JPH11198238A - End-processed continuous member made of thermoplastic resin reinforced with continuous fiber, and net obtained therefrom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide end-processed continuous members and a net obtained therefrom, capable of not only providing excellent tensile characteristics and size stability and eliminating the looseness, etc., of the net under a high load or due to temperature change, but also shortening a working period because in-place workability, etc., are also excellent. SOLUTION: This end-processed continuous member is a covered continuous member formed of a fiber-containing resin in which continuous reinforcing fibers are impregnated with a thermoplastic resin, and which is covered with a thermoplastic resin layer, and a holding part is provided which is formed by folding each of both ends of the covered continuous member back in a ring shape. Further, a net is formed by combining two or more of the end-processed continuous members in the form of a lattice and thermally welding them at their intersecting points. Alternatively, the end-processed continuous members are used as longitudinal materials 4, while the covered continuous members or their fragments are used as lateral materials 5, and faces positioned in the direction of each thickness of both the longitudinal materials 4 and the lateral materials 5 are brought into contact with one another to be arranged in the form of a lattice, whereby there contacting faces may also be thermally welded. Furthermore, in this net, at least two end-processed continuous members may be optionally combined so as to intersect with one another, and at least one point of intersection may be thermally welded together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end-processed elongated body made of a continuous fiber reinforced thermoplastic resin and a net obtained therefrom.

[0002]

2. Description of the Related Art With the spread of portable telephones, there is a concern that radio interference caused by metal fences has occurred, and resin nets have been receiving attention. Fences made of net or glass long fiber mat reinforced resin using stretched PET (JP-A-61-128)
No. 599) has been invented, but the former has a problem that the net is loose under a high temperature such as midsummer, and the latter has a drawback that the net is not loose but the use strength is inferior. I have. In the case of the latter, there is a method of increasing the number of single yarns of the net in order to improve the strength, or increasing the glass content in the single yarn. At present, single yarns that are expensive or have high glass content are extremely difficult to manufacture.

Further, a glass continuous fiber reinforced net is disclosed in Japanese Patent Application Laid-Open No. 7-173824, which is obtained by perforating a glass continuous fiber reinforced sheet with a plurality of holes, and which is manufactured by the method. It was difficult and it was not compatible with fence nets, so it could not be mounted on pillars or frames. Although it has been proposed in Japanese Patent Application No. 09-157615, there was a problem in that when used as a net for fences, there was a problem in attaching to a support or a frame, and it took a long time for construction.

[0004]

The present invention is excellent in tensile properties and dimensional stability, not only eliminates loosening of the net due to high load or temperature change, but also has excellent on-site workability and the like, and shortens the construction period. It is an object of the present invention to provide a continuous fiber reinforced thermoplastic resin end-processed elongated body capable of performing the above and a continuous fiber reinforced thermoplastic resin net using the same.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies to achieve the above object, and as a result, a continuous fiber reinforced thermoplastic resin long body whose both ends are looped back is used as a fence member. It has been found that the object can be achieved by using the same, and the present invention has been achieved. That is, the present invention has the following configurations. (1) A coated long body obtained by coating a thermoplastic resin layer on a fiber-containing resin obtained by impregnating a continuous reinforcing fiber with a thermoplastic resin, wherein both ends of the coated long body are folded in a ring shape. An end-processed elongated body made of a continuous fiber-reinforced thermoplastic resin, comprising a holding portion comprising: (2) A continuous fiber reinforced thermoplastic resin net characterized in that two or more continuous fiber reinforced thermoplastic resin end-processed elongated bodies are combined in a lattice and the intersections are heat-welded. (3) The continuous fiber-reinforced thermoplastic resin end-processed elongated body is used as a vertical member, and the coated long member or a fragment thereof is used as a horizontal member, and the vertical member and the horizontal member are brought into contact with each other in the thickness direction. A continuous fiber reinforced thermoplastic resin net, wherein the contact surfaces are heat-welded. (4) Two or more of the continuous fiber-reinforced thermoplastic resin end-processed elongated bodies are combined so as to intersect alternately, and 1
A continuous fiber reinforced thermoplastic resin net characterized in that the above intersections are heat welded.

