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公开(公告)号:JPS6377741A
公开(公告)日:1988-04-07
申请号:JP22869987
申请日:1987-09-14
Applicant: HOECHST AG
Inventor: CRASS GUENTHER , JANOCHA SIEGFRIED , BOTHE LOTHAR
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公开(公告)号:JPS62113548A
公开(公告)日:1987-05-25
申请号:JP26680686
申请日:1986-11-11
Applicant: HOECHST AG
Inventor: CRASS GUENTHER , BOTHE LOTHAR , SCHLOEGL GUNTER
Abstract: The multi-layer film comprises a propylene polymer base layer having a stabilizer content of up to 0.2% by weight and outer layers, also composed of propylene polymer, having a stabilizer content of at least 0.3% by weight. The outer layers contain 3 to 10 times the amount of stabilizer present in the base layer, as a result of which the initial value of the dielectric loss factor tan of the multi-layer film is kept low, and the loss factor exhibits only a slight increase with time.
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公开(公告)号:NL194634B
公开(公告)日:2002-06-03
申请号:NL9100083
申请日:1991-01-17
Applicant: HOECHST AG
Inventor: STENGER KARL , CRASS GUENTHER , BEISSEL DIETER
Abstract: A multi-layered tubular synthetic sausage casing which includes an outer polyamide layer, an inner polyolefin layer and an intermediate layer for mutually bonding the inner and outer layers. The inner polyolefin layer includes a copolymer comprised of units of ethylene, propylene or straight-chain alpha-olefins having 4 to 8 carbon atoms, or of a mixture of these copolymers. In a preferred embodiment, the polyolefin layer is comprised of an ethylene/propylene/butylene terpolymer and/or of a propylene/butylene copolymer.
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公开(公告)号:DE58909518D1
公开(公告)日:1996-01-18
申请号:DE58909518
申请日:1989-02-09
Applicant: HOECHST AG
Inventor: SCHLOEGL GUNTER DR , BOTHE LOTHAR DR , CRASS GUENTHER , WILHELM THOMAS DR , HELF KARL-EDUARD
IPC: B29C55/12 , B29K23/00 , B29L7/00 , C08J5/18 , C08K3/26 , C08K7/00 , C08K7/18 , C08L23/02 , C08L23/10 , H01B3/44 , H01G4/18
Abstract: The biaxially oriented film, which is made from high-purity polyolefin-based raw material for films for use in the electrical sector, in particular propylene polymers, and is suitable for use as an electroinsulation film, contains carbonate particles as neutralisers. These preferably have an absolute particle size of less than 10 microns, a mean particle diameter of less than 0.1 micron, a specific surface area of greater than 30 m /g and a whiteness of greater than 90%. The film is used as a dielectric in capacitors and has improved electrical properties.
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公开(公告)号:DE59009609D1
公开(公告)日:1995-10-12
申请号:DE59009609
申请日:1990-06-22
Applicant: HOECHST AG
Inventor: WILHELM THOMAS DR , BOTHE LOTHAR DR , CRASS GUENTHER , SCHLOEGL GUNTER DR , MUSKALLA WINFRIED
Abstract: A biaxially-oriented film with high mechanical strength, which includes 69 to 94.99% by weight of a polyolefin, 5 to 30% by weight of a natural or synthetic resin having a softening point in the range from 70 DEG to 170 DEG C., and 0.01 to 1% by weight of a nucleating agent, based on the total weight of the film. A method for producing this film includes biaxially drawing the film at temperatures below the melting point of the polyolefin.
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公开(公告)号:DE3851042D1
公开(公告)日:1994-09-15
申请号:DE3851042
申请日:1988-12-14
Applicant: HOECHST AG
Inventor: JANOCHA SIEGFRIED DR , SCHLOEGL GUNTER DR , CRASS GUENTHER , BOTHE LOTHAR DR
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公开(公告)号:DE58903623D1
公开(公告)日:1993-04-08
申请号:DE58903623
申请日:1989-01-11
Applicant: HOECHST AG
Inventor: STENGER KARL , STRUTZEL HANS , CRASS GUENTHER
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公开(公告)号:DE3875266D1
公开(公告)日:1992-11-19
申请号:DE3875266
申请日:1988-03-05
Applicant: HOECHST AG
Inventor: BOTHE LOTHAR DR , SCHLOEGL GUNTER DR , CRASS GUENTHER
Abstract: Flat sleeve of thermoplastic plastics (I), for packing magnetic data discs, has an opening along the whole of one side between the front and back of the sleeve. The front is folded over the back along this side, whilst the side edges are folded over and welded firmly together. (I) consists of a biaxially oriented, opaque, laminated film, which has a polypropylene base layer contg. 5-30 (wt.)% filler and coatings on both sides.
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公开(公告)号:DE3681686D1
公开(公告)日:1991-10-31
申请号:DE3681686
申请日:1986-10-17
Applicant: HOECHST AG
Inventor: BOTHE LOTHAR , CRASS GUENTHER , DALLMANN HERMANN
IPC: B32B27/32
Abstract: Biaxially drawn, co-extruded, opaque film laminate comprises a polypropylene base film, coated on both sides and printable on at least one side without pretreatment by corona discharge and with an overall density of the coated film of less than or equal to 0.75 g/cc. Pref. the printable coating is a copolyester of terephthalic acid, isophthalic acid, ethylene glycol or butane diol. One side of the base film may be coated with the copolyester and the other with a heat-sealable -C2-, -C2-C3-, -C2-C4-, -C3-C4-, -C2-C3-C4- polyolefine or mixts. of these. The copolyester may be wetted with a cold sealable coat. The base film may contain 5-30, esp. 10-25 wt.% of an incompatible, (in)organic filler, specifically Ca carbonate with an ave. particle size of 0.2-8, esp. 1-5 microns. The coated films have a total thickness of 15-100, esp. 20-80 microns, a coating thickness of 0.2-3, esp. 0.5-1.5 microns and the base film density is 0.50-0.06 g/cc.
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公开(公告)号:DE3681535D1
公开(公告)日:1991-10-24
申请号:DE3681535
申请日:1986-09-22
Applicant: HOECHST AG
Inventor: JANOCHA SIEGFRIED , SCHLOEGL GUNTER , CRASS GUENTHER , BOTHE LOTHAR
Abstract: Sheet (I) comprises A) such a polypropylene film, with density max. 0.60 g/cub. cm B) a metal film. Pref. (I) is 20-100, partic. 40-80, microns thick, B) is 5-50, partic. 8-25, microns thick. Density of A) is 0.40-0.60 g/cub. cm. A) and B) are bonded together by adhesive or by stamping.
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