novolakn.

Brit.

/ˈnəʊvə(ʊ)lak/, U.S.

/ˈnoʊvoʊˌlæk/

Forms: 1900s– novolac, 1900s– novolak. Also with capital initial.

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin novus , English -lak , lacquer n.

Etymology: < classical Latin novus new adj. + -lak (representing the first syllable in lacquer n.).

Manufacturing Technology.

Any of a range of soluble, fusible resins used extensively in varnishes, which are formed by condensing formaldehyde with phenol using an acid catalyst.

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

1909 L. H. Baekeland in Jrnl. Industr. & Engin. Chem. 1 547/2 In order to simplify matters, I propose to call this substance Novolak.

1944 H. R. Fleck Plastics ix. 203 Such properties as the durability and hardness of the Novolac type of resin were obviously very desirable properties to have in a varnish.

1973 Materials & Technol. VI. viii. 590 The prime use of moulding powders based on novolak resins is for the production of articles and components in the electrical engineering field.

1989 Encycl. Brit. XXI. 292/1 The two processes in general use are the one-step process..and the two-step process, using an excess of phenol to produce novolacs, resins that have no reactive methylol groups and must be mixed with an aldehyde to undergo further reaction.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	novolak
释义	novolakn. Brit. /ˈnəʊvə(ʊ)lak/, U.S. /ˈnoʊvoʊˌlæk/ Forms: 1900s– novolac, 1900s– novolak. Also with capital initial. Origin: A borrowing from Latin, combined with an English element. Etymons: Latin novus , English -lak , lacquer n. Etymology: < classical Latin novus new adj. + -lak (representing the first syllable in lacquer n.). Manufacturing Technology. Any of a range of soluble, fusible resins used extensively in varnishes, which are formed by condensing formaldehyde with phenol using an acid catalyst. 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 1909 L. H. Baekeland in Jrnl. Industr. & Engin. Chem. 1 547/2 In order to simplify matters, I propose to call this substance Novolak. 1944 H. R. Fleck Plastics ix. 203 Such properties as the durability and hardness of the Novolac type of resin were obviously very desirable properties to have in a varnish. 1973 Materials & Technol. VI. viii. 590 The prime use of moulding powders based on novolak resins is for the production of articles and components in the electrical engineering field. 1989 Encycl. Brit. XXI. 292/1 The two processes in general use are the one-step process..and the two-step process, using an excess of phenol to produce novolacs, resins that have no reactive methylol groups and must be mixed with an aldehyde to undergo further reaction. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1909
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