Patents by Inventor Gerhard Wieners
Gerhard Wieners has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7799436Abstract: The invention relates to a multilayered biaxially oriented polyolefin film in the form of a release film in a laminate which is coated on an outer surface thereof with a cold seal adhesive. The release film comprises a base layer and at least one outer layer. At least one layer of the release film contains wax having an average molecular weight Mn of 200-3000. The invention also relates to a method for producing the film and the use thereof.Type: GrantFiled: April 5, 2001Date of Patent: September 21, 2010Assignee: Trespaphan GmbHInventors: Gerhard Wieners, Susanne Holzer, Jürgen Schischko
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Publication number: 20090011183Abstract: The invention relates to a multi-layered biaxially oriented polypropylene film consisting of a base layer, a covering layer (I) which is applied to a first side of the film and contains at least between 80 and 100 wt. % of a propylene-ethylene copolymer, and another layer (II) which is applied to the opposing second side and contains between 40 and 100 wt. % of a propylene-ethylene copolymer. The propylene-ethylene copolymer of the two layers contains a maximum of 2.5 wt. % of ethylene and has a melting point between 145 and 160° C. The curl of the film can be controlled very well.Type: ApplicationFiled: April 13, 2005Publication date: January 8, 2009Applicant: Treofan Germany GmbH & Co. KGInventors: Karl-Heinz Kochem, Mathias Roth, Wilfrid Tews, Gerhard Wieners
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Patent number: 7144542Abstract: The invention relates to the use of a biaxially oriented polyolefin film as a label film. The inventive film consists of a base layer and at least one cover layer. Said cover layer contains as the main component a copolymer or terpolymer consisting of one alkene and unsaturated carboxylic acids or the esters thereof and low amounts of an additive. The cover layer is characterized by excellent and divers adhesion to various polymer materials from which containers are formed. It is no longer necessary to apply adhesives, primers, coatings etc. in a separate step after production of the film.Type: GrantFiled: December 5, 2001Date of Patent: December 5, 2006Assignee: Trespaphan GmbHInventors: Susanne Holzer, Gerhard Wieners, Albert Lauer
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Patent number: 7052774Abstract: The invention relates to a biaxially oriented polypropylene multilayer film, which comprises at least one base layer (B), an intermediate layer (I) and a top layer (I), and which contains anti-fog additives. The anti-fog additive is only added to the intermediate layer (I) in a quantity ranging from 0.5 to 8 wt. % with regard to the weight of the intermediate layer, and the film contains a maximum of 0.5 to <1 wt. % of anti-fog additives with regard to the total weight of the film. The film is suited for packaging moist goods.Type: GrantFiled: March 13, 2002Date of Patent: May 30, 2006Assignee: Trespaphan GmbHInventors: Susanne Holzer, Gerhard Wieners
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Patent number: 7011882Abstract: The invention relates to a multi-layered biaxially orientated polyolefin film comprising a base layer and at least one protective coating. Said protective coating contains, as the main component, one copolymer or terpolymer I, which seals against PVDC and acrylate lacquers and coatings and consists of an olefin and unsaturated carboxylate acids or the esters thereof, and small quantities of wax. The film is provided on one side with a PVDC or acrylate coating so that it can be used as roll-wrap packaging.Type: GrantFiled: September 11, 2001Date of Patent: March 14, 2006Assignee: Trespaphan GmbHInventors: Susanne Holzer, Gerhard Wieners, Wilfried Tews
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Patent number: 6844079Abstract: A multilayer biaxially oriented, polyolefin film consisting of a base layer, at least one first intermediate layer and a first cover layer that is applied to said intermediate layer. The first intermediate layer is made of a terpolymer consisting of three different monomers (a), (b) and (c): whereby (a) is an olefin, (b) is an unsaturated carboxylic acid or esters thereof, and (c) is an unsaturated carboxylic acid or carboxylic acid ester, which is different from (b), or is a carboxylic acid anhydride. In addition, the first cover layer contains a copolymer, and a top layer comprising a copolymer of an olefin, and an unsaturated carboxylic acid or esters thereof, and the first cover layer additionally contains an additive.Type: GrantFiled: May 31, 2002Date of Patent: January 18, 2005Assignee: Trespaphen GmbHInventors: Susanne Holzer, Gerhard Wieners
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Patent number: 6838042Abstract: The invention relate to the use of a multi-layer polypropylene film as an in-mold label used in a blow molding methods. According to the invention, the label film is laid inside the hollow mold of a blow molding machine, comprises an inner protective layer that faces the receptacle to be molded, and comprises an outer protective layer that is in contact with the hollow mold, whereby the inner protective layer has a roughness Rz of at least 3.5 ?m.Type: GrantFiled: October 9, 2000Date of Patent: January 4, 2005Assignee: Trespaphan GmbHInventors: Gerhard Wieners, Wilfrid Tews
