KR20040013437A - Silicone earplug manufacturing method - Google Patents

Silicone earplug manufacturing method Download PDF

Info

Publication number
KR20040013437A
KR20040013437A KR1020020046364A KR20020046364A KR20040013437A KR 20040013437 A KR20040013437 A KR 20040013437A KR 1020020046364 A KR1020020046364 A KR 1020020046364A KR 20020046364 A KR20020046364 A KR 20020046364A KR 20040013437 A KR20040013437 A KR 20040013437A
Authority
KR
South Korea
Prior art keywords
silicon
silicone
mixed
mixing
earplug
Prior art date
Application number
KR1020020046364A
Other languages
Korean (ko)
Inventor
전경섭
Original Assignee
전경섭
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 전경섭 filed Critical 전경섭
Priority to KR1020020046364A priority Critical patent/KR20040013437A/en
Publication of KR20040013437A publication Critical patent/KR20040013437A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/38—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/44—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B2013/005—Degassing undesirable residual components, e.g. gases, unreacted monomers, from material to be moulded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0058—Liquid or visquous
    • B29K2105/0061—Gel or sol

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

PURPOSE: A method for manufacturing a silicone earplug is provided to prevent the solidification of the earplug by mixing liquid silicone and silicone gel into the earplug. CONSTITUTION: A method for manufacturing a silicone earplug comprises the steps of: mixing liquid silicone and silicone gel into mixed silicone by a stirrer(10)(S1); injecting the mixed silicone into a vacuum device(12), and removing air from the mixed silicone(S2); filling the mixed silicone into a mold; and conveying the mold by a conveyor belt, and heating and hardening the mixed silicone.

Description

실리콘 귀마개의 제조방법{SILICONE EARPLUG MANUFACTURING METHOD}How to manufacture silicone earplugs {SILICONE EARPLUG MANUFACTURING METHOD}

본 발명은 실리콘 귀마개의 제조방법에 관한 것으로, 특히 오랜시간 사용하여도 복원력의 상실되어 고형됨이 없도록 하는 실리콘 귀마개의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a silicone earplug, and more particularly, to a method for manufacturing a silicone earplug such that there is no loss of restoring force even after long use.

일반적으로 귀마개는 군대의 포사격장 또는 소음이 심한 산업현장이서 작업자의 귀를 막아 시끄러운 소음으로 부터 고막을 보호하거나 사용자가 숙면을 하기 위하여 사용된다.In general, earplugs are used in military shooting ranges or in a noisy industrial site, which blocks the ears of workers and protects the eardrum from loud noises or for the user to have a good night's sleep.

상기와 같이 사용되는 종래의 귀마개는 재질이 매우 단단한 플라스틱이나 ABS수지로 제조되어 이를 오랜시간 사용하게 되면 사용자의 귀가 통증을 일으키는 문제점이 있었다.Conventional earplugs used as described above are made of a very hard plastic material or ABS resin, and when used for a long time, there is a problem of causing ear pain in the user.

이와 같은 문제점을 해결하기 위하여 대한민국실용신안출원1996-30875호가 제안되었다.In order to solve this problem, Korean Utility Model Application No. 1996-30875 has been proposed.

도 1은 상기 대한민국실용신안출원1996-30875호에 따른 종래의 구성을 나타내는 것으로, 크기가 다른 두개의 구(1,2)와 이를 연결하는 연결대(3)로 이루어지며, 또한 연결끈(4)에 의하여 동일한 모양의 크기가 다른 두개의 구(1',2')와 이를 연결하는 연결대(3')로 구성되며, 재질을 인체에 무해하고 실리콘으로 구성한 것이다.Figure 1 shows a conventional configuration according to the Republic of Korea Utility Model Application No. 1996-30875, consisting of two spheres (1, 2) of different sizes and connecting rods (3) connecting them, and also connecting string (4) It consists of two spheres (1 ', 2') and the connecting rod (3 ') connecting them with different sizes of the same shape, the material is harmless to the human body and made of silicon.

