JP2010527867A - Container integrally molded by blow molding with a hard fitment - Google Patents

Abstract

The present invention is a fluoropolymer container integrally molded by blow molding, having a thin wall flexible bag and one or more hard, thick wall fitments, the bag and one or more hard fitments Is formed from a continuous fluoropolymer material in the same blow molding process and is a fully integrated, fully integrated container.
[Selection] Figure 8

Description

[Cross-reference for related applications]
This application is entitled “Container integrally molded by blow molding with a hard fitment” and is filed by US Provisional Application No. 60 / 931,958, filed May 29, 2007 by Cathy, G. It has a benefit and is incorporated herein by reference.

  Containers that are integrally molded by continuous blow molding and are used for storage, transport and distribution of various liquids, gels, powders and pelletized materials. In particular, the invention of this blow molded container is made using a continuous one-step blow molding process that produces a fully integrated monolithic container, from a thin layer of fluoropolymer film. A sack of thin walls that can be folded, and one or more hard fitments of a fluoropolymer resin that is thicker than a thin fluoropolymer film.

  An assembly of a container made of a fluoropolymer material and used for storing, transporting and distributing various substances and comprising a plurality of components (a plurality of parts), wherein the container is assembled from a plurality of manufacturing processes. Generally known in the industry. One advantage of using containers made of fluoropolymer materials is that they have little or no side effects on the containers when used to store corrosive chemicals. In addition, fluoropolymer containers have mechanical properties including excellent chemical and desired tensile strength, desired compressive strength, wide bending life, excellent wear resistance and strong impact strength. A container made of a fluoropolymer can be used in a temperature range of 400 ° F. to −100 ° F. Fluoropolymer containers are also inherently flame retardant. In addition, fluoropolymer containers have very low liquid, gas and gas permeability.

  These multi-part fluoropolymer containers are assembled using a number of parts: body parts, spout or neck parts, dispensing parts, handle parts, and the like. These parts are mechanically joined to other parts by a post-molding welding process or other mechanical joining process that creates a weld or seam between the parts. In a typical manufacturing method, in a first step, two or more sheets of fluoropolymer film are processed by a welding device so that the film ends are welded together to form a two-dimensional bag, followed by a second step. In step 2, the neck and fitment are welded to the bag.

  The biggest problem with such conventional fluoropolymer containers is the requirement to use a multi-step manufacturing process, where a thin wall bag or body of the container is formed in the first step, And in a second step, a pre-formed relatively thick wall material including a stiff neck, spout, fitment or other sealing or dispensing device is applied or welded to the thin wall bag. Become. In addition, other disadvantages of fluoropolymer containers produced by such multiple steps include increased cost and increased manufacturing time due to assembly and manufacture of multiple parts bodies and spouts, as well as secondary assembly operations. Subsequent contamination, and having welds that tend to leak from the assembly where the two parts are joined together.

  A container integrally molded by this blow molding has a bag and one or more hard fitments, and is formed by a single blow molding process. In addition to welding after molding and various parts of the container, By providing a container having both a thin wall and a thick wall portion formed by a single step blow molding process without mechanical adhesion of the conventional thin wall fluoropolymer container, Overcoming.

  Other disadvantages overcome by the present invention include incomplete welds or seams where various parts are mounted, such as situations where thin wall portions and thick wall portions are mechanically coupled together. Product defects due to tearing are listed. Ordinary blow-molded containers usually have poor visual appearance due to welding operations, and as a result of forming a container as a finished product by mechanically joining separate parts, there is a possibility of a large amount of contamination. The continuous blow molded monolithic bag and one or more hard fitment constructs are fully integrated, non-contaminating, sealed three-dimensional products that gradually move downwards. It has one or more thick wall fitments that change into thin film bags and can be filled with the desired material at any time.

  The inventors have formed a one-step blow molding process, as described below, and integrated thin-walled, flexible fluoropolymer film bags and one or more hard, thick-walled fluoropolymers. A container made of fluoropolymers integrated with a rigid fitment made of polymer resin and integrated by continuous blow molding for the storage, transport and distribution of liquids, gels and pelletized materials Absent.

(Outline of the present invention)
The present invention is a container formed by blow molding, comprising a bag made of a thin-walled flexible film and one or more hard, thick-walled fitments, the bag and one or more hard The fitment is formed by one continuous blow molding, is made of continuous fluoropolymer material raw material, and is a complete, integrally molded, fully integrated three-dimensional container. The containers of the present invention are particularly those used for the storage, transport and distribution of corrosive and / or harmful substances and other substances that may be dangerous or of concern during use or transport. The blow molding process used in the manufacture of the present invention comprises a single three-dimensional container having a thin wall film bag and one or more hard, thick wall fitments, and a thin wall part thick wall part. It is characteristic in that it can be manufactured without post-molding welding, stitching and other mechanical joining or joining operations that join the individual container parts. The blow molded containers of the present invention may also have various sealing and dispensing mechanisms and additional mechanisms formed in a single blow molding process on the bag and / or fitment or stored in the bag. Depending on the material to be used, a hard, thick wall fitment is adapted and used. These additional mechanisms include, for example, valves, fittings that connect tubes, inserts, dip tubes, ornaments, measuring ports, measuring devices, electrical connections, and mixing of contents stored in filling, dispensing, and bags An apparatus formed by integral molding in a bag that promotes the above can be mentioned.

