C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
402/1.5
C08K 5/41 (2006.01) C08G 59/68 (2006.01) C08G 65/10 (2006.01) C08L 61/06 (2006.01) G03F 7/029 (2006.01)
Patent
CA 1161592
Case 3-12953/ARL 300/1+2 - 1 - ABSTRACT Photopolymerisation by Means of Sulfoxonium Salts Substances (I) capable of being converted into higher- molecular weight materials under the influence of a cationic catalyst, such as 1,2-epoxides, aminoplasts, vinyl monomers and prepolymers, or phenoplasts, are so converted by exposure to actinic radiation in the presence of an aryl- or aroyl- carbamoylsulfoxonium salt (II) of formula Image where p is zero or 1, q is 1 to 4, Ar denotes an aromatic group, R6 denotes -H or a group -COR9 or -CONH(CO)rR10, R7 denotes an alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, aryl, or aralkyl group, R8 has the same meaning as R7 but may alternatively represent a dialkylamino group or, if R7 denotes alkyl, it may alternatively represent an arylamino group, R9 and R10 each denote a saturated or ethylenically unsaturated radical, - 2 - r is zero or 1, t is 1, 2, or 3,.and zt- denotes a t-valent anion of a protic acid. Typical salts (II) are acetanilinodimethylsufoxonium hexafluorophosphate, benzoylcarbamoyldimethylsulfoxonium hexafluorophosphate, 3,4-tichloracetanilinodimethylsulfoxonium hexafluoroarsenate, 2,4-bis(dimethylsuloxoniummethylcarbamoyl)- toluene dihexafluorophospha$e, 4-methylacetanilinodimethylsulfoxonium chloride, and tris(acetanilinodimethylsulfoxonium) orthophosphate. When I is a polyepoxide or a resol, it may be photopolymerised by means of II and subsequently crosslinked by heating with a latent heat-curing agent.
381338
Green George E.
Irving Edward
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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