이와 같은 종래의 구성으로 이루어지는 순수한 실리콘만으로 형성되는 귀마개는 오랜시간 사용하게 되면 고형되어 단단해지며, 또한 실리콘으로 성형할때에 실리콘이 먼지나 공기가 삽입되어 기포가 발생하여 기포가 발생한 부분이 쉽게 파손되어 사용자의 귀에 통증을 유발하게 되는 문제점과 복원력을 상실하게 되어 귀마개의 본래의 기능인 소음차단 효과가 떨어지는 문제점이 있었다.Earplugs made of pure silicon made of such a conventional configuration are solid and hard when used for a long time. Also, when molding into silicon, air bubbles are generated due to the insertion of dust or air into the silicon, so that the air bubbles are easily damaged. There is a problem that causes a pain in the user's ear and the loss of the restoring power has a problem that the noise blocking effect which is the original function of the ear plug falls.

이에 본 발명은 상기와 같은 종래의 문제점을 감안하여 안출한 것으로 실리콘의 기포발생을 방지하고 액상의 실리콘과 젤상의 실리콘을 적절하게 배합하여 복원력이 우수한 실리콘 귀마개의 제조방법을 제공함을 목적으로 한다.Accordingly, the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a method for preparing a silicone earplug having excellent restoring force by preventing bubble generation of silicon and by appropriately blending liquid silicone and silicone gel.

상기한 목적을 달성하기 위하여 본 발명은 액상의 실리콘과 젤상의 실리콘을 교반기로 혼합하여 혼합실리콘을 형성하는 실리콘 혼합단계와, 상기 실리콘 혼합단계를 거쳐 생성된 혼합실리콘을 진공장치에 투입하여 진공장치내에서 진공상태로 하여 혼합실리콘의 교반할때에 혼합실리콘내부에 생성되는 미세공기를 제거하는 미세공기제거 실리콘을 형성하는 진공단계와, 상기 진공단계를 거쳐 생성되는 미세공기제거 실리콘을 귀마개형상의 금형에 충진시키는 성형단계와, 상기 성형단계에서 충진된 금형을 컨베어밸트로 이동시키면서 150℃내지 170℃의 열로 50초 내지 70초정도 가열하여 경화시키는 경화단계로 구성되어지는 것을 특징으로 하는 것이다.In order to achieve the above object, the present invention is a silicon mixing step of forming a mixed silicon by mixing the liquid silicon and the silicon on the gel with a stirrer, and the mixed silicon produced through the silicon mixing step into a vacuum apparatus A vacuum step of forming a micro-air removal silicon to remove the micro air generated inside the mixed silicon when the mixed silicon is stirred in a vacuum state, and the micro air removal silicon generated through the vacuum step in the form of earplugs It is characterized in that it comprises a molding step of filling the mold and a curing step of curing by heating about 50 seconds to 70 seconds with a heat of 150 ℃ to 170 ℃ while moving the mold filled in the molding step to the conveyor belt.

또한 상기 혼합단계의 혼합실리콘은 액상의 실리콘 80중량%와 젤상의 실리콘 20중량%로 혼합되어 형성되는 것을 특징으로 하는 것이다.In addition, the mixed silicon of the mixing step is characterized in that it is formed by mixing 80% by weight of the liquid silicone and 20% by weight of the silicone silicon.

도 1은 종래의 고안에 따른 귀마개를 나타내는 사시도,1 is a perspective view showing an earplug according to a conventional design,

도 2는 본 발명에 따른 실리콘을 형성하는 방법을 설명한 설명도,2 is an explanatory diagram illustrating a method of forming silicon according to the present invention;

도 3은 본 발명에 따른 귀마개를 제조하는 방법을 설명한 설명도이다.3 is an explanatory diagram illustrating a method of manufacturing the earplug according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

S1 : 혼합단계 S2 : 진공단계S1: Mixing Step S2: Vacuum Step

S3 : 성형단계 S4 : 경화단계S3: forming step S4: curing step

10 : 교반기 12 : 진공장치10: stirrer 12: vacuum apparatus

14 : 실리콘주입기 16 : 금형14 silicon injector 16 mold

18 : 콤베어18: comveyor

이에 상기한 바와같은 본 발명의 바람직한 실시예를 첨부도면에 의거하여 상세히 설명하면 다음과 같다.The preferred embodiment of the present invention as described above will be described in detail based on the accompanying drawings.

