摘要:
The present invention relates to open chain alkoxyamine compounds, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) at least one open chain alkoxyamine compound. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of open chain alkoxyamine compounds for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator X, as well as a process and their use for polymerization are also subjects of the present invention.
摘要:
A color photographic material is described containing a compound of formula (I) wherein, if n=1, R1 is, inter alia, a radical of formula (II), and, if n=2, R1 is unsubstituted or C1–C4alkyl- or hydroxy-substituted phenylene or naphthylene; or —R12—X—R13—, and other residues are as defined in claim 1. The compound of formula (I) is effective as scavenger of the oxidized form of the developer (Dox scavenger), especially when contained in an interlayer between light sensitive layers. Selected compounds of this class can also be used as additives, for example as dye stabilizer, in color photographic materials, or as an antioxidant for organic materials.
摘要:
The present invention relates to 1-alkoxy-polyalkyl-piperidine derivatives containing a structural element of formula (I) G1, G2, G3, G4 are independently C1-C6alkyl with the proviso that at least one is not methyl or G1 and G2 or G3 and G4, or G1 and G2 and G3 and G4 together form a C5-C12cycloalkyl group; G5, G6 independently are H, C1-C18alkyl, phenyl, naphthyl or a group COOC1-C18alkyl and X represents a group such that the free radical X● derived from X is capable of initiating polymerization of ethylenically unsaturated monomers, with the proviso that compounds A1 and A2 are excluded Further subjects of the invention are a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a 1-alkoxy-polyalkyl-piperidine derivative, a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-polyalkyl-piperidine derivatives for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator X●, as well as a process for polymerization are also subjects of the present invention.
摘要:
Benzofuran-2-ones, compositions comprising benzofuranones, processes for preparing them, and their use as colorants for high or low molecular mass organic material.
摘要:
The invention describes novel compounds of the formula (I) wherein the general symbols are as defined in claim (1) and R1 is an aromatic radical with electron withdrawing substituents, as stabilizers for protecting organic materials, in particular polymers and lubricants, against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.
摘要:
Oxobenzofuranylidene-dihydroindolones of formulae trans-(Ia) and cis-(Ib) and of formulae trans-(IIa) and cis-(IIb) wherein A1 and A2 are each independently of the other unsubstituted or mono- to tetra-substituted ortho-C6-C18arylene, and R1 is hydrogen or an organic radical, with the proviso that when R1 is hydrogen and A2 is 1,2-phenylene, A1 is not 9,10-anthraquinon-1,2-ylene, 4-chloro-3,5-dimethyl-1,2-phenylene or 3,5-dimethyl-1,2-phenylene, processes for their preparation and the use thereof.
摘要:
Process for the preparation of compounds of formula (I), wherein the general symbols are as defined in claim 1, which process comprises reacting a compound of formula (V), wherein the general symbols are as defined in claim 1, with carbon monoxide in the presence of a catalyst.
摘要:
The invention described novel compounds of formula wherein the general symbols are as defined in claim 1, as stabilizers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
摘要:
This invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
摘要:
A description is given of novel compounds of formula I ##STR1## wherein R.sup.1, R.sub.2, R.sub.3, and R.sup.4 are hydrogen, alkyl, phenylalkyl, or alkoxy and where R.sub.5 and R.sub.6 are hydrogen or phenyl or together with the linking carbon atoms, are cycloalkenylene or cycloalkenylene which is interrupted by oxygen or sulfur. These compounds are useful as stabilizers for organic materials against oxidative, thermal or light-induced degradation.