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US 4,085,076 AGranted
Carbohydrate-based condensation resin
AssigneeCPC International Inc.
InventorsJohn P. Gibbons, Lawrence Wondolowski
Life of this patent
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Abstract
A carbohydrate-phenolic resol resin and a process for production of same wherein an aldose saccharide, preferably a hexose, is reacted with a phenolic compound and urea in the presence of an acid catalyst to form a liquid fusible resin which is reacted with a lower aliphatic aldehyde in the presence of a basic catalyst to form said resol resin.
Claims12
A process for producing a carbohydrate-phenolic resol resin which comprises the steps of:
- a. reacting in the presence of an acid catalyst the following ingredients:
- 1. an aldose saccharide
- 2. a phenolic compound having the formula ##STR7## wherein R is selected from the group consisting of C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy, halogen, hydroxy and hydrogen, and
- 3. urea to form a liquid resin wherein the water produced in condensation is less than about 5 moles per mole of aldose;
- and
- b. reacting said liquid resin with a lower aliphatic aldehyde in the presence of a basic catalyst to form said resol resin.
3 more elements
Dependencies are inferred from the claim text.