WO1995029059A1

WO1995029059A1 - Terry-cloth fabric panels

Info

Publication number: WO1995029059A1
Application number: PCT/EP1995/000505
Authority: WO
Inventors: Wolfgang Böttger
Original assignee: Vorwerk & Co. Interholding Gmbh
Priority date: 1994-04-22
Filing date: 1995-02-13
Publication date: 1995-11-02
Also published as: EP0756541A1; CA2188401A1; AU1756795A; DE4414150A1

Abstract

The invention relates to a panel-like component (1) with a first and a second outer layer (2, 3) and an intermediate, preferably foam, layer (4), in which the first and second layers (2, 3) are based on a textile material. In order to obtain the lightest possible panel-like component having a central layer of freely foamed synthetic resin, especially or the open-pore type with the lowest possible likelihood of separation, the invention proposes that the first and/or second layer (2, 3) consist of a cured resinated fabric forming projecting extensions (5) facing the opposite layer (2 or 3) and causing the layers (2, 3, 4) to adhere together by projecting into the intermediate layer (4).

Description

0000 1 terry cloth sheets 00002

00003 The invention initially relates to a plate-like construction

00004 part, with a first and second layer and an intermediate

00005 see arranged, preferably made of a foam

00006 formed intermediate layer, the first and the second

00007 layer are formed on the basis of a textile material. On

Such a plate-like component is, for example, from DE-OS

00009 21 38 705 known. In this known component, the

00010 outer layers formed from composite films. Such a

Ches component is particularly in terms of its

00012 delamination properties still in need of improvement

Viewed 00013 times. 00014

The state of the art is still on the US PS

00016 4,888,228. From this publication is a

00017 total hardened resinous component known that

00018 solid resinous plate-like, whereby

00019 fabric layers are provided, which by drawn

00020 threads in the resinous material loops

Form 00021 or free-standing ends. The loops or

00022 free-standing ends of the fabric layers are in with each other

00023 coverage. Another state of the art is by

00024 the registered documents of DE-GM 90 07 289

00025 det. Here, too, is comparable to the

00026 th US patent provided a fabric layer which

00027 freely protruding knobs or cut threads and which fabric layer then, in conjunction with others

00029 such fabric layers, overall in the sense of a

00030 training with a matrix plastic

00031 is soaked. 00032

In view of the prior art described above

00034 technology, the technical problem of the invention

00035 fertilizer seen in it, a lightweight panel Specify 00036-like component that a middle layer

00037 free-foamed synthetic resin, in particular open-pore

00038 foamed synthetic resin, and the one if possible

00039 has a low tendency to delamination. 00040

00041 This technical problem is first and foremost

Resolved in the subject matter of claim 1, 00043 being based on the fact that the first and / or second

00044 position of the plate-like component from a cured

00045 resinous tissue is formed, which tissue free

00046 forming extensions and further these extensions

00047 facing the opposite layer and by a

00048 protruding into the intermediate layer formed from foam

00049 ge an arrest of the layers is effected.

In contrast to the cited prior art

00051 the plate-like component according to the invention not through

00052 total impregnation (or foaming) with a single

00053 foam material formed, rather the outer

00054 layers covering the top layers of the plate-like building

00055 form part, for themselves hardened resin-coated plate

00056 term elements with the mentioned extensions, which then

00057 by foaming another foam between

00058 the layers with each other, by means of

00059 foam formed intermediate layer, to a highly

00060 bilen lightweight surface component are connected.

00061 The liner does not necessarily have to be from one

00062 foam consist. You can also from another

00063 consist of substance that is, for example, first liquid and then

00064 hardened, i.e. from a resin. However, it is essential

00065 borrowed that the first and second layers initially for themselves

00066 hardened resinous fabrics, so that it is just for

00067 formation of the extensions or their automatic high

00068 places is coming. The fabric also preferably has looped

00069-like extensions. A terrycloth is particularly suitable

00070-like fabric. It is also preferred that the fabric 00071 from a technical yarn such as carbon fiber, aramid

00072 fiber, ceramic fiber or in particular glass fiber.

