JP6345039B2 - Airtight material and manufacturing method thereof - Google Patents

Description

  The present invention relates to an airtight material for securing airtightness and / or watertightness to joinery, ships, elevators, and the like, and a method for manufacturing the same.

  Airtight materials such as tight materials and seal materials intervene in the gap between the shoji and frame body, such as a sliding sash and a fitting sash, or in the summoning of the shoji. The sash is airtight and / or watertight. The improvement of the nature is aimed at. Among the airtight materials, the seal material has a base portion fixed to a holder protruding from the inner peripheral side of the vertical frame and upper and lower frames of the frame body, and a seal piece protruding from the base portion to the outside of the holder. Part of the tight material used for door stop is also fixed to the holder. Such an airtight material for a sash is arranged throughout the place where airtightness and watertightness are required, such as summoning of sliding paper sliding doors and a door-cart housing part.

  As such an airtight material for a sash, Patent Literature 1 discloses an airtight material for a sash having fire resistance in addition to airtightness and watertightness. This sash hermetic material is a sash hermetic material that is attached to a sash frame or a shoji, and includes a base portion that fits into the sash holder and a protruding portion that projects out of the holder from the base portion. It is made of an airtight material molding resin having wear resistance and elasticity, and the projecting portion is made of an airtight material molding resin containing a thermal expansion fireproof component, and the base portion and the projecting portion are integrally molded. .

Patent 5481420

  The tip of the hermetic material is a portion that prevents leakage of gas, liquid, light, and / or sound, or is the most in contact with the sash member, and therefore further physical properties such as slidability are required. However, in the airtight material for sashes of Patent Document 1, since the protruding portion of the airtight material contains a thermal expansion refractory component, there is a problem that such physical properties at the front end portion of the airtight material are insufficient.

  The objective of this invention is providing the airtight material which is excellent in airtightness and / or watertightness, and fire resistance, and the front-end | tip part of an airtight material satisfy | fills slidability.

  (1) An airtight material attached to a structure includes a base portion that is fitted into a housing portion of the structure body, and a protruding portion that protrudes from the base portion to the outside of the housing portion, and the base portion is an airtight material molding resin. The projecting part is composed of a first part containing a heat-expanding fire-resistant component in an air-tight molding resin and a second part containing a gas-tight molding resin but not containing a heat-expanding fire-resistant component. An airtight material characterized in that the part is integrally molded.

  (2) The first portion and the second portion of the protruding portion are continuously connected at the tip end of the first portion and the base end of the second portion, and the second portion constitutes the tip end of the protruding portion. Airtight material.

  (3) The width of the first portion of the protruding portion is narrower than the width of the base portion, and the width of the second portion of the protruding portion is the same as or narrower than the width of the first portion, according to (1) or (2) Airtight material.

  According to the present invention, by providing the tip portion that does not contain the thermal expansion refractory component, the slidability is improved while providing the air tightness and / or water tightness and fire resistance of the airtight material.

(A) It is a perspective view of the sealing material as an airtight material of one embodiment of the present invention, and (b) is a perspective view of a tight material as an airtight material of another embodiment. It is a longitudinal cross-sectional view of the sash to which the airtight material of this invention was applied. It is a cross-sectional view of the sash to which the airtight material of this invention was applied. It is the schematic which shows the manufacture procedure of the airtight material of this invention.

