WO2008001571A1 - Tuyau en résine synthétique - Google Patents

Tuyau en résine synthétique Download PDF

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Publication number
WO2008001571A1
WO2008001571A1 PCT/JP2007/060864 JP2007060864W WO2008001571A1 WO 2008001571 A1 WO2008001571 A1 WO 2008001571A1 JP 2007060864 W JP2007060864 W JP 2007060864W WO 2008001571 A1 WO2008001571 A1 WO 2008001571A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
resin
synthetic resin
molecular weights
synthetic resins
Prior art date
Application number
PCT/JP2007/060864
Other languages
English (en)
Japanese (ja)
Inventor
Yoshihiro Miura
Kenichi Numata
Original Assignee
Toyox Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyox Co., Ltd. filed Critical Toyox Co., Ltd.
Priority to CN200780024846.7A priority Critical patent/CN101484306B/zh
Publication of WO2008001571A1 publication Critical patent/WO2008001571A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products

Definitions

  • the present invention relates to a synthetic resin hose with improved stickiness on the hose surface.
  • the present invention relates to a synthetic resin hose in which a transparent low friction surface is formed on the hose surface.
  • the wall of the hose includes an inner layer that forms a water passage, a pressure-resistant net provided outside the inner layer, and an outer layer that covers the pressure-resistant net.
  • the main polychlorinated bur resin has a force of containing 10 to 90 wt% (desirably 40 to 70 wt%) of a partially crosslinked resin, or a partial
  • 10-50 wt% preferably 20-50 wt% of a partially crosslinked resin is contained in the main polyolefin resin, and at least one surface modifier is added. ; ⁇ 1.
  • Patent Document 1 Japanese Patent No. 3639174 (page 2-4, Fig. 1)
  • the melting temperature of the partially cross-linked resin is significantly higher than that of a general resin that is not bridged.
  • a general resin that is not bridged In order to manufacture other general hoses, If even a small amount of the partially cross-linked resin used is mixed, it will be difficult to melt even if the heating temperature is increased during molding! There was a problem of being a defective product.
  • the partially crosslinked resin is not only expensive, but also requires the addition of a surface modifier, which increases the cost.
  • a first invention of the present invention aims to improve the stickiness of the hose surface without using a partially crosslinked resin.
  • the second invention aims to finish a hose that is transparent and highly designable.
  • the third invention aims to make the fishery easy and forceful.
  • a first invention of the present invention is characterized in that a fish eye is formed by mixing and molding a plurality of synthetic resins having different molecular weights on a hose surface. That's right.
  • the second invention is characterized in that a structure in which fish eyes are formed densely on the surface of the hose and the surface of the hose is a frosted surface is added to the structure of the first invention.
  • a plurality of synthetic resins having greatly different molecular weights are mixed with the structure of the first invention or the second invention, and the mixture is heat-molded to a temperature lower than the melting temperature of the high molecular weight synthetic resin. It is characterized by adding a structure in which fish eyes are formed.
  • the first invention of the present invention is that a plurality of synthetic resins having different molecular weights are mixed on the hose surface and thermoformed to form a high molecular weight synthetic resin in a molten low molecular weight synthetic resin. Particles remain like fish eyes and fish eyes are formed on the hose surface, and the hose surface becomes a low-friction surface due to the fine irregularities caused by the fish eye.
  • the stickiness of the hose surface can be improved without using a partially crosslinked resin.
  • the stickiness on the hose surface is similar to the conventional one using partially crosslinked resin. And tackiness can be prevented, and the hose can be wound up and pulled out comfortably.
  • the hose surface has a small coefficient of friction, which improves wear resistance.
  • a resin having the same characteristics and different only in the average degree of polymerization has a similar transmission refractive index, and a transparent hose can be formed.
  • the same hose production line sequentially manufactures a hose with a low friction surface and a general hose that is not low friction, the high molecular weight used in the previous production of the low friction hose.
  • the synthetic resin is mistakenly mixed, if the molding temperature is raised to a temperature at which this polymer resin melts, the unmelted polymer resin particles that cause fish eyes will melt and remain defective. Therefore, it is easier to manufacture and manage the raw materials, especially the contamination (contamination), compared to the conventional product that becomes a defective product when the partially crosslinked resin is mixed by mistake.
  • the cost can be greatly reduced as compared with conventional products that require the addition of expensive partially cross-linked resins and surface modifiers, and low-cost, low-friction hoses can be manufactured.
  • the second invention is formed by forming fish eyes densely on the surface of the hose, thereby generating countless fine irregularities due to the fish eyes.
  • the incident light is refracted and becomes an erasing surface.
  • the melting temperature and low molecular weight of these polymer resins can be reduced. Since the temperature difference from the melting temperature of the resin becomes large, many unmelted particles of the polymer resin tend to remain by molding while heating between these melting temperatures. Therefore, the fish eye can be easily formed and the force can be surely formed.
