US5061545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber/polymer composite with nonuniformly distributed polymer matrix
Assignee: Honeywell International Inc
•
Filing: 1988-11-28
•
Granted: 1991-10-29
•
Expires: 2008-11-28
Abstract
Abstract The present invention is a composite comprising a fibrous web and a matrix composition nonuniformly distributed in the major plane of a fibrous web.
Inventors
- 👤 Hsin L. Li
- 👤 Gary A. Harpell
- 👤 Dusan C. Prevorsek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:17
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/504; D; D04; D04H; D04H1/00; B29C43/00; B29C43/22; B29C43/222; D04H1/40; D04H1/58; D04H1/64; F; F41; F41H; F41H5/00; F41H5/02; F41H5/023; F41H5/04; F41H5/0471; F41H5/0485; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24595; Y10T428/24603; Y10T428/24612; Y10T428/24802
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
28 words
A composite comprising at least one fibrous web comprising a network of unidirectional fibers; and a matrix composition nonuniformly distributed in the major plane of the fibrous web.
Claim 2
Dependent Claim
28 words
A composite comprising at least one fibrous web comprising a network of unidirectional fibers; and a matrix composition nonuniformly distributed in the major plane of the fibrous web.
Claim 3
Dependent Claim
20 words
The composite as recited in claim 1 wherein there is from 2 to 15 volume percent of the matrix composition.
Claim 4
Dependent Claim
20 words
The composite as recited in claim 2 wherein there is from 2 to 10 volume percent of the matrix composition.
Claim 5
Dependent Claim
20 words
The composite as recited in claim 3 wherein there is from 2 to 5 volume percent of the matrix composition.
Claim 6
Dependent Claim
70 words
A composite comprising at least one fibrous web, and from 2 to 15 volume percent of a polymeric composition nonuniformly distributed as a matrix for the fibrous web wherein distribution of polymer is in a pattern wherein there are areas of the composite which are thick areas having a greater polymer to fiber ratio than areas of the composite which are thin areas having a lower polymer to fiber ratio.
Claim 7
Dependent Claim
70 words
A composite comprising at least one fibrous web, and from 2 to 15 volume percent of a polymeric composition nonuniformly distributed as a matrix for the fibrous web wherein distribution of polymer is in a pattern wherein there are areas of the composite which are thick areas having a greater polymer to fiber ratio than areas of the composite which are thin areas having a lower polymer to fiber ratio.
Claim 8
Dependent Claim
20 words
The composite as recited in claim 5 wherein there is from 2 to 10 volume percent of the polymer composition.
Claim 9
Dependent Claim
20 words
The composite as recited in claim 6 wherein there is from 2 to 5 volume percent of the polymer composition.
Claim 10
Dependent Claim
32 words
The composite as recited in claim 5 wherein the polymer to fiber ratio in the thick areas is at least 1.5 times the ratio of polymer to fiber in the thin areas.
Claim 11
Dependent Claim
14 words
The composite as recited in claim 5 wherein the thick areas are continuous areas.
Claim 12
Dependent Claim
13 words
The composite as recited in claim 5 wherein the thin areas are discontinuous.
Claim 13
Dependent Claim
31 words
The composite as recited in claim 5 wherein the thin areas are impressions from about 0.005 to 0.10 inches deep and having an area of from 0.03 inches to 100 inches.
Claim 14
Dependent Claim
26 words
The composite as recited in claim 11 wherein the impression occupy from 10 to 90% of the area of at least one side of the web.
Claim 15
Dependent Claim
21 words
The composite as recited in claim 11 wherein the impressions are circles having a diameter of from 0.2 to 4 inches.
Claim 16
Dependent Claim
58 words
A composite comprising at least one fibrous web; and a matrix composition non-uniformly distributed in the major plane of the fibrous web, the composite having 93 to 98 percent by volume of fiber and having greater resistance to steel flechettes when tested according to Mil-Spec MIL-P 46593A(ORD) than a composite having a lower percent by volume of fiber.
Claim 17
Dependent Claim
58 words
A composite comprising at least one fibrous web; and a matrix composition non-uniformly distributed in the major plane of the fibrous web, the composite having 93 to 98 percent by volume of fiber and having greater resistance to steel flechettes when tested according to Mil-Spec MIL-P 46593A(ORD) than a composite having a lower percent by volume of fiber.
Claim 18
Dependent Claim
15 words
The composite of claim 14 wherein the fibrous web comprises a network of unidirectional fibers.
Claim 19
Dependent Claim
37 words
The composite of claim 15 wherein the composite comprises a plurality of layers wherein each layer comprising fibers having a tensile modulus of at least about 160 g/denier and a tenacity of at least about 7 g/deniers.
Claim 20
Dependent Claim
10 words
The composite of claim 16 having 10 to 75 layers.
References Cited (Backward Citations)
US2593207A
Cited
US4761322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-28 | 1995-04-29 | 1995-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-28 | 1999-04-29 | 1999-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-28 | 2003-04-29 | 2003-10-29 | $7700.00 | Window Closed / Lapsed |