Patents by Inventor Niclas Norrby
Niclas Norrby 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: 10561538Abstract: A method for production of disposable hygienic absorbent articles, the method comprising advancing in a first direction a continuous length of a substantially homogeneous elastic laminate web having a maximum elastic extensibility in the first direction of at least 40% under a peak load Fp; maintaining said substantially homogeneous elastic laminate web under a tensioning load Ft in the first direction during the advancing, the tensioning load Ft satisfying the condition: 0.03 Fp?Ft?0.25 Fp; attaching individual absorbent cores to the substantially homogeneous elastic laminate web while maintaining said substantially homogeneous elastic laminate web under the tensioning load Ft; and severing the substantially homogenous elastic laminate web into individual disposable hygienic absorbent articles.Type: GrantFiled: February 19, 2018Date of Patent: February 18, 2020Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Kent Hermansson, Jan Wästlund-Karlsson, Margareta Wennerbäck, Carina Hedlund, Niclas Norrby
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Publication number: 20180168883Abstract: A method for production of disposable hygienic absorbent articles, the method comprising advancing in a first direction a continuous length of a substantially homogeneous elastic laminate web having a maximum elastic extensibility in the first direction of at least 40% under a peak load Fp; maintaining said substantially homogeneous elastic laminate web under a tensioning load Ft in the first direction during the advancing, the tensioning load Ft satisfying the condition: 0.03 Fp?Ft?0.25 Fp; attaching individual absorbent cores to the substantially homogeneous elastic laminate web while maintaining said substantially homogeneous elastic laminate web under the tensioning load Ft; and severing the substantially homogenous elastic laminate web into individual disposable hygienic absorbent articles.Type: ApplicationFiled: February 19, 2018Publication date: June 21, 2018Applicant: SCA Hygiene Products ABInventors: Kent HERMANSSON, Jan WÄSTLUND-KARLSSON, Margareta WENNERBÄCK, Carina HEDLUND, Niclas NORRBY
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Publication number: 20150313765Abstract: A method for production of disposable pant diapers, the method including providing a length of a substantially homogeneous elastic laminate web having a maximum elastic extensibility in a first direction of at least 40% under a peak load Fp; advancing the length of the substantially homogeneous elastic laminate web in the first direction; attaching individual absorbent cores to the length of the elastic laminate web during the advancing to create a strip, while maintaining the length of the substantially homogeneous elastic laminate web under a tensioning load Ft in the first direction; folding the strip onto itself; maintaining the length of the substantially homogeneous elastic laminate web under the tensioning load Ft in the first direction during the folding; the tensioning load Ft satisfying the condition: 0.03 Fp?Ft?0.25 Fp; and welding the substantially homogeneous elastic laminate web and severing the individual pant diapers along the weld lines.Type: ApplicationFiled: July 16, 2015Publication date: November 5, 2015Applicant: SCA Hygiene Products ABInventors: Kent HERMANSSON, Jan WASTLUND-KARLSSON, Margareta WENNERBACK, Carina HEDLUND, Niclas NORRBY
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Patent number: 9114041Abstract: A method for production of disposable hygienic absorbent articles (12) in which each article has a substantially homogenous elastic laminate web (14) having a maximum elastic extensibility in a first direction of at least 40%, preferably at least 60%, and most preferably at least 80%, under a peak load Fp, and an absorbent core (16) attached to the elastic laminate web. The method including the steps of providing a continuous length of the elastic laminate web (14); advancing the continuous length of the elastic laminate web in a direction of travel (A) corresponding to the first direction; attaching individual absorbent cores (16) to the continuous length of the elastic laminate web at spaced intervals, and forming individual articles (12) from the thus assembled individual absorbent cores and the continuous length of said elastic laminate web.Type: GrantFiled: September 29, 2004Date of Patent: August 25, 2015Assignee: SCA HYGIENE PRODUCTS ABInventors: Kent Hermansson, Jan Wästlund-Karlsson, Margareta Wennerbäck, Carina Hedlund, Niclas Norrby
