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US 9,574,119 B2Granted
Method of producing creping adhesive
AssigneeNalco Company
InventorsGary S. Furman, Jr., Mingli Wei, Christopher D. Kaley, David J. Castro, Vladimir A. Grigoriev
Life of this patent
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Abstract
This invention is method of producing a creping cylinder adhesive comprising: contacting a dry form PVOH with a liquid form PVA at a temperature of less than 80° C., maintaining the PVOH and PVA at a temperature of between 90-95° C. until the PVOH is completely dissolved into a medium, and allowing the medium to cool to below 80° C.
Claims16
A method of preparing a composition of matter, the method comprising the steps of:
- contacting a dry form polyvinyl alcohol (PVOH) with a liquid form vinylamine/N-vinyl formamide copolymer (PVA) at a temperature of less than 80° C.,
- raising the temperature of the PVOH and PVA to a temperature ranging from 90° C. to 95° C. and maintaining this temperature until the PVOH is completely dissolved into a medium, and
- cooling the medium to below 80° C.
Dependencies are inferred from the claim text.