CN1157603A

CN1157603A - Flexible barrier member useful in aerosol dispensers

Info

Publication number: CN1157603A
Application number: CN95194955A
Authority: CN
Inventors: 罗伯特·亨利·阿普拉纳尔普
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-19
Filing date: 1995-07-19
Publication date: 1997-08-20
Also published as: EP0771294A4; NZ291562A; NO970179L; NO970179D0; KR970704614A; PL179040B3; PL318170A3; BR9508317A; MX9700473A; CA2195405A1; AU709138B2; FI970220A; JPH10502893A; ZA956019B; RU2142901C1; EP0771294A1; WO1996002439A1; FI970220A0; AU3273495A

Abstract

A dispenser comprising a valved aerosol container (22) and a unitary flexible barrier member (10) having an outer wall segment (12) terminating in a sealing flange (16). The sealing flange (16) is joined to the container (22) between top and sidewall portions (27, 25), and an inner wall segment (14) is joined to the outer wall segment (12) through a fold (15). A central piston region (20) emerges from the terminus of the inner wall segment (14) distal to the fold (15). The barrier (10) is sufficiently thick and rigid to be free-standing before incorporation into a pressurized container (22). The outer and inner wall segments (12, 14) are oppositely-directed frustoconical shapes forming an acute angle with each other when the barrier (10) is initially inserted into the container (22). The outer wall segment (12) is thicker and more rigid than the inner wall segment (14). The barrier (10) is nestable with like barriers (10).

Description

The flexible barrier member that is used for aerosol dispenser

The application be the exercise question submitted on June 2nd, 1994 for the u.s. patent application serial number of " flexible barrier member that is used for aerosol dispenser " be 08/253,143 part continuation application, and this application 08/253,143 is again that the exercise question of submitting on June 29th, 1993 is the part continuation application of " flexible barrier member that is used for aerosol dispenser " u.s. patent application serial number 08/084,638.

Background of invention

1 invention field

The present invention relates to pressure divider package such as pressurized package part, wherein the goods that need provide and deliver and pressure generation medium are propellant, are isolated in the relative both sides of baffle element by separation.This pressurized package part so-called " baffle element package " formula pressurized package part.

2 prior arts are described

The aerosol baffle element package of prior art has three kinds of common type at least.In piston type baffle element package, baffle element is a piston shape member, and this member is with respect to the inside face of container in container and is slidingly installed.Need the goods of dispensing to be contained in band valve one side of piston, and the propellant that produces pressure in container is contained in the relative opposite side of piston.Nineteen eighty-two, second edition " described the piston type aerosol dispenser of being sold with brand name " Mira-Flo " by U.S. Vessel Inc (American Can Company) in the aerosol handbook (Aerosol Handbook).In " Mira-Flo " distributing box, piston skirt is designed to sealing paste and leans against on the side of container in case thrust air inlet body enters the goods chamber that is positioned at the piston opposite side.The actuating of aerosol discharge-service valve can make the pressure decay in the goods chamber, makes the pressure in the propellant chamber push piston to discharge-service valve and discharge goods by discharge-service valve thus.In US Patent 3,022, some embodiment of piston type baffle element package have been described in 923,3,756,476 and 3,929,132.

In second kind of aerosol baffle element package, on the opening of container, flexible and bag collapsible (collapsible) is fixed on the aerosol discharge-service valve or is fixed on the crimping of vessel port.Continent Vessel Inc (Continental Can Company) releases the aerosol baffle element distributing box of a kind of being called " Sepro-Can " in the later stage sixties.This " Sepro-Can " distributing box has inner plastic product bag, and the opening of this goods bag is fixed on the opening of valve of container top.The sidewall of bag extends and is accordion shape inverted pleat along the sidewall of container, and therefore when bag was drained, under the effect of the pressure in the remainder of container, this bag inwardly made progress and folds.In US Patent 3,788, this second kind of baffle element package described in 521,3,896,970 and 4,067,499.In some modified structures of second kind of baffle element package, bag is fixed on the sidewall of container or is fixed on the sidewall and the bonding part between the top of container.

