KR0135407Y1 - Shock absorber - Google Patents

Shock absorber Download PDF

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Publication number
KR0135407Y1
KR0135407Y1 KR2019960024108U KR19960024108U KR0135407Y1 KR 0135407 Y1 KR0135407 Y1 KR 0135407Y1 KR 2019960024108 U KR2019960024108 U KR 2019960024108U KR 19960024108 U KR19960024108 U KR 19960024108U KR 0135407 Y1 KR0135407 Y1 KR 0135407Y1
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South Korea
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foam
parts
buffer
slow recovery
shock absorber
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KR2019960024108U
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Korean (ko)
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KR960031954U (en
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전영식
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전영식
서일화학주식회사
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    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/087—Units comprising several springs made of plastics or the like material
    • F16F3/093—Units comprising several springs made of plastics or the like material the springs being of different materials, e.g. having different types of rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/22—Catalysts containing metal compounds
    • C08G18/24—Catalysts containing metal compounds of tin
    • C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/125—Water, e.g. hydrated salts
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/06—Polyurethanes from polyesters

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

충격완화시설용 완충제에 있어서, 탄성 발포체(200)에 구멍(201)을 조성한 후 완속회복 발포체(300) 코어를 삽입하여 충격완화 장치용 완충제를 구성하며, 발포체(200)는 프레스 가공으로 구멍을 조성한 판상의 발포체(202)를 적층하여 형성하며, 완속회복 발포체(300)는 발포체(200)의 구멍(201)내에서 발포조성물을 발포성형하여 조성하며, 완속회복 발포체는 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%로서 현장발포 가능한 폴리머(Prepolymer)로서, 폴리에테르폴리올 100부, 물 0.5∼2부, 실리콘오일 5∼10부, 트리에탄올아민(TEOA) 0∼0.3부, 1.4-디아조(2,2,2)바이사이클로옥탄(D-33LV) 0.2~0.5부, 제1주석옥토에이트 0.01~0.05부, 카본블랙 0.3~0.8부에 폴리올에 대한 이소시아네이트 인덱스 0.6∼0.8을 혼가하여 얻는 것을 특징으로하는 충격완화 장치용 완충제 이다.In the shock absorber buffer, a hole 201 is formed in the elastic foam 200, and then the slow recovery foam 300 core is inserted to form a shock absorber buffer, and the foam 200 is formed by pressing. Formed by laminating the plate-shaped foam 202, the slow recovery foam 300 is formed by foaming the foam composition in the hole 201 of the foam 200, the slow recovery foam is 0.1 ~ 0.4g / cc specific gravity Prepolymer which can be field-foamed as 5-10% Rebound%, 100 parts of polyether polyol, 0.5-2 parts of water, 5-10 parts of silicone oil, 0-0.3 parts of triethanolamine (TEOA), 0.2-0.5 parts of 1.4-diazo (2,2,2) bicyclooctane (D-33LV), 0.01-0.05 parts of stannous octoate, and 0.3-0.8 parts of carbon black have an isocyanate index of 0.6-0.8 for polyol. It is a buffer for shock absorbers, characterized in that obtained by mixing.

Description

충격완화 장치용 완충제Shock Absorber Buffer

이 고안은 도로 충격완화 장치용 완충체의 개량 고안으로서, 특히 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%완속회복 발포체(Polyurethan Slow recovery foam)를 코어로서 삽입하여 되는 완충체를 제공하려는 것이다.This design is an improved design of the shock absorber for the road shock absorber, in particular a buffer having a specific gravity of 0.1 to 0.4 g / cc and a rebound% 5 to 10% of a polyurethan slow recovery foam as a core. To provide a sieve.

