Fine fibers made from room temperature crosslinking
AssigneeDonaldson Company, Inc.
InventorSuresh Laxman Shenoy
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Abstract
The present disclosure provides a unique method of making a fine fiber that is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure also provides a unique method of coating a fine fiber with a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure further provides fine fibers wherein the entirety of the fiber is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. Also provided are filter media and filter substrates including the fine fibers.
Claims20
A method of making a fiber, the method comprising:
- combining a polymer component, a solvent, and an epoxy to form a composition, the polymer component comprising a 4-vinyl pyridine-containing polymer and the epoxy being at least difunctional, wherein the solvent does not complex with 4-vinyl pyridine;
- spinning the composition to form a fiber such that the entirety the fiber is prepared from the composition;
- and
- causing the 4-vinyl pyridine-containing polymer and the epoxy in the fiber to crosslink under conditions having an ambient temperature of no greater than 40° C.
A method of making a coated fiber, the method comprising:
- combining a polymer component, a solvent, and an epoxy to form a composition, the polymer component comprising a 4-vinyl pyridine-containing polymer and the epoxy being at least difunctional, wherein the solvent does not complex with 4-vinyl pyridine;
- coating a core fiber with the composition;
- and
- causing the 4-vinyl pyridine-containing polymer and the epoxy on the fiber to crosslink under conditions having an ambient temperature of no greater than 40° C.
Dependencies are inferred from the claim text.