The baffle element package of the third prior art is a cup-shaped baffle element that launches, and wherein an end of this baffle element outer wall is connected on the sealing flange, and the inwall of described outer wall and container is adjacent.Originally the baffle element inwall is folded in the outer wall, and an end of this inwall is a closed end.With baffle element be contained in the band valve aerosol container in and sealing-in on sidewall and the bonding part between the closed bottom end at container.By the band valve opening of the container product of packing into, and by the propellant of packing into of the opening on the container closure bottom.The actuating of valve has reduced the pressure in the goods chamber and has made the baffle element inwall stretch in the outer wall of baffle element, thereby the closed end of baffle element inwall is pushed ahead, and pushes goods to discharge-service valve thus.In US Patent 3,109, the baffle element package of this third prior art has been described in 463.

The problem of first kind of piston type baffle element package existence is: the leak tightness between piston side skirt and the container side wall is undesirable, so that has discharged propellant when discharging product thereupon, and this makes propellant infiltrate goods, also makes goods be subjected to the pollution of propellant.In addition, be that aerosol container tends to cave in and loses its real circumferential shapes significantly, make piston in container, can not and move axially through abnormal shape part.

Be fixed on the valve of container or the problem that exists in second kind of baffle element package on the opening of valve is at baffle element: baffle element makes in some way the goods quilt stay in the folding baffle element and has reduced the degree of emptying goods in the container that this is undesirable.

In this manual in the baffle element package of described the third prior art, the cup-shaped baffle element that launches can not paste container inner wall gradually and equably and move forward, and tends to the goods nest stayed and be trapped on the wall or with the goods nest stay and be trapped in the sunk part that forms in himself when baffle element launches.Once attempted to set up an additional stiff piston for solving this class problem, the outer wall of baffle element is attached on the inwall of container in strippable mode at the closed end of baffle element inwall.In general, the third baffle element is difficult to be shaped, also be difficult to be inserted into container and with this container sealing-in.

Therefore, a kind of flexible goods/propellant baffle element that is used for aerosol container of necessary employing, it is easy to make, shipment, insert container and with this container sealing-in, and can prevent that fluid from leaking in another chamber from a chamber, can not cave in yet and thereby hinder the abundant emptying of goods.

Summary of the invention

The present invention relates to improvement to the third baffle element package.Put it briefly, the present invention relates to a kind of flexible and extendible baffle element of integral type that is used for compound cavity type band valve pressure container, wherein this baffle element has certain spatial form, before this baffle element being inserted and be used for the pressure container of compound cavity type band valve, it has enough rigidity to keep its shape.This baffle element comprises a flexible and extendible wall portion, this wall portion has with an angled kink assign to bonded assembly outside wall portions and inner wall part, the free end of outside wall portions constitutes sealing arrangement, and inner wall part and bending part opposing ends extend to the central piston part of sealing baffle element.In a preferred embodiment, outside wall portions is precipitous truncated cone shape and constitutes a sealing-in device at its free end, the inside face that inner wall part is set up with outer wall is coordination, and the formation precipitous truncated cone shape opposite, thereby between outside wall portions and inner wall part, form a less acute angle with outside wall portions truncated cone shape direction; Inner wall part and bending part opposing ends are sealed by central piston part and are formed holistic baffle element.In addition, when baffle element in container during by the top sealing-in, inner wall part has enough flexible shapes that is penis so that move down vertically under the effect of inner wall part and described central piston part semifinished piece pressure substantially.In addition, inside and outside wall portion has enough flexible and extendabilities, but therefore the effect of semifinished piece pressure is outwards extended so that fit basically with the inside face of container down.When outside wall portions has enough thickness and its rigidity greater than inner wall part, outside wall portions will continue to fit substantially with the inside face of container, and flexible inner wall part will make baffle element recover the shape of its initial setting up in container the time substantially ploughing under outside wall portions under the effect of propellant pressure.After this, inner wall part and central piston part can be radially outwards and upwards expansion with the goods in the emptying receptacles basically.When outside wall portions had less thickness and rigidity, inner wall part and central piston part will move up under the effect of propellant pressure vertically, and inside and outside then wall portion can closely press together and move up.Under latter event, goods substantially can be from emptying in the container when the low viscosity (LV) goods at least.