  The present invention is a container integrally molded by continuous blow molding consisting of a fluoropolymer parison having a thin walled flexible bag and one or more hard, thick walled fitments, and corrosive Provides for the storage, transport and distribution of chemicals, hazards and / or hazardous chemicals.

  Furthermore, the present invention is a fluoropolymer container integrally formed by continuous blow molding, comprising a thin wall flexible bag and one or more hard, thick wall fitments, What has a neck and an orifice is provided.

  Furthermore, the present invention is a fluoropolymer container integrally molded by continuous blow molding, having a thin wall flexible bag portion and a hard, thick wall fitment, and welding after molding, or It provides what was formed during one blow molding process without the mechanical connection of the individual parts of the container.

  The present invention is also a container integrally molded by continuous blow molding, comprising a thin wall flexible bag, one or more hard, thick wall fitments, and a seal. All are formed in one blow molding process and the container is sealed to prevent contamination in one or more fitments and thin wall bags.

  Further, the present invention is a container integrally molded by continuous blow molding having a transition region between a thin walled bag and one or more thick walled fitments.

  The present invention is a container integrally molded by continuous blow molding, having a thin-walled flexible bag and one or more hard, thick-walled fitments, formed as a fully integrated container And the container is made of a fluoropolymer material comprising ethylene chlorotrifluoroethylene (E-CTFE).

  Furthermore, the present invention is a container integrally molded by continuous blow molding, wherein one fluoropolymer parison (tubular material) contains ethylene chlorotrifluoroethylene (E-CTFE), and a blow molding apparatus The resin passageway made of a metal material through which the die at the tip of the blow molding device and the molten resin of the blow molding device pass is made of Inconel, Hastelloy, Monel, Duranickel and a mixture thereof And a metal material having a low iron content and a high nickel content. Furthermore, the coating of a metal material having a low iron content and a high nickel content can also be used on the inner surfaces of a pair of molds used in the blow molding apparatus.

  Further, the advantages of the present invention will become apparent upon review of the following description of the specification, claims and attached drawings. Moreover, it can know by implementing the invention described below.

(Drawing)
The accompanying drawings are included in and constitute a part of the specification, the preferred embodiment of the present invention, the general description of the invention described above, the detailed description of the preferred embodiment, and the present invention described below. Other aspects useful for explaining the contents are drawn. These drawings depict only typical aspects of the invention and are not limited to the contents thereof, and the invention will be described with additional specificity and detail using the accompanying drawings, in which: It is to be described and explained.

FIG. 1 is a side view of a preferred embodiment of a container integrally molded by continuous blow molding and having one or more hard fitments. FIG. 2 is an enlarged view of a cross section of a rigid fitment of a container integrally formed by continuous blow molding of the preferred embodiment described in FIG. FIG. 3 is a cross-sectional view of a container integrally molded by continuous blow molding of the preferred embodiment described in FIG. 1 and having a hard fitment. FIG. 4 is a side view of a container integrally molded by continuous blow molding of a preferred embodiment, having one or more fitments, and having a flexible bag portion with a flat bottom. FIG. 5 is a side view of a preferred embodiment of a container integrally molded by continuous blow molding, having one or more fitments, and having a round bottom flexible bag. FIG. 6 is a side view of a preferred embodiment of a container integrally molded by continuous blow molding, having a plurality of hard fitments, all of which are formed in a continuous blow molding process. . FIG. 7 is a side view showing the formation of a tube-shaped molten parison having an open flexible end continuously discharged from a die at the tip of the blow molding apparatus, and is further arranged adjacent to the parison. The movable mold is shown. FIG. 8 is a side view showing a preferred embodiment of a container integrally molded by continuous blow molding having a flexible film bag and one or more hard fitments, and further a seal adjacent to the fitment orifice , And ears of fluoropolymer material bonded to the side of the fitment, both of which are found in a container that is integrally molded by continuous blow molding after being removed from the mold. is there. FIG. 9 is a side view showing a container integrally molded by continuous blow molding of a preferred embodiment, having a flexible film bag and one or more hard fitments, the container is shaped, and the sealing portion is It is removed and the bag is folded so that it can be shipped out. FIG. 10 shows a container integrally molded by continuous blow molding of a preferred embodiment, having a flexible film bag and one or more hard fitments, with a large amount of material stored in the container. The orifice can be sealed by engaging a removable lid formed later with the fitment. 11 is a cross-sectional view of a preferred embodiment flexible film bag described in FIG. 10 and a container lid integrally formed by continuous blow molding with one or more rigid fitments.

