[특허]Method for producing a thermoplastic film

Method for producing a thermoplastic film 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-059/16 B29C-071/04 B29C-035/02 B29C-035/08 B29C-051/46 B29C-051/12 B29C-051/26 B29C-051/00 B29C-059/04 B29K-023/00 B29K-105/04 B29K-105/24 B29K-105/00 B29L-007/00 B29L-031/30
출원번호	US-0938367 (2013-07-10)
등록번호	US-9902107 (2018-02-27)
발명자 / 주소	Buehring, Juergen
출원인 / 주소	Benecke-Kaliko AG
대리인 / 주소	Greenberg, Laurence A.
인용정보	피인용 횟수 : 0 인용 특허 : 27

초록 ▼

In a method for producing a thermoplastic film having a three-dimensionally textured, embossed surface, the film is subjected prior to a subsequent shaping kind of processing step to electron-beam crosslinking, which differently crosslinks the individual surface-area regions of the film, so that the regions that undergo greater degrees of drawing out during deforming have different degrees of crosslinking than their neighboring regions.

대표청구항 ▼

1. A process for crafting a thermoplastic film having a three-dimensionally structured surface, the process comprising the steps of: providing a film having a surface with an embossed surface structure formed in an embossing method of a preceding shaping step;subjecting the film to electron beam crosslinking for crosslinking individual regions of the film surface differently from each other and substantially in a manner such that regions of the film surface subjected to higher degrees of drawing in a subsequent shape-imparting processing step have degrees of crosslinking differing from neighboring regions of the film surface;performing the electron beam crosslinking by applying doses of radiation on two sides of the film such that the degrees of crosslinking on the two sides of the film are different due to the radiation; andsubsequently subjecting the film to the shape-imparting processing step. 2. The process according to claim 1, wherein the regions subjected to higher degrees of drawing in the subsequent shape-imparting processing step have higher degrees of crosslinking than the neighboring regions. 3. The process according to claim 1, which further comprises effecting the electron beam crosslinking of the film by irradiation of at least one film surface with an electron beam source several times at least in regions. 4. The process according to claim 1, which further comprises: carrying out the electron beam crosslinking of a film surface line by line in succession; andadjusting a beam width of the electron beam with an aid of an aperture. 5. The process according to claim 3, which further comprises disposing a mask which changes an intensity of electron radiation at least in partial regions of a beam cross section between an electron beam source and an irradiated film surface. 6. The process according to claim 1, which further comprises performing a shape-imparting thermoforming step as the shape-imparting processing step. 7. The process according to claim 1, which further comprises providing the thermoplastic film as a multilayer polymer film composite. 8. The process according to claim 1, which further comprises providing the thermoplastic film with a thickness of 0.4 to 4 mm. 9. The process according to claim 1, which further comprises providing the regions subjected to higher degrees of drawing in the subsequent shape-imparting processing step with a gel content of at least 30%. 10. The process according to claim 1, which further comprises providing the regions subjected to higher degrees of drawing in the subsequent shape-imparting processing step with a gel content of 40 to 60%. 11. The process according to claim 1, which further comprises providing a difference in a gel content between regions of the film which have a high degree of crosslinking and regions of the film which have a low degree of crosslinking to be from 10 to 60%. 12. The process according to claim 1, which further comprises providing a difference in a gel content between regions of the film which have a high degree of crosslinking and regions of the film which have a low degree of crosslinking to be from 20 to 50%. 13. The process according to claim 1, wherein the shape-imparting processing step includes drawing the film into a mold.

이 특허에 인용된 특허 (27)