Can before inserting container, keep its shape because baffle element of the present invention has enough rigidity and have conical outer wall portion, so this baffle element is highly susceptible to inserting the top of container.Because baffle element has bevelled inside and outside wall portion, load and transport also so this baffle element can gather into folds with identical baffle element cover and can save freight charges.In addition, described intussusception also is convenient to rapid, easy machinery the baffle element of intussusception sequentially be packed in the container.

In a preferred configuration of the present invention, outside wall portions is thicker than inner wall part and rigidity outside wall portions is better than inner wall part; And the length of inner wall part is shorter than outside wall portions slightly; Sealing-in device is the flange that radially extends, and it is as the packing ring between container side wall top and the container cap.The central piston part also can be thicker than inner wall part.

The only material of baffle element is polyethylene terephthalate (PET).Become the occasion of key issue at the penetrablility of baffle element, baffle element of the present invention can adopt whole multilayer structure.Material that this multilayer structure constitutes and the people who makes for this area are well-known.In general, in three-decker, inner layer material is used for preventing propellant and product permeable material and outer propellant and goods is not chemically reacted.

The accompanying drawing summary

Fig. 1 is the longitudinal sectional drawing of an embodiment of baffle element of the present invention.

Fig. 2 is the longitudinal sectional drawing that is installed in Fig. 1 baffle element in the empty aerosol container, wherein briefly shows the opening of container top and not shown aerosol valve.

Fig. 3 is for behind container that goods are packed into but during the position before the container of propellant not being packed into as yet, the scheme drawing of baffle element of the present invention in aerosol container.

Fig. 4 is after goods are partly discharged in the container, the scheme drawing of baffle element of the present invention in aerosol container.

Fig. 5 is after further the upset of discharge goods and baffle element becomes its original shape in aerosol container, the scheme drawing of baffle element of the present invention, and the state after the whole discharges of goods shown in broken lines.

Fig. 6 is the part sectional view of multiple layer baffle element of the present invention.

Fig. 7 illustrates the situation of baffle element intussusception of the present invention.

Fig. 8 is the sketch of several steps when utilizing sheet plastic to make baffle element package of the present invention.

Fig. 9 is the sketch of the heat forming equipment of baffle element package of the present invention.

Detailed Description Of The Invention

With reference to accompanying drawing, Fig. 1 illustrates integral type baffle element 10, and when its initial formation, described baffle element has wall 11, this wall comprises that an end of outside wall portions 12 is connecting sealing flange 16 by flexible extendible outside wall portions 12 of bending part 15 bonded assemblys and flexible extendible inner wall part 14.At the end 18 of inner wall part 14, central piston part 20 extends internally and seals this baffle element.Should be pointed out that outside wall portions 12 has the precipitous truncated cone that extends to bending part 15 from sealing flange 16, and inner wall part 14 have the precipitous truncated cone opposite with outside wall portions 12 directions that extends to central piston part 20 from bending part 15.

The outside wall portions 12 of band sealing flange 16 has enough thickness and rigidity so that baffle element has certain spatial form, and baffle element is freestanding and is easy to insert container like this.

Have been found that, that make and baffle element that have following size can be satisfactorily as the baffle element in the pressure container with polyethylene terephthalate (PET): sealing flange thickness: 0.007 " outside wall portions thickness: from close on flange 0.007 " be thinned to the kink office 0.004 " inner wall part thickness: from close on the kink office 0.004 " be thinned to and close on central piston 0.002 " the central piston part: the junction in inner wall part and central piston part is 0.002 " partly, ", and thicken to 0.007 at the middle body of piston " the outside wall portions length that and in above-mentioned bonding pad, rapidly increases to 0.004: Inner wall part length: The container that uses above-mentioned PET baffle element is 202 * 509 straight flange tank container, and its diameter is