  As shown in FIGS. 1 to 6 and 9 to 10, a container 10 integrally molded by blow molding of the present invention includes one or a plurality of hard, thick-walled fitments 12 and thin-walled flexible film bags 14. And is blow molded from a continuous source of fluoropolymer material, formed by one blow molding process, using post-molding welding, stitching, or other mechanical occlusion means Instead, it is a fully integrated container 10 that is integrally molded by blow molding. The thin wall, flexible, film bag 14 further has a continuous wall 16 and a bottom 18. The bottom 18 can be flat as shown in FIGS. 1 and 4 or round as shown in FIGS.

  The one or more fitments 12 of the present invention 10 further have a neck 20 and an orifice 22. The orifice 22 has an outer diameter surface 24 and an inner diameter surface 26. The fitment 12 is blow-molded as a single part simultaneously with the bag portion 14, and the neck 20 is compression-molded in the blow molding process. The bag portion 14 is formed from a fluoropolymer film. The fitment 12 has a thickness in which fluoropolymer resin moldings are stacked in stages as an extension of the bag 14, and the bag 14 and the fitment 12 become one container 10, and the fitment 12 is a bag. Compared to the thickness of 14 relatively thin films, it is a thick wall. The thickness range of the fitment portion 12 between the outer diameter surface 24 and the inner diameter surface 26 is in the range of 0.020 inch to 0.300 inch. The thickness range of the film bag portion 14 is in the range of 0.002 inch to 0.157 inch. The inner diameter surface 26 of the orifice 22 can dispense a valve, a shut-off valve, a dip tube, a spout, an insert, a connection port, or an appropriately adapted and selectively stored material 30 as needed, and A dispensing device that can prevent unintentional discharge of material from the container 10 can be inserted.

  Transition region 28 is depicted in FIGS. 1 and 2 and is the region 28 where the thin wall 16 of the bag 14 contacts and fuses with the thick wall fitment 12 without welding after molding. The transition region 28 is formed in the blow molding process. The thickness of the fitment 12 between the orifice 22 and the transition region 28 is in the range of 0.020 inch to 0.300 inch.

  As shown in FIG. 6, a container 10 integrally molded by blow molding of the present invention has one or a plurality of hard fitments 12. Depending on the specific application, the container 10 integrally molded by blow molding can have an appropriate number of fitments 12, all of which are compression molded in the same blow molding process that forms the bag portion 14. It has been made.

  As shown in FIG. 7, a blow molding process for forming a preferred embodiment of the integrally molded container 10 involves the use of a blow molding device 34 to cool, unmelted fluoropolymer pellets or powder 32 into fluoropolymer pellets or Heat and back pressure are applied to the powder 32 to form a molten resin (not shown), and the molten resin (not shown) is discharged from a die (not shown) at the tip (not shown) of the blow molding device 34. , Including a process of forming a molten resin tube called a parison 36 having an open flexible end. The parison 36 is then held between a pair of molds 38 by engaging the molds 38 horizontally and bringing them into contact with each other, after which air or gas is introduced into the molten parison 36. The mold 38 can be made of Inconel, Hastelloy, Monel or Duranickel, or a mixture thereof. Alternatively, the inner sidewall 44 of the mold 38 can be coated with Inconel, Hastelloy, Monel or Dura nickel, or mixtures thereof, or other low iron content, high nickel content metal materials. By introducing air or gas into the parison 36, the molten discharge 36 is expanded to the side wall 44 of the mold 38 to form the shape of the container 10. The bag portion 14 does not have a defined volume, shape, or surface area, but a particular manufacturing method selects a predetermined mold and predetermined process parameters for manufacturing one or more fitments 12 and bags 14. These values can be determined by selecting. The mold 38 is designed to have the shape of the fitment in the mold 38 so that the appropriate number of all fitments 12 required can be formed. Furthermore, additional mechanisms for accessories, connections, dip tubes, etc. (not shown) included in the bag 14 and / or fitment 12 can also be formed in the blow molding process.