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Patent number: 8298205Abstract: An elastically stretchable laminate (1) includes a first non-elastic nonwoven web (2), a second non-elastic nonwoven web (4) and an elastic film (6) between the first and the second nonwoven webs (2,4). The laminate (1) has been rendered elastic in a first direction (MD) by incremental stretching and partial tearing of the first and second nonwoven webs (2,4). The laminate (1) includes a reinforcement layer (8) arranged between the first and second non-elastic nonwoven webs (2,4) and comprising unbroken reinforcement fibers or filaments (9) extending in a second direction (CD), generally perpendicular to the first direction (MD). Also described is a pant-type article including the elastically stretchable laminate.Type: GrantFiled: November 13, 2006Date of Patent: October 30, 2012Assignee: SCA Hygiene Products ABInventors: Niclas Norrby, Jan Wästlund-Karlsson
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Patent number: 8206365Abstract: A pant-type absorbent article, at least one of the front and back panels having an elastic web material constituting the sole component of at least part of the front and/or back panels, the elastic waistband being joined to the waist edge of at least one of the front and back panels, wherein the elastic waistband having a first and a second ply of substantially non-elastic web material enclosing between them at least one elongate elastic member, the first ply of substantially non-elastic web material being secured to one side of the elastic web material at the waist edge of at least one of the front and back panels and that the second ply of substantially non-elastic web material is secured to the opposite side of the elastic web material just opposite said first ply.Type: GrantFiled: August 31, 2007Date of Patent: June 26, 2012Assignee: SCA Hygiene Products ABInventor: Niclas Norrby
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Patent number: 8092440Abstract: An absorbent article of the kind which is worn as a pair of absorbent pants with a waist opening defined by a rear waist edge and a front waist edge, and two leg openings. The absorbent article preferably includes an absorbent body attached to a covering. The covering preferably includes an elastic material arranged within an area which extends at least from the front waist edge to the leg openings. The elastic material is preferably treated. The treated elastic material preferably has no or reduced elasticity within a portion of the covering overlapping the absorbent core.Type: GrantFiled: June 28, 2004Date of Patent: January 10, 2012Assignee: SCA Hygiene Products ABInventors: Kent Hermansson, Carina Hedlund, Niclas Norrby, Jan Wästlund-Karlsson, Margareta Wennerbäck
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Patent number: 7754040Abstract: A method for applying an elastic member on an elastic web of material includes providing an elastic web of material running in a travelling direction; applying adhesive in a predetermined adhesive pattern on the web of material; applying a continuous elastic member in an elastic pattern on the adhesive, wherein the elastic member is applied in a direction of extension which deviates from the travelling direction at least within portions of the elastic member; applying a non-elastic web of material over the elastic web of material, wherein the non-elastic web of material is brought to cover the adhesive pattern, whereby the elastic member is locked between the elastic web of material and the non-elastic web of material in the applied position on the adhesive pattern. The non-elastic web of material is given a band shape with a first non-linear edge and a second non-linear edge, wherein the shape of the non-elastic web of material is brought to generally coincide with the shape of the adhesive pattern.Type: GrantFiled: December 18, 2006Date of Patent: July 13, 2010Assignee: SCA Hygiene Products ABInventor: Niclas Norrby
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Publication number: 20100076390Abstract: An elastically stretchable laminate (1) includes a first non-elastic nonwoven web (2), a second non-elastic nonwoven web (4) and an elastic film (6) between the first and the second nonwoven webs (2,4). The laminate (1) has been rendered elastic in a first direction (MD) by incremental stretching and partial tearing of the first and second nonwoven webs (2,4). The laminate (1) includes a reinforcement layer (8) arranged between the first and second non-elastic nonwoven webs (2,4) and comprising unbroken reinforcement fibres or filaments (9) extending in a second direction (CD), generally perpendicular to the first direction (MD). Also described is a pant-type article including the elastically stretchable laminate.Type: ApplicationFiled: November 13, 2006Publication date: March 25, 2010Applicant: SCA Hygiene Products ABInventors: Niclas Norrby, Jan Wästlund-Karlsson
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Publication number: 20090088713Abstract: A method of bonding a first and a second web material (2, 3) to each other, wherein the two web materials are brought together in the area to be bonded and thermal energy or ultrasonic energy is applied to at least one of the web materials in the area to be bonded. In order to improve the bonding strength an additional material (28) that is non-tacky at a temperature of 20° C. is applied to at least one of the web materials in at least a part of the area to be bonded prior to bringing the two web material (2, 3) together. In one aspect the web materials are components of a personal care absorbent article.Type: ApplicationFiled: February 13, 2006Publication date: April 2, 2009Applicant: SCA Hygiene Products ABInventor: Niclas Norrby
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Publication number: 20090038751Abstract: A method for production of disposable hygienic absorbent articles (12) in which each article has a substantially homogenous elastic laminate web (14) having a maximum elastic extensibility in a first direction of at least 40%, preferably at least 60%, and most preferably at least 80%, under a peak load Fp, and an absorbent core (16) attached to the elastic laminate web. The method including the steps of providing a continuous length of the elastic laminate web (14); advancing the continuous length of the elastic laminate web in a direction of travel (A) corresponding to the first direction; attaching individual absorbent cores (16) to the continuous length of the elastic laminate web at spaced intervals, and forming individual articles (12) from the thus assembled individual absorbent cores and the continuous length of said elastic laminate web.Type: ApplicationFiled: September 29, 2004Publication date: February 12, 2009Applicant: SCA Hygiene Products ABInventors: Kent Hermansson, Jan Wastlund-Karlsson, Margareta Wennerback, Carina Hedlund, Niclas Norrby
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Patent number: 7347846Abstract: Absorbent pants with a longitudinal direction and a transverse direction at right angles to the longitudinal direction and having an absorption core arranged between a liquid-tight cover sheet and a liquid-permeable cover sheet. The diaper pants have a front portion, a rear portion and an intermediate crotch portion, and a front edge and a rear edge extending substantially in the transverse direction and forming a waist opening, two side edges extending substantially in the longitudinal direction and forming two leg openings. An elastic sheet material is arranged at least along the waist opening of the diaper pants and extends at least from the waist opening to the leg openings, the elastic sheet material being secured to the absorption core in a substantially unstretched state.Type: GrantFiled: February 19, 2003Date of Patent: March 25, 2008Assignee: SCA Hygiene Products ABInventors: Kent Hermansson, Niclas Norrby, Catarina Linnér
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Publication number: 20080009817Abstract: A pant-type absorbent article, at least one of the front and back panels having an elastic web material constituting the sole component of at least part of the front and/or back panels, the elastic waistband being joined to the waist edge of at least one of the front and back panels, wherein the elastic waistband having a first and a second ply of substantially non-elastic web material enclosing between them at least one elongate elastic member, the first ply of substantially non-elastic web material being secured to one side of the elastic web material at the waist edge of at least one of the front and back panels and that the second ply of substantially non-elastic web material is secured to the opposite side of the elastic web material just opposite said first ply.Type: ApplicationFiled: August 31, 2007Publication date: January 10, 2008Applicant: SCA HYGIENE PRODUCTS ABInventor: Niclas NORRBY
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Publication number: 20070239131Abstract: An absorbent article of the kind which is worn as a pair of absorbent pants with a waist opening defined by a rear waist edge and a front waist edge, and two leg openings. The absorbent article preferably includes an absorbent body attached to a covering. The covering preferably includes an elastic material arranged within an area which extends at least from the front waist edge to the leg openings. The elastic material is preferably treated. The treated elastic material preferably has no or reduced elasticity within a portion of the covering overlapping the absorbent core.Type: ApplicationFiled: June 28, 2004Publication date: October 11, 2007Applicant: SCA Hygiene Products ABInventors: Kent Hermansson, Carina Hedlund, Niclas Norrby, Jan Wastlund-Karlsson, Margareta Wennerback