And length is

The inside and outside wall of

baffle element portion

14,12 respectively has 1 ° tapering to be formed on the bending part 15 that is 2 ° of angles between the inside and outside wall portion 14,12.Can believe, can obtain gratifying effect when the tapering of each inside and outside wall portion is 3 °.The central piston of above-mentioned baffle element partly has shape as shown in Figure 1, and wherein the thickness of the end 18 of piston periphery is 0.188 ", its radius be 0.063 ".The sealing flange 16 of above-mentioned baffle element is 0.078 with the knuckle radius of outside wall portions 12 ".

Fig. 2 illustrates the baffle element 10 that inserts in the band valve pressure container, container is totally represented with 22, this container has inner wall surface 23, baffle element for good and all is fixed on the container 22 by means of the suitable crimping of this flange 16 by sealing flange 16, and the crimping of this flange 16 is between the periphery of the top cover 27 of attaching parts that the sidewall upper 25 by container 22 forms and container 22.Sent out sight, baffle element package of the present invention is specially adapted to generally to be called the container of " curved in the edge " formula, but this not restricted application in the type of (aerosol) pressure container of baffle element of the present invention.On closed bottom 26, be provided with in order to introduce the sealable opening 28 of propellant.In the opening 29 of pressure container 22, manually-operated valve (not shown) has been installed in mode well known to those skilled in the art.

As shown in Figure 2, baffle element 10 is separated into multiple cavity pressure container with the inside of container 22; Epicoele 33 needs the goods of dispensing in order to pack into, and cavity of resorption 35 is in order to the propellant of packing into.In general, the container originating firm can insert baffle element 10 in the container 22, and as described above itself and container is sealed up.Then, tucker is respectively charged into goods and propellant in the

chamber

33,35.

Sealing behind the flange 16 between container 22 tops and container 22 upper portion side wall, goods are being packed in the goods chamber 33 so that baffle element 10 stretching, extension fully downwards container 22 in, thereby be fitted in substantially on the inside face 23 of container 22, as shown in Figure 3.Goods are being charged in the process of container, the device of an air-out in propellant chamber and/or goods chamber need be set.After in propellant chamber 35 that propellant is packed into, the aerosol valve that container just can easily be installed in the vessel port 29 by actuating is discharged goods.

Fig. 2 illustrates baffle element 10 is installed to structure on the container 22.Fig. 2 illustrates the baffle element package 10 with the end flange 16 of stretching out from outside wall portions 12.This flange 16 closely is engaged between flange 25 and 27.Adopt the known technology of those skilled in the art,

flange

25,27 and 16 volumes are formed lock seam to sidewall 12.The thickness of sealing flange 16 and length depend on the requirement of lock seam, and this is different along with the type of container and crimping equipment.Sealing flange 16 can be thicker than the outside wall portions 12 of adjacency.Sealing flange 16 is in the effect that the baffle element sealing-in can be played tightening seal washer on container base the time.If desired, can on the member that the need crimping engages, apply adhesives.

Fig. 3 is illustrated in goods are packed into and is in the baffle element of initial position in short time behind the container.When activating the valve that is installed in the pressure container open top continuously or off and on, pressure owing to the pressure decays in the goods chamber 33 in the propellant chamber 35 is bigger, thereby begin to make the inwall 14 of baffle element 10 to plough under in the outer wall 12, and promote the discharge-service valve of goods thus by container, make goods in container, discharge.When discharging goods in container 22, along with the upset of baffle element, inner wall part 14 and central piston part 20 move towards the aerosol discharge-service valve vertically, as shown in Figure 4.