  The type of blow molding process used to form the integrally molded container 10 of the present invention can be discharge blow molding. For this, one-stage continuous discharge or intermittent discharge using a reciprocating screw or an accumulator can be used. Injection blow molding, stretch blow molding, injection stretch blow molding, and discharge stretch blow molding can also be used. In this process, in the blow molding apparatus 34, all metal parts in contact with a resin passage through which a molten resin (not shown) passes have corrosion resistance, and are made of a metal material having a low iron content and a high nickel content. It is characteristic in that it has to be. All the resin passages through which the die (not shown) of the tip portion (not shown) of the blow molding device 34 and the molten resin (not shown) of the blow molding device pass are completely inconel, hastelloy, monel. And Duranickel, and those composed of metallic materials having a low iron content and a high nickel content consisting of a group of these, or having a high nickel content surface coating. Conventional blow molding devices have not been used with corrosion-resistant metal materials with low iron content and high nickel content. The use of low iron and high nickel content metals is necessary to prevent iron corrosion in the molten resin (not shown) and parison 36. Corrosion of iron in the molten resin (not shown) and / or the parison 36 causes contamination due to undesirable metal corrosion slag entering the container 10 integrally formed by blow molding, which is the final product. Another characteristic feature of the blow molding process for forming the integrally molded container 10 by the blow molding of the present invention is that a heater (not shown) used in the blow molding apparatus 34 melts the high-temperature fluoropolymer. It is necessary to have a sufficient output capable of reaching the required temperature. The output of these heaters (not shown) is preferably high output. The heater (not shown) is also insulated by a ceramic jacket (not shown) to maintain the temperature of the blow molding device within the range of 400 to 750 degrees Fahrenheit and overheats the fluoropolymer It is preferable that the fluoropolymer can be maintained in a solution pool (molten resin) (not shown) without any problem. The manufacturing process of the container 10 integrally molded with this high-purity, leak-free fluoropolymer is made of a melted fluoropolymer parison which is passed through a braided hose and filter, coated with stainless steel blow pins, PFA, inside. As with the air used to inflate 36 toward the wall of the mold 38, a highly clean tube, tube connector must be used.

  FIG. 8 shows the container 10 of the present invention which is a container formed by blow molding and integrally molded by blow molding after the mold 38 is removed. As described above, in the blow molding process, the mold 38 converges the melted parison 36 and expands the parison 36 toward the inner wall 44 of the mold 38 in the blow molding process. Air is introduced into the parison 36 from a die (not shown). The upper end 40 of the parison 36 is compression molded in a blow molding process to form a thick wall fitment 12 and forms a seal 42 that seals the orifice 22 of the fitment 12 within a mold 38. In order to melt. The thickness of the sealing portion 42 may be 0.002 inch to 0.157 inch. In the blow molding process, a surplus portion of the compressed fluoropolymer material 48 is formed adjacent to the fitment 12. Also, in the same blow molding process, when the mold 38 converges the parison 36, the bottom 46 of the parison 36 with the open end is melted and closed 19 to seal the bottom 18 of the container 10. . In this way, the container 10 integrally molded by blow molding is expanded by the air that has passed through the filter, and sealed to prevent contamination in the fitment 12 and the bag 14 of the integrally molded container 10. Stopped.

  FIG. 9 shows the container 10 integrally molded by blow molding after completion of the present invention, in which the sealing portion 42 and the remainder 48 compressed with the fluoropolymer material are removed. Further, the container 10 is folded for more efficient packaging and transport to the user.

  FIG. 10 shows that the container 10 integrally molded by the blow molding of the present invention is partially filled, and a removable lid 50 is fitted over the fitment 12 to seal the orifice 22. It shows what can be done. The lid 50 can be formed from a variety of polymers or fluoropolymer materials. In addition, once the sealing portion 42 is removed, the specific substance 30 is put into the container 10 and further sealed with a lid 50 so as to cover the orifice 22, or one or more other various distributions. An instrument (not shown) can be inserted into the orifice 22 and connected to the inner diameter surface 26 or outer diameter surface 24 of the fitment 12. FIG. 11 shows a cross-sectional view of the lid 50.

  The thin wall flexible bag 14 and one or more hard thick wall fitments 12 of the present invention 10 can be formed using a variety of fluoropolymers such as ethylene-chlorotrifluoroethylene (E-CTFE). ), Tetrafluoroethylene (MFA), perfluoroalkoxy (PFA), polyvinylidene fluoride (PVDF), fluorinated ethylene propylene (FEP), polytetrafluoroethylene (PTFE), chlorotrifluoroethylene (CTFE), and These modified products and combinations thereof can be used. Ethylene-chlorotrifluoroethylene (E-CTFE) or perfluoroalkoxy (PFA) provides the optimal chemical and mechanical properties required for many materials storage, transportation and distribution applications, as described above. Can be provided. The physical properties of fluoropolymers other than ethylene-chlorotrifluoroethylene (E-CTFE) and perfluoroalkoxy (PFA) make the blow molded container 10 susceptible to cracking due to stress, so that it is It is unsuitable. E-CTFE, a fluoropolymer, is a robust, light, high purity fluoropolymer material, corrosive chemicals and organic solvents, strong acids, alkalis, peroxides, and semiconductor 1 (SC1) and semiconductors Resistant to various ambient conditions including 2 (SC2) chemicals and aqueous corrosives using wet or dry chlorine, bromine and other halogens. Ethylene-chlorotrifluoroethylene (E-CTFE) and perfluoroalkoxy (PFA) are resistant to temperature environments raised from low temperatures and are not affected by physical or chemical properties. Therefore, it is preferable that the bag and the fitment container 10 integrally molded by blow molding are made of E-CTFE, and then PFA. A specific gravity of E-CTFE (specific gravity of 1.76 or less) is preferred for forming an integrally molded container 10 having a thin wall location 16 and one or more thick wall fitments 12. The use of other fluoropolymers in this application is disadvantageous in that the specific gravity of other fluoropolymers (specific gravity 2.17 or less) is heavy compared to E-CTFE.

