NO743123L

NO743123L -

Info

Publication number: NO743123L
Application number: NO743123A
Authority: NO
Inventors: Jean-Louis Carcel
Original assignee: Carcel Jean Louis
Priority date: 1973-08-31
Filing date: 1974-08-30
Publication date: 1975-03-24
Also published as: ES205532U; ES205532Y; FR2242148B1; DE2441375A1; FR2242148A1; BE819371A; ES429613A1; NL7411550A; DK461174A; SE7410903L; CH594790A5; LU70818A1; IT1020056B; CA1033935A; JPS5056248A; GB1471723A

Description

Benkelementer, samt fremgangsmåte ved fremstilling av disse. Bench elements, as well as the method of making them.

Foreliggende oppfinnelse vedrorer modulelementer, spesielt The present invention relates to modular elements, in particular

for benker i kjemiske laboratorier, samt en fremgangsmåte ved fremstilling av slike elementer. for benches in chemical laboratories, as well as a method for the production of such elements.

Det er kjent at kjemibenker må være være motstandsdyktige It is known that chemistry benches must be resistant

overfor mange substanser og spesielt overfor syrer. Av denne grunn omfatter en kjent metode å fremstille slike benker ved hjelp av glasserte fliser. En slik metode har visse ulemper. Som en folge av det faktum at glasserte fliser har små dimensjoner medgår det meget tid å plassere disse ved siden av hverandre. Ytterligere, da disse fliser i det fleste tilfeller er flate, kan de ikke anvendes for å tilveiebringe en perifer against many substances and especially against acids. For this reason, a known method involves producing such benches using glazed tiles. Such a method has certain disadvantages. As a result of the fact that glazed tiles have small dimensions, it takes a lot of time to place them next to each other. Furthermore, since these tiles are in most cases flat, they cannot be used to provide a peripheral

1 flens for å hindre en væske fra å flyte mot benkens utkant. 1 flange to prevent a liquid from flowing towards the edge of the bench.

En slik flens kan kun erholdes ved anvendelse andre spesielle fliser. Such a flange can only be obtained by using other special tiles.

Foreliggende oppfinnelse har til hensikt å eliminere slike ulemper ved å tilveiebringe modulelementer i stor storrelse, samt én fremgangsmåte for fremstilling av disse. The present invention aims to eliminate such disadvantages by providing large-sized modular elements, as well as one method for producing them.

I henhold til oppfinnelsen, er et modulelement, spesielt for kjemibenker, særpreget ved at den utgjores av en plate med dimensjoner som er storre enn dimensjonene for en glassert flis og således frembyr en tilfredsstillende arbeidsoverflate og hvor overflaten er syreresistent. According to the invention, a modular element, especially for chemistry benches, is characterized by the fact that it is made of a plate with dimensions that are larger than the dimensions of a glazed tile and thus provides a satisfactory working surface and where the surface is acid resistant.

I henhold til et ytterligere trekk ved oppfinnelsen, har platen en polygon kontur og minst en av sidene er forsynt med en kontinuerlig flens, som stikker opp over arbeidsoverflaten, slik at . enhver væske forhindres fra å flyte mot platens ytterside. According to a further feature of the invention, the plate has a polygon contour and at least one of the sides is provided with a continuous flange, which protrudes above the working surface, so that . any liquid is prevented from flowing towards the outside of the plate.

I henhold til ett ytterligere trekk ved oppfinnelsen, har platen rektangulær form med en bredde som er lik benkens bredde. According to one further feature of the invention, the plate has a rectangular shape with a width equal to the width of the bench.

I henhold til en modifikasjon har platen, form som L, hvis begge ben har bredder som er lik benkens bredde.^According to a modification, the plate has a shape like L, if both legs have widths equal to the width of the bench.^

I henhold til ett ytterligere trekk ved oppfinnelsen, har platen: According to a further feature of the invention, the plate has:

- en flens langs kun en av sidene, - a flange along only one of the sides,

- eller en flens langs topå .hverandre folgende sider, - or a flange along the top of every other following side,

- eller en flens langs hver av to motstående sider, - or a flange along each of two opposite sides,

- eller en flens langs tre på hverandre folgende sider, - or a flange along three successive sides,

- eller en flens langs fire sider. - or a flange along four sides.

