US4110505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick bond composite and process
Assignee: RTX Corp
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Filing: 1976-12-17
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Granted: 1978-08-29
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Expires: 1996-12-17
Abstract
Abstract A tape of monolayer matrix for use in making up a multilayer matrix or composite which is bonded at a high temperature and pressure by pressing the composite between heated platens in air to cause densification, the tape consisting of collimated boron fibers bonded to a substrate aluminum foil with a resin binder.
Inventors
- 👤 Karl M. Prewo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/14; B32B15/02; B32B15/20; B32B7/00; B32B7/04; B32B7/12; C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/068; C22C47/20; B32B2311/00; B32B2311/24; B32B2313/00; B32B2313/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/249921; Y10T428/249924; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
93 words
In the manufacture in air of a composite having an aluminum matrix with a plurality of layers of filaments embedded therein, the steps of: forming a single layer of collimated parallel filaments, securing, to one side only of said layer, an aluminum foil substrate by a resin binder to form a tape, assembling a stack of these tapes to form a composite structure, and densifying and bonding said tapes to cause bonding between the aluminum foil substrates of adjacent tapes and simultaneously oxidizing and eliminating the binder by heating and pressing in air.
Claim 2
Dependent Claim
93 words
In the manufacture in air of a composite having an aluminum matrix with a plurality of layers of filaments embedded therein, the steps of: forming a single layer of collimated parallel filaments, securing, to one side only of said layer, an aluminum foil substrate by a resin binder to form a tape, assembling a stack of these tapes to form a composite structure, and densifying and bonding said tapes to cause bonding between the aluminum foil substrates of adjacent tapes and simultaneously oxidizing and eliminating the binder by heating and pressing in air.
Claim 3
Dependent Claim
18 words
The method of claim 1 in which the densification and bonding is accomplished by pressing between heated platens.
Claim 4
Dependent Claim
24 words
The method of claim 1 including the creation of a reducing atmosphere around the fibers by the heating of the resin binder during densifying.
Claim 5
Dependent Claim
96 words
In the manufacture in air of a composite having an aluminum matrix with filaments embedded therein, the steps of: forming a single layer of collimated parallel filaments, securing to one side only of said layer a single thickness aluminum foil substrate by a resin binder to form a tape, assembling a stack including at least one layer of said tape and a covering aluminum foil to form a composite structure, and densifying and bonding said foils together around the filaments and also oxidizing and eliminating the resin binder by heating and pressing the stack in air.
Claim 6
Dependent Claim
96 words
In the manufacture in air of a composite having an aluminum matrix with filaments embedded therein, the steps of: forming a single layer of collimated parallel filaments, securing to one side only of said layer a single thickness aluminum foil substrate by a resin binder to form a tape, assembling a stack including at least one layer of said tape and a covering aluminum foil to form a composite structure, and densifying and bonding said foils together around the filaments and also oxidizing and eliminating the resin binder by heating and pressing the stack in air.
Claim 7
Dependent Claim
124 words
A composite compacted in air comprising a plurality of tapes, each consisting of: a single sheet aluminum foil substrate, a collimated single layer of filaments on one side of said substrate, and a resin binder securing the filaments to the substrate, said plurality of tapes being stacked, one on another to form a stack consisting of alternate layers of foil with single layers of filaments therebetween, there being a single layer of foil between adjacent layers of filaments, said stack being heated and compacted in air, being heated to oxidize and eliminate the binder, and compacted to break up any carbonaceous remnants of the binder and to cause bonding of the adjacent foil layers to one another between the filaments to produce the composite.
Claim 8
Dependent Claim
124 words
A composite compacted in air comprising a plurality of tapes, each consisting of: a single sheet aluminum foil substrate, a collimated single layer of filaments on one side of said substrate, and a resin binder securing the filaments to the substrate, said plurality of tapes being stacked, one on another to form a stack consisting of alternate layers of foil with single layers of filaments therebetween, there being a single layer of foil between adjacent layers of filaments, said stack being heated and compacted in air, being heated to oxidize and eliminate the binder, and compacted to break up any carbonaceous remnants of the binder and to cause bonding of the adjacent foil layers to one another between the filaments to produce the composite.
Claim 9
Dependent Claim
25 words
A composite as in claim 5 in which the resin binder covers only a portion of the filaments and the surface of the substrate therebetween.
Claim 10
Dependent Claim
12 words
A composite as in claim 5 in which the filaments are boron.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |