Patents by Inventor Donald H. Lucast
Donald H. Lucast 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: 8202934Abstract: Packaged viscoelastic compositions comprising viscoelastic copolymers and a packaging material are disclosed. The viscoelastic copolymers are urea copolymers, which are the reaction product of polyisocyanates and polyamines. The packaged viscoelastic compositions are hot melt processable.Type: GrantFiled: July 31, 2007Date of Patent: June 19, 2012Assignee: 3M Innovative Properties CompanyInventors: Audrey A. Sherman, Craig E. Hamer, Donald H. Lucast, Thomas E. Augustine, Wendi J. Winkler
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Patent number: 7947366Abstract: An a dhesive tape comprising a hot-melt pressure sensitive adhesive layer that comprises a lattice pattern formed by at least two linear strips that intersect; wherein the lattice pattern forms a plurality of parallelogrammic openings, having a major diagonal line (A) and a minor diagonal line (B), wherein the ratio of the major diagonal line (A) of the opening to the minor diagonal line (B) thereof is from 15 to 1; the length of the major diagonal line (A) is from 0.5 mm to 10 mm; and the length of the minor diagonal line (B) is from 0.3 to 7 mm.Type: GrantFiled: March 19, 2007Date of Patent: May 24, 2011Assignee: 3M Innovative Properties CompanyInventors: Hironobu Ishiwatari, Donald H. Lucast, Koji Suzuki
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Patent number: 7858838Abstract: A wound dressing comprising a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: GrantFiled: August 10, 2006Date of Patent: December 28, 2010Assignee: 3M Innovative Properties CompanyInventors: David R. Holm, Richard L. Jacobson, Donald H. Lucast
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Publication number: 20090036598Abstract: Packaged viscoelastic compositions comprising viscoelastic copolymers and a packaging material are disclosed. The viscoelastic copolymers are urea copolymers, which are the reaction product of polyisocyanates and polyamines. The packaged viscoelastic compositions are hot melt processable.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Inventors: Audrey A. Sherman, Craig E. Hamer, Donald H. Lucast, Thomas E. Augustine, Wendi J. Winkler
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Publication number: 20080233348Abstract: An adhesive tape comprising a hot-melt pressure sensitive adhesive layer that comprises a lattice pattern formed by at least two linear strips that intersect; wherein the lattice pattern forms a plurality of parallelogrammic openings, having a major diagonal line (A) and a minor diagonal line (B), wherein the ratio of the major diagonal line (A) of the opening to the minor diagonal line (B) thereof is from 15 to 1; the length of the major diagonal line (A) is from 0.5 mm to 10 mm; and the length of the minor diagonal line (B) is from 0.3 to 7 mm.Type: ApplicationFiled: March 19, 2007Publication date: September 25, 2008Inventors: Hironobu Ishiwatari, Donald H. Lucast
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Publication number: 20080039759Abstract: A wound dressing comprising a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: ApplicationFiled: August 10, 2006Publication date: February 14, 2008Inventors: David R. Holm, Richard L Jacobson, Donald H. Lucast
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Patent number: 7005031Abstract: A pressure sensitive adhesive composition is provided that includes a pressure sensitive adhesive polymer. The polymer includes: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 25° C.; at least one copolymerized monoethylenically unsaturated reinforcing monomer, wherein the reinforcing monomer, when homopolymerized, has a Tg of at least about 25° C.; covalently bonded quarternary ammonium functionality; and, optionally, at least one copolymerized monoethylenically unsaturated poly(alkylene oxide) monomer. The composition optionally further includes at least one nonreactive poly(alkylene oxide) polymer and/or at least one antimicrobial agent.Type: GrantFiled: January 16, 2002Date of Patent: February 28, 2006Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Patent number: 6903151Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.Type: GrantFiled: February 6, 2003Date of Patent: June 7, 2005Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Publication number: 20040137047Abstract: An article that includes a substrate having a surface, at least a portion of which is provided with a pressure sensitive adhesive composition that includes a blend of discrete, crosslinked polymer microspheres and a polymer matrix. The composition has a substantially smooth, exposed surface available for adhesion.Type: ApplicationFiled: December 22, 2003Publication date: July 15, 2004Applicant: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Richard J. Goetz
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Patent number: 6680113Abstract: A highly moisture vapor transmissive adhesive composite is disclosed comprising at least three layers, a polymeric backing layer, a high moisture vapor transmission layer, and a skin contacting adhesive layer. The high moisture vapor transmission layer may be made from a polymeric backing material, an adhesive material or both.Type: GrantFiled: February 10, 2000Date of Patent: January 20, 2004Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Steven B. Heinecke
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Publication number: 20030175503Abstract: A pressure sensitive adhesive composition is provided that includes a pressure sensitive adhesive polymer. The polymer includes: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 25° C.; at least one copolymerized monoethylenically unsaturated reinforcing monomer, wherein the reinforcing monomer, when homopolymerized, has a Tg of at least about 25° C.; covalently bonded quarternary ammonium functionality; and, optionally, at least one copolymerized monoethylenically unsaturated poly(alkylene oxide) monomer. The composition optionally further includes at least one nonreactive poly(alkylene oxide) polymer and/or at least one antimicrobial agent.Type: ApplicationFiled: January 16, 2002Publication date: September 18, 2003Applicant: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Publication number: 20030171454Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.Type: ApplicationFiled: February 6, 2003Publication date: September 11, 2003Applicant: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Publication number: 20030104042Abstract: An article that includes a substrate having a surface, at least a portion of which is provided with a pressure sensitive adhesive composition that includes a blend of discrete, crosslinked polymer microspheres and a polymer matrix. The composition has a substantially smooth, exposed surface available for adhesion.Type: ApplicationFiled: September 24, 2002Publication date: June 5, 2003Applicant: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Richard J. Goetz