I henhold til ett ytterligere trekk ved oppfinnelsen er platen According to a further feature of the invention, the plate

i form av et L-formet modulelement forsynt med en flens langs to på hverandre folgende sider,,som definerer det indre hjornet av L. in the form of an L-shaped modular element provided with a flange along two successive sides, which defines the inner corner of the L.

I IN

'■En benk fremstilt ved hjelp av modulelementene i henhold til oppfinnelsen er særpreget ved at den omfatter: enten ett enkelt, rektangulært element forsynt med en flens langs hver av dens fire sider, '■A bench produced using the modular elements according to the invention is distinctive in that it comprises: either a single, rectangular element provided with a flange along each of its four sides,

eller to elementer, som hver er forsynt med en flens langs tre på hverandre folgende sider, idet de to elementer er anordnet slik at de er i kontakt med hverandre langs deres respektive flenslose sider, or two elements, each of which is provided with a flange along three consecutive sides, the two elements being arranged so that they are in contact with each other along their respective flangeless sides,

eller minst tre elementer, hvorav to hver har en flens langs tre sider, mens det tredje element har en flens langs to motsatte sider, idet det tredje element er anordnet mellom de to forst-nevnte elementer, or at least three elements, two of which each have a flange along three sides, while the third element has a flange along two opposite sides, the third element being arranged between the two first-mentioned elements,

eller minst fire elementer hver forsynt med en flens langs to på hverandre folgende sider, idet hvert av elementene utgjor et hjorne av benken, or at least four elements each provided with a flange along two adjacent sides, each of the elements forming a corner of the bench,

eller minst seks elementer, hvorav fire hver rar en flens, langs to på hverandre folgende sider, mens de to andre har en flens kun iangs en side, idet de to sistnevnte elementer er anordnet me ni m de fire forste elementer som utgjor hver et hjorne av benken, or at least six elements, four of which each have a flange, along two consecutive sides, while the other two have a flange only on one side, the latter two elements being arranged at the same time as the first four elements, which each form a corner off the bench,

eller av minst to rektangulære elementer og et L-formet element, hvor de to rektangulære elementer hver har en flens langs to på hverandre folgende sider og det L-formede element er anordnet mot vegghjornet i et rom, mens de to rektangulære elementer definerer forlengelser av L's ben, or of at least two rectangular elements and an L-shaped element, where the two rectangular elements each have a flange along two consecutive sides and the L-shaped element is arranged against the wall corner in a room, while the two rectangular elements define extensions of L's leg,

eller minst fire rektangulære elementer og et L-formet element, hvor to av de rektangulære elementer hver har en flens langs to på hverandre folgende sider, og de to andre har hver en flens langs kun en side, og hvor det L-formede element er anordnet mot tp vegger i et romhjorne, mens hvert ben av L'en er forlenget forst av et element med en flens kun på en side og deretter av et element som har en flens langs på hverandre folgende sider. or at least four rectangular elements and an L-shaped element, where two of the rectangular elements each have a flange along two consecutive sides, and the other two each have a flange along only one side, and where the L-shaped element is arranged against tp walls in a room corner, while each leg of the L is extended first by an element with a flange on one side only and then by an element that has a flange along successive sides.

En fremgangsmåte ved fremstilling av modulelementene i henhold til foreliggende oppfinnelse er kjennetegnet ved at den består i å helle en pasta sammensatt av .polyesterharpiks blandet med et fyllstoff bestående av silisiumoksyd-pulver eller "Volvic" lava i en horisontal stopeform, hvis form tilsvarer elementets onskede form og deretter tillate at pastaen herdner imne i formen, og hvor fyllstoffet utgjor 60- 9o vekt-% av det ferdige produkt. A method of manufacturing the modular elements according to the present invention is characterized by pouring a paste composed of polyester resin mixed with a filler consisting of silicon oxide powder or "Volvic" lava into a horizontal mold, the shape of which corresponds to the desired shape of the element form and then allow the paste to harden inside the form, and where the filler makes up 60-90% by weight of the finished product.

I I henhold til et ytterligere trekk får materialet herdne etter at det er vibrert på et vibreringsbord. I According to a further feature, the material is allowed to harden after it has been vibrated on a vibrating table.

