Composite and article using short length fibers at oblique angle

Details Composite and article using short length fibers at oblique angle Composite and article using short length fibers at oblique angle

1987-08-03

1989-11-28

Kendell, Lorraine T.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

2 5, 2 6, 2410, 2411, 2412, 428189, 428190, 428224, 428226, 428232, 428246, 428253, 428254, 428284, 428286, 428293, 428294, 428297, 428298, 428302, 428902, 428911, 428112, B32B 512

Patent

active

048837008

ABSTRACT:
The present invention is an improved prepreg layer, multilayer composition based on the improved prepreg layer, and article made from the multilayer composite.
The prepreg layer of the present invention comprises an array of at least one adjacent, coplanar fibrous element. Each element has a longitudinal axis and each element comprises a plurality of unidirectional coplanar fibers embedded in a polymeric matrix. The fibers are at an oblique angle to the longitudinal axis of the element. The fibers are up to eight inches, preferably from one to eight inches, and more preferably two to six inches long. The adjacent elements are connected by the polymer matrix. Typically, the elements are in strip or sheet form with the longitudinal axis corresponding to long dimension of the strip or sheet. Alternately, the prepreg layer can be a fabric layer, where the fibers are woven or knit and the fibers are at an oblique angle to the longitudinal axis.
The present invention includes a multilayer composite comprising a plurality of the prepreg layers where each prepreg layer comprises an array of at least one coplanar, and alternately at least two adjacent coplanar fibrous elements.

REFERENCES:
patent: 3865677 (1975-02-01), Marzocchi et al.
patent: 4255478 (1981-03-01), Crane
patent: 4309487 (1982-01-01), Holmes
patent: 4403012 (1983-09-01), Harpell et al.
patent: 4457985 (1984-07-01), Harpell et al.
patent: 4501856 (1985-02-01), Harpell et al.
patent: 4543286 (1985-09-01), Harpell et al.
patent: 4584347 (1986-04-01), Harpell et al.
patent: 4606961 (1986-08-01), Munsen et al.
patent: 4613535 (1986-09-01), Harpell et al.
patent: 4622254 (1986-11-01), Nishimura et al.
patent: 4623574 (1986-11-01), Harpell et al.
patent: 4650710 (1987-03-01), Harpell et al.
patent: 4663101 (1987-05-01), Kavesh et al.
patent: 4681792 (1987-07-01), Harpell et al.
patent: 4737401 (1988-04-01), Harpell et al.
patent: 4737402 (1988-04-01), Harpell et al.
Sers. No. 808,861; 825,039; 766,727; 081,260; 081,075; 081,074.
John V. E. Hansen and Roy C. Liable, Flexible Body Armor Materials, Fiber Frontiers ACS Conference, Jun. 10-12, 1974.
NTIS Publication ADA018 958, New Materials in Construction for Improved Helmets, A. L. Alesi, et al.
M. R. Lilyquist et al., J. Marcomol Sci. Cheme., A7 (1), 203, et seq., (1973).
Williams et al., The Impact Strength of Fibre Composites, Journal of Materials Science, vol. 8, pp. 1765-1787, (1973).
Alesi, Aramid Fiber-Reinforced Ionomer, Polymer Engineering and Science, vol. 18, No. 16, pp. 1209-1215, (Dec., 1978).
Silverman, effect of Glass Fibre Length on the Creep and Impact Resistance of Reinforced Thermoplastics, Polymer Composites.
Roylance et al., Ballistic Impact of Textile Structures, Textile Research Journal, pp. 34-41, (Jan., 1973).
Roylance, Influence to Fibre Properties of Ballistic Penetration of Textile Panels, Fibre Science & Technology, vol. 14, pp. 183-190, (1981).
Liable, Ballistic Materials and Penetration Mechanics, Elsevier Scientific Publishing Co., Chap. 4, (1980).
Roy C. Liable et al., J. Macromel, Sci. Chem., A7 (1), pp. 295-322, 1973.

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