[특허]Multilayer film

Multilayer film 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-027/36 B32B-027/08 B32B-037/15 B29C-047/04 B29C-049/04 C08G-064/02 B29C-047/06 B29C-047/00 B29K-069/00 B29K-105/00
출원번호	US-0287498 (2011-11-02)
등록번호	US-9050743 (2015-06-09)
우선권정보	KR-10-2011-0004855 (2011-01-18)
발명자 / 주소	Choi, MoonJung Jeon, MinHo Yoo, JiEun Ok, MyungAhn Chung, KwangJin
출원인 / 주소	SK INNOVATION CO., LTD.
대리인 / 주소	Cantor Colburn LLP
인용정보	피인용 횟수 : 0 인용 특허 : 27

초록 ▼

Provided is a molded body in which at least one surface layer made of a copolyester polymer is laminated on one surface or both surfaces of a base layer made of aliphatic polycarbonate. When coextruding aliphatic polycarbonate and copolyester polymer, two layers adhere well to each other and are hardly delaminated from each other even without an adhesive and a tie layer, oxygen barrier property and low-temperature heat seal property can be provided as compared with a case where the copolyester polymer alone is used, the cost can be reduced because a separate adhesive or a tie layer is not required, and the manufacturing cost can be significantly reduced because the constitution of layers is simplified.

대표청구항 ▼

1. A multilayer film comprising, a base layer, wherein the base layer has an average thickness of 40 μm to 50 μm and consists of an aliphatic polycarbonate; anda surface layer laminated on a top surfaces of the base layer and on a bottom surface of the base layer, wherein each surface layer has an average thickness of 60 μm to 75 μm and comprises one or more copolyester polymer selected from poly(butylene adipate-co-terephthalate) and poly(butylene succinate);wherein the aliphatic polycarbonate is a copolymer of carbon dioxide and one or more epoxide compounds, wherein the one or more epoxide compounds are selected from the group consisting of (C2-C10) alkylene oxide substituted or unsubstituted with halogen or alkoxy; (C4-C20) cycloalkylene oxide substituted or unsubstituted with halogen or alkoxy; and (C8-C20) styrene oxide substituted or unsubstituted with halogen, alkoxy, alkyl, or aryl, and the aliphatic polycarbonate copolymer has a glass transition temperature (Tg) of 0 to 40° C., and wherein the aliphatic polycarbonate is polypropylene carbonate;wherein the base layer and the surface layer are laminated by coextrusion, wherein the coextrusion is performed by melt extruding the aliphatic polycarbonate at a temperature of 120 to 210° C. and the copolyester polymer at a temperature of 160 to 250° C. and then coextruding the aliphatic polycarbonate and the copolyester polymer using a blown or casting type of film molding machine, andwherein the multilayer film is a three-layer film consisting of the base layer and the surface layers and does not include an adhesive layer or a tie layer, and the base layer and the surface layers are not delaminated in a delamination test using adhesive tape when performed on the multilayer film having an average thickness of 170 μm to 190 μm, a width of 5 cm and a length of 20 cm. 2. A method for manufacturing a multilayer film, comprising: a) preparing a first resin composition consisting of an aliphatic polycarbonate copolymer, wherein the aliphatic polycarbonate copolymer is obtained by reacting carbon dioxide and one or more epoxide compounds, wherein the one or more epoxide compounds is selected from the group consisting of (C2-C10) alkylene oxide substituted or unsubstituted with halogen or alkoxy; (C4-C20) cycloalkylene oxide substituted or unsubstituted with halogen or alkoxy; and (C8-C20) styrene oxide substituted or unsubstituted with halogen, alkoxy, alkyl, or aryl, and the aliphatic polycarbonate copolymer has a glass transition temperature (Tg) of 0 to 40° C., wherein the aliphatic polycarbonate is polypropylene carbonate;b) preparing a second resin composition comprising one or more copolyester polymer selected from poly(butylene adipate-co-terephthalate) and poly(butylene succinate);c) melting the first resin composition and the second resin composition;d) coextruding the first resin composition and the second resin composition using a blown or casting type of film molding machine, wherein the coextrusion is performed by melt extruding the first resin composition at a temperature of 120 to 210° C. and the second resin composition at a temperature of 180 to 250° C.; ande) forming a multilayer film,wherein the multilayer film is a three-layer film consisting of a base layer, a surface layer laminated on a top surface of the base layer and a surface layer laminated on a bottom surface of the base layer, and the multilayer film does not include an adhesive layer or a tie layer, andwherein the base layer is formed from the first resin composition and has an average thickness of 40 μm to 50 μm, and each surface layer is formed from the second resin composition and has an average thickness of 60 μm to 75 μm;wherein the base layer and the surface layers are not delaminated in a delamination test using adhesive tape when performed on the multilayer film having an average thickness of 170 um to 190 um, a width of 5 cm and a length of 20 cm.