I henhold til et ytterligere trekk ved fremgangsmåten omfatter fyllstoffet: 3o vekt-% av et pulver med en partikkelstorrelse i området o, o4o-o, o8Dmm, According to a further feature of the method, the filler comprises: 3o weight-% of a powder with a particle size in the range o, o4o-o, o8Dmm,

5o vekt-% pulver med en partikkelstorrelse i området o,4 - 1 mm, 2o vekt-% av et pulver med en partikkelstorrelse i området 1 - 1,6 mm, 50% by weight of powder with a particle size in the range of 0.4 - 1 mm, 20% by weight of a powder with a particle size in the range of 1 - 1.6 mm,

idet polyester-harpiksen innbefatter: wherein the polyester resin includes:

o,l - o,5 °/o dimetylanilin, som virker som en aksellérator, 1-2 benzoylperoksyd, som virker som en katalysator. o.l - o.5 °/o dimethylaniline, which acts as an accelerator, 1-2 benzoyl peroxide, which acts as a catalyst.

I henhold til et ytterligere trekk ved oppfinnelsen, er formen dekket av et lag av enten polytetrafluoretylen ( kjent under According to a further feature of the invention, the mold is covered by a layer of either polytetrafluoroethylene (known under

forkortelsen PTFE.og solgt under handelsnavnet "Teflon") eller polytrifluorkloretylen (kjent under forkortelsen PTFCE), the abbreviation PTFE.and sold under the trade name "Teflon") or polytrifluorochloroethylene (known under the abbreviation PTFCE),

hvilket lag virker som et slipp-middel. which layer acts as a release agent.

I henhold til et ytterligere trekk ved fremgangsmåten, dekkes formen med slipp-middellaget, hvoretter dette belegges med et lag av et "gel-belegg" og formen fylles med ufarvet pasta etter at tiden som er nodvendig for å gjore "gel-belegget" heftende men ikke klebrig. According to a further feature of the method, the mold is covered with the release agent layer, after which this is coated with a layer of a "gel coat" and the mold is filled with uncolored paste after the time necessary to make the "gel coat" tacky but not sticky.

"Gel-belegget' utgjores fortrinnsvis av den folgende blanding: harpiks aktivator The "gel coating" is preferably made of the following mixture: resin activator

katalysator catalyst

titandioksyd titanium dioxide

ingen faste fyllstoffer. no solid fillers.

Pro séntandelen av titandioksyd bestemmes av flytbarheten av'gel-belegget' og er antatt til 5o%. The percentage of titanium dioxide is determined by the flowability of the 'gel coating' and is assumed to be 50%.

I I henhold til en modifikasjon tilsettes 3 - 4 % titandioksyd I According to a modification, 3 - 4% titanium dioxide is added

til pastaen som er påtenkt å utgjore selve modulelementet, to the paste that is intended to make up the module element itself,

slik at pastaen gjores hvit, hvoretter pastaen fylles direkte i so that the pasta is made white, after which the pasta is filled directly in

: i formen etter at denne er belagt med slipp-middelet. De vedlagte tegninger illustrerer oppfinnelsen ytterligere. : in the mold after it has been coated with the release agent. The attached drawings further illustrate the invention.

Fig. 1 er et perspektivsnitt av et modulelement i henhold til oppfinnelsen. Fig. 2 er et tverrsnitt av et modulelement i henhold til oppfinnelsen. Figuren<i>e 3 - 8 er snitt som viser de forskjellige utforelses-former for et rektangulært element. Fig. 1 is a perspective section of a modular element according to the invention. Fig. 2 is a cross-section of a modular element according to the invention. Figures 3 - 8 are sections showing the different embodiments of a rectangular element.

Fig. 9 er et snitt som viser et L-formet element. Fig. 9 is a section showing an L-shaped element.

Fig. lo er et generelt snitt av en kjemisk benk for et labora-torium som er fremstilt ved hjelp av elementene i henhold til oppfinnelsen. Fig. 11 er et perspektivsnitt av en form påtenkt for fremstilling av et modulelement. Fig. 10 is a general section of a chemical bench for a laboratory which has been produced using the elements according to the invention. Fig. 11 is a perspective section of a form intended for the production of a modular element.

Fig. 12 er et tverrsnitt av formen i henhold til fig. 11. Fig. 12 is a cross-section of the mold according to fig. 11.