고속도로 인터 체인지의 진입로의 분기 분리대, 고속도로 접속부의 돌출 중앙 분리대는 진입차량의 충돌이 빈번한 곳이다. 이 외에도 지하차도 진입구의 돌출 분리대나 교차로 중앙에 설치된 고가도로의 교각은 차량의 충돌 위험이 상존하는 도로 시설물이다. 상기와 같은 도로 시설물에 충돌하는 차량의 충격을 완화하기 위해서 도로 시설물에 충격완화 장치를 설치한다. 충격완화 장치는 차량이 충돌했을 때 충격에너지를 흡수하므로 차량의 충격파손을 감소시키고 탑승자가 차량 내에서 충돌하여 발생하는 2차 충격을 완화시키기 위한 것이다.The branch separator of the access road of the highway interchange, and the protruding central separator of the highway junction are frequent collisions of entry vehicles. In addition, overhangs at the entrance of the underground roadway or overpasses in the middle of intersections are road facilities where there is a risk of collision of vehicles. In order to alleviate the impact of the vehicle colliding with the road facility as described above, the impact relief device is installed on the road facility. The shock absorbing device absorbs the impact energy when the vehicle collides, thereby reducing the impact damage of the vehicle and mitigating the secondary impact caused by the collision of the occupant in the vehicle.

종래의 충격완화장치의 코어재로서 폴리우레탄 폼(Polyurethan Foam), 탄성회복율이 큰 일반적인 슬라브폼(Slab foam)이나 헥사폼(Hexa - foam / EVA foam)등을 사용한다. 폴리우레탄 발포체는 완전탄성을 가지므로 충격완화 장치의 코어재로 설치하여 충격으로 변형 수축이 가해졌을 때 회복시에 생기는 반발력으로 차량 내부에서 심각한 2차 충격을 일으키게 된다. 이와 같은 문제점을 보완하기 위하여 충격완화 장치를 충분히 크게(길게) 설치해야 했던 것이다.As the core material of the conventional shock absorber, polyurethane foam (Polyurethan Foam), a general slab foam (hexalab foam) or hexa foam (Hexa-foam / EVA foam) having a high elastic recovery rate is used. Polyurethane foam is completely elastic, so it is installed as the core material of the impact mitigator, and when the deformation shrinkage is applied to the impact, the repulsive force generated during recovery causes a serious secondary impact inside the vehicle. To alleviate this problem, the shock absorber had to be installed large enough (long).

일반적으로 자동차(충돌물체)의 감속도는 완충재에 작용하는 정지력(Stopping Force)에 비례하여 증가하고 주어진 충돌시간에서 자동차의 운동에너지와 충격완화 장치물의 변형에너지의 합은 자동차의 초기운동 에너지와 같으므로 자동차의 감속도를 크게 증가시키지 않는다. 그러므로 운동에너지를 효과적으로 흡수할 수 있는 재료는 탄성 소성체 이어야 한다. 이와같은 요청에 따른 발명으로서 같은 발명자에 의해 제안된 특허출원 94-14005호 충격완화 시설용 완속회복 발포체를 들 수 있다.In general, the deceleration of an automobile (collision object) increases in proportion to the stopping force acting on the cushioning material, and the sum of the kinetic energy of the vehicle and the deformation energy of the shock absorber at a given collision time is equal to the initial kinetic energy of the vehicle. The same does not significantly increase the deceleration of the car. Therefore, the material that can absorb the kinetic energy effectively should be elastic plastic body. As the invention in accordance with such a request, there may be mentioned a patent application 94-14005 slow recovery foam for impact relief facilities proposed by the same inventor.

이 고안은 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%완속회복 발포체(Polyurethan Slow recovery foam)를 코어로서 삽입하여 되는 완충제를 제공하려는 것으로, 탄성 발포체 내에 완속회복 발포체를 코어로서 삽입하여 탄성체의 반발탄성과 완속회복 발포체의 탄성소성을 조화 시키므로 차량의 충돌시 충격에너지 흡수력을 높일 수 있는 탄성체를 제공함에 목적이 있다.The present invention aims to provide a buffer in which a specific gravity of 0.1 to 0.4 g / cc and a rebound% of 5 to 10% of a polyurethan slow recovery foam is inserted as a core. The purpose of the present invention is to provide an elastic body that can increase the impact energy absorbing force when a vehicle collides, since the elastic resilience of the elastic body and the elastic plasticity of the slow recovery foam are harmonized by inserting it.

제1도는 도로 충격완화 장치의 평면예시도.1 is a plan view of the road shock absorbing device.

제2도는 충격완화 장치의 측면예시도.2 is a side view of the shock absorber.