  The volume or size of the blow molded container 10 of the present invention can be in the range of 100 cc to 20 liters or more. The combination of the bag 14 and the fitment 12 can be formed as a single layer film, or can be formed as a multilayer film with the fluoropolymer resin or other commercial plastic resin or engineering polymer described above. The blow molded container 10 and one or more rigid fitments 12 can themselves be used for storing, transporting and dispensing materials, or a reusable exterior or clad (not shown). ), Each of which can fractionate the inside of the blow molded container 10 can be used for transportation. When the container 10 is emptied, it can be removed from the exterior or clad (not shown) and discarded and / or recycled. The integrally molded container of the present invention functions as a barrier between the contents of the container and the exterior material or clat (not shown) to improve corrosion, contamination, leakage, handling safety and maintain the quality of the contents. Can fulfill. Since the container 10 is a fluoropolymer structure, the container 10 has a chemical composition of the container, as well as excellent barrier properties that prevent the contents from leaking into the atmosphere. There may be little or no leakage. Depending on the chemical substance put into the container 10, the blow molded container is not suitable for recycling and needs to be discarded after one use.

  In this application, the advantage of the blow molding process to form the integrally molded thin wall bag 14 and one or more thick wall fitments 12 of the present invention 10 is the fully integrated final product container. 10 including a one-step operation that can form a fully three-dimensional bag and fitment composite using E-CTFE material or PFA. Conventionally, there is no description or suggestion of a one-step process using E-CTFE or PFA. This is because it is a high molecular weight resin in the molten state. Another advantage of using E-CTFE or PFA in the blow molding process is that it can be done in a space-saving manner. Furthermore, this blow molding process can allow for a clean room to reduce or prevent cross-contamination that occurs when other component assembly steps are required (multiple step assembly). This blow molding process can further remove seams and welding marks that normally occur when assembling a plurality of steps, so that the container 10 as the final product can be excellent in structural quality. .

  E-CTFE or PFA formed by welding disposable packaging material of corrosive / high-purity chemical substance and film bag part to fitment part by designing container 10 integrally molded by blow molding Compared with a blow molded container product that does not use, the cost can be reduced and the quality can be improved. The integrally blow molded, fully integrated E-CTFE container 10 of the present invention is designed to allow leak-free transport and chemical product packaging for end use. Secondary contamination due to reuse of packaging materials can be prevented. The use of E-CTFE fluoropolymers has the advantage that it can provide the barrier properties of fluoropolymers in the transport and distribution of toxic chemicals as well as the ability to withstand high to low temperatures in applications that are repeatedly frozen and thawed. The use of E-CTFE fluoropolymers in the blow molding process can be cost effective because it can produce large volume products with less space and fewer workers.

  Conventional fluoropolymer containers used to store and transport a variety of materials typically have many preform components: welded preform body, preform pour, preform handle, lid In order to form a finished container, it is necessary to use a process in which many parts are welded or mechanically bonded together. The fully integrated container 10 integrally molded by the blow molding of the present invention overcomes this drawback and provides post-mold bonding, welding or other bonding means required to form conventional fluoropolymer containers. Can be formed by a single blow molding process.

  These and other aspects can provide a fully integrated fluoropolymer container integrally molded by blow molding having a thin walled film bag 14 and a thick walled fitment 12 Can be expected. Furthermore, as described above, other aspects of the invention are apparent. As mentioned above, various improvements in technology, means and materials will be apparent to those skilled in the art. Therefore, the scope of the appended claims and all variations included therein are included.

Claims (61)