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Patent number: 6518343Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.Type: GrantFiled: August 13, 1999Date of Patent: February 11, 2003Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Publication number: 20030007999Abstract: Medical dressings are disclosed that include multiple exposed pressure sensitive adhesives. One of the pressure sensitive adhesives includes a bioactive agent and is substantially contact transparent. In some embodiments, all of the adhesives are substantially contact transparent. Also provided are methods of manufacturing the medical dressings. By providing multiple exposed pressure sensitive adhesives, the pressure sensitive adhesive formulations can be varied to provide desired properties in different areas of the dressing. A pressure sensitive adhesive that exhibits relatively high tack to skin may be provided around the periphery of the dressing while a pressure sensitive adhesive incorporating a bioactive agent is provided in the center of the dressing. Alternatively, a higher tack pressure sensitive adhesive may be provided at two opposing sides of the dressing with a bioactive adhesive located in between the opposing portions of higher tack adhesive.Type: ApplicationFiled: September 3, 2002Publication date: January 9, 2003Applicant: 3M Innovative Properties CompanyInventors: Todd A. Blatchford, Steven B. Heinecke, Donald H. Lucast, Donald G. Peterson
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Patent number: 6479073Abstract: An article that includes a substrate having a surface, at least a portion of which is provided with a pressure sensitive adhesive composition that includes a blend of discrete, crosslinked polymer microspheres and a polymer matrix. The composition has a substantially smooth, exposed surface available for adhesion.Type: GrantFiled: October 7, 1996Date of Patent: November 12, 2002Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Richard J. Goetz
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Patent number: 6461467Abstract: Medical dressings are disclosed that include multiple exposed pressure sensitive adhesives. One of the pressure sensitive adhesives includes a bioactive agent and is substantially contact transparent. In some embodiments, all of the adhesives are substantially contact transparent. Also provided are methods of manufacturing the medical dressings. By providing multiple exposed pressure sensitive adhesives, the pressure sensitive adhesive formulations can be varied to provide desired properties in different areas of the dressing. A pressure sensitive adhesive that exhibits relatively high tack to skin may be provided around the periphery of the dressing while a pressure sensitive adhesive incorporating a bioactive agent is provided in the center of the dressing. Alternatively, a higher tack pressure sensitive adhesive may be provided at two opposing sides of the dressing with a bioactive adhesive located in between the opposing portions of higher tack adhesive.Type: GrantFiled: April 23, 2001Date of Patent: October 8, 2002Assignee: 3M Innovative Properties CompanyInventors: Todd A. Blatchford, Steven B. Heinecke, Donald H. Lucast, Donald G. Peterson
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Publication number: 20010051178Abstract: Medical dressings are disclosed that include multiple exposed pressure sensitive adhesives. One of the pressure sensitive adhesives includes a bioactive agent and is substantially contact transparent. In some embodiments, all of the adhesives are substantially contact transparent. Also provided are methods of manufacturing the medical dressings. By providing multiple exposed pressure sensitive adhesives, the pressure sensitive adhesive formulations can be varied to provide desired properties in different areas of the dressing. A pressure sensitive adhesive that exhibits relatively high tack to skin may be provided around the periphery of the dressing while a pressure sensitive adhesive incorporating a bioactive agent is provided in the center of the dressing. Alternatively, a higher tack pressure sensitive adhesive may be provided at two opposing sides of the dressing with a bioactive adhesive located in between the opposing portions of higher tack adhesive.Type: ApplicationFiled: April 23, 2001Publication date: December 13, 2001Applicant: 3M Innovative Properties CompanyInventors: Todd A. Blatchford, Steven B. Heinecke, Donald H. Lucast, Donald G. Peterson
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Patent number: 6198016Abstract: The present invention provides an adhesive article that includes a backing substrate and a discontinuous adhesive layer disposed thereon, wherein the backing substrate comprises a fibrous web and absorbent particulate material, and further wherein the article has an initial wet skin adhesion of at least 20 g/2.5 cm (0.08 N/cm).Type: GrantFiled: June 10, 1999Date of Patent: March 6, 2001Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Donald R. Battles
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Patent number: 6103369Abstract: A highly moisture vapor transmissive adhesive composite is disclosed comprising at least three layers, a polymeric backing layer, a high moisture vapor transmission layer, and a skin contacting adhesive layer. The high moisture vapor transmission layer may be made from a polymeric backing material, an adhesive material or both.Type: GrantFiled: May 21, 1992Date of Patent: August 15, 2000Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Steven B. Heinecke