Hereinafter, the invention of the above (1) will be referred to as the present invention (1),
The invention of the above (2) is called the present invention (2), the invention of the above (3) is called the present invention (3), and the invention of the above (4) is called the present invention (4). A feature of the present invention (1) is that a coated long body obtained by coating a thermoplastic resin layer on a fiber-containing resin obtained by impregnating a continuous reinforcing fiber with a thermoplastic resin has both ends folded in a ring shape. The present inventions (3) and (4) use the present invention (1) as a component of a net.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention (1) will be described in detail below. The continuous fiber-reinforced thermoplastic resin end-molded long body of the present invention (1) is provided with holding portions at both ends of the coated long body. The coated long body is obtained by coating a fiber-containing resin with a thermoplastic resin layer. The fiber-containing resin,
A continuous reinforcing fiber is impregnated with a thermoplastic resin. The holding portion is formed by folding both ends of the coated elongated body into a ring shape.

The shape of the present invention (1) is a long body. Here, the elongate body is a generic term meaning that the length in the longitudinal direction is extremely long with respect to the length in the width direction. For example, the cross section in the width direction is an arbitrary shape such as a rectangle, a circle, an ellipse, and a triangle. Shape. For example, FIG. 6 shows an example in which the cross section in the width direction is rectangular. The coated long body 13 is obtained by coating a fiber-containing resin 11 composed of a reinforcing fiber 9 and a thermoplastic resin 10 with a thermoplastic resin layer 12.

The shape of the holding portions provided at both ends of the present invention (1) is formed by folding back in a ring shape. The term “circularly folded” may be a closed-ring structure or an open-ring structure, and any shape may be used so long as it can be passed through at least a support or a frame material and can hold the entire elongated body. The structure may be used. In the case of a ring-opened structure, the holding portion may have appropriate elasticity so that the present invention (1) can be easily attached and detached. In the case of a ring-closed structure, the folded portion can be welded to form a strong ring structure. For example,
As a structure of the holding portion, a structure as shown in FIG. 1 is exemplified. FIG. 1 shows the elongated body in a linear shape, and shows only one end thereof. FIG. 1 shows that the holding portion 1 has a ring-opened structure.
FIG. 1 (c) can be illustrated as an example in which (a) and (b) have a closed ring structure. In FIG. 2 (b), the opening 2 of the holding portion can be widened at the time of use and mounted on a column or the like. FIG. 3C shows an example in which a welding portion 3 is provided. This welded part is welded after mechanically turning the long body,
The folded contact portion to be welded is at least 15 mm
It is preferred that If the contact portion is shorter than 10 mm, the strength of the welded portion may be insufficient and the weld may be damaged.

The elongated body of the present invention (1) can also function as a fence or a fence by passing the holding portion through a support or a frame material by itself. By using as a constituent member, further functions can be exhibited. Next, the present invention (2) will be described. The present invention (2) is characterized in that two or more continuous fiber-reinforced thermoplastic resin-terminated elongated bodies of the above-mentioned present invention (1) are combined in a lattice pattern and the intersections are heat-welded. It is a reinforced thermoplastic resin net. Here, "two or more lattices" means that if the members forming the lattice are a vertical member and a horizontal member, each of the vertical member and the horizontal member is constituted by the present invention (1), and Means that at least one cross member is composed of one vertical member and one horizontal member.
Therefore, the intersection of the present invention (2) may be composed of one vertical member and one horizontal member, or may be composed of two or more vertical members and two or more horizontal members. In the present invention (2), the intersections are heat-welded, but if they function as a net, it does not necessarily mean that all the intersections must be heat-welded.

FIGS. 2 and 3 show specific structural examples of the present invention (2). FIG. 2 shows a net according to the present invention (2), which is formed by using a strip-shaped long body in a grid pattern as the present invention (1), and the grid portion excluding its ends is viewed from a direction perpendicular to the plane. FIG. FIG. 3 is a diagram illustrating a cross section cut along a line AA in FIG. 2. (A) and (b) of FIG.
The vertical member 4 and the horizontal member 5 each contact and form the intersection 6 with one body, but in FIG. 3C, one vertical member 4 and two horizontal members 5 form the intersection 6. Is formed. Similarly, in FIG. 3D, an intersection 6 is formed by two vertical members 4 and two horizontal members 5, and in FIG. 3E, two vertical members 4 and three horizontal members 5 are formed. Intersection 6 with
Is formed. The intersection structures (a) to (e) can be used in combination with the same lattice part.