15 entire portion has enough thickness if outside wall portions 12 is from end flange 16 to bending part, and then in the whole process of the discharging goods shown in the Figure 4 and 5, outside wall portions can continue to be fitted in basically on the inside face 23 of wall of container.Then, baffle element returns to its original shape substantially, and as shown in Figure 5, inner wall part 14 and central piston part 20 are done radial and axial expansion to shape shown in dotted lines in Figure 5 then, so that substantially with goods all emptyings from container.For obtaining this effect, the thickness of outside wall portions 12 may need basically greater than the above 0.007 " thickness; Do not wish to do any restriction, this thickness of 15 can be to be about 0.020 "～0.025 " from flange 16 to bending part, or is enough to make inner wall part to plough under the interior thickness of outside wall portions as shown in Figure 5 fully.Adopt this thicker outside wall portions, just the abundant from container emptying of more tacky goods can not had significant nest and stays phenomenon.Here, inner wall part remains thin and has flexible.

If the thickness of outside wall portions 12 is approximately 0.007 ", from Fig. 4 to almost all the transition of emptying goods will cause inside and

outside wall portion

14,12 inwardly closely to press together and move up.In this case, adopt water, can realize substantially the emptying goods and do not have significant nest and stay phenomenon through overtesting as the simulation goods.But when adopting sticking goods, adopt thicker outside wall portions 12 not have nest and stay phenomenon to obtain being emptied completely of goods with regard to needs.

See, when outside wall portions 12 has enough thickness, the frustoconical configuration of inner wall part 14 makes inner wall part 14 in axial direction little by little plough under outside wall portions 12, makes goods little by little advance and nest is stayed or the phenomenon of holding back goods reduces to minimum as far as possible to discharge-service valve.

The tapering of outside wall portions makes baffle element of the present invention be easy to insert in the pressure container.The tapering of the smaller angle that inside and outside wall portion all has is intussusception baffle element to greatest extent also, so that baffle element is shipped to the container manufacturing from the scene of making on-the-spot and reduce freight charges.Make the scene at container, the baffle element lamination of intussusception is convenient to it is sent in the container fast and sequentially.Pushed in the cell therefor from its baffle element lamination under the effect of initial vacuum that the baffle element of each intussusception can be in shell of tank, each baffle element has just broken away from vacuum state when it is inserted into cell therefor; Also available air is blown into the baffle element of each intussusception in the cell therefor from the baffle element lamination.Deliver under the baffle element lamination of intussusception with being about to next shell of tank, continue next container and baffle element are made repeated operation.Constantly with containers sequentially deliver under the baffle element lamination of intussusception, just can obtain at a high speed and easy feed operation by this intussusception.

For the propellant that exists in the distributing box that overcomes prior art and/or the goods infiltration problem by baffle element, flexible barrier member of the present invention can randomly adopt plied timber manufacturing.Fig. 6 illustrates and is included as the infiltration that prevents propellant and goods and the wall construction of design-calculated internal layer 102.Internal layer 102 is clipped between outer 104 and 106, and skin does not chemically react to propellant or the goods that are in contact with it.Can randomly adopt tack coat 108 and 110, perhaps also can inside and outside layer 102,104,106 be fused together by heating or other modes.In one embodiment, internal layer 102 is a barrier layer for gases, and outer 104,106 is water-based or organic fluid barrier layere.Barrier layer for gases can adopt polyethylene terephthalate (PET), ethylidene vinyl alcohol, polyvinyl alcohol, polyvinylidene chloride, polyacrylinitrile, glass paper or other similar suitable materials.Skin can adopt polyethylene terephthalate (PET), polyethylene (particularly high density polyethylene (HDPE)), polypropylene, polytetrafluoroethylene, poly-butane, Surlyn A (surlyn ionomev), butyl rubber, polyvinylidene chloride, polychlorotrifluoroethylene, chlorinated polyether, poly-vinyl fluoride or other similar suitable materials.Ethylidene vinyl alcohol and polyvinyl alcohol are preferred gas barrier layer materials, and high density polyethylene (HDPE) is preferred water-based or organic fluid barrier material.

Any propellant known in the art can be used in distributing box and the flexible barrier member of the present invention.Baffle element of the present invention adopts the baffle element package system of pressure gas to compare the liquefied propellant that requires less amount with without hindrance block body package aerosol systems and some, thereby can adopt expensive propellant cost-effectively.System of the present invention will provide and deliver away goods to maximum as far as possible from given container.

