Initiator systems for initiating the polymerization of ethylenically unsaturated compounds and use thereof
First Claim
1. A storage stable initiator system for initiating the polymerization of ethylenically unsaturated compounds consisting essentially of a mixture of an oxygen-reactive organoboron compound and an oxygen-resistant carrier consisting essentially of oligoesters of lower hydroxy carboxylic acids whereby polymerization initiation ability of the organoboron compound is preserved when exposed to air for at least several hours.
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Abstract
Described are initiator systems for initiating the polymerization of ethylenically unsaturated compounds, which systems have been based on oxygen-reactive organo-boron compounds present in combination with oxygen-resistant carriers; the initiator systems are characterized in that they contain oligoesters of lower hydroxycarboxylic acids as carriers. The invention further relates to the use of these initiator systems in adhesive systems in the technical field, but especially also in the areas of surgery and/or dentistry for curing body-resorbable or body-resistant adhesive agents, cements and/or filler compositions or for forming molded parts of synthetic materials.
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21 Claims
- 1. A storage stable initiator system for initiating the polymerization of ethylenically unsaturated compounds consisting essentially of a mixture of an oxygen-reactive organoboron compound and an oxygen-resistant carrier consisting essentially of oligoesters of lower hydroxy carboxylic acids whereby polymerization initiation ability of the organoboron compound is preserved when exposed to air for at least several hours.
Specification