C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/616.3
C07C 39/12 (2006.01) C07C 37/11 (2006.01) C07C 37/14 (2006.01) C07C 37/52 (2006.01) C07C 39/21 (2006.01) C07D 303/24 (2006.01) C08G 59/32 (2006.01) C08G 59/62 (2006.01)
Patent
CA 1097692
Abstract of the Disclosure A novel trimer of p-isopropenyl phenol of the structure Image which is useful as a material or a curing agent for epoxy resins. The linear trimer includes a cis-isomer (m.p. 225.5 - 227°C) and a trans-isomer (m.p. 167 - 168°C). It is prepared by reacting p-isopropenyl phenol or its linear polymer in the presence of an acid catalyst such as sulfuric acid, boron fluoride or activated clay in an aromatic hydrocarbon, halogenated hydrocarbon, substituted aromatic hydrocarbon or aprotic polar solvent (e.g., benzene, carbon tetrachloride, nitrobenzene or dioxane).
316889
Aoi Kunio
Morimoto Yoshio
Takase Tsutomu
Yamazaki Noboru
Yuasa Teruo
Mitsui Toatsu Chemicals Inc.
Smart & Biggar
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