본 발명은 액상의 실리콘과 젤상의 실리콘을 교반기로 혼합하여 혼합실리콘을 형성하는 실리콘 혼합단계(S1)와, 상기 실리콘 혼합단계(S1)를 거쳐 생성된 혼합실리콘을 진공장치(12)에 투입하여 진공장치(12)내에서 진공상태로 하여 혼합실리콘의 교반할때에 혼합실리콘내부에 생성되는 미세공기를 제거하는 미세공기제거 실리콘을 형성하는 진공단계(S2)와, 상기 진공단계(S2)를 거쳐 생성되는 미세공기제거 실리콘을 귀마개형상의 금형에 충진시키는 성형단계(S3)와, 상기성형단계(S3)에서 충진된 금형(32)을 컨베어밸트로 이동시키면서 150℃내지 170℃의 열로 50초 내지 70초정도 가열하여 경화시키는 경화단계(S4)로 구성되는 것이다.The present invention is a silicon mixing step (S1) of mixing the liquid silicon and the silicon of the gel phase with a stirrer to form a mixed silicon, and the mixed silicon produced through the silicon mixing step (S1) to the vacuum device 12 The vacuum step (S2) and the vacuum step (S2) to form a micro-air removal silicon to remove the micro-air generated in the mixed silicon when the mixed silicon is stirred in the vacuum device 12 in a vacuum state Molding step (S3) for filling the micro-air removal silicon generated through the earplug-shaped mold and the mold 32 filled in the molding step (S3) to the conveyor belt for 50 seconds with a heat of 150 ℃ to 170 ℃ It is composed of a curing step (S4) to the heat by about 70 seconds to cure.

즉, 도 2는 본 발명에 의한 액상의 실리콘과 젤상의 실리콘을 교반기(10)로 혼합하여 실리콘을 진공장치(12)에 삽입하여 기포와 공기, 가스를 완전하게 제거하는 단계를 나타내는 것으로, 액상의 실리콘 80중량% 와 젤상의 실리콘 20중량%를 혼합하는 혼합단계와 혼합된 실리콘을 진공장치(12)에 의하여 먼지나 공기를 제거하는 진공단계(2)를 거치게 된다.That is, Figure 2 shows the step of completely removing the air bubbles, air and gas by inserting the silicon into the vacuum device 12 by mixing the liquid silicone and gel silicone in the stirrer 10 according to the present invention, The mixing step of mixing 80% by weight of silicon and 20% by weight of silicon on the gel and the mixed silicon is subjected to a vacuum step (2) to remove dust or air by the vacuum device (12).

도 3은 진공장치(12)에 의하여 먼지나 공기를 제거한 실리콘(S)을 귀마개의 형상에 따라 형성된 금형(16)에 실리콘주입기(14)에 의하여 충진하는 성형단계(3)와, 충진된 실리콘의 금형을 콘베어밸트(11)로 콤베어(18)로 이송하여 콤베어(18)에서 가열하여 성형시키는 경화단계(4)로 이루어지는 것이다.3 is a molding step (3) of filling the mold (16) formed according to the shape of the ear plug with the silicon (S) from which the dust or air is removed by the vacuum device 12 by the silicon injector 14, and the filled silicon It is made of a curing step (4) to transfer the mold of the conveyor belt (11) to the conveyor (18) by heating in the conveyor (18).

즉, 액상의 실리콘 80중량%와 젤상의 실리콘 20중량%로 혼합함으로써 복원력을 갖게 하여 교반기(10)로 혼합하고, 혼합된 실리콘을 진공장치(12)에 넣어 기포와 공기, 가스를 완전하게 제거하고, 귀마개의 형상에 따라 형성된 금형에 상기 혼합되고 먼지나 가스등을 제거한 상기 실리콘을 실리콘주입기(14)로 금형(16)에 삽입하여 충진하는 성형단계(S3)와, 충진된 실리콘을 콘베어(18)에 넣어 가열하는 경화단계(S4)를 거쳐 실리콘귀마개(20)가 생산되는 것이다.That is, by mixing 80% by weight of the liquid silicone and 20% by weight of the silicone silicone to give a restoring force and mixed with the stirrer 10, the mixed silicon is put into the vacuum device 12 to completely remove bubbles, air and gas The mold is formed according to the shape of the ear plug, and the molding step (S3) of inserting and filling the mold 16 into the mold 16 using the silicon injector 14 to remove the dust or gas, etc., and the filled silicone conveyor 18 The silicone earplug 20 is produced through the curing step (S4) to be put into the heating.