Fig. 13 viser en ytterligere modifisert utforelsesform av modulelementet i henhold til oppfinnelsen. Fig. 1 viser et modulelement 1, i henhold til oppfinnelsen, hvor elementet vises som en plate i ett stykke, som har en stor arbeidsoverflate 2. Bredden 3 av platen er lik bredden av kjemibenken. Fig. 13 shows a further modified embodiment of the modular element according to the invention. Fig. 1 shows a modular element 1, according to the invention, where the element is shown as a plate in one piece, which has a large working surface 2. The width 3 of the plate is equal to the width of the chemistry bench.

Denre plate kan ha en kant eller flens 4, som stikker opp over arbeidsoverflaten 2 ( fig. 29 og ligger: This plate can have an edge or flange 4, which protrudes above the working surface 2 ( fig. 29 and lies:

enten langs alle fire sider av platen, såsom vist i fig. 3, either along all four sides of the plate, as shown in fig. 3,

eller langs tre på hverandre folgende sider, som vist i fig 4, eller langs to på hverandre folgende sider, som vist i fig. 5 og 8, eller langs to motsatte sider, såsom vist i fig. 7, or along three consecutive sides, as shown in fig. 4, or along two consecutive sides, as shown in fig. 5 and 8, or along two opposite sides, as shown in fig. 7,

eller langs kun en side, såsom vist i fig. 6. or along only one side, as shown in fig. 6.

I henhold til en modifikasjon av oppfinnelsen, har modulelementet form en som L, såsom vist i fig. 9. De to på hverandre folgende sider av elementer som definere den indre vinkel av L'en er hver forsynt med en flens. According to a modification of the invention, the module element has a shape like L, as shown in fig. 9. The two consecutive sides of elements defining the inner angle of the L are each provided with a flange.

Arbeidsoverflaten 2 av modulelementet er syresikker. The working surface 2 of the modular element is acid-proof.

i Modulelementene kan anvendes på de folgende måter: i The module elements can be used in the following ways:

enten anvendes ett enkelt element, som har en flens langs alle fire sider og utgjor derfor den kjemiske benk 5 (fig. lo), eller det anvendes tre rektangulære elementer, av hvilke to hver har en flens langs tre av deres sider, mens det tredje element har en flens langs motsatte sider, hvorved det frem-stilles den kjemiske benk 6, either a single element is used, which has a flange along all four sides and therefore constitutes the chemical bench 5 (fig. lo), or three rectangular elements are used, two of which each have a flange along three of their sides, while the third element has a flange along opposite sides, whereby the chemical bench 6 is produced,

eller det kan anvendes 6 rektangulære elementer, hvorav fire hver har en flens langs to på hverandre folgende sider, mens de andre hverhar en flens på kun en side, hvorved det erholdes den kjemiske benk 7, or 6 rectangular elements can be used, four of which each have a flange along two consecutive sides, while the others each have a flange on only one side, whereby the chemical bench 7 is obtained,

eller flere rektangulære elementer og to L-formede elementer, anvendes, idet de L-formede elementer hver er anordnet mot veggene i et hjorne av et rom, hvorved det erholdes den kjemiske benk 8. or several rectangular elements and two L-shaped elements are used, the L-shaped elements each being arranged against the walls in a corner of a room, whereby the chemical bench 8 is obtained.

For å fremstille elementene i henhold til oppfinnelsen, anvendes formen 9 (fig. 11).. Stopeformen har en form som tilsvarer elementenes onskede form. Spesielt har den et spor 11 påtenkt for å danne flensen på elementet. Denne stopeform er fremstilt av stål belagt med "Teflon". v To produce the elements according to the invention, the mold 9 (fig. 11) is used. The stop mold has a shape that corresponds to the desired shape of the elements. In particular, it has a groove 11 intended to form the flange of the element. This stop shape is made of steel coated with "Teflon". v

En pasta påtenkt å utgjore grunnstrukturen i modulelementene helles i formen. Denne pasta består av: en polyesterharpiks inneholdende o,l - o,4 % dimetylanilin og 1 2 % benzoylperoksyd, A paste intended to form the basic structure of the module elements is poured into the mold. This paste consists of: a polyester resin containing 0.1 - 0.4% dimethylaniline and 1 2% benzoyl peroxide,

et fyllstoff bestående av silisiumoksyd-pulver eller "Volvic" a filler consisting of silica powder or "Volvic"

lava. lava.

