摘要 |
The invention provides a retarded acid-curing pre-polymeric composition wherein the composition comprises an acid, a pre-polymer and hydroxylamine; use of hydroxylamine as a retarder for an acid-curing pre-polymer composition; a method of retarding the curing of an acid-curing pre-polymeric composition which method comprises the step of adding hydroxylamine to the pre-polymer to form a pre-polymer mixture; and a method of curing a retarded acid-curing pre-polymeric composition wherein the method comprises the step of heating the composition to an elevated temperature for use in improving processing and controlling reactivity in a wide range of industrial applications.
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