Coated fiber and method
AssigneeBASF SE
InventorsCharles O. Kerobo, John Andrew Randolph, Dennis Frederick Berry
Life of this patent
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Abstract
A coated fiber for polymer reinforcement is disclosed. The coated fiber comprises a fiber and a coating disposed about said fiber. The fiber has a denier of from about 250 to about 3,000. The coating comprises a branched polyethylene imine. The fiber is present in the coated fiber in an amount of from about 80 to about 99.8 percent by weight and the coating is present in the coated fiber in an amount of from about 0.2 to about 20 percent by weight, with percent by weight based on the total weight of the coated fiber. A method of producing the coated fiber is also disclosed.
Claims25
A coated fiber for polymer reinforcement, said coated fiber comprising:
- A. a fiber having denier of from about 250 to about 3,000 and present in an amount of from about 80 to about 99.8 percent by weight based on the total weight of said coated fiber;
- and
- B. a coating disposed on said fiber and comprising a branched polyethylene imine and present in an amount of from about 0.2 to about 20 percent by weight based on the total weight of said coated fiber,
- wherein said branched polyethylene imine has a degree of branching of from about 0.30 to about 0.85 as determined via 13C-NMR in D2O.
A method of producing a coated fiber, said method comprising:
- providing a fiber;
- providing a coating composition comprising a branched polyethylene imine having a degree of branching of from about 0.30 to about 0.85 as determined via 13C-NMR in D2O;
- and
- applying the coating composition to the fiber to form the coated fiber,
- wherein the fiber has a denier of from about 250 to about 3,000 and present in an amount of form about 80 to about 99.8 percent by weight based on the total weight of said coated fiber;
- and
- wherein the coating composition disposed on the fiber is present in an amount to from about 0.2 to about 20 percent by weight based on the total weight of said coated fiber.
A coated fiber for polymer reinforcement, said coated fiber comprising:
- A. a fiber having denier of from about 250 to about 3,000 and present in an amount of from about 80 to about 99.8 percent by weight based on the total weight of said coated fiber;
- and
- B. a coating disposed on said fiber and comprising a branched polyethylene imine and present in an amount of from about 0.2 to about 20 percent by weight based on the total weight of said coated fiber,
- wherein said branched polyethylene imine comprises from about 30 to about 45 percent linear groups, from about 20 to about 30 dendric groups, and from about 30 to about 45 percent terminal groups, based on 100 percent of all groups present in said branched polyethylene imine as determined via 13C-NMR in D2O.
A coated fiber for polymer reinforcement, said coated fiber comprising:
- A. a fiber having denier of from about 250 to about 3,000 and present in an amount of from about 80 to about 99.8 percent by weight based on the total weight of said coated fiber;
- and
- B. a coating disposed on said fiber and comprising a branched polyethylene imine and present in an amount of from about 0.2 to about 20 percent by weight based on the total weight of said coated fiber,
- wherein the coated fiber has a length of from about 0.3 to about 25 mm.
Dependencies are inferred from the claim text.