As previously mentioned, baffle element of the present invention adopts and is generally known as hot formed manufacturing process and just can be made into.In general, utilizing sheet plastic is well-known by the thermoforming technology of making the plastics forming body.The particular refinement of this ordinary skill can be used for heat forming technology to form certain specific shape.Fig. 8 illustrates the several steps of making baffle element package of the present invention.In step 1, sheet plastic for example thickness is 0.025 " PET through dry heat district (heating furnace) to reach 250 °-330 forming temperature.Preferably make PET be in 285 °-300 °F, promptly avoid the ultimate temperature in 250 ° of-330 ° of scopes.Found to be applicable to the PET material that forms the baffle element package be biaxial orientation and be suitable for doing the deep-draw thermoforming.

Baffle element package of the present invention is the deep-draw part, thereby is easy to produce " reticulate pattern " phenomenon, just can form the gauffer of excess material on model bottom and baffle element sidewall.When " reticulate pattern " when becoming key issue, the temperature of conscientiously controlling the sheet plastic material is vital.In addition, controlling temperature and preventing that temperature from surpassing under the situation of sheet plastic material deformation temperature, plastic material can keep plastic memory to a certain degree, and this plastic memory helps prevention or eliminates " reticulate pattern " phenomenon.

In step 2, fore-warming PET thin plate is moved to shaping bench board (hot former), the PET thin plate utilizes one at this, and " helping the top plug " does pre-the stretching, extension so that the inner wall part and the piston portion of preliminarily forming baffle element package, and utilizes the partially-formed outside wall portions of one " ring ".As shown in Figure 9, should " ring " help to prevent " reticulate pattern " phenomenon." help top plug " and " ring " is installed on the upper movable template (top substrate) of hot former, but is located immediately at the opposite of the bottom moving platen (substrate) that model is housed.After the sheet plastic with heating is contained between the bolster, just begin shaping operation, can the thin plate of heating be clipped in the middle by being movable relative to each other template.At movable platen and in making its process that is in contact with one another at last, " help top plug " and " ring " enters the inner chamber of model with the thin plate calendering and round the surface of internal cavity of this model, makes the PET thin plate of heating locate with this model applying in the bottom of the bending part that connects inside and outside wall portion and " ring " and contact.Should " ring " the PET sheet plastic be pressed on the substrate of hot former, make around die cavity, to form ring seal.After forming sealing, in model, produce vacuum and the PET sheet plastic is stretched on the model surface, thereby finish the last shaping of PET sheet plastic.

The aluminum conduction model that is coated with special teflon is with water-cooled, and " helping the top plug " and " ring " are for being coated with the fine-grained wood product of felt, to avoid scratching and clinging drip molding.

Through after enough coolings, bolster is separated and the sheet plastic that is shaped is sent to the finishing process platform (step 3) at this, is repaired drip molding with cutting die.Again drip molding is discharged on the stacker, and will pulverizes so that reclaiming in the extrusion process at sheet plastic at the remaining rim charge under the finishing of sealing flange place.

Should believe that in the crumpling process to the hot formed sheet plastic of need, the biaxial orientation of plastics has reduced the penetrablility of baffle element material.

As previously mentioned, in order to make from end flange 16 to bending part 15 baffle element, need carry out " blow moulding " by means of the controollable parison that utilization has a suitable configuration with thicker outside wall portions 12.This manufacturing technology can be accomplished for a person skilled in the art fully.

More than done to specify with regard to the preferred embodiments of the present invention and accompanying drawing, be appreciated that, for a person skilled in the art, can make aforesaid and other forms of concrete improvement and do not break away from the spirit and scope of the present invention, the present invention only is subjected to the restriction of appended claims scope.

