Self-repairing, reinforced matrix materials

Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing

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106676, 106711, 106724, 106729, 106819, 106823, 106802, 106805, 501 95, 588 3, 588252, 588901, 75300, 4283202, 4283211, 4283215, 428364, 428375, C04B 1438, C04B 1606, B32B 326

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056606249

ABSTRACT:
Self-repairing, fiber reinforced matrix materials include a matrix material including inorganic as well as organic matrices. Disposed within the matrix are hollow fibers having a selectively releasable modifying agent contained therein. The hollow fibers may be inorganic or organic and of any desired length, wall thickness or cross-sectional configuration. The modifying agent is selected from materials capable of beneficially modifying the matrix fiber composite after curing. The modifying agents are selectively released into the surrounding matrix in use in response to a predetermined stimulus be it internal or externally applied. The hollow fibers may be closed off or even coated to provide a way to keep the modifying agent in the fibers until the appropriate time for selective release occurs. Self-repair, smart fiber matrix composite materials capable of repairing microcracks, releasing corrosion inhibitors or permeability modifiers are described as preferred embodiments in concrete and polymer based shaped articles.

REFERENCES:
patent: 4587279 (1986-05-01), Salyer et al.
Time Magazine, Apr. 8, 1966 "Capsule Solution for Countess Problems", p. 70.
Kosmatka et al., "Design and Control of Concrete Mixtures", Thirteenth Edition, pp. 64-65, 1988 (no month).
Geishauser et al., "A Study of the Heat Treating Cycle for Internally Sealed Concrete Containing Montan-Paraffin Wax Beads.", 1977 (no month).
Kistler et al., "Internal Sealing of Concrete With Degradable Polymer Beads", Aug. 1983.
Vigo et al., "Temperature Adaptable Hollow Fibers Containing Polyethylene Glycols", Apr. 1973.

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