  • the synthetic resin hose of the present invention has a high molecular weight in a molten low molecular weight synthetic resin by mixing a plurality of synthetic resins having different molecular weights or polymerization degrees on the surface of the hose body and then heat-molding them.
  • the so-called "fish eye” (or fish 'eye) is formed on the surface of the hose body, and the fine recesses by the fish eye remain.
  • the entire surface of the hose body or a part thereof is a low friction surface.
  • thermoplastic resins and thermosetting resins having different K values of molecular weight or degree of polymerization a high-molecular weight synthetic resin having a high K value and a high melting temperature, and a low K value are dissolved. If a low melting temperature and low molecular weight synthetic resin is selected and the molding temperature is lower than the melting temperature of the polymer resin! It is called “fish eye” that melts and melts unmelted polymer resin particles into small spheres, and these dispersed particles remain like fish eyes.
  • the fish eye is formed densely with respect to the surface of the hose body, and by forming innumerable fine irregularities due to these fish shines, the light hitting them is refracted and becomes a satin surface.
  • the power to be S is preferable.
  • Example 1 for example, as disclosed in Japanese Patent No. 3639174, the hose main body force inner layer (inner layer) forming a water passage, and a reinforcing material is wound around the inner layer, etc.
  • the pressure-resistant layer (reinforcing layer) formed in this manner and an outer layer (outer layer) covering the entire outside of the pressure-resistant layer are integrally laminated, and the fish eye extends over the entire outer layer.
  • the above-mentioned fluid in a thin film shape only on the outer peripheral surface of the outer layer.
  • a high molecular weight thermoplastic resin having a K value of about 90 from a thermoplastic resin such as a chlorinated resin having a molecular weight or polymerization degree K value of 40 to 95, for example, Is mixed with a low molecular weight thermoplastic resin of about 55, and only this low molecular weight thermoplastic resin is melted reliably, for example, 150-180 ° C while heating almost uniformly over the entire circumference.
  • a high molecular weight thermoplastic resin having a K value of about 90 from a thermoplastic resin such as a chlorinated resin having a molecular weight or polymerization degree K value of 40 to 95, for example, Is mixed with a low molecular weight thermoplastic resin of about 55, and only this low molecular weight thermoplastic resin is melted reliably, for example, 150-180 ° C while heating almost uniformly over the entire circumference.
  • extrusion molding fish eyes are formed densely over the entire surface of the hose body to create a matte surface.
  • the amount of fish eyes can be easily adjusted by adjusting the heating and melting temperature.
  • an optimum material corresponding to the fluid passing through the inner layer is selected and compatible with the material of the outer layer in order to improve the adhesion to the outer layer. It is preferable to select an excellent one or to additionally form an adhesive layer between the outer layer and the outer layer.
  • a synthetic resin reinforcing thread such as polyester or nylon garamide, a reinforcing fiber or a monofilament (monofilament), or a metal reinforcing wire such as stainless steel is used. It is configured by winding in a spiral shape (coiled shape) or mesh shape along the outer peripheral surface of the inner layer.
  • the surface of the hose body becomes a low-friction surface with fine irregularities caused by fish eyes simply by mixing and molding a plurality of synthetic resins having different molecular weights on the surface of the hose body. Even without using a partially crosslinked resin as disclosed in Japanese Patent No. 3639174, a transparent synthetic resin hose having no stickiness (tackiness) can be produced inexpensively if the surface is sticky.
  • the hose body has an inner layer, a pressure-resistant layer, and an outer layer.
  • the physical layered structure showed the force to form fish eyes on the entire outer layer, or the case where fish eyes were formed in a thin film only on the outer peripheral surface of the outer layer.
  • the fish eye may be formed on the surface of the hose body having another structure, for example, a fish eye may be formed on the surface of the hose body having no pressure-resistant layer.
  • the type and molding method of the synthetic resin used are not limited to the above-described chlorinated resin or extrusion molding, and synthetic resins other than chlorinated resin may be used, or molding methods other than extrusion molding may be used. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Le collant superficiel d'un tuyau est amélioré sans utilisation d'une résine partiellement réticulée. Lorsqu'on réalise le moulage à chaud d'un tuyau tout en mélangeant une pluralité de résines synthétiques présentant différents poids moléculaires dans la surface du tuyau, les particules des résines synthétiques de poids moléculaire élevé restent dans les résines synthétiques fondues de faible poids moléculaire, d'où la formation d'yeux de poisson dans la surface du tuyau. Les saillies et les évidements de petite taille formés par les yeux de poisson confèrent à la surface du tuyau les propriétés d'une surface à faible friction.
PCT/JP2007/060864 2006-06-30 2007-05-29 Tuyau en résine synthétique WO2008001571A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200780024846.7A CN101484306B (zh) 2006-06-30 2007-05-29 合成树脂管

