Composite reinforcement systems and methods of manufacturing the same
AssigneeCsc Operating Company, LLC
InventorsChristopher J. Lazzara, Richard J. Lazzara, Venkatachala S. Minnikanti, Christopher R. Fenoli, Davie Peguero
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Abstract
Systems and methods for reinforcing physical structures with composite reinforcement systems are disclosed herein. According to aspects of the present disclosure, a composite reinforcement system includes a carrier formed of a plurality of fibers and a blend of at least two reagents impregnated within the carrier. The at least two reagents are chemically configured to react to form a moisture-curable prepolymer. One reagent of the at least two reagents is an isocyanate, and another reagent of the at least two reagents is an aromatic-group-containing polyol.
Claims16
A composite reinforcement system comprising:
- a carrier made of a plurality of fibers;
- and
- a moisture-curable prepolymer impregnating the carrier in a partially cured state, the moisture-curable prepolymer formed of at least a polyfunctional aliphatic isocyanate and an aromatic-group-containing polyol as the only polyol;
- wherein the polyfunctional aliphatic isocyanate is an isocyanurate-based polyfunctional isocyanate with an isocyanate functionality of greater than two,
- the carrier is a fabric or includes unidirectional fiber layers therein,
- the aromatic-group-containing polyol is based on a polymer selected from polyester, polyamide, polyurethane, polyurea, and a combination thereof and has aromatic groups in its backbone,
- wherein the polyfunctional aliphatic isocyanate includes about 50 wt. % to 90 wt. % of the moisture-curable prepolymer, and the aromatic-group-containing polyol constitutes about 10 wt. % to 50 wt. % of the moisture-curable prepolymer, and
- wherein the composite reinforcement system is packed in a moisture-tight enclosure.
A composite reinforcement system comprising:
- a carrier and a resin, the carrier saturated with the resin, the resin including a prepolymer formed of at least a polyfunctional aliphatic isocyanate and an aromatic-group-containing polyol as the only polyol and being chemically configured to harden upon exposure to moisture,
- wherein the polyfunctional aliphatic isocyanate is an isocyanurate-based polyfunctional isocyanate with an isocyanate functionality of greater than two,
- the carrier is a fabric or includes unidirectional fiber layers therein, and
- the aromatic-group-containing polyol is based on a polymer selected from polyester, polyamide, polyurethane, polyurea, and a combination thereof and has aromatic groups in its backbone,
- wherein the polyfunctional aliphatic isocyanate constitutes about 50 wt. % to 90 wt. % of the moisture-curable prepolymer, and the aromatic-group-containing polyol constitutes about 10 wt. % to 50 wt. % of the moisture-curable prepolymer, and
- wherein the composite reinforcement system is stored in a moisture-tight enclosure.
Dependencies are inferred from the claim text.