Catalyst system for curing phenolic resole resins
AssigneeHexion Specialty Chemicals (Mumbai) Pvt. Ltd.
InventorsKrishnama Naidu SOMPALLI, Srinivasan NARASHIMHAN
Life of this patent
Estimating the term…
Abstract
The present invention relates to a catalyst system which improves the work life of acid-catalyzed resole resins at higher ambient temperatures and provides extended shelf life. The catalyst system comprises an inorganic acid catalyst and one or more polyhydric alcohols. In particular, the present invention relates to a catalyst system wherein the inorganic acid and the alcohol do not convert to an ester when added to the resole resin.
Claims14
A catalyst system for improving the cure time of acid-catalyzed resole resins at higher ambient temperatures which comprises an inorganic acid and one or more polyhydric alcohols.
A method for preparation of the resole resin comprising the steps of:
- preparing a catalyst by mixing an inorganic acid and one or more polyhydric alcohols,
- mixing a resole resin with the catalyst.
Dependencies are inferred from the claim text.