제3도는 도로 충격완화 장치의 다른 평면예시도.3 is another plan view of the road shock absorbing device.

제4a,b,c도는 이 고안 완충제의 여러 실시예 평면도.4a, b, c are plan views of various embodiments of this design buffer.

제5도는 4도 완충제의 일부 절개 측면 구성도.5 is a partial cutaway side view of a 4 degree buffer.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

100 : 완충제 200 : 탄성발포체100: buffer 200: elastic foam

201 : 구멍 202 : 판상 탄성발포체201: hole 202: plate-shaped elastic foam

300 : 완속회복 발포체300: slow recovery foam

도1, 도2는 도로 분기 차로의 사이드 분리대에 설치된 충격완화 장치의 평면도 및 측면도를 보여준다. 이 장치는 차량의 측면접촉 충돌을 고려하여 설치하는 것으로서, 블럭 형태로 조립되는 완충제(1)를 스틸커버(2, 21) 내에 배열한다. 스틸커버(2, 21)에 정면 충돌부(부호 2 부분)와 측면의 접촉 충돌부(부호 21부분)를 조성하며, 결속부재(3)로 완충제(1)를 시틸커버(21)에 지지하고, 시틸커버(2, 21)를 부상 지지부재(4)위에 지지시켜 도로면(5)위로 부상시키고, 밀림가이드(6)와 지지부재(4)를 지지체인(또는 와이어)(7)으로 결속하여 차량의 충돌에 대비하고, 완충제(1) 후미를 콘크리트 구조물(8)에 지지 시켰다.1 and 2 show a plan view and a side view of an impact mitigating device installed on a side separator of a road branch lane. This device is installed in consideration of the side contact collision of the vehicle, and arranges the buffer 1, which is assembled in the form of a block, in the steel covers 2, 21. A front collision part (2 parts) and a side contact collision part (21 parts) are formed in the steel covers 2 and 21, and the buffer member 1 is supported by the cyl cover 21 by the binding member 3, , The support cover (2, 21) is supported on the floating support member (4) to rise on the road surface (5), binding the jungle guide (6) and the support member (4) to the support (or wire) (7) In preparation for the collision of the vehicle, the rear end of the buffer (1) was supported on the concrete structure (8).

도3은 완충제(1)의 규격과 배열을 달리하여 도로의 중앙분리대에 설치된 충격완화장치물의 평면도를 보여준다. 마찬가지로 완충제로 스틸커버(2, 21) 내측에 배열되고 주로 차량의 정면출돌을 고려한 형태로 되어 있다.Figure 3 shows a plan view of the shock absorber installed in the median of the road in different sizes and arrangement of the buffer (1). Similarly, it is arranged inside the steel covers 2 and 21 as a buffer, and is mainly in the form which considers the frontal side of a vehicle.

이와 같은 이 고안 충격완화 장치는 차량의 충돌시 스틸커버(2, 21)가 변형되면서 내부의 완충제(1)를 수축 변형시켜 차량의 충격을 완화시키는 것이다.This shock-absorbing device is designed to reduce the impact of the vehicle by shrinking and deforming the buffer (1) inside the steel cover (2, 21) during the collision of the vehicle.

이 고안의 완충제(100)는 도4 및 도5에 표시되어 있다. 도4에서 완충제는 장치물의 크기나 형태에 대응시켜 A, B, C 타입 또는 필요한 임의의 타입으로 제조한다. 도1의 장치를 위해 A, B, C 타입이 모두 필요한 경우가 있으며 도3의 장치를 위해 B타입 또는 C타입과 D타입의 완충제를 사용하기도 한다.The buffer 100 of this design is shown in FIGS. 4 and 5. In FIG. 4, the buffer is prepared in A, B, C type or any type required according to the size or shape of the device. Type A, B, and C are all required for the device of FIG. 1, and buffers of type B or C and D may be used for the device of FIG. 3.