  In this specification, “airtight molding resin” refers to a thermoplastic resin, thermosetting resin, elastomer, rubber, or a combination thereof generally used for sealing materials and tight materials. Examples include fluororesin, polyphenylene ether, modified polyphenylene ether, polyphenylene sulfide, polycarbonate, polyetherimide, polyetheretherketone, polyarylate, polyamide, polyamideimide, polybutadiene, polyimide, acrylic resin, polyacetal, polyamide, polyethylene, polyethylene Examples include terephthalate, polycarbonate, polyester, polystyrene, polyphenylene sulfide, polybutylene terephthalate, polypropylene, polyvinyl chloride, ABS resin, and AS resin. Examples of curable resins include epoxy resins, phenol resins, melamine resins, urea resins, unsaturated polyester resins, alkyd resins, polyurethanes, thermosetting polyimides, etc. Examples of elastomers include olefin elastomers and styrene elastomers. , Ester elastomers, amide elastomers, vinyl chloride elastomers, etc. Examples of rubbers include natural rubber, silicone rubber, styrene / butadiene rubber, isoprene rubber, butadiene rubber, chloroprene rubber, acrylonitrile / butadiene rubber, Examples thereof include nitrile butadiene rubber, butyl rubber, ethylene / propylene rubber, ethylene / propylene / diene rubber, urethane rubber, silicone rubber, and fluorine rubber. These hermetic molding resins are usually non-thermally expandable. In other words, it does not expand due to heat during a fire. The “thermal expansion refractory component” includes all those having a property of expanding due to heat at the time of fire, and an example thereof includes expanded graphite. Thermally expandable graphite is a conventionally known substance, and powders such as natural scaly graphite, pyrolytic graphite, and quiche graphite are mixed with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, and concentrated nitric acid, perchloric acid, and perchlorine. This is a crystalline compound in which a graphite intercalation compound is produced by treatment with a strong oxidizing agent such as acid salt, permanganate, dichromate, hydrogen peroxide, etc., and maintains a layered structure of carbon. The thermally expandable graphite may be obtained by neutralizing thermally expandable graphite obtained by acid treatment with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.

 The “inorganic filler” is a conventionally known substance and is not particularly limited. For example, silica, diatomaceous earth, alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrite , Calcium hydroxide, magnesium hydroxide, aluminum hydroxide, basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dawn knight, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, calcium silicate , Talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, imogolite, sericite, glass fiber, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon Rune, charcoal powder, various metal powders, potassium titanate, magnesium sulfate “MOS” (trade name), lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag Examples include fiber, fly ash, and dewatered sludge.

  “Sealed”, “airtight” and “watertight” refer to the fact that gas and / or fluid intrusion can be significantly prevented as compared with the case where no airtight material is provided, even if 100% is not completely sealed.

  “Aperture” refers to an arbitrary space, and “gap” refers to a space generated between two members or portions facing each other in the opening.

  Hereinafter, an embodiment of an airtight material of the present invention will be described with reference to the drawings. FIG. 1A shows a sealing material 1 as an airtight material according to an embodiment of the present invention. The sealing material 1 includes a base 1a and a protruding portion 1b protruding from the base 1a. Includes a hermetic molding resin, and the projecting portion 1b includes a first portion 1c containing a heat-expandable refractory component in the hermetic molding resin and a second portion 1d containing no heat-expandable refractory component in the hermetic molding resin. The base portion 1a and the protruding portion 1b are integrally formed. The width of the first portion 1c of the protruding portion 1b is narrower and constant than the width of the base portion 1a, and the width of the base end of the second portion 1d of the protruding portion 1b is the same as the width of the first portion 1c. The portion 1c and the second portion 1d are continuously connected at the distal end of the first portion 1c and the proximal end of the second portion 1d, and the width of the second portion 1d is tapered toward the distal end.

  The first portion 1c and the second portion 1d of the protrusion 1b may further include the same or different inorganic fillers, and the ratios of the components of the airtight molding resin, the thermally expandable refractory component, and the inorganic filler are not particularly limited. However, for example, 10 to 300 parts by weight of the airtight material molding resin and 30 to 500 parts by weight of the inorganic filler with respect to 100 parts by weight of the airtight material molding resin.

  In addition, the base 1a, the first portion 1c of the protruding portion 1b, and the second portion 1d of the protruding portion 1b are not limited to phenolic, amine-based, sulfur-based antioxidants, or the like, as long as their physical properties are not impaired. Harm prevention agents, antistatic agents, stabilizers, crosslinking agents, lubricants, softeners, pigments and the like may be added.

   In the present embodiment, the sealing material 1 is disposed over the entire length in the longitudinal direction of the lower heel 39 (see FIG. 2) of the sash outer obstacle 35a and inner obstacle 35b. In this embodiment, the airtight material molding resin of the base portion 1a, the airtight material molding resin of the first portion 1c of the protruding portion 1b, and the airtight material molding resin of the second portion 1d of the protruding portion 1b are the same. Adhesion for is increased. In the present embodiment, the second portion 1d that does not contain the heat-expandable refractory component in the airtight molding resin is made of a material that is more slidable than the first portion 1c.

