초록 ▼

Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic

Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic complex salt and at least one accelerator; and a method for curing the compositions. The cured compositions can provide useful articles. The invention also provides compositions of matter comprising an organometallic complex salt and at least one compound selected from the Class 1 and Class 2 compounds disclosed herein.

대표청구항 ▼

[ We claim:] [1.]1. A method comprising the step of adding an accelerator to increase the rate, or reduce the temperature, of cure of an energy-polymerizable composition wherein the composition comprises a cationically curable material and at least one salt of an organometallic complex cation, where

[ We claim:] [1.]1. A method comprising the step of adding an accelerator to increase the rate, or reduce the temperature, of cure of an energy-polymerizable composition wherein the composition comprises a cationically curable material and at least one salt of an organometallic complex cation, wherein said cation contains at least one carbon atom bonded to a transition metal atom, and wherein said accelerator, or an active portion thereof, comprises at least one compound selected from classes 1 and 2whereinclass 1 comprises compounds represented by the following formulawherein molecules of Class 1 comprise dihydroxy aromatics wherein each R.sup.1, independently, can be hydrogen or a radical moiety selected from substituted and unsubstituted alkyl, alkenyl, alkynyl, and alkoxy groups containing from 1 to 30 carbon atoms, or groups of one to four substituted or unsubstituted aromatic rings wherein two to four rings can be fused or unfused, or two R.sup.1 s taken together can form at least one ring which is saturated or unsaturated and the ring can be substituted or unsubstituted and wherein when the molecule contains more than two aromatic hydroxy groups, at least two of the hydroxy groups are adjacent to each other andclass 2 comprises compounds represented by the following formulawherein molecules of Class 2 comprise those compounds having a .beta.-diketone moiety wherein each R.sup.2 can be the same or different and, excluding hydrogen, can be the same as R.sup.1 described for the Class 1 accelerators, and wherein R.sup.3 can be a substituted or unsubstituted alkyl or aryl group.