Abstract: A breathable laminate has a liquid-resistant backing film layer having varied vapor permeability that includes breathable thinned localized regions and thicker non-breathable regions, wherein the film layer is co-extensively directly joined with a liquid- and vapor-permeable nonwoven fabric. The breathable laminate can have unidirectional air permeability. The present invention also relates to disposable apparel and absorbent products which incorporate the breathable laminate, and methods of making the breathable laminate.
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
Type:
Grant
Filed:
January 10, 2011
Date of Patent:
March 3, 2015
Assignees:
The General Hospital Corp., Cambridge Polymer Group, Inc.
Inventors:
Orhun K. Muratoglu, Stephen H. Spiegelberg
Abstract: Nonwoven web products containing sub-micron fibers, and more specifically nonwoven web products having sub-micron fibers formed by fibrillation of polymer films, and nonwoven materials and articles incorporating them, and methods of producing these products.
Type:
Grant
Filed:
March 7, 2011
Date of Patent:
February 24, 2015
Assignee:
Polymer Group, Inc.
Inventors:
Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
Type:
Grant
Filed:
April 23, 2012
Date of Patent:
November 18, 2014
Assignees:
The General Hospital Corporation, Cambridge Polymer Group, Inc.
Inventors:
Orhun K. Muratoglu, Stephen H. Spiegelberg
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion, post-doping annealing, and materials used therein.
Type:
Grant
Filed:
September 7, 2012
Date of Patent:
October 21, 2014
Assignees:
The General Hospital Corporation, Cambridge Polymer Group, Inc.
Inventors:
Orhun K. Muratoglu, Stephen H. Spiegelberg
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
Type:
Application
Filed:
May 27, 2014
Publication date:
September 18, 2014
Applicants:
The General Hospital Corporation, Cambridge Polymer Group, Inc.
Inventors:
Orhun K. MURATOGLU, Stephen H. Spiegelberg
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion, post-doping annealing, and materials used therein.
Type:
Application
Filed:
March 10, 2014
Publication date:
July 3, 2014
Applicants:
Cambridge Polymer Group, Inc., The General Hospital Corporation
Inventors:
Orhun K. MURATOGLU, Stephen H. Spiegelberg
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
Type:
Grant
Filed:
September 15, 2010
Date of Patent:
May 20, 2014
Assignees:
The General Hospital Corporation, Cambridge Polymer Group, Inc.
Inventors:
Orhun K. Muratoglu, Stephen H. Spiegelberg
Abstract: A spinneret, apparatus, and method are provided for making filaments for fibrous nonwoven fabrics with more uniform filament and fabric formation while minimizing filament breaks and hard spot defects in webs and fabrics made therefrom. The spinneret has a spinneret body that has an overall length to hydraulic diameter ratio and defines orifices that extend through the spinneret body, wherein the orifices comprise capillaries that open at a face of the spinneret body for polymer filament extrusion therefrom, wherein the capillaries are arranged in a plurality of different rows at the face of the spinneret body, and wherein the plurality of different rows are arranged into a plurality of different zones at the face of the spinneret body.
Type:
Application
Filed:
October 16, 2012
Publication date:
April 17, 2014
Applicant:
POLYMER GROUP, INC.
Inventors:
Sergio Rafael Diaz de Leon Izquierdo, Marcal Bargallo Alabart, John Arthur Street, John F. Steffen, Ralph A. Moody, III
Abstract: The present invention relates to methods for making cross-linked oxidation-resistant polymeric materials and preventing or minimizing in vivo elution of antioxidant from the antioxidant-containing polymeric materials. The invention also provides methods of doping polymeric materials with a spatial control of cross-linking and antioxidant distribution, for example, vitamin E (?-Tocopherol), and methods for extraction/elution of antioxidants, for example, vitamin E (?-tocopherol), from surface regions of antioxidant-containing polymeric materials, and materials used therewith also are provided.
Type:
Application
Filed:
September 25, 2013
Publication date:
April 10, 2014
Applicants:
Cambridge Polymer Group, Inc., The General Hospital Corporation
Inventors:
Orhun K. MURATOGLU, Edward T. Kopesky, Ebru Oral
Abstract: The invention provides methods of making hydrolyzed cross-linked polyvinyl alcohol (PVA) hydrogels by polymerizing vinyl acetate (VAc) monomers to polyvinyl acetate (PVAc) polymer network by chemical-crosslinking and hydrolysis. The invention also provides methods for including pendant chains in the hydrogel during the polymerization process. Materials produced and use of the cross-linked hydrolyzed PVA hydrogels also are disclosed herein.
Type:
Grant
Filed:
December 7, 2009
Date of Patent:
January 28, 2014
Assignee:
Cambridge Polymer Group, Inc.
Inventors:
Edward T. Kopesky, Jason Berlin, Martin F. Van Buren, Gavin J. C. Braithwaite
Abstract: The present invention relates to methods for making cross-linked oxidation-resistant polymeric materials and preventing or minimizing in vivo elution of antioxidant from the antioxidant-containing polymeric materials. The invention also provides methods of doping polymeric materials with a spatial control of cross-linking and antioxidant distribution, for example, vitamin E (?-Tocopherol), and methods for extraction/elution of antioxidants, for example, vitamin E (?-tocopherol), from surface regions of antioxidant-containing polymeric materials, and materials used therewith also are provided.
Type:
Grant
Filed:
July 31, 2012
Date of Patent:
October 29, 2013
Assignees:
The General Hospital Corporation, Cambridge Polymer Group, Inc.
Inventors:
Orhun K. Muratoglu, Edward T. Kopesky, Ebru Oral
Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
Type:
Grant
Filed:
May 12, 2009
Date of Patent:
September 10, 2013
Assignees:
The General Hospital Corporation, Cambridge Polymer Group, Inc.
Inventors:
Orhun K. Muratoglu, Stephen H. Spiegelberg
Abstract: Processes for producing nonwoven web products containing sub-micron fibers are provided, and more specifically processes for producing nonwoven web products having sub-micron fibers formed by fibrillation of polymer films are provided.
Type:
Grant
Filed:
July 2, 2012
Date of Patent:
August 20, 2013
Assignee:
Polymer Group, Inc.
Inventors:
Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu