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US 4,540,609 AGranted
Method for strengthening long chain synthetic polymer fibers
AssigneeHill & Dunn Networks, Inc.
InventorDennis B. Hill
Life of this patent
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Abstract
A method for strengthening long chain synthetic polymer fibers involves soaking a fibrous material in a treatment solution of potassium aluminum sulfate or ammonium aluminum sulfate, or both, in water. The treated material is immersed in a fixing solution containing a water soluble metallic carboxylate such as sodium or potassium stearate, and then rinsed with a nonreactive liquid.
Claims16
A method for strengthening a synthetic fibrous material comprising the steps of:
- soaking the material in an aqueous treatment solution of alum wherein the concentration of alum is from about 5 to 200 grams per liter of water;
- rinsing the treated material in an aqueous solution;
- and
- drying the treated material.
1 more element
A method for strengthening a synthetic fibrous material comprising the steps of:
- soaking the material in an aqueous treatment solution of alum, wherein the concentration of alum is above about 25 grams per liter of water;
- rinsing the treated material in an aqueous solution;
- and
- drying the treated material.
1 more element
Dependencies are inferred from the claim text.