CA1247347A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Process for the preparation of fiber reinforced flat bodies
Assignee: Individual
•
Filing: 1983-01-28
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Granted: 1988-12-28
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Expires: 2003-01-28
Abstract
Abstract ABSTRACT A process for the production of fiber reinforced flat bodies is described, wherein a water containing, flowable core layer is introduced between a substrate layer and a cover layer to form a three layer composite body with its own internal co-hesion wherein at least one of the outer layers comprises actively needle bondable fibers which are bonded together by needling so that the layers remain together in a deformable state; the water containing, flowable core layers may consist of mud masses, paper strips or shreds soaked in water to which glue may be added, but also of a raw ceramic mass, which is not only rein-forced by needling, but is simpler to manipulate.
Inventors
- 👤 Gunter H. Tesch
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 19:47
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; B; B28; B28B; B28B19/00; B28B19/0092; D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/498; D04H13/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
78 words
A process for the production of fiber reinforced, flat bodies, comprising the steps of introducing a water containing flowable core as a layer between an outer substrate layer and an outer cover layer to form a three layer composite of which at least one of the outer layers comprises actively needle bondable fibers, and needle-bonding the three layer composite while said core is in the water containing state, so that the layers have coherence in a deformable condition.
Claim 2
Dependent Claim
78 words
A process for the production of fiber reinforced, flat bodies, comprising the steps of introducing a water containing flowable core as a layer between an outer substrate layer and an outer cover layer to form a three layer composite of which at least one of the outer layers comprises actively needle bondable fibers, and needle-bonding the three layer composite while said core is in the water containing state, so that the layers have coherence in a deformable condition.
Claim 3
Dependent Claim
26 words
A process according to claim 1, wherein the layers are needle bonded by means of holding fibers taken from the cover layer and the substrate layer.
Claim 4
Dependent Claim
29 words
A process according to claim 1, wherein the holding fibers are inserted at an angle of less than 90° with respect to the place of extension of the body.
Claim 5
Dependent Claim
29 words
A process according to claim 2, wherein the holding fibers are inserted at an angle of less than 90° with respect to the plane of extension of the body.
Claim 6
Dependent Claim
35 words
A process according to claim 4, wherein the holding fibers are inserted both from the cover layer and from the substrate layer and they are aligned in a twisted manner with respect to each other.
Claim 7
Dependent Claim
21 words
A process according to claim 1, including the step of forming orifices in said needle bonded composite body when still wet.
Claim 8
Dependent Claim
11 words
A process according to claim 6, wherein the orifices are slits.
Claim 9
Dependent Claim
37 words
A process according to claim 7, wherein a plurality of slits are formed and arranged in rows which are parallel to each other, with the slits of adjacent rows being arranged offset with respect to each other.
Claim 10
Dependent Claim
28 words
A process according to claim 1, including the step of deforming the composite body, while still wet and lying essentially flat is a plane, out of said plane.
Claim 11
Dependent Claim
21 words
A process according to claim 9, wherein the composite body is deformed by deep drawing in a die while still wet.
Claim 12
Dependent Claim
17 words
A process according to claim 1, including the step of pressing the composite body while still wet.
Claim 13
Dependent Claim
17 words
A process according to claim 1, wherein two composite bodies are needle bonded together while still wet.
Claim 14
Dependent Claim
18 words
A process according to claim 1, wherein at least one composite body is needle bonded flat to another.
Claim 15
Dependent Claim
18 words
A process according to claim 1, including the step of drying composite body by the application of heat.
Claim 16
Dependent Claim
20 words
A process according to claim 1, wherein one of the outer layers consists of a sheet of a synthetic plastic.
Claim 17
Dependent Claim
16 words
A process according to claim 15, wherein the core layer comprises a medicinal, natural healing mass.
Claim 18
Dependent Claim
43 words
A process according to claim 16, including the steps of dividing the composite body present after needle bonding in the form of a web, into individual flat units representing a therapeutical pack, and packaged such units in an air and water tight manner.
Claim 19
Dependent Claim
14 words
A process according to claim lo the core layer comprises paper soaked in water.
Claim 20
Dependent Claim
20 words
A process according to claim 18, including the step of adding to the water prior to soaking said shredded paper.
Claim 21
Dependent Claim
24 words
A process according to claim 18, including the step of embossing planar composite body on at least one of its surfaces while still wet.
Claim 22
Dependent Claim
15 words
A process according to claim 1, the core layer comprises a wet, raw ceramic mass.
Claim 23
Dependent Claim
23 words
A process according to claim 21, including the step of wetting the composite body into parts of a desired configuration, while still wet.
Claim 24
Dependent Claim
18 words
A process according to claim 22, including the step of deforming the cut parts of the composite body.
Claim 25
Dependent Claim
28 words
A process according to claim 22, wherein said cut parts are in the form of strips and including the step of winding said strips in a helical manner.
Claim 26
Dependent Claim
16 words
A process according to claim 21, including the steps of drying and baking the composite body.
Claim 27
Dependent Claim
23 words
A process according to claim 14, including the steps of shaping or pressing the wet composite body and thereafter drying said composite body.
Claim 28
Dependent Claim
16 words
A process according to claim 22, wherein the cut parts comprise strips, circular shapes or patterns.
References Cited (Backward Citations)
No citation records indexed.
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