SOLID MIXTURES OF ALPHA-HYDROXYCARBONYL DERIVATIVES OF ALPHA-METHYLSTYRENE OLIGOMERS AND THEIR USE

Title:

SOLID MIXTURES OF ALPHA-HYDROXYCARBONYL DERIVATIVES OF ALPHA-METHYLSTYRENE OLIGOMERS AND THEIR USE

Document Type and Number:

WIPO Patent Application WO2002085832

Kind Code:

A3

Abstract:

The present invention refers to solid mixtures of alpha hydroxycarbonyl derivatives of alpha-methylstyrene oligomers containing at least 90 % of the dimer isomers, the dimer isomer ratio being between 2.5 and 7, to their preparation and to their use as photoinitiators in photopolymerisation.

Inventors:

VISCONTI MARCO (IT)
NORCINI GABRIELE (IT)
LI BASSI GIUSEPPE (IT)

Application Number:

PCT/EP2002/003674

Publication Date:

December 27, 2002

Filing Date:

April 03, 2002

Export Citation:

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Assignee:

LAMBERTI SPA (IT)
VISCONTI MARCO (IT)
NORCINI GABRIELE (IT)
LI BASSI GIUSEPPE (IT)

International Classes:

C07C45/81; C07C49/83; C08F2/50; C08F6/12; C08F8/48; G03F7/031; (IPC1-7): C07C49/83; C07C45/81; G03F7/031; C08F2/50

Foreign References:

US4987159A

1991-01-22

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