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-181787 2006-06-30
JP2006181787A JP4187112B2 (ja) 2006-06-30 2006-06-30 合成樹脂ホースの製造方法

Publications (1)

Publication Number Publication Date
WO2008001571A1 true WO2008001571A1 (fr) 2008-01-03

Family

ID=38845342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/060864 WO2008001571A1 (fr) 2006-06-30 2007-05-29 Tuyau en résine synthétique

Country Status (4)

Country Link
JP (1) JP4187112B2 (fr)
CN (1) CN101484306B (fr)
HK (1) HK1132224A1 (fr)
WO (1) WO2008001571A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5222063B2 (ja) * 2008-09-02 2013-06-26 タイガースポリマー株式会社 可撓性ホース
TWI787238B (zh) 2017-02-27 2022-12-21 日商可樂麗股份有限公司 含有聚合物粒子之樹脂組成物及其製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10168310A (ja) * 1996-12-13 1998-06-23 Ube Ind Ltd 滑り性の優れたポリアミドフィルム
JP2000007867A (ja) * 1998-06-25 2000-01-11 Shin Etsu Polymer Co Ltd 部分架橋塩化ビニル系樹脂組成物
JP2002138110A (ja) * 2000-10-31 2002-05-14 Japan Polychem Corp ポリエチレン樹脂及びこれを用いたパイプ及び継手

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10168310A (ja) * 1996-12-13 1998-06-23 Ube Ind Ltd 滑り性の優れたポリアミドフィルム
JP2000007867A (ja) * 1998-06-25 2000-01-11 Shin Etsu Polymer Co Ltd 部分架橋塩化ビニル系樹脂組成物
JP2002138110A (ja) * 2000-10-31 2002-05-14 Japan Polychem Corp ポリエチレン樹脂及びこれを用いたパイプ及び継手

Also Published As

Publication number Publication date
JP2008006774A (ja) 2008-01-17
JP4187112B2 (ja) 2008-11-26
CN101484306B (zh) 2015-07-22
CN101484306A (zh) 2009-07-15
HK1132224A1 (en) 2010-02-19

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