Fyllstoffet omfatter: The filler includes:

3o vekt-% pulver med en partikkelstorrelse i området o,o4o -0,080mm, 3o weight-% powder with a particle size in the range o.o4o -0.080mm,

5o vekt-% pulver med en partikkelstorrelse i området o,4 - 50% by weight powder with a particle size in the range o.4 -

1 mm, 1mm,

2o vekt-% pulver med en partikkelstorrelse i området o - 1,6 mm. 2o weight-% powder with a particle size in the range o - 1.6 mm.

Fyllstoffet utgjor 6o - 9o vekt-% av det ferdige produkt. The filler makes up 6o - 9o weight-% of the finished product.

S En viss mengde av denne pasta blandes med 3 - 4 % titandioksyd i den hensikt å gjore pastaen hvit. S A certain amount of this paste is mixed with 3 - 4% titanium dioxide in order to make the paste white.

Rekkefolgen i stopetrinnen er som folger: The sequence in the stop step is as follows:

Stopeformens hulrom belegges med et slippmiddel 12, som kan være en silikon eller en polyviny1alkohol, The cavity of the stopper mold is coated with a release agent 12, which can be a silicone or a polyvinyl alcohol,

dette belegg dekkes med et "gel-belegg" 13, som utgjores av noe av pastaen til hvilken titandioksyd er tilsatt, etter den tid som er nodvendig for at "gel-belegget" 13 blir heftende men ikke klebrig helles pastaen 14 i dens ufargede tilstand inntil formen er fyllt opp. this coating is covered with a "gel coating" 13, which is made up of some of the paste to which titanium dioxide has been added, after the time necessary for the "gel coating" 13 to become adherent but not sticky, the paste 14 is poured in its uncolored state until the form is filled.

I henhold til en modifikasjon kan ]aget av "gel-belegg" utelates hvorved formen fylles opp med farvet piasta. According to a modification, the layer of "gel coating" can be omitted whereby the mold is filled up with colored piasta.

Under herdetrinnet kan formen utsettes for vibrasjoner på et vibrasjonsbord, slik at alle gasser kan få unnslippe fra pastaen 14, hvorved dannelse av bobler i pastaen forhindres. During the curing step, the mold can be exposed to vibrations on a vibration table, so that all gases can escape from the paste 14, thereby preventing the formation of bubbles in the paste.

I henhold til en ytterligere modifikasjon innfores en treplate 2o,som tjener som underside av elementet, for å erstatte en del av volumet av pastaen som utgjor modulelementet (fig. 13). Således kan omkostningene for artiklen vesentlig reduseres. Platen er fortrinnsvis fremstilt av sammenpressede trefibre og har en tykkelse på 25 mm. According to a further modification, a wooden plate 20 is introduced, which serves as the underside of the element, to replace part of the volume of the paste that makes up the modular element (fig. 13). Thus, the costs for the article can be significantly reduced. The board is preferably made from compressed wood fibers and has a thickness of 25 mm.

Fordelene ved oppfinnelsen er som folger: The advantages of the invention are as follows:

den muliggjor oppbygning av kjemilaboratorie-benker ved hjelp av et redusert antall modulelementer, it enables the construction of chemistry laboratory benches using a reduced number of modular elements,

den muliggjor tilveiebringelsen av en perifer flens, som dannes it enables the provision of a peripheral flange, which is formed

samtidig med elementet, hvilken flens forhindrer at en eventuell væske flyter mot utsiden av kjemibenken, at the same time as the element, which flange prevents any liquid from flowing towards the outside of the chemistry bench,

den nedsetter de fleste omkostninger med sammenfSyninger, og tilveiebringer som et resultat, en storre letthet ved håndtering av flasker og forflytning av disse og en foroket flathet av arbeidsoverflaten, samt en nedsatt risiko for korrosjon i sammen-føyningene. it reduces most of the costs of joints, and provides as a result, a greater ease when handling bottles and moving them and an increased flatness of the working surface, as well as a reduced risk of corrosion in the joints.

Claims

1.. A modular element, especially for benches in chemical laboratories, is characterized by the fact that it is made of a plate, the dimensions of which are larger than the dimensions of glazed tiles, so that the element provides a work surface that is sufficient as such, and where the surface is acid resistant.

