KR920012217A - 발포 폴리올레핀 성형체의 제조방법 및 그 성형체를 발포절연층으로 하는 발포 절연전선의 제조방법 - Google Patents
발포 폴리올레핀 성형체의 제조방법 및 그 성형체를 발포절연층으로 하는 발포 절연전선의 제조방법 Download PDFInfo
- Publication number
- KR920012217A KR920012217A KR1019910023929A KR910023929A KR920012217A KR 920012217 A KR920012217 A KR 920012217A KR 1019910023929 A KR1019910023929 A KR 1019910023929A KR 910023929 A KR910023929 A KR 910023929A KR 920012217 A KR920012217 A KR 920012217A
- Authority
- KR
- South Korea
- Prior art keywords
- producing
- insulated wire
- boiling point
- group
- blowing agent
- Prior art date
Links
Classifications
-
- 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
- C08J9/14—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 organic
-
- 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
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
- B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/142—Insulating conductors or cables by extrusion of cellular material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Organic Insulating Materials (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 발포 절연 전선을 제조하기 위한 장치예를 나타낸 개략도이다.
Claims (9)
- 스크류형 압출기의 수지 투입구로부터 폴리 올레핀계 수지 조성물을 공급하는 공정과, 상기 수지 투입구와 상기 압출기의 압출구와의 도중에서 발포제를 주입하는 공정 및, 상기 폴리올레핀계 수지 조성물과 상기 발포제와의 용융혼화물을 압출성형하는 공정으로 이루어지며, 상기 발포제가 100℃이하의 비점을 갖는 에테르, 에스테르, 케톤 및 포화 탄화수소의 군에서 선택되는 적어도 2종의 화합물의 혼합액, 또는 100℃이하의 비점을 갖는 에테르, 에스테르, 케톤 및 포화 탄화수소의 군에서 선택되는 적어도 1종의 화합물과, 100∼150℃의 비점을 갖는 에테르 에스테르, 케톤, 포화탄화수소 및 알콜의 군에서 선택되는 적어도 1종의 화합물과의 혼합액인 것을 특징으로 하는 발포 폴리올레핀 성형체의 제조방법.
- 스크류형 압출기의 수지 투입구로부터 폴리 올레핀계 수지 조성물을 공급하는 공정과 상기 수지 투입구와 상기 압출기의 압출구와의 도중에서 발포제를 주입하는 공정 및, 상기 폴리올레핀계 수지 조성물과 상기 발포제와의 용융 혼화물을 도체의 외주에 압출 피복하는 공정으로 이루어지며, 상기 발표제가 100℃이하의 비점을 갖는 에테르 에스테르, 케톤 및 포화 탄화수소의 군에서 선택되는 적어도 2종의 화합물의혼합액, 또는 100℃이하의 비점을 갖는 에테르, 에스테르, 케톤 및 포화 탄화수소의 군에서 선택되는 적어도 1종의 화합물과, 100∼150℃의 비점을 갖는 에테르, 에스테르, 케톤, 포화탄화수소 및 알콜의 군에서 선택되는 적어도 1종의 화합물과의 혼합액인 것을 특징으로하는 발포 절연 전선의 제조방법.
- 제2항에 있어서, 상기 에테르, 에스테르, 케톤 및 포화탄화수소의 군에서 선택되는 적어도 1종의 화합물이, 그 비점이 40℃ 이하인 것을 특징으로 하는 발포 절연 전선의 제조방법.
- 제3항에 있어서, 상기 화합물이 디에틸에테르인 것을 특징으로 하는 발포 절연전선의 제조방법.
- 제2항에 있어서, 상기 혼합액에서, 상기 100℃이하의 비점을 갖는 에테르, 에스테르, 케톤 및 포화탄화수소의 군에서 선택되는 적어도 1종의 화합물의 몰수가 상기 100∼150℃의 비점을 갖는 에테르, 에스테르, 케톤, 포화탄화수소 및 알콜의 군에서 선택되는 적어도 1종의 화합물의 몰수 보다도 큰 것을 특징으로 하는 발포 절연전선의 제조방법.
- 제2항에 있어서, 상기 발포제가 적어도 디에틸에테르와 초산 메틸에스테르를 함유하여 이루어지는 혼합액인 것을 특징으로 하는 발포 절연전선의 제조방법.
- 제2항에 있어서, 상기 발포제가 적어도 디에틸에테르와 초산에틸에스테르를 함유하여 이루어지는 혼합액인 것을 특징으로하는 발포 절연전선의 제조방법.
- 제2항에 있어서, 상기 발포제가 적어도 초산 메틸 에스테르와 초산 에틸 에스테르를 함유하여 이루어지는 혼합액인 것을 특징으로 하는 발포 절연 전선의 제조방법.
