KR970702136A - CORE MATERIAL AND PROCESS FOR INJECTION MOLDING - Google Patents

CORE MATERIAL AND PROCESS FOR INJECTION MOLDING

Info

Publication number
KR970702136A
KR970702136A KR1019960705523A KR19960705523A KR970702136A KR 970702136 A KR970702136 A KR 970702136A KR 1019960705523 A KR1019960705523 A KR 1019960705523A KR 19960705523 A KR19960705523 A KR 19960705523A KR 970702136 A KR970702136 A KR 970702136A
Authority
KR
South Korea
Prior art keywords
core material
core
pva
range
injection molding
Prior art date
Application number
KR1019960705523A
Other languages
Korean (ko)
Inventor
노리히토 시바하라
오사무 사와지리
Original Assignee
워렌 리차드 보비
미네소타 마이닝 앤드 매뉴팩츄어링 컴패니
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 워렌 리차드 보비, 미네소타 마이닝 앤드 매뉴팩츄어링 컴패니 filed Critical 워렌 리차드 보비
Publication of KR970702136A publication Critical patent/KR970702136A/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4457—Removing or ejecting moulded articles for undercut articles using fusible, soluble or destructible cores
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • 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
    • B29K2829/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof, as mould material
    • B29K2829/04—PVOH, i.e. polyvinyl alcohol
    • 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
    • B29K2871/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as mould material
    • B29K2871/02—Polyalkylene oxides, e.g. PEO, i.e. polyethylene oxide, or derivatives thereof

Abstract

본 발명은 폴리비닐 알콜(PVA) 및 폴리에틸렌 산화물(PEO)의 공중합체를 함유하는 사출 성형을 위한 코어 재료 뿐만 아니라 상기 코어 재료로 제조된 코어에 관한 것이다.The present invention relates to a core material for injection molding containing a copolymer of polyvinyl alcohol (PVA) and polyethylene oxide (PEO) as well as to a core made of said core material.

Description

사출 성형을 위한 코어 재료 및 이의 제조 방법(CORE MATERIAL AND PROCESS FOR INJECT10N MOLDING)CORE MATERIAL AND PROCESS FOR INJECT 10 N MOLDING

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (10)

폴리비닐 알콜(PVA) 및 폴리에틸렌 산화물(PEO)의 공중합체를 함유하는 사출 성형을 위한 코어 재료.A core material for injection molding containing a copolymer of polyvinyl alcohol (PVA) and polyethylene oxide (PEO). 제1항에 있어서, 상기 중합체 내의 PVA와 PEO의 몰비가 99 : 1 내지 50 : 50 범위 내인 코어 재료.The core material of claim 1, wherein the molar ratio of PVA and PEO in the polymer is in the range of 99: 1 to 50:50. 제1항에 있어서, 상기 PVA의 비누화도가 65 내지 99 몰% 범위 내인 코어 재료.The core material of claim 1, wherein the saponification degree of the PVA is in the range of 65 to 99 mol%. 제1항에 있어서, 상기 코어 재료의 유리 전이 온도(Tg)가 40 내지 100℃ 범위 내인 코어 재료.The core material of claim 1, wherein the glass transition temperature (Tg) of the core material is in a range from 40 to 100 ° C. 3. 제1항에 있어서, 상기 코어 재료의 용융 지수(MI)가 0.1 내지 50 범위 내인 코어 재료.The core material of claim 1, wherein the melt index (MI) of the core material is in the range of 0.1-50. 제1항에 있어서, 옥사졸린 화합물, PVA 및/또는 PEO를 추가로 함유하는 코어 재료.The core material of claim 1 further comprising an oxazoline compound, PVA and / or PEO. 제1항에 따른 코어 재료를 150℃ 이상의 온도에서 용융시키는 단계와 상기 용융된 코어 재료를 주형 내로 사출 성형하는 단계를 포함하는 것을 특징으로 하는 코어의 제조 방법.A method for producing a core, comprising melting the core material of claim 1 at a temperature of at least 150 ° C. and injection molding the molten core material into a mold. 제7항에 따른 방법으로 제조된 코어를 이용하여 제조된 사출 성형된 제품.An injection molded article made using a core made by the method according to claim 7. 제8항에 있어서, 상기 제품이 전면 패스너인 사출 성형된 제품.The injection molded article of claim 8 wherein said article is a front fastener. 제1항에 따른 코어를 주형 내에 위치시키는 단계와 사출 성형된 제품을 위한 재료를 상기 주형 내로 사출하는 단계를 포함하는 것을 특징으로 하는 사출 성형된 제품의 제조 방법.A method of making an injection molded article, comprising positioning the core according to claim 1 in a mold and injecting material for the injection molded article into the mold. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960705523A 1994-04-05 1995-04-03 CORE MATERIAL AND PROCESS FOR INJECTION MOLDING KR970702136A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP94-66918 1994-04-05
JP6066918A JPH07276372A (en) 1994-04-05 1994-04-05 Core material and its use
PCT/US1995/004194 WO1995026864A1 (en) 1994-04-05 1995-04-03 Core material and process for injection molding

Publications (1)

Publication Number Publication Date
KR970702136A true KR970702136A (en) 1997-05-13

Family

ID=13329845

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960705523A KR970702136A (en) 1994-04-05 1995-04-03 CORE MATERIAL AND PROCESS FOR INJECTION MOLDING

Country Status (6)

Country Link
EP (1) EP0754109A1 (en)
JP (1) JPH07276372A (en)
KR (1) KR970702136A (en)
CN (1) CN1144502A (en)
CA (1) CA2187180A1 (en)
WO (1) WO1995026864A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6228923B1 (en) * 1997-04-02 2001-05-08 Stratasys, Inc. Water soluble rapid prototyping support and mold material
US6070107A (en) * 1997-04-02 2000-05-30 Stratasys, Inc. Water soluble rapid prototyping support and mold material
US6067480A (en) * 1997-04-02 2000-05-23 Stratasys, Inc. Method and apparatus for in-situ formation of three-dimensional solid objects by extrusion of polymeric materials
JP4071846B2 (en) * 1997-06-03 2008-04-02 大成プラス株式会社 Method for producing plastic molded body
JP2001293742A (en) * 2000-04-11 2001-10-23 Daisee Kogyo Kk Method for manufacturing injection-molded article
ATE449796T1 (en) 2001-05-14 2009-12-15 Kuraray Co MODIFIED ETHYLENE-VINYL ALCOHOL COPOLYMER AND PROCESS FOR PRODUCTION THEREOF
CN106496908A (en) * 2016-10-07 2017-03-15 常州创索新材料科技有限公司 A kind of preparation method of water soluble core-mould material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639507A (en) * 1966-09-07 1972-02-01 Trw Inc Plastic pattern material for investment casting
DE69118622T2 (en) * 1990-09-04 1996-09-19 Nippon Synthetic Chem Ind Biodegradable, melt-molded articles, laminates made from them and their use
US5242646A (en) * 1992-05-07 1993-09-07 Minnesota Mining And Manufacturing Company Method of making an interengaging fastener member
JP3029347B2 (en) * 1992-07-24 2000-04-04 理研ビニル工業株式会社 Core composition

Also Published As

Publication number Publication date
MX9604403A (en) 1997-07-31
JPH07276372A (en) 1995-10-24
WO1995026864A1 (en) 1995-10-12
CA2187180A1 (en) 1995-10-12
CN1144502A (en) 1997-03-05
EP0754109A1 (en) 1997-01-22

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