Next, the present invention (3) will be described. In the present invention (3), the present invention (1) is used as a vertical member, and the coated long body or a fragment thereof is used as a horizontal member, and the vertical member and the horizontal member are brought into contact with each other in the thickness direction to form a lattice. A continuous fiber reinforced thermoplastic resin net, which is arranged and heat-welded to the contact surface.

The present invention (3) is similar to the above-mentioned present invention (2). However, in the present invention (2), the present invention (1) is used as a cross member.
Rather than using itself, the coated elongate body or a fragment thereof is used as a horizontal member, and the vertical member and the horizontal member are arranged in a grid by contacting the surfaces in the thickness direction of each member, and the contact surface is formed. It is a net formed by heat welding. Therefore, the present invention of the cross member (1)
The present invention (3)
FIG. 2 is the same as FIG. 2 when the lattice portion excluding the ends is viewed from the direction perpendicular to the plane. FIG. 4 shows a specific example of the present invention (3) in a cross section according to FIG.

In FIG. 4, the vertical member 4 and the horizontal member 5 are in contact with the contact surface 7.
And heat welded. Further, at least one or more holding portions of the present invention (1) may be provided on both outermost portions 4E of the vertical member by heat welding or the like. The contact surface 7 is completely coincident with both rectangular surfaces, and the cross-section viewed from the vertical direction is substantially linear as shown in FIG. 4, but the shape of the contact surface is not limited to this.
Further, the shape and the contact surface of both do not necessarily have to completely match.

In the present invention (3), the vertical members and the horizontal members are terms used for convenience, and even if the vertical members are replaced by the horizontal members and the horizontal members are replaced by the vertical members, the concept of the present invention (3) is not changed. Is the same. Next, the present invention (4) will be described. The present invention (4) is a combination of two or more continuous fiber-reinforced thermoplastic resin-terminated elongated bodies of the present invention (1), which alternately intersect with each other.
A continuous fiber reinforced thermoplastic resin net characterized in that the above intersections are heat-welded. Here, "alternately intersect two or more bodies" means that at least two long bodies of the present invention (1) are arranged so as to contact and intersect at at least one point. FIG. 5 shows an example of the present invention (4) having such a mode of contact and intersection. In addition, the elongate body was represented by a line for simplicity.

FIG. 5 is a view in which a plurality of long bodies of the present invention (1) are arranged on a plane and viewed from a vertical direction. FIG. 2A shows an example in which two long bodies 8a and 8b of the present invention (1) are overlapped in this order to form an intersection 6, and this intersection is heat-welded. FIG. 4B shows three long bodies 8 of the present invention (1).
a, 8b and 8c are overlapped in this order to form an intersection 6 and this intersection is heat-welded. FIG. 3 (c) shows three elongated bodies 8a, 8b and 8c of the present invention (1) stacked in this order to form intersections 6a, 6b and 6c, and these intersections are heat-welded. FIG. 5D shows that the long bodies 8d, 8e and 8f of the present invention (1) are further superimposed on the net shown in FIG. 5C in this order, and these long bodies are heat-welded at the intersections 6a, 6b and 6c. The other intersections were left as they were without heat welding.

In the present invention (2) to (4), the relationship of the arrangement or combination of the long bodies can be obtained by hand or using a ready-made loom or knitting machine. Any well-known method is applied to the method of (1) or the method of heat-welding the holding portion. For example, the method can be applied to a hot press, a hot plate welding machine, or an ultrasonic welding machine.