    FIG.1 (b) is the tight material 2 as an airtight material of another embodiment of this invention, and the tight material 2 is provided with the base 2a and the protrusion part 2b which protrudes from the base 2a, and the base 2a. Contains a hermetic molding resin, and the projecting portion 2b includes a first portion 2c containing a heat-expandable refractory component in the hermetic molding resin and a second portion not containing a heat-expandable refractory component in the hermetic molding resin. 2d, and the base 2a and the protrusion 2b are integrally formed. The width of the first portion 2c of the protrusion 2b is narrower and constant than the width of the base 2a, and the width of the base end of the second portion 2d of the protrusion 2b is the same as the width of the first portion 2c. 2c and the second part 2d are connected continuously at the tip of the first part 2c and the base of the second part 2d, and the tip of the first part 2c and the tip of the second part 2d are rounded into a substantially semi-cylindrical shape. In addition, the adhesion is increased and the slidability of the second portion 2d is enhanced.

  In the present embodiment, the tight material 2 is disposed over the entire length in the longitudinal direction of the vertical rod 36 on the door-to-door side of the shingles 35a and 35b in the sash (see FIG. 3). In this embodiment, the airtight material molding resin of the base portion 2a, the airtight material molding resin of the first portion 2c of the protruding portion 2b, and the airtight material molding resin of the second portion 2d of the protruding portion 2b are the same. Adhesion for is increased.

  The sealing material 1 and the tight material 2 which are the airtight materials of the above-described embodiments can be applied to the sliding window sash. Referring to FIG. 2, the sliding window 30 is composed of an outer frame 35 a as a movable member and an inner frame as a movable member in a frame 31 constituted by an upper frame 32, a lower frame 33, and left and right vertical frames 34. 35b, and the external obstacle 35a and the internal obstacle 35b move left and right along the rails 32a and 33a provided on the upper frame 32 and the lower frame 33 so as to open and close in a sliding manner within the frame 31. It is configured. An accommodating portion 37a is provided at the lower ends of the inner and outer shojis 35a and 35b that face each other to define and separate the door storage portions 38a, and the sealing material 1 is held in the accommodating portions 37a. Thereby, the sealing material 1 hold | maintained at the accommodating part 37a provided in the lower end which opposes and forms the doorwheel accommodating part 38a of the inner and outer shoji 35a, 35b below is the clearance gap between the frame 31 and the outer shoji 35a. Alternatively, the blowing of wind and rainwater that is blown from the gap between the door cart storage portion 38a and the door cart 38 is restricted. In addition, in the event of a fire, the intrusion of fire and smoke from the gap between the frame 31 and the outer panel 35a or the gap between the door cart storage portion 38a and the door wheel 38 is reduced or prevented. As described above, it is possible to maintain the slidability while satisfying both the characteristics required for the airtight material (eg, airtightness / watertightness) and fireproof performance. Further, as shown in FIG. 3, the summing side between the upper frame 32 and the upper collar 37 of the inner and outer obstacles 35a and 35b, between the lower frame 33 and the lower collar 39 of the inner and outer obstacles 35a and 35b, and the calling side of the inner and outer obstacles 35a and 35b. Tight materials 2, 3, 4, and 5 are fitted in the accommodating portions 37b, 37c, 37d, and 37e, respectively, between the vertical rods 36 and the places where the door tips of the inner and outer shojis 35a and 35b come into contact with the vertical frame 34. It is attached in the combined state. Thereby, when the inner and outer obstacles 35a and 35b are closed, the inner and outer obstacles 35a and 35b come into contact with each other through the tight material 4, and the frame 31 and the inner and outer obstacles 35a and 35b have the tight materials 2, 3, and 5 interposed therebetween. Because of the contact, the opening or gap between the inner and outer obstacles 35a and 35b or between the frame 31 and the inner and outer obstacles 35a and 35b is sealed, and the airtightness and watertightness of the sash are ensured. Also, in the event of a fire, fire and smoke intrusion from the opening or gap between the inner and outer shoji 35a and 35b or between the frame 31 and the inner and outer shoji 35a and 35b is reduced or prevented, and the fire resistance of the sliding window is greatly improved. The As described above, it is possible to maintain the slidability while satisfying both the characteristics required for the airtight material (eg, airtightness / watertightness) and fireproof performance.