이 고안의 완충제(100)는 탄성 회복율이 큰 탄성 발포체(실시예에서 PE발포체, EVA폼, 반경질 폴리우레탄 폼 등)(200)에 구멍(201)을 조성한 후 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%인 완속회복 발포체(Polyurethan Slow recovery foam)(300)코어를 삽입하여 구성한다. 반발탄성(Rebound%)5∼10%인 완속회복 발포체는 특허출원 94-14005에서 특정되는 발포체류이다.The buffer 100 of the present invention has a specific gravity of 0.1 to 0.4 g / cc after forming a hole 201 in an elastic foam having high elastic recovery rate (PE foam, EVA foam, semi-hard polyurethane foam, etc.) in the embodiment 200, It is composed by inserting a polyurethan slow recovery foam (300) core of 5-10% rebound elasticity (Rebound%). Slow recovery foams having 5-10% rebound% are foams specified in patent application 94-14005.

구멍(201)의 형태는 원형 사각형 또는 다각형 구멍으로 하나, 원형 구멍(201)이 두가지 발포체의 회복 특성을 조화시키는 데 적합하다. 탄성 발포체와 완속회복 발포체의 체적비는 두 발포체의 특성을 고려하여 정한다. 실시예에서 탄성발포체는 도5와 같이 판상의 발포체(202)를 여러층으로 적층한 구조로서 그 제조과정은 판상의 발포체(202)에 프레스 가공으로 구멍을 조성한 후 적층하고 적층된 탄성 발포체(200)의 구멍(201)에서 완속 회복발포체를 발포 성형시켜 완속회복 발포체코어를 설치하는 것이다.The shape of the hole 201 is a circular rectangular or polygonal hole, but the circular hole 201 is suitable for matching the recovery characteristics of the two foams. The volume ratio of elastic foam and slow recovery foam is determined by considering the properties of the two foams. In the embodiment, the elastic foam has a structure in which the plate-shaped foam 202 is laminated in multiple layers as shown in FIG. 5, and the manufacturing process thereof is formed by forming a hole in the plate-shaped foam 202 by pressing and laminating the laminated elastic foam 200. The slow recovery foam is foamed and molded into the slow recovery foam core in the hole 201 of FIG.

상기 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%인 완속회복 발포체(Slow recovery Foam)는 폴리에테르폴리올 100부, 물 0.5∼2부, 실리콘오일 5∼10부, 트리에탄올아밀(TEOA) 0∼0.3부, 1.4-디아조(2,2,2)바이사이클로옥탄 (D-33LV) 0.2∼0.5부, 제1주석옥토에이트 0.01∼0.05부, 카본블랙 0.3∼0.8부를 중량부로 혼가하고, 폴리올에 대한 이소시아네이트 인덱스 0.6∼0.8(중량부로 환산하여 폴리올 100부에 대해서 25∼35 중량부)를 혼가하여 얻는 현장발포 가능한 폴리머(Prepolymer)이다. 이 고안의 완속회복 발포체는 상기 조성물 외에 회복특성이 유사한 완속회복 발포체를 포함하는 것으로 한다. 도5에서 부호 400은 덮개이다.The slow recovery foam having a specific gravity of 0.1 to 0.4 g / cc and a rebound% of 5 to 10% includes 100 parts of polyether polyol, 0.5 to 2 parts of water, 5 to 10 parts of silicone oil, and triethanol amyl. (TEOA) 0 to 0.3 parts, 1.4-diazo (2,2,2) bicyclooctane (D-33LV) 0.2 to 0.5 parts, stannous octoate 0.01 to 0.05 parts, carbon black 0.3 to 0.8 parts by weight And a field-foamable polymer obtained by mixing the isocyanate index 0.6 to 0.8 (25 to 35 parts by weight based on 100 parts by weight of the polyol in terms of parts by weight) with respect to the polyol. The slow recovery foam of the present invention is intended to include a slow recovery foam having similar recovery characteristics in addition to the above composition. In FIG. 5, reference numeral 400 denotes a cover.