The foam is preferably made of a foamable

00074 resin formed. For this, z. B polyurethane,

00075 epoxy, phenol and polyester based resins. In particular

00076 those that foam open-pore. The arrest of the

00077 layers with each other is so effective in the product according to the invention that in a delamination attempt

00079 a tear occurs in the foam, but not immediately

00080 bar between the fabric layer and the foam. For this

It is also preferred that the extensions have a certain

Have effective free length. This is preferred in

00083 range from 1 to 10 mm can be seen. 00084

The invention also relates to a terry cloth

00086-like fabric made from a technical yarn such as carbon

00087 lenstoffaser, aramid fiber, ceramic fiber and in particular

00088 consists of glass fiber and free through hardening resinification

Has protruding, hardened loops. At a

00090, for example, made of glass fibers with terry cloth

00091 the slings in question on the top (where

00092 the loops can also be made on both sides)

00093 has surprisingly been found that these harden when

00094 the resinification automatically changes into a spacing position,

00095 so that they are essentially vertical or only with

00096 low angle of inclination to a plane in which

00097 extends the base of the fabric. On

00098 such cured terry cloth is also

00099 can be used in a variety of ways. That's the way it is

00100 is particularly flexible and at the same time has due to

00101 of the protruding loop structures integrated spacers

00102 ter. This can be the case, for example, with a curved component

00103 spacer - forming a flowable,

00104, for example, air-flowable space - to a second

00105 location be exploited. The hardened resinified in speech 00106 standing fabric is still surprisingly flexible. It

00107 can therefore also be used for sheathing especially on tubular

00108 objects can be used. It can be done by means of a

00109 adhesive / resin on the outer tube wall then in the

00110 wrapped form to be arrested. You can also go to one

00111 think overlapping wrapping, whereby the gluing /

00112 liability immediately resinated on the back of the

00113 cured fabric is made. Significant

00114 is already the use of a terry cloth

00115 fabric, in particular based on a technical yarn,

00116 for forming a component by hardening resin

00117 ung. In a further embodiment it is also provided that

00118 the fabric, as far as it is not based on an electrical

00119 or practically non-conductive base material is formed

00120, has individual threads that are electrically conductive

00121, such a single thread also being a slack

00122 ge or loop forms. E.g. can the fabric out

00123 glass fiber exist as a base material. As electric

00124 conductive thread can then be drawn in a carbon thread

00125 gen, which is also a loop or noose

00126 trains. Then in a practical embodiment

00127 distributed over a fabric surface at regular intervals

00128 pulled such a conductive thread. In this

00129 connection is also made to W092 / 17661

00130 which it already has for a two-layer spacer fabric

00131 is known, a floating between the layers

00132 pulling conductive thread into a base fabric. at

00133 a tissue of the type in question changes here

00134 conductive thread but not between two layers of one

00135 double-layer fabric, but runs in the base fabric

00136 be and at least partially in the formed therefrom

00137 fen. The conductive thread can then also have certain

Skip 00138 fen. It can be in the grid of the base fabric

00139 as it were an intermediate loop made of conductive fiber

00140 have moved in. The invention also relates to a component based on

00142 of a hardened resinous loop fabric, in particular 00143 a terry-like fabric, two fabric

00144 lay with the loops facing each other

00145 are connected by the resinification. By resinification

00146 unhardened loops form the spacing elements. A filling of the free space then remaining between the 00148 base fabric layers is indeed

00149 possible, in many applications, for example when the intermediate

00150 space can be used for leakage monitoring

00151 is not required (see EP WO / 92/17661) or not

00152 desired. The component is characterized by thin, essentially

00153 loaned resin-coated basic fabric layers marked

00154 net, of which facing inwards, towards each other,

00155 loop-like, essentially circular

00156 de in a large variety. Due to the

00157 resinification, which both layers of fabric at the same time

00158, a high-strength component is

00159 create. On the one hand, the loop-like

00160 structures may be provided so that they

00161, as it were, abut each other on the head side. Furthermore

00162 it is possible, however, by pressing these into each other

00163 fabric layers - especially if these previously for themselves

00164 already hardened in a first step

00165 are - in a second step to enforce

00166 of the loop-like structures to come and again

00167 with resin to each other in this interspersed position

00168 connect, resulting in an even more compact and

00169 stronger component results. 00170

00171 Regarding the loop fabric described, that too

00172 can be called loop fabric, it is

00173 significantly that the loops or loops integral in

00174 are generated in the course of the web process. You belong

00175 formed to the fabric structure. 00176 The invention also relates to an object such as

00177, for example, a tank, a plate part, a tube or the like, with 00178 an outer clothing, cover or casing, wherein

00179 on a surface of the object first a loading

00180 layering is applied, for example, from a resin material

00181 and on the coating a spacer with

00182 closed top layer with cantilevered extensions

00183 rests in such a way that between the surface and the

00184 cantilevered extensions remain a cavity. In

00185 relates to EP-B 169 303, for example

00186 reference. The well-known lining is still relative

00187 elaborately designed. The invention beats in this

00188 context before that the extensions loop or

00189 are loop-shaped and are coated by the

00190 are arrested with the subject. The coating

00191 can thus be, for example, an epoxy resin layer or the like.