  The tight materials 2, 3, 4, and 5 may have the same configuration as that of the sealing material 1 of the first embodiment of the present invention, but the first embodiment is included as long as it is included in the range of the hermetic material of the present invention. You may have the structure changed from the sealing material 1 of a form. The accommodating portions 37b, 37c, 37d, and 37e may have the same configuration as the accommodating portion 37a of the first embodiment, but as long as the airtight member of the present invention is attached, the accommodating portion 37a of the first embodiment. You may have the structure changed from.

  Next, the manufacturing method of the above-mentioned sealing material 1 and tight materials 2, 3, 4, and 5 will be described. The hermetic material of the present invention is manufactured by a known resin composite manufacturing method, and is not particularly limited. For example, the sealing material 1 and the tight materials 2, 3, 4, and 5 are molded by a coextrusion molding method. . Specifically, the sealing material 1 will be described as follows. As shown in FIG. 4, a coextrusion molding machine 21 is used, and among the three tanks 22, 23, 24 arranged in the coextrusion molding machine 21. One tank 22 is filled with a hermetic molding resin constituting the sealing material 1, and the other tank 23 contains expanded graphite in the hermetic molding resin filled in the tank 22 described above. Filled with resin. The blending ratio is set in the range of 20 to 300 parts by weight of expanded graphite with respect to the resin component 100. Further, another tank 24 is filled with a raw material resin that does not contain expanded graphite in the solvent of the airtight molding resin.

  The co-extrusion molding machine 21 is provided with a mold 25 corresponding to obtaining a molded product P having an arbitrary shape and a cross-sectional size, and the raw resin is simultaneously sent from the tanks 22, 23, 24 to the mold 25. Thus, a molded product P in which different types or the same types of resins are integrally molded is molded. And the molded product P sent out from the coextrusion molding machine 21 is continuously drawn out by the take-up machine 26, and is transferred to a cooling process. In the cooling step, the molded product P extruded from the coextrusion molding machine 21 is cooled through a pool 27 filled with water, thereby ensuring the hardness of the molded product P. And in the processing machine 28 which performs a cutting process and a bending process (processing process), since the molding P is continuously supplied from the coextrusion molding machine 21, it shape | molds corresponding to the application location of the sealing material 1 in a sash. The object P is cut into a predetermined dimension, or a bending process corresponding to a rounded portion or the like of a special frame is performed. If the molded product P obtained through each of the above steps is of the present embodiment, a base 1a containing an airtight molding resin and a protrusion 1b made of a mixed component containing expanded graphite in the hermetic molding resin. The first portion 1c and the second portion 1d of the projecting portion 1b are integrally formed with the sealing material 1, the base portion 2a, the first portion 2c of the projecting portion 2b, and the second portion 2d of the projecting portion 2b. The molded tight material 2 and the tight materials 3 to 5 are obtained.

   Although the present invention has been described with respect to the above-described embodiment, the embodiment is not limited to the above-described embodiment, and may be embodied as follows, for example.

  -The airtight material molding resin of the base portions 1a, 2a, the airtight material molding resin of the first portions 1c, 2c of the protruding portions 1b, 2b, and the airtight material molding resin of the second portions 1d, 2d of the protruding portions 1b, 2b, The two may be the same, or they may all be different types.

  -The 2nd parts 1d and 2d which do not contain the heat-expandable refractory component of the protrusion parts 1b and 2b may have the further outstanding characteristic in addition to slidability. For example, when the second portions 1d and 2d are made of a material having a material Tg lower than that of the first portions 1c and 2c and have a low temperature recovery property, it is possible to maintain airtightness in a cold region.