- 제2항에 있어서, 상기 발포제가 디에틸에테르와 초산메탈 에스테르의 혼합액으로서 양자의 혼합비가 몰 비로 2:1∼1:2인 것을 특징으로 하는 발포 절연 전선의 제조방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP90-406865 | 1990-12-26 | ||
JP40686590 | 1990-12-26 | ||
JP91-294257 | 1991-11-11 | ||
JP3294257A JPH0517613A (ja) | 1990-12-26 | 1991-11-11 | 発泡ポリオレフイン成形体の製造方法およびその成形体を発泡絶縁層とする発泡絶縁電線の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR920012217A true KR920012217A (ko) | 1992-07-25 |
Family
ID=26559744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910023929A KR920012217A (ko) | 1990-12-26 | 1991-12-23 | 발포 폴리올레핀 성형체의 제조방법 및 그 성형체를 발포절연층으로 하는 발포 절연전선의 제조방법 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0493110A3 (ko) |
JP (1) | JPH0517613A (ko) |
KR (1) | KR920012217A (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7312253B2 (en) * | 2004-09-03 | 2007-12-25 | Pactiv Corporation | Insulating thermoplastic foams made with methyl formate-based blowing agents |
US8309619B2 (en) | 2004-09-03 | 2012-11-13 | Pactiv LLC | Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams |
US7307105B2 (en) * | 2004-09-03 | 2007-12-11 | Pactiv Corporation | Thermoplastic foams made with methyl formate-based blowing agents |
WO2007101034A2 (en) * | 2006-02-22 | 2007-09-07 | Pactiv Corporation | Polyolefin foams made with methyl formate-based blowing agents |
US7977397B2 (en) | 2006-12-14 | 2011-07-12 | Pactiv Corporation | Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof |
EP2089460B1 (en) | 2006-12-14 | 2011-09-07 | Pactiv Corporation | Expanded and extruded biodegradable and reduced emission foams made with methyl formate-based blowing agents |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1220053A (en) * | 1967-01-23 | 1971-01-20 | Ici Ltd | Foamed thermoplastic polymers |
GB1230992A (ko) * | 1967-08-04 | 1971-05-05 | ||
US4344710A (en) * | 1980-06-10 | 1982-08-17 | Mobil Oil Corporation | Polymer foam extrusion system |
US4456572A (en) * | 1981-11-16 | 1984-06-26 | Shin-Etsu Chemical Co., Ltd. | Method for the preparation of a foamed body of a vinyl chloride-based resin composition |
US4663361A (en) * | 1985-12-24 | 1987-05-05 | The Dow Chemical Company | Expandable polyolefin compositions and preparation process utilizing isobutane blowing agent |
-
1991
- 1991-11-11 JP JP3294257A patent/JPH0517613A/ja active Pending
- 1991-12-23 KR KR1019910023929A patent/KR920012217A/ko not_active Application Discontinuation
- 1991-12-24 EP EP19910312011 patent/EP0493110A3/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0493110A3 (en) | 1992-12-02 |
JPH0517613A (ja) | 1993-01-26 |
EP0493110A2 (en) | 1992-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE424838B (sv) | Forfarande for framstellning av skummade termoplaster, sasom olefinpolymerisater eller olefinblandpolymerisater, elaster eller termoplastiska gummityper, som er fornetbara | |
NO309194B1 (no) | Skumplastplater fremstilt under anvendelse av halogenfrie esemidler og fremgangsmåte for fremstilling derav | |
JPS555934A (en) | Polyacetal resin composition | |
IE38291B1 (en) | Acrylonitrile polymer compositions and filaments formed therefrom | |
JP3143115B2 (ja) | 熱可塑性合成物質から発泡物質を製造する方法およびこの方法を実施するための押出成形機 | |
JPS6427924A (en) | Method for manufacturing synthetic substance mixture, which can be foamed, and extruder line | |
KR927003704A (ko) | C20-24 지방산의 글리세롤 모노에스테르를 포함하는 폴리올레핀 조성물 및 이로부터 제조된 발포성 제품 | |
KR920012217A (ko) | 발포 폴리올레핀 성형체의 제조방법 및 그 성형체를 발포절연층으로 하는 발포 절연전선의 제조방법 | |
US4176978A (en) | Pencil sheath and composition therefor | |
JPS56125437A (en) | Foaming synthetic resin composition | |
KR830009195A (ko) | 안정하고 균질한 내연기관용 연료조성물 및 그의 제조방법 | |
JPH03233814A (ja) | 高発泡絶縁押出機 | |
US5391335A (en) | Method of producing a foam-insulated electric wire using a blowing agent mixture | |
GB1230992A (ko) | ||
KR940018417A (ko) | 포화폴리에스테르수지발포체의 제조방법 | |
GB1182964A (en) | Process for the Production of Foamed or Foamable Resin Compositions. | |
JPS5679131A (en) | Preparation of resin foam highly loaded with inorganic material | |
DE863959C (de) | Verfahren zur Herstellung poroeser, dielektrisch hochwertiger Isolierungen aus thermoplastischen Kunststoffen | |
US3194866A (en) | Method of forming a sheet | |
JPS5527320A (en) | Production of foamed polypropylene | |
JPS55125126A (en) | Molded product of foamable resin | |
JPH07116311B2 (ja) | ポリエチレン系樹脂発泡体の製造方法 | |
JPH0440379B2 (ko) | ||
JPS57192441A (en) | Resin composition for plating and plating method | |
JPS6054173B2 (ja) | 難燃性のスチレン系樹脂発泡体の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |