| 摘要 |
1479425 Bis-acrylates containing hydroxyl groups; their preparation and use KULZER & CO GmbH 11 Feb 1975 [12 Feb 1974] 5827/75 Heading C2C [Also in Division C3] Compounds of the formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen or methyl and Z is a group of the formula may be obtained by adding on 2 molecules of an hydroxyalkyl acrylate or methacrylate, in which the alkyl group contains 2 or 3 carbons, to a bis - epoxide which is 3(3,4 - epoxycyclohexyl) - 8,9 - epoxy - 2,4 - dioxaspiro- (5,5) - undecane, the 3,4 - epoxycyclohexylmethyl ester of 3,4-epoxycyclohexane carboxylic acid, bis(3,4-epoxy-6-methylcyclohexyl. methyl)adipate, bis(2,3 - epoxycyclopentyl)- ether, the bis-glycidyl ether of dihydroxy tricyclo [5,2,1,0<SP>2,6</SP>] decane or bisphenol A diglycidyl ether, in the presence of a catalytic amount of boron trifluoride etherate, generally at a temperature below 120‹ C. |