A thin wall bag formed from one parison by continuous blow molding,
One or more hard thick wall fitments;
Have
The one or more fitments are formed from the one parison with a thin walled bag, and the one or more fitments are the same blown as the thin walled bag is formed. A container integrally formed by blow molding, characterized by being formed by a molding process.   The container integrally molded by blow molding according to claim 1, wherein the bag portion has a wall made of a flexible fluoropolymer film.   The container integrally molded by blow molding according to claim 2, wherein the fitment further has a neck portion and an orifice.   4. The container integrally molded by blow molding according to claim 3, wherein the orifice further has an inner diameter surface and an outer diameter surface.   5. The container integrally molded by blow molding according to claim 4, wherein the one parison contains a fluoropolymer.   The one or more seals are formed to cover respective orifices contained in one or more hard, thick wall fitments in a continuous blow molding process, and the one or more seals In a continuous blow molding process, the part efficiently seals each orifice contained in one or more hard, thick walled fitments to prevent contamination into the integrally molded container by blow molding. The container integrally molded by blow molding according to claim 5, wherein the container is integrally prevented.   7. The orifice and neck included in the fitment are designed to connect a dispensing device that selectively dispenses a large amount of material stored in a container. A container molded by blow molding.   The seal can be selectively removed to allow the selected material to be placed in an integrally molded container by blow molding, and the dispensing device can then be attached to the fitment and stored in the container. 8. A container integrally formed by blow molding according to claim 7, wherein a large amount of a selected substance can be distributed as needed.   9. The container integrally molded by blow molding according to claim 8, wherein the container is formed without being welded after molding.   The container integrally molded by blow molding according to claim 9, wherein the fluoropolymer includes ethylene-chlorotrifluoroethylene (E-CTFE).   The container integrally molded by blow molding according to claim 9, wherein the fluoropolymer contains perfluoroalkoxy (PFA). A thin wall bag formed from one fluoropolymer parison by continuous blow molding,
One or more hard thick wall fitments;
Have
The one or more fitments are formed from the one parison by continuous blow molding together with the thin walled bag portion, and the one or more fitments are formed of the thin walled bag portion. Formed by the same blow molding process that is formed,
By the blow molding, the one fluoropolymer parison is discharged from a blow molding device, and the die at the tip of the blow molding device is made of a metal material having a low iron content and a high nickel content. An integrally molded container.   The blow material according to claim 12, wherein the metal material having a low iron content and a high nickel content is selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and a mixture thereof. A container molded by molding.   14. The container integrally molded by blow molding according to claim 13, wherein the fitment further has a neck portion and an orifice.   15. The container integrally formed by blow molding according to claim 14, wherein the orifice further has an inner diameter surface and an outer diameter surface.   16. The container integrally molded by blow molding according to claim 15, wherein the one parison contains a fluoropolymer.   The one or more seals are formed to cover respective orifices of one or more hard, thick wall fitments in a continuous blow molding process, the one or more seals being Efficiently seals each orifice contained in one or more hard, thick-walled fitments in a continuous blow molding process to prevent contamination into the integrally molded container by blow molding The container integrally molded by blow molding according to claim 16, wherein the container is integrally formed.   18. The orifice and neck included in the fitment are designed to be connected to a dispensing device that selectively dispenses a large amount of material stored in a container. A container molded by blow molding.   By selectively removing the sealing part, the selected substance can be put into a container integrally formed by blow molding, and then a dispensing device is attached to the fitment, and a large amount stored in the container is stored. 19. The container integrally formed by blow molding according to claim 18, wherein the selected substance can be dispensed as required.   20. The container integrally formed by blow molding according to claim 19, wherein the container is formed without being welded after molding.   21. The blow molding according to claim 20, wherein the fluoropolymer includes ethylene-chlorotrifluoroethylene (E-CTFE), and the metal material having a low iron content and a high nickel content is inconel. Molded container.   The container integrally molded by blow molding according to claim 20, wherein the fluoropolymer contains perfluoroalkoxy (PFA), and the metal material having a low iron content and a high nickel content is Inconel. A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
Have
The one or more hard thick wall fitments further have a neck and an orifice, and the one or more fitments together with the thin wall pouches are continuous blows from the one fluoropolymer parison. The one or more fitments are formed by the same blow molding process as the thin walled bag is formed;
The one fluoropolymer parison is discharged from a blow molding device,
The die at the tip of the blow molding device is made of a metal material having a low iron content and a high nickel content,
The one or more seals are formed to cover respective orifices contained in one or more hard, thick wall fitments in a continuous blow molding process, and the one or more seals The section efficiently seals each orifice included in the one or more hard, thick wall fitments in a continuous blow molding process, the one or more fitments and the thin wall bag A fully integrated container integrally molded by blow molding consisting of a parison of one fluoropolymer characterized in that it prevents contamination of the body.   24. A fully integrated container integrally formed by blow molding of a single fluoropolymer parison according to claim 23, wherein the bag further comprises a flexible fluoropolymer film.   25. The one or more hard, thick walled fitments, further comprising a thick, hard fluoropolymer resin, are integrally molded by blow molding of a single fluoropolymer parison according to claim 24. Fully integrated container.   26. A fully integrated container integrally formed by blow molding of a single fluoropolymer parison according to claim 25, wherein the orifice further has an inner diameter surface and an outer diameter surface.   27. A fully integrated container integrally molded by blow molding comprising one fluoropolymer parison according to claim 26, wherein the container is formed without welding after molding.   28. The metal material according to claim 27, wherein the metal material having a low iron content and a high nickel content is selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and mixtures thereof. A fully integrated container made by blow molding consisting of two fluoropolymer parisons.   29. A fully integrated container integrally molded by blow molding of a single fluoropolymer parison according to claim 28, wherein the fluoropolymer comprises ethylene-chlorotrifluoroethylene (E-CTFE).   29. A fully integrated container integrally molded by blow molding of a single fluoropolymer parison according to claim 28, wherein the fluoropolymer comprises perfluoroalkoxy (PFA). A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