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Publication number: 20040146730Abstract: The invention relates to a multilayer biaxially oriented polyolefin film consisting of a base layer, of at least one first intermediate layer and of a first cover layer that is applied to said intermediate layer. The first intermediate layer is made of a terpolymer consisting of three different monomers (a), (b) and (c), whereby (a) is an olefin. (b) is an unsaturated carboxylic acid or esters thereof, and (c) is an unsaturated carboxylic acid or carboxylic acid ester, which is different from (b), or is a carboxylic acid anhydride. In addition, the first cover layer contains a copolymer, which is comprised of an olefin and of an unsaturated carboxylic acid or esters thereof, and this first cover layer additionally contains an additive.Type: ApplicationFiled: November 25, 2003Publication date: July 29, 2004Inventors: Susanne Holzer, Gerhard Wieners
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Publication number: 20040110018Abstract: The invention relates to a biaxially oriented polypropylene multilayer film, which comprises at least one base layer (B), an intermediate layer (I) and a top layer (I), and which contains anti-fog additives. The anti-fog additive is only added to the intermediate layer (I) in a quantity ranging from 0.5 to 8 wt. % with regard to the weight of the intermediate layer, and the film contains a maximum of 0.5 to <1 wt. % of anti-fog additives with regard to the total weight of the film. The film is suited for packaging moist goods.Type: ApplicationFiled: September 16, 2003Publication date: June 10, 2004Inventors: Susanne Holzer, Gerhard Wieners
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Publication number: 20040033378Abstract: The invention relates to a multi-layered biaxially orientated polyolefin film comprising a base layer and at least one protective coating. Said protective coating contains, as the main component, one copolymer or terpolymer I, which seals against PVDC and acrylate lacquers and coatings and consists of an olefin and unsaturated carboxylate acids or the esters thereof, and small quantities of wax. The film is provided on one side with a PVDC or acrylate coating so that it can be used as roll-wrap packaging.Type: ApplicationFiled: March 13, 2003Publication date: February 19, 2004Inventors: Susanne Holzer, Gerhard Wieners, Wilfried Tews
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Publication number: 20040028932Abstract: The invention relates to the use of a biaxially oriented polyolefin film as a label film. The inventive film consists of a base layer and at least one cover layer. Said cover layer contains as the main component a copolymer or terpolymer consisting of one alkene and unsaturated carboxylic acids or the esters thereof and low amounts of an additive. The cover layer is characterized by excellent and divers adhesion to various polymer materials from which containers are formed. It is no longer necessary to apply adhesives, primers, coatings etc. in a separate step after production of the film.Type: ApplicationFiled: June 5, 2003Publication date: February 12, 2004Inventors: Susanne Holzer, Gerhard Wieners, Albert Lauer
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Publication number: 20030124344Abstract: The invention relates to a multilayered biaxially oriented polyolefin film in the form of a release film in a laminate which is coated on an outer surface thereof with a cold seal adhesive. The release film comprises a base layer and at least one outer layer. At least one layer of the release film contains wax having an average molecular weight Mn of 200-3000. The invention also relates to a method for producing the film and the use thereof.Type: ApplicationFiled: October 3, 2002Publication date: July 3, 2003Inventors: Gerhard Wieners, Susanne Holzer, Jurgen Schischko
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Patent number: 6548628Abstract: The present invention relates to single- or multilayer films and one or more layers comprising at least one polyolefin molding composition containing at least one polyolefin derived from at least one olefin having at least 2 carbon atoms, of the formula Ra—CH═CH—Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a straight-chain or branched C1-C15-alkyl radical, or Ra and Rb, together with the atoms connecting them, form a ring or ring system, and the polyolefin has been prepared by means of metallocene catalysts. The present invention furthermore relates to a process for the production of films and layers in which a polyolefin molding composition having a particle size of from 20 &mgr;m to 5000 &mgr;m is used or prepared. The shaped polyolefin molding composition is melt-mixed with at least one additive and shaped. The melt-mixed and shaped material is melted at a temperature of from 150° C. to 300° C.Type: GrantFiled: December 20, 1996Date of Patent: April 15, 2003Assignee: Basell Polyolefine GmbHInventors: Andreas Winter, Ernst Hofmann, Gerhard Wieners, Bernd Bachmann