00192 The spacer with the loop or loop

00193 term extensions is in the still soft epoxy resin

00194 layer pressed in and hardened by the epoxy

00195 resin layer achieved the desired adhesion. In another

00196 embodiment can also be provided that the continuation

00197 ze positively embedded in the coating

00198 tet. Since the extensions loop or loop

00199 tig, the coating can have the free cross section

00200 of the loop - preferably partially - and so on

00201 the sling or loop is at least partially

Wrap 00202 dig. A special design also sees

00203 that the coating is set to be conductive.

00204 especially in combination with a spacer,

00205 which is itself conductive, for example a fabric made of glass fiber

00206 sern with conductive threads, as described above

00207 has been made possible, a lining and

00208 early monitoring of tanks, for example, by

00209 the conductivity of both the coating and the

00210 spacer element also the required explosion protection 00211 security is given. In this context, the

00212 WO 92/17661, from which a different type

00213 Lining for a tank, with a monitorability

00214 of the cavity created and a conductive setting

00215 tion of the spacer is already known. 00216

00217 Below, the invention is further illustrated by the

00218 th drawing, but only as an example, explained.

00219 shows: 00220

00221 Fig. 1 shows a cross section through a plate-like

00222 component, formed from two opposite

00223 arranged hardened resin-coated loops

00224 fabric panels and a foam of the intermediate

00225 bedroom; 00226

00227 Fig. 2 is a perspective view of a cured

00228 resinous loop fabric; 00229

00230 Fig. 3 shows a cross section through a component

00231 from two immediately with their loops

00232 cured arranged mutually

00233 resinous loop fabric plates; 00234

00235 Fig. 4 shows a cross section through a loop fabric in

00236 hardened resinous form, the bilateral

00237 has loops; 00238

00239 Fig. 5 shows a cross section through the object

00240 according to FIG. 2, cut along the line

00241 V-V; 00242

6 shows a sectional illustration of a section

00244 tissue plate, as shown in Fig. 2

00245, as a spacer on a wall part; 7 shows a section through the object according to FIG

00247 Fig. 6, cut along the line VII-VII. 00248

00249 Shown and described is initially with reference to

00250 Fig. 1 shows a cross section through a component 1, the one

00251 has a sandwich-like structure. The lowest layer is 2

00252 arranged a hardened resin loop fabric

00253 and as the top layer 3 an equally hardened

00254 resinous loop fabric. The gap is through

00255 free-foaming, open-pore when solidified

00256 foam, which thus forms an intermediate layer 4,

00257 fills. It is a rigid foam. There-

00258 that the foam of the intermediate layer 4 cantilever

00259 en extensions of layers 2, 3, namely loops 5,

00260 completely surrounds and penetrates into it

00261 overall a very intensive arrest of the intermediate

00262 ge 4 reached with the fabric plates of layers 2 and 3.

00263 A delamination of a tissue plate from the foam

00264 of the intermediate layer 4 cannot occur. With a tear

00265 attempt is rather to find that a tear in the loading

00266 rich of free foam, beyond the loops

00267 5, occurs. The description of the components below

00268 according to FIGS. 2 to 5 is hardened with regard to

00269 resinous loop fabric of layers 2 and 3 of the construction

00270 partly 1 in the same way of importance. In particular

00271 can also be the loop fabric of layers 2 and / or 3

00272 be such according to FIG. 4. 00273

00274 In Fig. 2, a fabric plate 2 or 3 is cured

00275 resinous form shown in perspective.