  -The airtight material of this invention is not restricted to the said embodiment, If it is a location in which the accommodating part 37a, 37b, 37c, 37d, 37e of the airtight material in a sash is provided, it can apply to the thing of various shapes. it can. Moreover, although the said embodiment demonstrated what applied the airtight material of this invention to the aluminum sash, it is also possible to attach to the aluminum frame material of the resin sash, or the aluminum collar.

  -The airtight material of the present invention is not limited to sashes, and may be used for structures such as windows, shojis, doors (that is, doors), doors, brans, and bams; ships; and structures such as elevators. Good.

  -Regarding the co-extrusion molding machine 21, the pool 27, and the processing machine 28 used in the method for producing an airtight material of the present invention, any other means can be used as long as it can process the molded product P into a desired shape and size. It is not limited to the form.

  Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited thereto.

Experiment 1
The airtight material shown in FIG. 1 was produced and examined for fire resistance, slidability and airtightness. Vinyl chloride (hardness 80) is manufactured by Mitsubishi Chemical Corporation, refractory resin composition is manufactured according to the description of the applicant's patent 5352017, chlorinated vinyl chloride resin composition for extrusion molding, slidable vinyl chloride (SE864A) is The one manufactured by Shin-Etsu Polymer Co., Ltd. was used.

  As for fire resistance, it was confirmed whether there was volume expansion by heating at 600 ° C. for 30 minutes. The slidability conformed to JIS A 1519. Airtightness conformed to JIS A 1516.

 As a result, as in Example 1, only when the first portion 1c of the projecting portion 1b is formed of a refractory resin composition and the second portion 1d of the projecting portion 1b is formed of slidable vinyl chloride. It was shown that the property, fire resistance, and slidability are good.

Experiment 2
As in Experiment 1 above, the airtight material shown in FIG. 2 was prepared and examined for fire resistance, slidability and airtightness. The materials of the member numbers 2a, 2c, and 2d in Example 2, Comparative Example 3, and Comparative Example 4 are the same as the materials of the member numbers 1a, 1c, and 1d in Example 1, Comparative Example 1, and Comparative Example 2, respectively.

  As a result, only in the case where the first portion 1c of the projecting portion 1b is formed of a refractory resin composition and the second portion 1d of the projecting portion 1b is formed of slidable vinyl chloride as in Example 2, the airtightness is increased. It was shown that the property, fire resistance, and slidability are good.

Claims (4)

Ri airtight material der attached to a structure having a movable member, said movable member, and the separate member from the movable member in the structure, airtight material der used so as to contact via a gas-tight material What
The airtight member is fitted in the housing portion of the structure and is housed in the housing portion of the structure;
A projecting portion projecting outward from the housing portion from the base portion,
The base contains an airtight molding resin and does not contain a thermally expandable refractory component,
The projecting portion is composed of a first part containing a thermally expanded refractory component in the airtight material molding resin and a second part containing the hermetic material molded resin but not containing a thermally expanded refractory component,
The first part and the second part of the protrusion are continuously connected at the tip of the first part and the base of the second part, the second part constitutes the tip of the protrusion, and the second part and the base are Apart,
An airtight material characterized in that the base and the protrusion are integrally formed. Ri airtight material der attached to a structure having a movable member, said movable member, and the separate member from the movable member in the structure, airtight material der used so as to contact via a gas-tight material What
The airtight member is fitted in the housing portion of the structure and is housed in the housing portion of the structure;
A projecting portion projecting outward from the housing portion from the base portion,
The base contains an airtight molding resin and does not contain a thermally expandable refractory component,
The projecting portion is composed of a first part containing a thermally expanded refractory component in the airtight material molding resin and a second part containing the hermetic material molded resin but not containing a thermally expanded refractory component,
The first part and the second part of the protrusion are continuously connected at the tip of the first part and the base of the second part, the second part constitutes the tip of the protrusion,
The surface of the first portion of the protrusion is exposed;
An airtight material characterized in that the base and the protrusion are integrally formed.   The airtight material according to claim 1 or 2, wherein the second portion of the protruding portion is more slidable than the first portion of the protruding portion.   The hermetic material according to any one of claims 1 to 3, wherein the width of the first portion of the protruding portion is narrower than the width of the base portion, and the width of the second portion of the protruding portion is equal to or smaller than the width of the first portion. .