Claims

1, a kind of distributing box of the pressurization dispensing that is applicable to goods of do not pack into propellant and goods, it comprises:

A container, this container have bottom, sidewall, top, one be positioned at described top be used to install one can be by the opening of externally actuated valve gear and one in described bottom in order to the closed opening of described container that propellant is packed into;

One can be by externally actuated valve gear, and it passes described open top, in order to the goods of providing and delivering in described container;

Flexible and the extendible baffle element of integral type, its sealing-in is between the sidewall and top of described container, in order to above described baffle element, to form one first district so that goods be communicated with described valve gear maintenance fluid, and below described baffle element one second district of formation so that propellant does not have fluid all the time with described first district is communicated with;

Described baffle element with particular space shape, it have an end seal, one flexible and extendible wall portion and a central piston part, described sealing arrangement, wall portion and piston portion form a space integral structure with enough rigidity so that keep its shape before inserting described container and when inserting;

Described flexible and extendible wall portion, it has an inner wall part and outside wall portions that separates each other and be connected by a bending part;

Extend to the described outside wall portions of bending part from end seal, and the described inner wall part that extends of the inside face from bending part along outside wall portions;

Described central piston part, this central piston partly are connected to and pass the zone that periphery limited by inner wall part, so that sealing and formation integral type baffle element;

Has enough flexible described inner wall part, so that described inner wall part and described central piston part move vertically in container.

2, according to the described distributing box of claim 1, it is characterized in that, described outside wall portions has the precipitous truncated cone that extends to bending part from end seal, the size of described outside wall portions and bending part make baffle element when it inserts container and the inner surface of container form an initial gap; Described inner wall part is to be positioned at rightabout precipitous truncated cone outside wall portions and that extend from bending part.

According to the described distributing box of claim 1, it is characterized in that 3, outside wall portions and inner wall part form an acute angle end at bending part.

According to the described distributing box of claim 1, it is characterized in that 4, described integral type baffle element is made of polyethylene terephthalate (PET).

According to the described distributing box of claim 1, it is characterized in that 5, the size of described inner wall part from the top to the bottom is slightly smaller than described outside wall portions.

According to the described distributing box of claim 1, it is characterized in that 6, the thickness of the described central piston part of at least a portion and rigidity are greater than described inner wall part.

According to the described distributing box of claim 1, it is characterized in that 7, described end seal is one from the outward extending flange of outside wall portions.

According to the described distributing box of claim 1, it is characterized in that 8, the outer periphery of described central piston part is to expose from this inner wall part with the mode of a basic angle of described inner wall part formation.

According to the described distributing box of claim 1, it is characterized in that 9, described baffle element is multiple layer body, internal layer does not have penetrablility to the conveying of goods and propellant, and is outer to not chemically reacting with its goods that contacted or propellant.

According to the described distributing box of claim 2, it is characterized in that 10, described integral type baffle element is made of polyethylene terephthalate (PET).

11, according to the described distributing box of claim 2, it is characterized in that, the baffle element that described integral type baffle element is identical with other can overlap fully basically and gather into folds, and the inside and outside wall of the truncated cone shape of each baffle element portion can gather into folds with the appropriate section cover of other identical baffle elements with therebetween bending part.

According to the described distributing box of claim 2, it is characterized in that 12, described central piston partly is flexible and extendible.

According to the described distributing box of claim 2, it is characterized in that 13, the size of described inner wall part from the top to the bottom is slightly smaller than described outside wall portions.

According to the described distributing box of claim 2, it is characterized in that 14, the thickness of described outside wall portions and rigidity are greater than described inner wall part.

According to the described distributing box of claim 2, it is characterized in that 15, the thickness of the described central piston part of at least a portion and rigidity are greater than described inner wall part.

According to the described distributing box of claim 2, it is characterized in that 16, described end seal is one from the outward extending flange of outside wall portions.

According to the described distributing box of claim 2, it is characterized in that 17, the outer periphery of described central piston part is to become the mode of a basic angle with described inner wall part and to be connected with this inner wall part.

According to the described distributing box of claim 2, it is characterized in that 18, described baffle element is multiple layer body, internal layer does not have penetrablility to the conveying of goods and propellant, and is outer to not chemically reacting with its goods that contacted or propellant.