber1948 SBR1956 Spandex1959 nitrile1983 1938 Trade 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.]. 1959 Times 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. 1992 RS Components: Electronic & Electr. Products July–Oct. 65/2 A range of metal cable glands manufactured from nickel plated brass with a neoprene tapered seal and Perbunan O ring seal. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1938
随便看	henna-fingered henna-haired henna-painted henna-red henna-stained henna-tattooed henna-tinted henna-tressed hennabearded hennabrown hennacoloured hennadyed hennaed hennaer hennaest hennafingered hennahaired hennaing hennapainted hennared hennas hennastained hennatattooed hennatinted hennatressed