Resin guardrail
a technology of guardrails and resins, applied in the field of resin guardrails, can solve the problems of deterioration of visibility, easy contamination of metal guardrails with dirt, discoloration, rusted, etc., and achieve the effect of improving durability and impact resistan
Active Publication Date: 2021-04-15
CARIS GUARD RAIL CO LTD +1
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention is about making a durable and strong plastic guardrail by using a mixture of polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS). This results in a better resistance to impacts.
Problems solved by technology
Meanwhile, the guardrail made of metal has high strength but low impact absorption effect, which may threaten driver's safety when a vehicle crashes into the guardrail.
Also, the metal guardrail tends to be easily contaminated with dirt, discolored, rusted, and deteriorated in visibility, so there is a problem in that a periodic painting work is required and the metal guardrail itself needs to be replaced after a certain time period.
Method used
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[0017]Hereinafter, the present invention will be described in more detail. The terms or words used in this description and claims are not to be construed as being limited to their ordinary or dictionary meanings, and should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention based on the principle that inventors may properly define the concept of a term in order to best describe their invention.
[0018]The resin guardrail according to the present invention consists of a resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS). The resin guardrail is to be installed on the roadside as shown in FIG. 1, and has the same structure as a conventional guardrail which is continuously fixed to the vertical post P by using a bracket B in the horizontal direction or directly coupled and fixed to the vertical post P without a separate bracket.
[0019]Since resin guardrails for replacing commonly used metal pla...
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Abstract
The present invention relates to a resin guardrail consisting of a resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) and fixed to a vertical post (P) and, more particularly, relates to a resin guardrail having improved durability and impact resistance, the resin guardrail being produced through extrusion molding of the resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) and made by mixing 1 to 10 parts by weight of microcapsules containing acrylic acid (CH2=CHCOOH), hydrogen peroxide (H2O2), lithium nitrate trihydrate (LiNO33H2O), and acrylonitrile (CH2CHCN), based on 100 parts by weight of resin mixture containing the PVC compound and the ABS compound mixed at a weight ratio of 50:50 to 90:10.
Description
TECHNICAL FIELD[0001]The present invention relates to a resin guardrail and, more particularly, to a resin guardrail made of a plastic material installed along the roadside for guiding vehicle traffic and having improved durability.BACKGROUND ART[0002]Generally, guardrails are road facilities installed along roadsides to indicate road boundaries and to prevent a vehicle from running off the road. Such a guardrail needs to have high impact strength to prevent the vehicle from running off the road when the vehicle crashes into the guardrail, while simultaneously requiring a property of absorbing the impact applied to the vehicle and the guardrail. This requirement is particularly concerned with the protection of drivers and occupants.[0003]In general, a guardrail is a pressed metal plate in a continuously curved form, and is continuously disposed and fixed to a rail post properly arranged along the roadside. Meanwhile, the guardrail made of metal has high strength but low impact absor...
Claims
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IPC IPC(8): C08L55/02C08L27/06E01F15/04B01J13/18
CPCC08L55/02C08L27/06C08K5/09B01J13/18E01F15/0453B29C48/12B29C48/11C08F259/04C08F285/00C08F220/06C08F220/44C08K13/02C08K9/10C08K3/20C08K3/28C08K5/20C08K5/14C08K5/315
Inventor YU, CHEOL
Owner CARIS GUARD RAIL CO LTD