The constituent materials of the present invention (1) will be described. [Thermoplastic resin] Examples of the thermoplastic resin used for the fiber-containing resin and the thermoplastic resin layer of the present invention (1) include the following or modified resins thereof.・ Polyolefin resin: polyethylene resin, polypropylene resin, poly-1-butene resin, poly-4-methyl-
At least one of 1-pentene resin, propylene-ethylene copolymer resin and propylene-1-butene copolymer resin; polyester resin: at least one of polyethylene terephthalate, polybutylene terephthalate and polyethylene terephthalate isophthalate; polyamide resin (Nylon): polyamide-6, polyamide-7, polyamide-66, polyamide-610,
Polyamide-11; Polyamide-12; Polyacetal; Polyurethane; A composition comprising two or more of the above and a polymer alloy comprising two or more of the above.

Of these, crystalline polyolefins, particularly crystalline polypropylene, are preferably used from the viewpoints of versatility and mechanical strength. In the case where the thermoplastic resin does not have a reactive functional group or a polar functional group for imparting interfacial adhesion to reinforcing fibers, particularly glass fibers, to the molecular terminal groups, like polyolefin (poly-α-olefin). It is useful to take measures such as modifying the resin with a derivative such as an unsaturated acid or an acid anhydride thereof and / or blending a required amount of the polymer modified with the unsaturated acid into the unmodified resin. It is.

The unsaturated acid which can be used as the above modifier is generally an aliphatic unsaturated acid, for example, one or more selected from acrylic acid, methacrylic acid, maleic acid, citraconic acid and mesaconic acid, Preferably it is maleic acid. Derivatives such as unsaturated acid anhydrides that can be used as a modifier are usually aliphatic unsaturated acid anhydrides, for example, one or more selected from maleic anhydride and itaconic anhydride, and are preferably anhydrides. Maleic acid (maleic anhydride).

In the present invention, when such a modifier is used, an organic peroxide may be used in combination, if necessary. Examples of organic peroxides include, for example, 2,5-
Dimethyl (t-butylperoxy) hexane, 1,3-bis (t-
(Butyl-oxyisopropyl) benzene, dicumyl peroxide and benzoyl peroxide.

As the thermoplastic resin, the above-mentioned non-modified resin and modified resin may be used alone or in combination as a resin composition. In order to realize a fiber-containing resin having a strong bond with a reinforcing fiber, it is preferable to use at least a modified resin. Such a modified resin or modified resin composition is, for example, a non-modified resin serving as a base material, a modifier, and an organic peroxide were mixed by a mixing means such as a Henschel mixer (trade name). Thereafter, it is supplied to an extruder to be melt-kneaded, and then the melt-kneaded product is extruded to be manufactured.

The thermoplastic resin may contain one or more of the following various additives as required: an antioxidant, a heat stabilizer, an ultraviolet absorber, a resinous destruction inhibitor, an antistatic agent. Agents, lubricants, plasticizers, mold release agents, flame retardants (flame retardants), flame retardant aids and crystallization promoters (nucleating agents; crystallization agents), dyes and pigments.

These additives may be used in a form previously blended with the above-mentioned thermoplastic resin serving as a matrix, or may be used in the form of a master batch. Further, it is preferable that the thermoplastic resin of the fiber-containing resin and the thermoplastic resin of the thermoplastic resin layer be the same resin or a compatible resin, since the bonding property between the interfaces can be strengthened. [Reinforcing Fiber] The continuous reinforcing fiber forming the fiber-containing resin in the present invention can be obtained by opening a bundle of single fibers, usually a roving-like fiber. In addition to roving, glass yarn or tow can be used.

According to the material, the reinforcing fibers are roughly classified into inorganic fibers and organic fibers. Examples of the inorganic fiber include glass fiber, rock wool (rock wool), asbestos, quartz fiber, metal fiber, whisker (whisker), and carbon fiber. Among them, glass fibers are usually preferably used in view of their properties and availability. As the glass fiber, hard glass is preferable, and in particular, E glass which is non-alkali glass is preferably used. This glass fiber is a commercially available glass roving that is usually manufactured for resin reinforcement, and usually has an average fiber diameter of 4 to 30 μm, a number of filament bundles of 400 to 10,000, and a Tex count of 300 to
20,000, preferably an average fiber diameter of 9 to 2
It is 3 μm. If necessary, these glass rovings can be combined and used.