00276 A large number of loops 5 can be seen. The

00277 fabric that is terry-like or a usual terry cloth

00278 webe ist is made on the basis of glass fibers. The

00279 after weaving flat or only slightly protruding

00280 adjusting loops are sufficient 00281 impregnation, for example also spraying the tissue with a

00282 resin, for example. An epoxy resin, stiffened so that it from

00283 Hand, for example, not compressible or foldable

00284 are. In the same way there is an excess resinification

00285 with a subsequent squeeze except for a

00286 desired resin content possible. The distance shown

00287 the loops would be due to the resinification

00288 automatically. 00289

00290 The representation of FIG. 2 shows schematically resinification

00291 accumulations 6 on the base areas of the loops 5

00292 shown. Resinifications 7, which between

00293 see loops 5 lying next to one another at their contact

00294 point can set itself. The loops 5 and

00295 the underlying glass fiber fabric also shows in the

00296 Rule up a shell-like overall coating of resin that

00297 to the integral stiffness of a loop 5 in

00298 leads the way described. The resinifications 7 are

00299 also depending on the diameter of the loops

00300 is adjustable. A height or free length 1 of the hose

00301 fen 5 can also basically be

00302 can be set. In practical terms, such a

00303 before length 1 from 1 to 10 mm as essential

00304 represents. 00305

00306 It can also be seen that the loops are helical

00307 cut inconsistent, i.e. a first foot 8 in one

00308 depth direction t of the plate offset to a second

00309 foot 9 is arranged. 00310

00311 The lower plate 10 is due to the hardening resin

00312 the base fabric layer from which the loops are made

00313 project. The plate 10 is usually

00314 liquid-tight. Depending on the resin used, this can 00315 component of FIG. 2 overall also translucent

00316 forms his. 00317

00318 FIGS. 3 to 5 represent cross sections through different

00319-like configurations of a component based on

00320 represents a basic element as shown in FIG. 2. 00321

00322 Here, FIG. 5 shows a front view in the direction of the

00323 arrow V in FIG. 2 of the component according to FIG. 2. 00324

00325 FIG. 3 shows a cross section through a component,

00326 that by stacking two components according to the

00327 shown in Fig. 2 and 5 is reached. The attitudes

00328 other is made such that the loops on

00329 lie on top of each other. It is obvious

00330 lent that through the resinification process

00331 Harzbrücken 11, 12 between opposite loops

00332 5, 5 'and 5' 'form. Due to the helical shape

00333 design of the loops, it is also possible, in particular

00334 if there is a certain displacement of the layers

00335 is taken that an upper loop 5 'over (side)

00336 resin bridges with two further loops 5 of the lower one

00337 location is arrested. 00338

The cross section according to FIG. 5 shows a component, formed

00340 from a terry cloth or terry cloth fabric that

00341 hardens resinified, with both sides of the terry cloth

00342 tig loops are formed here on both sides

00343 rigid loop structures 5 lead. 00344

00345 A component 1, as shown in Fig. 1, is

00346 manufactured in that first for layers 2 and 3,

00347 either in a continuous process or immediately as a plate

00348 elements, corresponding fabrics, in particular terry

00349 tea-like tissue, hardened resinified, then 00350 these layers 2, 3 arranged opposite one another in a form

00351 net and a free-foaming resin on the

00352 lower layer 2 is applied. Then in the form

00353 the desired distance between layers 2 and 3

00354 and the free-foaming resin fills the intermediate

00355 space so that it forms the intermediate layer 4

00356 is coming. The freely foaming resin penetrates

00357 also in the area of the loops 5, below

00358 enforcement of the gaps between and in the

00359 slings 5. This is ultimately essential

00360 achieved an integral positive connection between the

00361 intermediate layer 4 and the upper and lower layers 2, 3. (Es

00362 is of course also possible, the component only with one

00363 Layer 2 and a resin layer thereon, which to

00364 a foam layer is to be formed.)

00365 set to the known plate components is a

00366 Exercise between layers 2, 3 and the intermediate layer 4

00367 not necessary and also with simple means

00368 positionally not possible. 00369

00370 The base fabric layers, for example to the plate 10

00371 component according to FIG. 2 can also be multi-layer in itself

00372 gene tissue if a corresponding further reinforcement

00373 kung is still desired. Another reinforcement

00374 kung with other layers of fabric or mat, in a row

00375 situation. It is preferred that this

00376 are immediately produced integrally with the

00377 Position of the loop fabric. 00378

00379 As far as an edge reinforcement of the resulting component

00380 le, in particular a component 1 according to FIG.

