Patent ID: 6815498
Filing Date: 2004-11-09
Classification: C08F

Abstract:
A process for the preparation of a reaction product (A), which comprises the following stage:reacting, under free radical conditions, a reaction mixture consisting of at least one monomer (a) capable of free radical polymerization, at least one free radical initiator, selected from the from consisting of 2,2â€²-azobis(isobutyronitrile), 2,2â€²-azobis(2-cyano-2-butane), dimethyl 2,2â€²-azobisdimethylisobutyrate, 4,4â€²-azobis(4-cyanopentanoic acid), 1,1â€²-azobis(cyclohexanecarbonitrile), 2-(t-butylazo)-2-cyanopropane, 2,2â€²-azobis[2-methyl-N-(1,1)-bis(hydroxymethyl)-2-hydroxyethyl]propionamide, 2,2â€²-azobis[2-methyl-N-hydroxyethyl]-propionamide, 2,2â€²-azobis(N,Nâ€²-dimethyleneisobutyramidine) dihydrochloride, 2,2â€²-azobis(2-amidinopropane) dihydrochloride, 2,2â€²-azobis(N, Nâ€²-dimethyleneisobutyramine), 2,2â€²azobis(2-methyl-N-[1,1-bis(hydroxymethyl)-2-hydroxyethyl]propionamide), 2,2â€²-azobis(2-methyl-N-[1,1-bis(hydroxymethyl)ethyl]propionamide), 2,2â€²-azobis[2-methyl-N-(2-hydroxyethyl)propionamide]2,2â€²-azobis(isobutyramide) dihydrate, 2,2â€²-azobis(2,2,4-trimethylpentane), 2,2â€²-azobis(2-methylpropane), t-butyl peroxyacetate, t-butyl peroxybenzoate, t-butyl peroxyoctoate, t-butyl peroxyneodecanoate, t-butylperoxy isobutyrate, t-amyl peroxypivalate, t-butyl peroxypivalate, di-isopropyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, dicumyl peroxide, dibenzoyl peroxide, dilauroyl peroxide, potassium peroxydisulfate, ammonium peroxydisulfate, di-t-butyl hyponitrite and dicumyl hyponitrite, a compound of the formula (I), â€ƒwhere R1 to R4, independently of one another, are each hydrogen, an alkyl radical, a cycloalkyl radical or an aralkyl radical, each of which may be unsubstituted or substituted, or an unsubstituted or substituted aromatic hydrocarbon radical, wherein at least two of the radicals R1 to R4 are an unsubstituted or substituted aromatic hydrocarbon radical, or R1 and R2, or R3 and R4, in each case in pairs, are a substituted or unsubstituted aromatic hydrocarbon having 6 to 18 carbon atoms and a functional group which, in conjugation with the Câ€”C double bond in the formula I, has a multiple bond between a carbon atom and a heteroatom, water in an amount of 0 to 10% by weight based on the weight of the reaction mixture, and at least one solvent.