A transition region between the thin wall bag and one or more thick wall fitments;
Have
The thin wall bag formed by the continuous blow molding further has a wall and a bottom, the wall comprising a flexible fluoropolymer film, the bottom being sealed in the blow molding process. In the blow molding process, the opening at the bottom of the melting parison is sandwiched and melted and closed,
The one or more fitments further comprise a hard fluoropolymer resin;
The one or more thick wall fitments include a neck and an orifice, the orifice further having an inner diameter surface and an outer diameter surface;
The one or more seals are formed to cover respective orifices included in one or more hard, thick walled fitments in a continuous blow molding process, the one or more seals The part efficiently seals the orifice contained in the one or more hard, thick walled fitments in a continuous blow molding process to the one or more fitment and thin walled bag parts. A container formed without being welded after being molded integrally by blow molding consisting of a single parison, which is characterized by preventing contamination.   32. The container integrally formed by blow molding comprising one parison according to claim 31, wherein the fluoropolymer includes ethylene-chlorotrifluoroethylene (E-CTFE).   The said fluoropolymer contains perfluoroalkoxy (PFA), The container integrally molded by the blow molding which consists of one parison of Claim 31 characterized by the above-mentioned. A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
A transition region between the thin wall bag and one or more thick wall fitments;
Have
The thin wall bag further has a wall and a bottom, the wall comprising a flexible fluoropolymer film, the bottom being sealed in the blow molding process, and at the bottom of the molten parison. In the blow molding process, the opening is sandwiched and melted and closed.
The one or more fitments further include a hard fluoropolymer resin, the one or more thick wall fitments include a neck and an orifice, and the orifice further includes an inner diameter surface and an outer diameter surface. Have
The one or more seals are formed to cover respective orifices included in one or more hard, thick wall fitments in a continuous blow molding process, the one or more seals Efficiently seals the respective orifices contained in one or more hard thick wall fitments in a continuous blow molding process and contaminates the one or more fitments and thin wall pouches. It is integrally molded by blow molding consisting of one fluoropolymer parison discharged from a blow molding device characterized in that the die at the tip of the blow molding device has a low iron content and high nickel Container made of metal material.   The metal material of low iron content and high nickel content is selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and mixtures thereof. A container molded by blow molding consisting of two parisons.   36. The container integrally formed by blow molding comprising one parison according to claim 35, wherein the fluoropolymer includes ethylene-chlorotrifluoroethylene (E-CTFE).   36. The container integrally formed by blow molding comprising one parison according to claim 35, wherein the fluoropolymer includes perfluoroalkoxy (PFA). A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
A transition region between the thin wall bag and one or more thick wall fitments;
Have
The thin wall bag further has a wall and a bottom, the wall comprising a flexible fluoropolymer film, the bottom being sealed in the blow molding process, and at the bottom of the molten parison. In the blow molding process, the opening is sandwiched and melted and closed.
The one or more fitments further include a hard fluoropolymer resin, the one or more thick wall fitments include a neck and an orifice, and the orifice further includes an inner diameter surface and an outer diameter surface. Have
The one or more seals are formed to cover respective orifices included in one or more hard, thick wall fitments in a continuous blow molding process, the one or more seals Efficiently seals the respective orifices contained in the one or more hard thick wall fitments in a continuous blow molding process, into the one or more fitments and the thin wall pouches. To prevent contamination,
The one fluoropolymer parison is discharged from a blow molding device, and a resin passageway made of all metal materials through which the die at the tip of the blow molding device and the molten resin of the blow molding device pass, A container integrally formed by blow molding consisting of one parison characterized by containing a metal material having a low iron content and a high nickel content.   The metal material having a low iron content and a high nickel content is selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and mixtures thereof. A container molded by blow molding consisting of two parisons.   40. The container integrally formed by blow molding comprising one parison according to claim 39, wherein the fluoropolymer includes ethylene-chlorotrifluoroethylene (E-CTFE).   40. The container integrally formed by blow molding comprising one parison according to claim 39, wherein the fluoropolymer includes perfluoroalkoxy (PFA). A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
A transition region between the thin wall bag and one or more thick wall fitments;
Have
The thin wall bag further has a wall and a bottom, the wall comprising a flexible fluoropolymer film, the bottom being sealed in the blow molding process, and at the bottom of the molten parison. In the blow molding process, the opening is sandwiched and melted and closed.
The one or more fitments further include a hard fluoropolymer resin, the one or more thick wall fitments include a neck and an orifice, and the orifice further includes an inner diameter surface and an outer diameter surface. Have
The one or more seals are formed to cover respective orifices included in one or more hard, thick wall fitments in a continuous blow molding process, the one or more seals Efficiently seals the respective orifices contained in one or more hard thick wall fitments in a continuous blow molding process and contaminates the one or more fitments and thin wall pouches. Is to prevent