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Publication number: 20070095460Abstract: A method for applying an elastic member on an elastic web of material includes providing an elastic web of material running in a travelling direction; applying adhesive in a predetermined adhesive pattern on the web of material; applying a continuous elastic member in an elastic pattern on the adhesive, wherein the elastic member is applied in a direction of extension which deviates from the travelling direction at least within portions of the elastic member; applying a non-elastic web of material over the elastic web of material, wherein the non-elastic web of material is brought to cover the adhesive pattern, whereby the elastic member is locked between the elastic web of material and the non-elastic web of material in the applied position on the adhesive pattern. The non-elastic web of material is given a band shape with a first non-linear edge and a second non-linear edge, wherein the shape of the non-elastic web of material is brought to generally coincide with the shape of the adhesive pattern.Type: ApplicationFiled: December 18, 2006Publication date: May 3, 2007Applicant: SCA Hygiene Products ABInventor: Niclas Norrby
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Patent number: 7172669Abstract: A method for applying an elastic member on an elastic web of material includes providing an elastic web of material running in a traveling direction; applying adhesive in a predetermined adhesive pattern on the web of material; applying a continuous elastic member in an elastic pattern on the adhesive, wherein the elastic member is applied in a direction of extension which deviates from the traveling direction at least within portions of the elastic member; applying a non-elastic web of material over the elastic web of material, wherein the non-elastic web of material is brought to cover the adhesive pattern, whereby the elastic member is locked between the elastic web of material and the non-elastic web of material in the applied position on the adhesive pattern. The non-elastic web of material is given a band shape with a first non-linear edge and a second non-linear edge, wherein the shape of the non-elastic web of material is brought to generally coincide with the shape of the adhesive pattern.Type: GrantFiled: March 4, 2004Date of Patent: February 6, 2007Assignee: SCA Hygiene Products ABInventor: Niclas Norrby
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Publication number: 20050000628Abstract: A method for applying an elastic member on an elastic web of material includes providing an elastic web of material running in a travelling direction; applying adhesive in a predetermined adhesive pattern on the web of material; applying a continuous elastic member in an elastic pattern on the adhesive, wherein the elastic member is applied in a direction of extension which deviates from the travelling direction at least within portions of the elastic member; applying a non-elastic web of material over the elastic web of material, wherein the non-elastic web of material is brought to cover the adhesive pattern, whereby the elastic member is locked between the elastic web of material and the non-elastic web of material in the applied position on the adhesive pattern. The non-elastic web of material is given a band shape with a first non-linear edge and a second non-linear edge, wherein the shape of the non-elastic web of material is brought to generally coincide with the shape of the adhesive pattern.Type: ApplicationFiled: March 4, 2004Publication date: January 6, 2005Inventor: Niclas Norrby
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Publication number: 20030220622Abstract: Absorbent pants with a longitudinal direction and a transverse direction at right angles to the longitudinal direction and having an absorption core arranged between a liquid-tight cover sheet and a liquid-permeable cover sheet. The diaper pants have a front portion, a rear portion and an intermediate crotch portion, and a front edge and a rear edge extending substantially in the transverse direction and forming a waist opening, two side edges extending substantially in the longitudinal direction and forming two leg openings. An elastic sheet material is arranged at least along the waist opening of the diaper pants and extends at least from the waist opening to the leg openings, the elastic sheet material being secured to the absorption core in a substantially unstretched state.Type: ApplicationFiled: February 19, 2003Publication date: November 27, 2003Inventors: Kent Hermansson, Niclas Norrby, Catarina Linner
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Publication number: 20030217803Abstract: A method for production of absorbent articles having the shape of pants including providing individual absorption cores, securing the absorption cores to an elastic material web which is advanced continuously in a direction of travel, assembling the individual articles to form a pants shape, cutting out individual articles each comprising an absorption core and a piece of the elastic material web, the cutting-out stage and assembling stage giving each article two leg openings and a waist opening. The elastic material web has an elastic extensibility in the direction of travel of at least 80%, and preferably at least 100%, and the elastic material web during production is stretched a maximum of 5% in the direction of travel of the material web.Type: ApplicationFiled: February 19, 2003Publication date: November 27, 2003Inventors: Kent Hermansson, Niclas Norrby, Catarina Linner