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US 5,330,820 AGranted
Ballistic resistant composition article having improved matrix system
AssigneeAlliedSignal Inc.
InventorsHsin L. Li, Leroy C. Lin, Dusan C. Prevorsek, Hong B. Chin
Life of this patent
Estimating the term…
Abstract
An impact resistant rigid composite article comprising a fibrous layer comprising a network of filaments dispersed in a rigid matrix comprising one or more thermosetting resins and one or more thermoplastic resins.
Claims29
An impact resistant composite comprised of two or more layers;
- at least two of said layers being two adjacent fibrous layers each comprising a network of filaments having a tensile modulus of at least about 150 g/denier, an energy-to-break of at about 8 j/d and a tenacity equal to or greater than about 7 g/denier in a rigid matrix wherein said matrix comprises one or more thermosetting resins and one or more thermoplastic resins wherein the weight % ratio of thermosetting resins to thermoplastic resins based on solids content is selected such that
- peel strength between adjacent fibrous layers is at least about 3.0 lbs/in as determined by the peel resistance test of ASTM-D-1876-72.
Dependencies are inferred from the claim text.