이와같은 이 고안 탄성체는 탄성 발포체에 완속회복 발포체 코어를 설치하므로 탄성체의 반발탄성과 완속회복 발포체의 탄성소성이 조화되어 차량의 충돌시 충격에너지 흡수력을 크게 높여 충격에너지를 흡수하므로 차량의 충격파손을 감소시키고 탑승자가 차량 내에서 충돌하여 발생하는 2차 충격을 현저히 완화시키기 위한 것이다.Since this designed elastic body has a slow recovery foam core installed on the elastic foam, the elastic resilience of the elastic body and the elastic plasticity of the slow recovery foam are harmonized to greatly increase the absorbing energy of the impact energy when the vehicle collides, thereby absorbing the impact energy. To significantly alleviate secondary shocks caused by the collision of passengers in the vehicle.

위와 같이 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%완속회복 발포체(Polyurethan Slow recovery foam)를 코어로서 삽입하여 되는 이 고안 완충제는 탄성체의 반발탄성과 완속회복 발포체의 탄성소성을 조화 시키므로 차량의 충돌시 충격에너지 흡수력을 높여 충돌시 발생하는 인적, 물적 피해를 감소시킬 수 있고 충격완화장치의 시설 크기를 줄일 수 있는 효과가 있다.As described above, the buffer designed by inserting a specific gravity of 0.1 to 0.4 g / cc and a rebound% of 5 to 10% polyurethan slow recovery foam as a core is used as a resilient elasticity of the elastic body and the elastic plasticity of the slow recovery foam. In this way, the impact energy is absorbed during the collision of the vehicle, thereby reducing the human and physical damages caused by the collision and reducing the size of the impact mitigation device.

Claims (3)

피복 탄성체의 구멍에 탄성체 코어를 삽입한 것에 있어서, 탄성 발포체(200)의 구멍(201)에 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%인 완속회복 발포체(300) 코어를 삽입하여 구성한 것을 특징으로 하는 충격완화 장치용 완충제.The slow recovery foam 300 core having a specific gravity of 0.1 to 0.4 g / cc and a repulsive elasticity (Rebound%) of 5 to 10% in the hole 201 of the elastic foam 200 by inserting the elastic core into the hole of the coated elastic body. Shock absorber buffer, characterized in that configured to insert. 제1항에 있어서, 적층된 판상 발포체(202)로서 조성되는 발포체(200)의 구멍(201)에 완속회복 발포체(300) 코어를 발포시킨 것을 특징으로 하는 충격완화 장치용 완충제.The shock absorber buffer of claim 1, wherein a slow recovery foam (300) core is foamed in a hole (201) of the foam (200) formed as a laminated plate foam (202). 제1항에 있어서, 비중 0.1∼0.4g/cc, 반발탄성(Rebound%)5∼10%의 완속회복 발포체(300)는 폴리에테르폴리올 100부, 물 0.5∼2부, 실리콘오일 5∼10부, 트리에탄올아민(TEOA) 0∼0.3부, 1.4-디아조(2,2,2)바이사이클로옥탄 (D-33LV) 0.2∼0.5부, 제1주석옥토에이트 0.01∼0.05부, 카본블랙 0.3∼0.8부를 중량부로 혼가하고 이소시아네이트를 폴리올에 대한 인덱스 0.6∼0.8로 혼가하여 얻는 발포체 폴리머(Prepolymer)인 것을 특징으로하는 충격완화 장치용 완충제.The slow recovery foam 300 having a specific gravity of 0.1 to 0.4 g / cc and a rebound percent of 5 to 10% comprises 100 parts of polyether polyol, 0.5 to 2 parts of water, and 5 to 10 parts of silicone oil. , Triethanolamine (TEOA) 0 to 0.3 parts, 1.4-diazo (2,2,2) bicyclooctane (D-33LV) 0.2 to 0.5 parts, stannous octoate 0.01 to 0.05 parts, carbon black 0.3 to 0.8 A buffer for shock-absorbing device, characterized in that it is a foamed polymer (Prepolymer) obtained by mixing parts by weight and mixing isocyanates with an index of 0.6 to 0.8 for polyols.
KR2019960024108U 1996-08-10 1996-08-10 Shock absorber KR0135407Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101331635B1 (en) * 2012-05-10 2013-11-20 (주)네오켐 Treatment agent for complex knitting textile and the knitting textile treated therewith

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101331635B1 (en) * 2012-05-10 2013-11-20 (주)네오켐 Treatment agent for complex knitting textile and the knitting textile treated therewith

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