2. Method according to claim 1, characterized in that the plate has a polygon-shaped perimeter, at least one side of which is provided with a continuous flange, which protrudes above the work surface, so that a possible flow of liquid towards the outside of the edge of the plate is stopped.

3. Modular element according to claims 1 or 2, characterized in that the plate has the shape of a rectangle, the width of which is equal to the width of the chemistry bench, and where the plate has: either a flange along only one of the sides, or a flange along two consecutive sides, or a flange along two opposite sides, or a flange along three consecutive sides, or a flange along all four sides.

4. Modular element according to claim 1 or 2, characterized in that the plate has the shape of an L, whose two legs have a width that is each equal to the width of a chemistry bench, and where the plate has a flange along two of the successive sides, that make it up inner corner of an L.

5. Chemistry bench obtained using the modular elements according to claims 1-4, characterized in that it comprises: either a single rectangular element, which has a flange along all four sides, 2 elements which each have a flange along three consecutive sides, the elements being arranged so that they are in contact with each other along their respective flanged sides, or at least 3 elements, 2 of which each have a flange along three sides, while the third element has a flange along two opposite sides, the third element being arranged between the first two elements, or at least four elements each provided with a flange along two consecutive sides, each of the elements form a corner of the chemistry bench, or at least 6 elements, four of which each have a flange along two consecutive sides, while the other two each have a flange along only one side, these two latter elements are placed between the first four elements each of which forms a corner of the chemistry bench, or at least two rectangular elements and a. L-shaped element, where the two rectangular elements each have a flange along two successive sides and where the L-shaped element is arranged against the wall of a room corner, while the two rectangular elements form an extension of the L's legs. or at least four rectangular elements and an L-shaped element, with two of the rectangular elements each having a flange along two consecutive sides and the other two rectangular elements each having a flange along only one side, and where the L-shaped element are arranged against the walls in a room corner, while each leg of the L is extended by elements that have a flange along two successive sides.

6. Method for the production of the module elements according to claims 1 - 4, characterized in that it comprises pouring a paste into a horizontal mold, whose cavity corresponds to the desired shape. of the element, to • allow the paste to harden inside the mold, the paste being composed of a polyester resin mixed with a filler consisting of silicon oxide powder or "tfolvic" lava, the filler constituting 6o - 9o weight-% of the finished product .'

7. Method according to claim 6, characterized in that a filler is used consisting of: 30% by weight powder with a particle size in the range o.o4o-0.080mm, in 50% by weight of a powder with a particle size in the range o, 4 - 1 mm, 20% by weight of a powder with a particle size in the range 1 - 1.6 mm, and where the polyester resin comprises: 0.1 - 0.5% by weight dimethylaniline, which acts as an accelerator, 0.1 - 2% by weight benzoyl peroxide, which acts as a catalyst.

8. Method according to claims 6 and 7, characterized in that a mold is used whose interior is completely covered with a layer, either of polytetrafluoroethylene or of polytrifluorochloroethylene, which layer acts as a release agent.

9. Method according to claims 6-8, characterized in that after the mold has been coated with a release agent, coated the release agent with a layer of a "gel coating", after which the mold is filled with paste only after the time required for the "gel coating" to become adherent but not sticky has elapsed.

10. Method according to claim 9, characterized in that a mixture is used as "gel coating" consisting of: resin, activator, catalyst, titanium dioxide, the last component acting to color the "gel coating" white, and where the percentage of titanium dioxide is approx. 50%, depending on the desired viscosity of the gel coating.

11. Method according to claims 6-8, characterized in that 3-4% titanium dioxide is added to the paste intended to form the structural part of the module element, so that the paste is colored white, the paste being poured into the mold immediately after it has been coated with a release agent, whereby the manufacturing time is shortened as the layer of the "gel coating" is omitted.

12. Method according to claims 6 - lo, characterized in that, after filling the mold, the paste is vibrated for hardening on a vibrating table. J

13. Method according to claims 6-11, characterized in that a wooden board, whose dimensions are somewhat smaller than the element, is arranged in the mold for this to be filled up with the paste, which is intended to fill the mold, the mold being intended to replace part of the paste's volume, in order to thus reduce the production costs.