이 특허에 인용된 특허 (27)

Dhara,Dibakar; Shaikh,Abbas Alli G.; Chatterjee,Gautam; Seetharaman,C., Aliphatic diol polycarbonates and their preparation.
상세보기
Chatterjee, Guatam; Dhara, Dibakar; Jegathesan, Muthuvijayan, Aliphatic diol-based polycarbonates, method of making, and articles formed therefrom.
상세보기
Brack, Hans-Peter; Campman, Maarten Antoon Jan; Garcia Agudo, Jorge; Kamps, Jan Henk; Looij, Hans; Olmedo Fernandez, Fernando; Willemse, Dennis James Patrick Maria, Aliphatic polycarbonates, methods of making, and articles formed therefrom.
상세보기
Hayes,Richard Allen, Aliphatic-aromatic polyetherester compositions, articles, films, coating and laminates and processes for producing same.
상세보기
Bastioli,Catia; Bellotti,Vittorio; Cella,Gian Domenico; Del Giudice,Luciano; Montino,Sandro; Perego,Gabriele, Biodegradable polymeric compositions comprising starch and a thermoplastic polymer.
상세보기
Wnuk Andrew J. (Wyoming OH) Koger ; II Thurman J. (Hamilton OH) Young Terrill A. (Cincinnati OH), Biodegradable, liquid impervious multilayer film compositions.
상세보기
Liu, Jingjiang; Sun, Chunrong, Blends of carbon dioxide-propylene oxide copolymer and poly (3-hydroxyalkanoate) and a method of making the same.
상세보기
Zhao, Xiaojiang; Wang, Xianhong; Wang, Fosong, Catalyst for producing aliphatic polycarbonate and the preparation thereof.
상세보기
Utz Helmar,DEX, Composite films.
상세보기
Dixon Dale D. (Kutztown PA) Ford Michael E. (Center Valley PA) Mantell Gerald J. (Allentown PA), End capped polyalkylene carbonates.
상세보기
Dixon ; Dale D. ; Ford ; Michael E. ; Mantell ; Gerald J., End capped polyalkylene carbonates having improved thermal stability.
상세보기
Gross, Richard A.; Jiang, Zhaozong, Enzyme-catalyzed polycarbonate and polycarbonate ester synthesis.
상세보기
Hattori, Ryoji, IC card.
상세보기
Kesling ; Jr. Haven S. (Drexel Hill PA) Cannarsa Michael J. (Lafayette Hill PA) Sun Hsiang-Ning (Houston TX), Melt processable aliphatic polycarbonate terpolymers.
상세보기
Okamura Takaaki (Yanai JPX) Matsui Kenzo (Yamaguchi-ken JPX) Inui Tsuneo (Tokuyama JPX), Metal sheet laminated with triple layered thermoplastic resin and a method for production thereof.
상세보기
Zhao, Xiaojiang; Wang, Xianhong; Wang, Fosong, Method of preparation for a degradable, water and oil resistant protective membrane.
상세보기
Moon,Seung Jae; Ree,Moon Hor; Kim,Jong Sung; Kim,Kie Soo, Method of preparing catalyst for polymerization of aliphatic polycarbonate and method of polymerizing aliphatic polycarbonate.
상세보기
Moon,Seung Jae; Ree,Moon Hor; Kim,Jong Sung; Kim,Kie Soo, Method of preparing catalyst for polymerization of aliphatic polycarbonate and method of polymerizing aliphatic polycarbonate using same.
상세보기
Allen, Scott D., Methods of controlling molecular weight distribution of polymers and compositions thereof.
상세보기
Schoenheider, Cecile J., Moldable compositions.
상세보기
Mihalich James M. (Rexford NY), Multilayered articles formed by coextrusion of polycarbonate and polyester.
상세보기
Takagi, Kiyoji; Kokubo, Akihiro; Nishida, Koji, Multilayered molding.
상세보기
Noordover, Bart; Duchateau, Robbert; Koning, Cornelis; Van Benthem, Rudolfus; Haveman, Daniel, Polycarbonate and process for producing the same.
상세보기
Fujimori Takayasu,JPX ; Nakamura Kenichi,JPX ; Hirata Masukazu,JPX, Polycarbonate resin and process for producing the same.
상세보기
Luinstra, Gerrit, Preparation and use of ultrahigh-molecular-weight polycarbonates.
상세보기
Santangelo Joseph G. (Allentown PA) Weber James J. (Allentown PA) Sinclair Richard G. (Columbus OH), Process for producing novel block alkylene polycarbonate copolymers.
상세보기
Sant\Angelo Joseph G. (South Whitehall Township ; Lehigh County PA), Substantially crystalline poly(alkylene carbonates), laminate and methods of making.
상세보기

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

저장형식

Text(ASCII format)
Excel format
PIAS분석(.xls)

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

연합인증

Multilayer film 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (27)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Multilayer film 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (27)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트