Green George Edward (Cherry Hinton EN) Stark Bernard Peter (Stapleford EN)
출원인 / 주소
Ciba-Geigy Corporation (Ardsley NY 03)
인용정보
피인용 횟수 :
14인용 특허 :
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초록▼
Contamination of anaerobically-curing adhesive compositions by minute traces of metals such as iron, either during manufacture or storage, can result in premature polymerization, the shelf life of the composition being severely shortened, or, at best, unpredictable. In the anaerobic adhesive composi
Contamination of anaerobically-curing adhesive compositions by minute traces of metals such as iron, either during manufacture or storage, can result in premature polymerization, the shelf life of the composition being severely shortened, or, at best, unpredictable. In the anaerobic adhesive composition now disclosed, at least part of the polymerizable monomer comprises a novel acrylate ester containing a structure of the formula -OOCCH2NCH2COOH, │ these esters being capable of chelating the metal contamination.
대표청구항▼
Anaerobically-polymerisable compositions comprising a polymerisable monomer and a redox-activatable initiator of free-radical polymerisation, in which the said monomer is an ester of the general formula R1 │ CH2=C-COOa �2NCH2COO │ R2 b where a is an integer of 1 to 4, and b is an integer of 1 or 2,
Anaerobically-polymerisable compositions comprising a polymerisable monomer and a redox-activatable initiator of free-radical polymerisation, in which the said monomer is an ester of the general formula R1 │ CH2=C-COOa �2NCH2COO │ R2 b where a is an integer of 1 to 4, and b is an integer of 1 or 2, R denotes the residue, after removal of (a +b) alcoholic hydroxyl groups, of an aliphatic, cycloaliphatic, araliphatic, or heterocycloaliphatic alcohol, R1 denotes -H, -Cl, -CH3, or -C2H5, and R2 denotes a hydrogen atom or an aliphatic, cycloaliphatic, aromatic, araliphatic, heterocyclic, or heterocycloaliphatic group of 1 to 24 carbon atoms. Anaerobically-polYmerisable compositions comprising a polymerisable monomer and a redox-activatable latent initiator of free-radical polymerisation, in which the said monomer comprises an ester made by the esterification of an hydroxyl-containing acrylate ester of formula R1 │ CH2=C-COO-R--- OH a b with b g-mol. of an anhydride of formula CH2-CO R19N��2-CO per g-mol. of the said acrylate ester, where R, R1, a, and b have the meanings assigned in claim 1, and R19 denotes a hydrogen atom or an aliphatic, cycloaliphatic, aromatic, araliphatic, heterocyclic, or heterocycloaliphatic group of 1 to 24 carbon atoms.
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