Babrowicz Robert ; Gauthier William John ; Morgan Charles Robert ; Roberts William Peyton ; Speer Drew Ve ; Van Putte Andrew W., Compositions and methods for selectively crosslinking films and improved film articles resulting therefrom.
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Meyer-Roscher Bernd,DEX ; Schrof Wolfgang,DEX ; Urban Dieter,DEX ; Geiss Paul Ludwig,DEX ; Brockmann Walter,DEX, Crosslinking of radiation-crosslinkable pressure-sensitive adhesive films.
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Shima Mutsuo (Tokorozawa JPX) Aoyama Kensuke (Hatoyama JPX) Naka Michiro (Koganei JPX), Decorative sheets and processes for producing decorative articles by using the same.
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Nishimura Hiroshi (Yokohama JPX) Monma Tetsuo (Yokohama JPX) Yoshida Minoru (Yokohama JPX) Kirimoto Kazunari (Chiba JPX) Hayamizu Yoshio (Goi JPX) Nagasawa Toshio (Kyoto JPX), Heat shrinkable covers.
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Changani Pushpkumar D. (Swindon GB2) Peacock Donald G. (Kempsford GB2) Roberts David (Swindon GB2), Heat shrinkable wraparound closures.
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Tsurutani Iwao (Ichihara JPX) Kataoka Hideto (Ichihara JPX) Taoka Shinichi (Ichihara JPX), Heat-shrinkable cover sheet.
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Kupczyk Andreas (Hagen DEX) Heinze Volker (Hagen DEX), Heat-shrinkable envelope having low-tearing susceptibility.
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Robinson Joseph-Gordon (Cheltenham GB3), Heat-shrinkable repair cover for pressurized cables.
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Steven L. Krebs ; Dirk L. Pletcher ; Ray Gsell ; Dale F. Swarts ; Gregory S. Meadows ; Gregory K. Taylor, Method for crosslinking UHMWPE in an orthopaedic implant.
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Sato Shigehiro (Osaka JPX) Shimizu Tokihiko (Nara JPX), Method for making a relief pattern of a cured resin on a transparent colored layer.
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Kohama Katsumi (Saitama JPX) Tanaka Hiromi (Tokyo JPX) Yugami Ryoichi (Saitama JPX) Abe Tomohisa (Saitama JPX) Atobe Daisuke (Osaka JPX) Takizawa Hidemitsu (Osaka JPX) Ueda Kenichi (Osaka JPX) Inagak, Method for molding fiber-reinforced resin.
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Ohlinger, Rainer; Schafer, Burkhard; Buhring, Jurgen, Method for preparation of a polyolefin foil and its utilization.
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Medwed Emmerich (Wolfertschwenden DEX), Method for producing containers from thermoplastic sheet material.
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Jarvis Harold F. (Moffat CA), Method of fabricating crosslinked thermoplastics articles.
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Vogt, G?nter; Ohlinger, Rainer, Method of producing a molded part that is deep drawn from a thermoplastic foil.
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Tomiyama Takeshi (Hiratsuka JPX) Eda Takeshi (Hiratsuka JPX) Hashimoto Sadaaki (Hiratsuka JPX) Tomiya Junitiro (Hiratsuka JPX), Method of protecting coating film.
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Bobeth Wolfgang (Dresden DDX) Heger Adolf (Dresden DDX) Pssler Helmar (Dresden DDX), Method of treating high-polymer materials.
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Itaba Yasushi (Kawasaki JPX) Yoshifuji Yutaka (Tokyo JPX), Polyethylene label and method of preparation thereof.
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Wang, Aiguo; Essner, Aaron Paul; Zarnowski, Alfred J., Process for preparing selectively cross-linked polyethylene orthopedic devices.
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Saitoh Keichiro (Iruma JPX) Itaba Yasushi (Higashi-Kurume JPX) Izawa Minoru (Iruma JPX) Yoshino Tadao (Minami-Saitama JPX), Process for producing a crosslinked and oriented polyethylene film.
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Scholz Hans-Gnter (Grosssachsen DEX) Graab Gerhard (Mannheim DEX), Process for producing a deep-drawn article from a partially-crystalline polymeric material.
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Schmidle Claude J. (Trenton NJ) Varadhachary Seevaram N. (Newtown PA), Resinous polymer sheet material having surface decorative effects of contrasting gloss and method of making the same.
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Marx Karl-Heinz (Garbsen DEX) Voigt Hermann-Uwe (Stadthagen DEX) Patzke Frank (Barsinghausen DEX), Ribbon of a cross-linked plastic which is capable of shrinking upon the action of heat.
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Simm Manfred (Troisdorf DEX) Spiess Karl-Heinz (Much DEX) Weiss Richard (Troisdorf DEX), Shaped article of a synthetic resin and/or natural rubber and process for the production thereof.
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Hanschen Thomas P. (St. Paul MN) Krueger Dennis L. (Hudson WI) Karp Gregory P. (Brooklyn Park MN), Spatially modified elastic laminates.
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Fowler Stephen L. (Taylors SC), Uniformly irradiated polymer film.
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Stanek Mark J. (Sunnyvale CA), Wrap around heat shrinkable article.
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