상기 경화단계(S4)에서 가열되는 온도는 섭씨 150도 내지 170도의 온도로 가열함이 바람직하다.The temperature heated in the curing step (S4) is preferably heated to a temperature of 150 degrees to 170 degrees Celsius.

상기와 같이 구성되는 본 발명의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.

본 발명은 액상의 액상의 실리콘 80중량%와 젤상의 실리콘 20중량%로 혼합하여 교반기(10)로 혼합하여 복원력을 향상시키게 되며, 혼합된 실리콘을 진공장치(12)에 넣어 기포와 공기, 가스를 완전하게 제거하여 기포등이 발생하는것을 방지하여 제품의 품질저하를 방지하게 되는 것이다.The present invention is mixed with 80% by weight of the liquid silicone liquid and 20% by weight of the silicon silicone gel to be mixed with the stirrer 10 to improve the restoring force, the mixed silicon is put into the vacuum device 12, bubbles, air, gas By completely eliminating the bubble to prevent the occurrence of the product quality will be prevented.

또한 실리콘을 실리콘주입기(14)로 금형(16)에 삽입하여 성형하여 대량으로 생산할수 있는 것이다.In addition, the silicon is inserted into the mold 16 by the silicon injector 14 and molded to produce a large amount.

또한 귀마개를 다양한 형상이나 모양으로 용이하게 만들수가 있으며, 오랜시간을 사용하여도 고형됨을 방지하며 복원력이 향상시키게 되는 것이다.In addition, the earplugs can be easily made into various shapes and shapes, and will prevent the solidification even after a long time and improve the resilience.

이상에서 설명한 바와같이 본 발명은 액상과 젤상의 실리콘을 혼합하여 귀마개를 형성함으로써 고형됨을 방지하고, 또한 복원력을 향상시켜 제품의 성능 및 수명을 증대 시켜 신뢰감을 높일 수 있는 효과가 있다.As described above, the present invention has the effect of preventing solidification by mixing the liquid and the gel-like silicone to form an ear plug, and improving the resilience to increase the performance and life of the product, thereby increasing the reliability.

이상에서는 본 발명을 특정의 바람직한 실시예를 예를들어 도시하고 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위내에서 당해 고안이 속하는 기술분야에서 통상의 지식을 가진자에 의해 다양한 변경과 수정이 가능할 것이다.In the above, the present invention has been illustrated and described by way of specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

Claims (2)

액상의 실리콘과 젤상의 실리콘을 교반기로 혼합하여 혼합실리콘을 형성하는 실리콘 혼합단계와,A silicon mixing step of forming a mixed silicon by mixing the liquid silicon and the silicon on the gel with a stirrer; 상기 실리콘 혼합단계를 거쳐 생성된 혼합실리콘을 진공장치에 투입하여 진공장치내에서 진공상태로 하여 혼합실리콘의 교반할때에 혼합실리콘내부에 생성되는 미세공기를 제거하는 미세공기제거 실리콘을 형성하는 진공단계와,The mixed silicon produced through the silicon mixing step is introduced into a vacuum apparatus to form a vacuum in the vacuum apparatus to form micro-air removing silicon for removing the micro air generated in the mixed silicon when the mixed silicon is stirred. Steps, 상기 진공단계를 거쳐 생성되는 미세공기제거 실리콘을 귀마개형상의 금형에 충진시키는 성형단계와,A molding step of filling the mold with the earplug shape with the fine air removing silicon generated through the vacuum step; 상기 성형단계에서 충진된 금형을 컨베어밸트로 이동시키면서 150℃내지 170℃의 열로 50초 내지 70초정도 가열하여 경화시키는 경화단계로 구성되어지는 것을 특징으로 하는 실리콘귀마개의 제조방법.Method of manufacturing a silicone earplug, characterized in that consisting of a curing step of heating the mold filled in the molding step to the conveyor belt by heating for about 50 seconds to 70 seconds with a heat of 150 ℃ to 170 ℃. 제1항에 있어서;The method of claim 1; 상기 혼합단계의 혼합실리콘은 액상의 실리콘 80중량%와 젤상의 실리콘 20중량%로 혼합되어 형성되는 것을 특징으로 하는 실리콘귀마개의 제조방법.The mixing silicon of the mixing step is a silicon earplug manufacturing method, characterized in that formed by mixing 80% by weight of the liquid silicone and 20% by weight of the silicone silicon.
KR1020020046364A 2002-08-06 2002-08-06 Silicone earplug manufacturing method KR20040013437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020020046364A KR20040013437A (en) 2002-08-06 2002-08-06 Silicone earplug manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020046364A KR20040013437A (en) 2002-08-06 2002-08-06 Silicone earplug manufacturing method