The inorganic reinforcing fibers include, for example, silane coupling agents, titanate coupling agents,
A surface treatment with a surface treatment agent such as at least one of a boron-based coupling agent and an aluminate-based coupling agent may be used. When the surface treatment is applied to the inorganic reinforcing fibers, the affinity for a hydrophobic resin such as polypropylene is increased, and the resin such as polypropylene is easily impregnated between the spread fibers.

The above inorganic reinforcing fibers may be used alone or in combination of two or more. On the other hand, as the organic reinforcing fiber, usually, polyester fiber,
Polyamide fiber (nylon), aramid fiber and the like can be exemplified. As polyester fiber, PET (polyethylene terephthalate) fiber and PBT (poly-1,4-butylene terephthalate) are commonly used, while 6-polyamide fiber is used as polyamide fiber. , 7-polyamide fiber,
11-polyamide fiber, 12-polyamide fiber and 6,12-polyamide fiber, 6,6-polyamide fiber,
One or more kinds selected from 6,7-polyamide fibers, 6,10-polyamide fibers and 6,12-polyamide fibers, and 6- / 6,6-co-condensed polyamide fibers can be mentioned. [Fiber-containing resin] As a method for producing the fiber-containing resin, the above-mentioned molten thermoplastic resin is embedded inside continuous reinforcing fibers arranged substantially parallel to the length direction of the long body (flow direction of the resin). A procedure for impregnating the resin may be mentioned.
When impregnating the reinforcing fiber with the resin, the reinforcing fiber is spread as evenly as possible on a flat surface, and the resin is uniformly impregnated into the spread fiber, and the mechanical strength of the obtained long body is obtained. This is preferable in that it can improve

The method of impregnating the reinforcing fibers with the resin may be any method that can impregnate the resin into the reinforcing fibers. For example, examples of the impregnation method include the methods disclosed in JP-B-63-37694, JP-B-4-41886, and JP-A-61-229534. This type of fiber-containing resin is formed, for example, by uniformly opening a reinforcing fiber such as a roving on a plane, and then uniformly impregnating the reinforcing fiber with a resin melt-kneaded in an extruder. Can be.

The thickness of the fiber-containing resin is not particularly limited, but is preferably 1.5 mm or less. When the thickness is more than 2.0 mm, the rigidity is too high, which may hinder handling, and may damage the holding portion formed at the end of the elongated body. The reinforcing fiber is preferably 10 to 10 in the fiber-containing resin.
80% by weight, more preferably 30-70% by weight. By using the reinforcing fibers in this amount, the reinforcing fibers are sufficiently integrally impregnated with the thermoplastic resin, and the reinforcing fibers are integrally bonded to each other by the thermoplastic resin. When the content of the reinforcing fiber is 5% by weight or less, a reinforcing effect such as tensile strength may not be sufficiently exhibited. On the other hand, if the content of the reinforcing fibers reaches 90% by weight or more, a sufficient reinforcing effect may not be exhibited. It is understood that the cause is that the reinforcing fibers are not sufficiently impregnated with the thermoplastic resin. [Thermoplastic resin layer] The thermoplastic resin layer is a layer formed of a thermoplastic resin having the above specific properties on the entire surface of the fiber-containing resin. The thickness of the thermoplastic resin layer is not particularly limited, but is preferably 0.1 mm or more.
A range of 1 to 1.0 mm is preferred. When the thickness of the thermoplastic resin layer is less than 0.05 mm, the welding strength of the holding portion cannot be obtained. On the other hand, when the thickness is more than 1.2 mm, the rigidity is too high, which may hinder handling. .

To form the thermoplastic resin layer, for example, a method in which the resin is formed into a film in advance and then the film is laminated on the surface of the fiber-containing resin, or the thermoplastic resin in a molten state is coated on the surface of the fiber-containing resin It can be produced by a method or the like. When the thermoplastic resin layer is formed by laminating, for example, first, a thermoplastic resin and, if necessary, a modifier and the like are mixed, supplied to an extruder, melt-kneaded, and formed into a film. Form a film. Separately, for example, a fiber-containing resin is formed by impregnating a reinforcing thermoplastic fiber with a molten thermoplastic resin. Then, while keeping the fiber-containing resin in a semi-molten state, the fiber-containing resin is laminated with a film that has been wound in advance. When the fiber-containing resin and the film are bonded together, the fiber-containing resin does not necessarily need to be in a semi-molten state, and may be bonded to the film using an adhesive after the fiber-containing resin is cooled and solidified.