The one fluoropolymer parison contains ethylene-chlorotrifluoroethylene (E-CTFE) and is discharged from a blow molding device, and a die at the tip of the blow molding device has a low iron content, a high iron content, One of the resin passages made of a metal material with a nickel content and made of all the metal materials through which the molten resin of the blow molding device passes contains a metal material with a low iron content and a high nickel content. A container molded by blow molding consisting of two parisons.   The metal material having a low iron content and a high nickel content is selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and mixtures thereof. A container molded by blow molding consisting of two parisons.   43. The container integrally molded by blow molding comprising one parison according to claim 42, wherein the metal material having a low iron content and a high nickel content is Inconel.   43. The container integrally molded by blow molding comprising one parison according to claim 42, wherein the low iron content metal material is Hastelloy.   43. The container integrally formed by blow molding comprising one parison according to claim 42, wherein the metal material having a low iron content is monel.   43. The container integrally molded by blow molding comprising one parison according to claim 42, wherein the metal material having a low iron content is duranickel. A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
A transition region between the thin wall bag and one or more thick wall fitments;
Have
The thin wall bag further has a wall and a bottom, the wall comprising a flexible fluoropolymer film, the bottom being sealed in the blow molding process, and at the bottom of the molten parison. In the blow molding layer process, the opening is sandwiched and melted and closed.
The one or more fitments further include a hard fluoropolymer resin, the one or more thick wall fitments include a neck and an orifice, and the orifice further includes an inner diameter surface and an outer diameter surface. Have
The one or more seals are formed to cover respective orifices included in one or more hard, thick wall fitments in a continuous blow molding process, the one or more seals Efficiently seals the respective orifices contained in one or more hard thick wall fitments in a continuous blow molding process and contaminates the one or more fitments and thin wall pouches. Is to prevent
The one fluoropolymer parison contains perfluoroalkoxy (PFA) and is discharged from a blow molding device, and the die at the tip of the blow molding device and all the molten resin of the blow molding device pass therethrough. A container integrally formed by blow molding made of one parison, wherein the resin passage made of a metal material contains a metal material having a low iron content and a high nickel content.   49. The metal material according to claim 48, wherein the metal material having a low iron content and a high nickel content is selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and mixtures thereof. A container molded by blow molding consisting of two parisons.   50. The container integrally molded by blow molding comprising one parison according to claim 49, wherein the metal material having a low iron content and a high nickel content is Inconel.   50. The container integrally molded by blow molding comprising one parison according to claim 49, wherein the metal material having a low iron content and a high nickel content is Hastelloy.   50. The container integrally molded by blow molding comprising one parison according to claim 49, wherein the metal material having a low iron content and a high nickel content is Monel.   50. The container integrally molded by blow molding comprising one parison according to claim 49, wherein the metal material having a low iron content and a high nickel content is duranickel. A thin-walled bag formed by continuous blow molding;
One or more hard thick wall fitments;
One or more sealing parts;
A transition region between the thin wall bag and one or more thick wall fitments;
Have
The thin wall bag further comprises a wall and a bottom, the wall comprising a flexible fluoropolymer film, the bottom being sealed in a blow molding process, and an opening at the bottom of the molten parison. In the blow molding process, the part is sandwiched and closed by a pair of molds of a blow molding device,
The one or more fitments further include a hard fluoropolymer resin, the one or more thick wall fitments include a neck and an orifice, and the orifice further includes an inner diameter surface and an outer diameter surface. Have
The one or more seals are formed to cover respective orifices included in one or more hard, thick wall fitments in a continuous blow molding process, the one or more seals Efficiently seals the respective orifices contained in one or more hard thick wall fitments in a continuous blow molding process and contaminates the one or more fitments and thin wall pouches. Is to prevent
The one fluoropolymer parison is discharged from a blow molding device, and a resin passageway made of all metal materials through which the die at the tip of the blow molding device and the molten resin of the blow molding device pass, A container integrally formed by blow molding consisting of one parison characterized by containing a metal material having a low iron content and a high nickel content.   55. The blow molding comprising a single parison according to claim 54, wherein the pair of molds is made of a material selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and a mixture thereof. A container that is molded in one piece.   55. The container integrally molded by blow molding comprising one parison according to claim 54, wherein the pair of molds is coated with a metal material having a low iron content and a high nickel content.   55. The container integrally molded by blow molding comprising one parison according to claim 54, wherein the metal material having a low iron content and a high nickel content is Inconel.   55. The container integrally molded by blow molding comprising one parison according to claim 54, wherein the metal material having a low iron content and a high nickel content is Hastelloy.   55. The container integrally molded by blow molding comprising one parison according to claim 54, wherein the metal material having a low iron content and a high nickel content is Monel.   55. The container integrally molded by blow molding comprising one parison according to claim 54, wherein the metal material having a low iron content and a high nickel content is duranickel.   The pair of molds is coated with a metal material having a low iron content and a high nickel content selected from the group consisting of Inconel, Hastelloy, Monel and Duranickel, and mixtures thereof. 57. A container integrally formed by blow molding comprising one parison according to claim 56.

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