00381 is desired, this can be done by inserting z. B. redirection

00382 mers, aluminum profiles, corner reinforcements or the like.

00383 achieved in the form in the simplest way

00384. The shape itself can also be used as a final 00385 profile can be used so that a stable frame

00386 encloses plates. 00387

00388 In Fig. 6 is a section cross-sectional view

00389 a tank lining shown. On the tank wall 13

00390 a resin layer 14 is applied. In the not yet

00391 hardened state of the resin layer 14 is - with the Schlin-

00392 gen 5 down - a plate part of FIG. 2 in the

00393 resin layer 14 has been indented. The resin layer 14

00394 completely surrounds a loop 5 in the tip region.

00395 constantly the loop structure, as in particular from

00396 Fig. 7 can be seen. It's such an intense form

00397 conclusive arrest of the hardened resin

00398 partly given in FIG. 2 on the tank wall 13. Further

00399 a coherent cavity 15 is hereby created.

00400 fen, for the monitoring tasks already mentioned

00401 can be used. 00402

00403 The terry cloth is particularly suitable for

00404 such linings because it is pliable and so easy on

00405 adapted a curved surface of a tank or the like

00406 can be. 00407

00408 The in the above description, the drawing

Features of the invention disclosed in claims

00410 both individually and in any combination for

00411 the realization of the invention may be of importance.

00412 All disclosed features are essential to the invention. In

00413 the disclosure of the application is hereby also

00414 disclosure content of the associated / attached priori

00415 full documents (copy of pre-registration)

00416 included.

Claims

00417 claims 00418

00419 1. Plate-like component (1), with a first and

00420 second outer layer (2, 3) and an intermediate layer (4)

00421 made of preferably foam, the first and second

00422 layer (2, 3) formed on the basis of a textile material

00423, characterized in that the first and / or

00424 second layer (2, 3) from a hardened resin

00425 fabric is formed, the cantilever extensions (5)

00426 forms which extensions (5) of the opposite position

00427 (2 or 3) are facing and by protruding into

00428 the intermediate layer (4) an arrest of the layers (2, 3, 4)

00429 effect. 00430

00431 2. Component according to claim 1 or in particular according thereto,

00432 characterized in that the extensions (5) loop

00433 are trained. 00434

00435 3. component according to one or more of the preceding

00436 claims or in particular according thereto, characterized

00437 net that the fabric is terry-like. 00438

00439 4. component according to one or more of the preceding

00440 claims or in particular according thereto, characterized

00441 net that the foam from a freely foamable

00442 resin is formed. 00443

00444 5. Component according to one or more of the preceding

00445 claims or in particular according thereto, characterized

00446 net that the extensions (5) a cantilevered length (1)

00447 from 1 to 10 mm. 00448

00449 6. Terrycloth-like fabric made from a technical yarn

00450 such as carbon fiber, aramid fiber, ceramic fiber or

00451 in particular consists of glass fiber and by curing 00452 Resin free protruding hardened loops (5)

00453 points. 00454

00455 7. terry cloth fabric according to claim 6 or in particular

00456 re thereafter, characterized in that the fabric, so-

00457 it is based on an electrically not or practically

00458 non-conductive base material is formed, individual

00459 threads that are electrically conductive, wherein a

00460 such a thread also forms a loop (5). 00461

00462 8. Component based on a hardened resin-coated

00463 gengewebes such as in particular a terry cloth, wherein

00464 two layers of fabric (2, 3) with the loops to each other

00465 are connected to each other through the resinification. 00466

00467 9- An object such as a tank, a plate part, a

00468 pipe or the like, with a lining, cover or

00469 sheathing, being on a surface of the object

00470 first a coating, for example made of a resin material

00471 is applied and a spacer element on the coating

00472 ment with a closed top layer with cantilever

00473 rests on the extensions in such a way that between the surface

00474 before and the cantilevered extensions a cavity (15)

00475 remains, characterized in that the extensions (5)

00476 are loop-like or loop-like and

00477 arrested by the coating with the object (13)

00478 are. 00479

00480 10. Object according to claim 9 or in particular according thereto,

00481 characterized in that the coating (14) is conductive

00482 is set. 00483

00484 11. Object according to one or more of the preceding

00485 the claims or in particular according thereto, characterized 00486 records that the spacer is a cured

00487 resinous tissue according to one of claims 6 or 7.