When the thermoplastic resin layer is formed by coating, the fiber-containing resin may be extruded and coated on the surface of the fiber-containing resin while the resin is kept in a semi-molten state. After cooling and solidifying the fiber-containing resin, the surface of the fiber-containing resin may be coated. The thickness of the coated long body covered with the thermoplastic resin layer is not particularly limited,
mm or less is preferable. If the thickness is more than 2 mm, the rigidity of the net becomes too high, which may hinder handling, as well as hinder the production of the holding portion formed at the end of the elongated body.

The continuous fiber-reinforced thermoplastic resin end-finished elongated body of the present invention (1) and the net using the same have excellent workability,
It is excellent in tensile properties and dimensional stability, and is suitably used as a member such as a fence or fence by inserting a ring-shaped holding portion formed at an end of a long body into a metal or resin support or frame.

[0033]

EXAMPLES Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples. Also,
The definitions of the terms used in the examples and comparative examples and the measuring method are as follows. Glass fiber content: Measured according to JIS K7052.

MFR (Melt Flow Rate): JIS
It measured according to K7210 (load 21.18N, heating temperature 230 degreeC). Tensile strength: Insert a 30mmφ metal rod into the holding part at both ends of the sample (welding length of the folded contact part (welding length): 40mm), and apply a tensile load at a tensile speed of 5mm / min. , The load when the sample was broken was defined as the tensile strength. Example 1, Comparative Example 1 Modified polypropylene (PP) {crystal melting point (Tm: differential scanning calorimetry (DSC) 160 ° C: MFR 130 g / 10min: maleic anhydride modified product)} was melted in a bath at a temperature of 270 ° C.
Through a glass roving in which 4,000 individual filaments are bundled, drawn out from a 5 mm x 0.6 mm die provided at the outlet of the bathtub as a fiber-containing resin impregnated with molten resin, cooled and solidified through a nipple to obtain a linear material. a was obtained. The glass content of the linear material a was 60% by weight. Further, a linear object a
Into a die for coating, PP (MFR2.0g / 10min, DS
The entire surface of the linear object a is coated with a thermoplastic resin layer at a C melting point of 160 ° C. so as to be substantially uniform, and then cooled and solidified to a width of 7 m.
m, a linear material A having a thickness of 1.0 mm and covered with the entire surface PP was obtained.
The sample was prepared from each of the linear objects a and A. The sample from the linear object a was designated as Comparative Example 1, and the sample from the linear object A was designated as the sample of Example 1. Example 2 A fiber-containing resin was formed in the same manner as in Example 1 except that the number of filaments of the glass fiber roving led to the bath was 2000, and then a linear material B coated with PP was obtained. . The glass fiber content of the obtained linear object B is 30.
wt%, its shape was 7 mm wide and 1.0 mm thick. This was made into a sample (Example 2) in the same manner as described above, and subjected to a test.

Table 1 shows the results of the tests on the obtained samples.

[0036]

[Table 1]

From Table 1, it can be seen that the comparative example having no thermoplastic resin layer had extremely poor tensile strength as compared with the examples. It should be noted that the present invention is not limited to the above embodiments, but encompasses all modified embodiments that can be easily inferred by those skilled in the art from the above description.

[0038]

EFFECTS OF THE INVENTION The continuous fiber-reinforced thermoplastic resin end-molded elongated body of the present invention and the net using the same, which have the above-described structure, are excellent in tensile properties and dimensional stability, and can be used under high load or temperature change. In addition to eliminating loosening, etc., it is also excellent in on-site workability, etc., so that shortening of the construction period can be expected.

[Brief description of the drawings]

FIG. 1 is a view showing an example of a structure of a holding portion of a continuous fiber-reinforced thermoplastic resin end-molded long body of the present invention.