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Publication number: 20020182428Abstract: The present invention relates to single- or multilayer films and one or more layers comprising at least one polyolefin molding composition containing at least one polyolefin derived from at least one olefin having at least 2 carbon atoms, of the formula Ra—CH═CH—Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a straight-chain or branched C1-C15-alkyl radical, or Ra and Rb, together with the atoms connecting them, form a ring or ring system, and the polyolefin has been prepared by means of metallocene catalysts. The present invention furthermore relates to a process for the production of films and layers in which a polyolefin molding composition having a particle size of from 20 &mgr;m to 5000 &mgr;m is used or prepared. The shaped polyolefin molding composition is melt-mixed with at least one additive and shaped. The melt-mixed and shaped material is melted at a temperature of from 150° C. to 300° C.Type: ApplicationFiled: December 20, 1996Publication date: December 5, 2002Inventors: ANDREAS WINTER, ERNST HOFMANN, GERHARD WIENERS, BERND BACHMANN
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Patent number: 5319131Abstract: Esters of .alpha.-fluoroacrylic acid are accessible by hydrolysis of an .alpha.-hydroxymethyl-.alpha.-fluoromalonic acid ester, decarboxylation and dehydration of the hydrolysis product and subsequent esterification of the resulting .alpha.-fluoroacrylic acid with an alcohol. The esters are polymerizable and are suitable for use as a starting material for preparing fluoropolymers which in turn are usable as materials for manufacturing transparent articles. The polymers are high-molecular and non-crystalline and have softening temperatures of above 100.degree. C.Type: GrantFiled: February 22, 1993Date of Patent: June 7, 1994Assignee: Hoechst AktiengesellschaftInventors: Rudolf Heumuller, Gunter Siegemund, Werner Groh, Gerhard Wieners, Peter Herbrechtsmeier
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Patent number: 5301254Abstract: A transparent thermoplastic molding compound consisting of 40 to 90% by weight of units derived from tetrafluoroethylene, and 60 to 10% by weight of units derived from compounds of formula I or II:CF.sub.2 .dbd.CF--O--(CF.sub.2 --CF(CF.sub.3)--O).sub.m --(CF.sub.2).sub.n --CF.sub.3 (I)CF.sub.2 .dbd.CF--O--(CF.sub.2 --CF(CF.sub.3)--O).sub.p --(CF.sub.2).sub.q --COO--R (II)is particularly suitable for manufacturing the sheath of beam waveguides whose core has a higher transparency than polymethyl methacrylate.Type: GrantFiled: November 7, 1991Date of Patent: April 5, 1994Assignee: Hoechst AktiengesellschaftInventors: Peter Blickle, Jochen Coutandin, Peter Herbrechtsmeier, Klaus Hintzer, Gerhard Wieners
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Patent number: 5283303Abstract: A thermoplastic molding compound consisting of units of 2,3-difluoroacrylic acid esters or their deuterated derivatives, or containing units of these esters, is distinguished by a high glass transition temperature and a high transparency. It is therefore suitable for the manufacture of beam waveguides for long transmission distances and high continuous use temperatures.Type: GrantFiled: November 3, 1992Date of Patent: February 1, 1994Assignee: Hoechst AktiengesellschaftInventors: Werner Groh, Peter Herbrechtsmeier, Rudolf Heumuller, Jurgen Theis, Gerhard Wieners
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Patent number: 5239027Abstract: Transparent thermoplastic molding composition of a polymer containinga) 10 to 95% by weight of units which are derived from a compound of the formula (I)R.sup.1.sub.2 C.dbd.CF--COO--C(CF.sub.3).sub.2 R.sup.2 (I)b) 90 to 5% by weight of units which are derived from one or more compounds of the formula (II) ##STR1## and c) 0 to 85% by weight of units which are derived from a compound of the formula (III)R.sup.7.sub.2 C.dbd.CF--COO--CR.sup.8.sub.3 (III)The molding composition is used for the production of optical objects, in particular for the production of optical fibers.Type: GrantFiled: December 17, 1992Date of Patent: August 24, 1993Assignee: Hoechst AktiengesellschaftInventors: Werner Groh, Rudolf Heumuller, Gerald Schutze, Roland Stern, Gerhard Wieners
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Patent number: 5198925Abstract: Esters of .alpha.-fluoroacrylic acid are accessible by hydrolysis of an .alpha.-hydroxymethyl-.alpha.-fluoromalonic acid ester, decarboxylation and dehydration of the hydrolysis product and subsequent esterification of the resulting .alpha.-fluoroacrylic acid with an alcohol. The esters are polymerizable and are suitable for use as a starting material for preparing fluoropolymers which in turn are usable as materials for manufacturing transparent articles. The polymers are high-molecular and non-crystalline and have softening temperatures of above 100.degree. C.Type: GrantFiled: February 18, 1992Date of Patent: March 30, 1993Assignee: Hoechst AktiengesellschaftInventors: Rudolf Heumuller, Gunter Siegemund, Werner Groh, Gerhard Wieners, Peter Herbrechtsmeier
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Patent number: RE34901Abstract: An optical waveguide having a core/sheath structure whose sheath comprises a terpolymer based on vinylidene fluoride, tetrafluoroethylene and hexafluorpropylene, is suitable for transmission paths of ca. 10 to 100 m an can also be used at a temperature of above 100.degree. C. without significant reduction of the transmission path.Type: GrantFiled: December 24, 1992Date of Patent: April 11, 1995Assignee: Hoechst AktiengesellschaftInventors: Peter Herbrechtsmeier, Gerhard Wieners, Jurgen Kuhls, Manfred Tschacher, Herbert Fitz