6-acyl-(6h)-dibenz[c,e] [1,2]oxaphosphorin 6-oxides, their...

Details 6-acyl-(6h)-dibenz[c,e] [1,2]oxaphosphorin 6-oxides, their... 6-acyl-(6h)-dibenz[c,e] [1,2]oxaphosphorin 6-oxides, their...

C - Chemistry, Metallurgy

07

F

96/175, 260/457.

C07F 9/32 (2006.01) C07F 9/40 (2006.01) C07F 9/6571 (2006.01) C08G 59/68 (2006.01) C08K 5/5357 (2006.01) C09D 11/10 (2006.01) G03F 7/029 (2006.01)

Patent

CA 1318684

ABSTRACT The invention relates 6-acyl-(6H)-dibenz[c,e][1,2]- oxaphosphorin-6-oxides of the formula Image (I) wherein each of R1, R2 and R3 may be present one or more times and R1, R2 and R3 represent halogen having an atomic number of from 9 to 35, alkyl or alkoxy each having from 1 to 6 carbon atoms and wherein Ar represents an aromatic hydrocarbon group having from 6 to 10 carbon atoms. The invention further relates to a process for the preparation of the afore-mentioned compounds and polymerizable compositions containing them as an essential ingredient as a photo-initiator. Finally the invention relates to 6-alkoxy-(6H)-dibenz[c,e][1,2]- oxaphosphorin of the formula II Image (II) wherein each of R1 and R2 may be present once or more times and R1 and R2 represent halogen having an atomic number of from 9 to 35, alkyl or alkoxy each having from 1 to 6 carbon atoms, at least one R1 being, however, halogen, and wherein R4 represents alkyl having from 1 to 6 carbon atoms.

575427

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