FIG. 2 shows a net of the present invention (2) superposed in a grid pattern on a plane using the strip-shaped elongated body of the present invention (1) as a constituent member, and a grid portion excluding its end is perpendicular to the plane. It is the figure seen from the direction.

FIG. 3 is a view showing a cross section cut along a line AA in FIG. 2, and shows each of the modes (a) to (e).
You.

FIG. 4 is a diagram showing a specific example of the present invention (3) in a cross section according to FIG.

5 shows specific embodiments of the present invention (4) in (a) to (d), in which a plurality of long bodies of the present invention (1) are arranged on a plane, and intersections are heat-welded. FIG. 4 is a view as viewed from a vertical direction.

FIG. 6 shows an example in which the cross section in the width direction of the elongated body of the present invention (1) is rectangular.

FIG. 7 is a diagram for explaining a tensile test method for measuring tensile strength.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Holding part 2 Opening part 3 Welding part 4 Vertical member 5 Horizontal member 6 Intersection 7 Contact surface 8a, 8b, 8c, 8d, 8e, 8f The long body of this invention (1) 9 Reinforcing fiber 10 Thermoplastic resin 11 Fiber Containing resin 12 Thermoplastic resin layer 13 Coated long body

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B29L 28:00

Claims (12)

[Claims] 1. A coated long body obtained by coating a thermoplastic resin layer on a fiber-containing resin obtained by impregnating a continuous reinforcing fiber with a thermoplastic resin, wherein both ends of the coated long body are formed in a ring shape. An end-processed elongated body made of a continuous fiber-reinforced thermoplastic resin, comprising a folded holding portion. 2. The continuous fiber-reinforced thermoplastic resin-terminated elongated body according to claim 1, wherein the thickness of the thermoplastic resin layer is 0.1 mm or more. 3. A continuous fiber-reinforced thermoplastic resin-made elongated body according to claim 1, wherein the thickness of the coated elongated body is 2 mm or less. 4. The reinforcing fiber content in the fiber-containing resin is 10 to 80% by weight.
3. The continuous fiber-reinforced thermoplastic resin-terminated elongated body according to any one of the above items 3. 5. The continuous fiber-reinforced thermoplastic resin-terminated elongated body according to claim 1, wherein the reinforcing fiber is made of glass fiber. 6. The folded contact portion of the holding portion has a length of 15 mm.
2. A welding method according to claim 1, wherein said welding is performed with the above length.
6. The continuous fiber-reinforced thermoplastic resin-terminated elongated body according to any one of items 1 to 5. 7. The continuous fiber reinforced heat according to claim 1, wherein the resin used for the fiber-containing resin and the thermoplastic resin layer is a polyolefin resin or a modified resin thereof. Elongated body made of plastic resin. 8. A continuous fiber-reinforced thermoplastic resin end-finished elongated body according to any one of claims 1 to 7, wherein two or more elongated bodies are combined in a grid and the intersections are heat-welded. A continuous fiber reinforced thermoplastic resin net. 9. The coated long material according to any one of claims 1 to 7, wherein the continuous fiber-reinforced thermoplastic resin end-finished long material according to any one of claims 1 to 7 is a longitudinal member. A continuous fiber reinforced heat, wherein a body or a fragment thereof is used as a horizontal member, and the vertical members and the horizontal members are arranged in a grid by contacting surfaces in the thickness direction of the respective horizontal members, and the contact surfaces are heat-welded. Net made of plastic resin. 10. The continuous fiber reinforced heat according to claim 9, wherein at least one or more of the holding portions according to any one of claims 1 to 7 are provided on both side portions of the longitudinal member. Net made of plastic resin. 11. A continuous fiber-reinforced thermoplastic resin end-processed elongated body according to any one of claims 1 to 7, which is combined so that two or more bodies are alternately crossed, and one or more intersections are thermally welded. A continuous fiber reinforced thermoplastic resin net characterized by being made. 12. The holding portion according to claim 1, wherein the holding portion is passed through a support or a frame material, and functions as a fence or a fence. The continuous fiber reinforced thermoplastic resin net according to claim 1.