Publications (1)

Publication Number Publication Date
KR20040013437A true KR20040013437A (en) 2004-02-14

Family

ID=37320769

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020046364A KR20040013437A (en) 2002-08-06 2002-08-06 Silicone earplug manufacturing method

Country Status (1)

Country Link
KR (1) KR20040013437A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0342213A (en) * 1989-07-07 1991-02-22 Toyoda Gosei Co Ltd Preparation of split mold
US5071331A (en) * 1990-08-27 1991-12-10 Cabot Safety Corporation Mold for foam products
JPH0662911A (en) * 1992-08-18 1994-03-08 Siegel:Kk Manufacture of silicone gel part
JPH0732499A (en) * 1993-07-16 1995-02-03 Inoac Corp Packing material made of elastomer and liquid crystal display employing the material
JPH09330628A (en) * 1996-06-06 1997-12-22 Takaoka Electric Mfg Co Ltd Manufacture of resin insulator and its device
KR20010000736A (en) * 2000-10-16 2001-01-05 김영철 Molding method for manufactured goods utilizing silicon gum

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0342213A (en) * 1989-07-07 1991-02-22 Toyoda Gosei Co Ltd Preparation of split mold
US5071331A (en) * 1990-08-27 1991-12-10 Cabot Safety Corporation Mold for foam products
JPH0662911A (en) * 1992-08-18 1994-03-08 Siegel:Kk Manufacture of silicone gel part
JPH0732499A (en) * 1993-07-16 1995-02-03 Inoac Corp Packing material made of elastomer and liquid crystal display employing the material
JPH09330628A (en) * 1996-06-06 1997-12-22 Takaoka Electric Mfg Co Ltd Manufacture of resin insulator and its device
KR20010000736A (en) * 2000-10-16 2001-01-05 김영철 Molding method for manufactured goods utilizing silicon gum

Similar Documents

Publication Publication Date Title
US5782868A (en) Gel filled teething device
US7727433B2 (en) Hearing protective device and method of making the same
US3440314A (en) Method of making custom-fitted earplugs for hearing aids
JP7362823B2 (en) Customized elastomeric earmolds with secondary material injection
WO2002005015A3 (en) Device for inserting an injectable bag intraocular lens within a human eye
JP2004507377A5 (en)
US3833701A (en) Method of making an aural hearing protecting device
ATE390113T1 (en) USE OF MOLDING MATERIALS FOR PRODUCING TREATMENT DEVICES
GB2470177A (en) Moulded earpieces and adaptor and earphone for use therewith
KR20040013437A (en) Silicone earplug manufacturing method
CN110193950B (en) Multiple forming process of UV (ultraviolet) rubber earphone plug
EP0518264A3 (en) Anode protector
EP1160289A3 (en) Silicone rubber composition for extrusion molding and method of fabrication
JP3634184B2 (en) Elastic mold for stick lipstick molding
CN216877234U (en) Multifunctional gutta-percha rattle
WO2005009711A3 (en) Implant with improved homogeneity for plastic surgery and method fo the production thereof
EP0963770A1 (en) Malleable toy
GB2586744A (en) Eartips and earphone devices, and systems and methods therefore
JP2021051244A (en) Breast model composed of silicone elastic body having pressure sensor and manufacturing method therefor
JPS6428303A (en) Production of sintered magnet alloy
JPH0347039A (en) Method for forming chocolate
JPS6418609A (en) Manufacture of human body model
JP4387849B2 (en) Tennis ball and manufacturing method thereof
GB832311A (en) Improvements in or relating to ear protection
KR200304556Y1 (en) Insert Ear Phone

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application