Patents by Inventor Robert L. Sun
Robert L. Sun 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: 20030191423Abstract: A non-perforated bandage including: a) a woven fabric backing having a first type of yarn and a second type of yarn, the backing having a first major surface and a second major surface; b) a wound-contacting pad placed on the first major surface of the backing; and c) a hot melt adhesive, wherein the adhesive is applied to the first major surface of the backing material and the bandage is breathable. The yarns differ in their chemical structure or their physical structure (e.g., differing denier) or the nature of their surface treatment.Type: ApplicationFiled: April 2, 2003Publication date: October 9, 2003Inventor: Robert L. Sun
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Patent number: 6600085Abstract: An absorbent article and a method for manufacturing an absorbent article are disclosed. The absorbent article is made from an inner core absorbent material, which is surrounded by an apertured film. The absorbent material is selected from rayon, cotton, wood pulp, polyester, polyamide, polyolefin, copolymers thereof, and combinations thereof. The absorbent article has a bottom layer, which is made of an apertured film oriented such that protuberances face the inside of the absorbent article. The absorbent article also has a top layer, which is made of an apertured film oriented such that the protuberances face the outside of the absorbent article. The absorbent article may be useful in various applications including sanitary protection and bandages.Type: GrantFiled: December 19, 2000Date of Patent: July 29, 2003Assignee: Johnson & Johnson Consumer Products, Inc.Inventors: Robert L. Sun, Shmuel Dabi
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Publication number: 20020115972Abstract: An absorbent article and a method for manufacturing an absorbent article are disclosed. The absorbent article is made from an inner core absorbent material, which is surrounded by an apertured film. The absorbent material is selected from rayon, cotton, wood pulp, polyester, polyamide, polyolefin, copolymers thereof, and combinations thereof. The absorbent article has a bottom layer, which is made of an apertured film oriented such that protuberances face the inside of the absorbent article. The absorbent article also has a top layer, which is made of an apertured film oriented such that the protuberances face the outside of the absorbent article. The absorbent article may be useful in various applications including sanitary protection and bandages.Type: ApplicationFiled: December 20, 2000Publication date: August 22, 2002Inventors: Shmuel Dabi, Robert L. Sun
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Publication number: 20020115953Abstract: An absorbent article and a method for manufacturing an absorbent article are disclosed. The absorbent article is made from an inner core absorbent material, which is surrounded by an apertured film. The absorbent material is selected from rayon, cotton, wood pulp, polyester, polyamide, polyolefin, copolymers thereof, and combinations thereof. The absorbent article has a bottom layer, which is made of an apertured film oriented such that protuberances face the inside of the absorbent article. The absorbent article also has a top layer, which is made of an apertured film oriented such that the protuberances face the outside of the absorbent article. The absorbent article may be useful in various applications including sanitary protection and bandages.Type: ApplicationFiled: December 19, 2000Publication date: August 22, 2002Inventors: Robert L. Sun, Shmuel Dabi
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Patent number: 5514104Abstract: The present invention provides improvements in absorbent products, but is particularly useful with urinary incontinence pads. An embossed pattern on the bottom layer of the double layer absorbent core construction improves the removal of urine or other fluids from the discharge zone to be ready for next void. One or more V-shaped notches cut at both ends of the pad provides the ergonomic fit of the pad to reduce the inevitable stiffness. The sides are designed as a flap which curves during the sealing process and provide natural curved flaps which form a soft gasket cushion and yields extra leak protection in the crotch area.Type: GrantFiled: August 26, 1994Date of Patent: May 7, 1996Assignee: McNeil-PPC, Inc.Inventors: Robert Cole, Daniel Formosa, Thomas J. Helmestetter, Rory Holmes, Stephen Russak, Robert Salome, Beth Stern, Robert L. Sun, Tucker Viemeister, Stacy A. Walsh, Jennifer R. Worringer
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Patent number: 4879178Abstract: What is disclosed are novel hot melt adhesives having pressure sensitive properties that are comprised of a combination of two acrylic-based copolymers containing the novel monomer 1(2)-methyl-3-oxa-4-oxo-5-aza-nonyl methacrylate, one of the copolymers being a low glass transition temperature (Tg) compolymer and the other a high Tg copolymer and which hot melt adhesives, by means of reversible hydrogen bond formation and dissociation, possess the reversible properties of providing a strong cohesive strength at ambient temperature but also having a melt viscosity at elevated coating temperatures such that it can be used in hot melt coating equipment; a process for making said hot melt adhesives; and a process for making adhesive tapes and bandages using said adhesives.Type: GrantFiled: May 27, 1988Date of Patent: November 7, 1989Assignee: Johnson & Johnson Patient Care, Inc.Inventors: Robert L. Sun, James F. Kenney
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Patent number: 4762888Abstract: What is disclosed are novel hot melt adhesives having pressure sensitive properties that are comprised of a combination of two acrylic-based copolymers containing the novel monomer 1(2)-methyl-3-oxa-4-oxo-5-aza-nonyl methacrylate, one of the copolymers being a low glass transition temperature (Tg) copolymer and the other a high Tg copolymer and which hot melt adhesives, by means of reversible hydrogen bond formation and dissociation, possess the reversible properties of providing a strong cohesive strength at ambient temperature but also having a melt viscosity at elevated coating temperatures such that it can be used in hot melt coating equipment; a process for making said hot melt adhesives; and a process for making adhesive tapes and bandages using said adhesives.Type: GrantFiled: January 12, 1987Date of Patent: August 9, 1988Assignee: Johnson & Johnson Products, Inc.Inventors: Robert L. Sun, James F. Kenney
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Patent number: 4701509Abstract: Novel acrylate, hot melt, pressure-sensitive adhesives are disclosed which are polymerized compositions of:______________________________________ Starting Monomer %, by Polymer Weight ______________________________________ 2-ethylhexyl acrylate (2-EHA) 20-80 n-butyl acrylate (BA) 0-45 isobutyl methacrylate (IBMA) 15-25 N--vinyl caprolactam (NVCL) 10-25 ______________________________________useful for medical products such as ostomy seals, adhesive tapes and bandages, wound drainage adhesive seals, wound dressings and the like that adhere well to human skin even under moist conditions.Type: GrantFiled: September 17, 1984Date of Patent: October 20, 1987Assignee: Johnson & Johnson Products, Inc.Inventors: Robert L. Sun, James F. Kenney