Patents by Inventor Martti Vähälä
Martti Vähälä 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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Publication number: 20150213735Abstract: The invention relates to a multilayer facestock of a label, and to a label having a facestock, wherein the facestock is machine direction oriented and comprises a core layer, a first skin layer and a second skin layer, and wherein the thickness of the first skin layer is 10 to 90% of the thickness of the second skin layer. The invention further relates to a use of a facestock for self-adhesive labels, and to a method for providing a facestock.Type: ApplicationFiled: July 12, 2013Publication date: July 30, 2015Inventors: Tom Saxberg, Noel Mitchell, Matti Manner, Martti Vähälä
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Publication number: 20150194078Abstract: The invention relates to a multilayer facestock of a label, and to a label having a multilayer facestock, wherein the facestock is machine direction oriented and comprises a core layer, a first skin layer and a second skin layer. The second skin layer comprises propylene homopolymer, hydrocarbon resin, styrene block copolymer, and low density polyethylene. The invention also relates to a method for manufacturing such facestocks. The invention further relates to a use of the facestock for self-adhesive labels.Type: ApplicationFiled: July 12, 2013Publication date: July 9, 2015Inventors: Tom Saxberg, Noel Mitchell, Matti Manner, Martti Vähälä
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Publication number: 20150190988Abstract: The invention relates to a facestock of a label and a label, wherein the facestock is a machine direction oriented and comprises at least a core layer, a first surface layer and a second surface layer. The facestock has a tensile modulus ratio in the machine direction to the transversal direction between 2.0 and 3.8. The invention also relates to a method for manufacturing a facestock and a use of the facestock for self-adhesive labels.Type: ApplicationFiled: July 12, 2013Publication date: July 9, 2015Applicant: UPM Raflatac OyInventors: Tom Saxberg, Noel Mitchell, Matti Manner, Martti Vähälä
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Publication number: 20150166846Abstract: The invention relates to a machine direction oriented multilayer facestock of a label and a label, wherein the facestock comprises a core layer and a first skin layer. The core layer comprises propylene homopolymer, low density polyethylene, hydrocarbon resin and styrene block copolymer. The invention also relates to use of the facestock for self-adhesive labels. The invention further relates to a method for manufacturing the facestock.Type: ApplicationFiled: July 12, 2013Publication date: June 18, 2015Applicant: UPM Raflatac OyInventors: Tom Saxberg, Noel Mitchell, Matti Manner, Martti Vähälä
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Patent number: 8628848Abstract: A filmic label including a face material having a front side, a reverse side and an adhesive layer including pressure sensitive adhesive on the reverse side of the face material. The face material includes at least one surface layer on at least one side of at least one central layer. The at least one central layer includes cavities that have been initiated at initiation sites by stretching the face material in a longitudinal direction and in a cross direction. The cavities have been expanded in a thickness direction of the face material by allowing a gaseous substance to have an effect on the at least one central layer. Also a method for forming a plastic film for a filmic label.Type: GrantFiled: June 2, 2008Date of Patent: January 14, 2014Assignee: UPM Raflatac OyInventors: Håkan Saxen, Martti Vähälä, Tom Saxberg
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Publication number: 20100242326Abstract: A filmic label including a face material having a front side, a reverse side and an adhesive layer including pressure sensitive adhesive on the reverse side of the face material. The face material includes at least one surface layer on at least one side of at least one central layer. The at least one central layer includes cavities that have been initiated at initiation sites by stretching the face material in a longitudinal direction and in a cross direction. The cavities have been expanded in a thickness direction of the face material by allowing a gaseous substance to have an effect on the at least one central layer. Also a method for forming a plastic film for a filmic label.Type: ApplicationFiled: June 2, 2008Publication date: September 30, 2010Applicant: UPM RAFLATAC OYInventors: Håkan Saxen, Martti Vähälä, Tom Saxberg
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Publication number: 20080261064Abstract: A polymer composition for extrusion coating with good process properties comprising a multimodal high density polyethylene (A) and a low density polyethylene.Type: ApplicationFiled: July 1, 2005Publication date: October 23, 2008Applicant: Borealis Technology OYInventors: Erkki Laiho, Martti Vaehaelae, Markku Sainio
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Patent number: 7329460Abstract: The invention relates to a multi-layer heat-sealable packaging material especially for food packages. In addition, objects of the invention are a food package formed of the said packaging material, a method of packaging, and the use of the material for packages. The packaging material (1) comprises a middle layer (3) of fibre material, such as cardboard; at least one polymeric protective layer (4, 5) protecting the product from going bad; and polymeric heat sealing layers (2, 7) preferably on both sides of the packaging material. According to the invention, the heat sealing layer (7) forming the inner surface of the closed package, is blended with light-absorbing pigment, such as carbon black, for protecting the product from visible light. By further blending white pigment, such as titanium dioxide, into the heat sealing layer (7), a grey tint resembling an aluminium foil has been achieved for the layer.Type: GrantFiled: April 9, 2001Date of Patent: February 12, 2008Assignee: Stora Enso OyjInventors: Tapani Penttinen, Jalliina Järvinen, Kimmo Nevalainen, Erkki Laiho, Markku Sainio, Martti Vähälä
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Patent number: 7048882Abstract: This invention concerns a process for coating a substrate, and an extrusion coating structure. According to the present process, the coating is provided by producing a bimodal polyethylene composition by subjecting ethylene, optionally with hydrogen and/or comonomers to polymerization or copolymerization reactions in a multistage polymerization sequence of successive polymerization stages. The polymerization reactions are carried out in the presence of a single site catalyst capable of forming a composition which comprises a low molecular weight component with an MFR2 of 20 g/10 min or more and a density higher than the density of the composition, and a high molecular weight component, said composition having a melt flow rate MFR2 of 5 g/10 min or more and a density of 915–960 kg/m3. The composition is extruded on the substrate as such or by adding 10 wt-% or less, calculated from the total weight of the coating, of high pressure PE-LD by blending into the extrusion composition or by coextrusion.Type: GrantFiled: February 19, 2001Date of Patent: May 23, 2006Assignee: Borealis Technology OyInventors: Martti Vähälä, Hannu Salminen, Arja Lehtinen
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Patent number: 6291590Abstract: Extrusion coating structure in which at least one layer is made of a polymer composition comprising a multimodal ethylene polymer, which contains from 80 to 100% by weight of ethylene repeating u nits and from 0 to 20% by weight of C3-C10 alpha-olefin repeating units, has a density of between 0.920 and 0.960 kg/m3, and which is a blend of at least two different ethylene polymers.Type: GrantFiled: September 7, 1999Date of Patent: September 18, 2001Assignee: Borealis Technology OyInventors: Markku Sainio, Erkki Laiho, Martti Vähälä, Hannu Salminen