Patents by Inventor Chan U. Ko
Chan U. Ko 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: 9321938Abstract: Tackfied PSAs and tapes comprising a copolymer based on an acrylic backbone, with a glycidyl monomer, unsaturated carboxylic acid monomer and a tackifier, said adhesives being dual curable and having combination of outstanding peel adhesion on the LSE substrates, high temperature shear performance, excellent stress relieving properties and excellent converting properties.Type: GrantFiled: September 13, 2010Date of Patent: April 26, 2016Assignee: Avery Dennison CorporationInventors: Chan U. Ko, Dominique Wouters, Graham Yeadon, Prakash Mallya, Roger Maerki
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Publication number: 20140255681Abstract: An adhesive tape comprising a core layer comprising a foam and having a first surface and a second surface opposite the first surface. The adhesive tape also comprises a first adhesive layer disposed about the first surface. And, the adhesive tape also comprises a second adhesive layer disposed about the second surface. At least one of the first and second adhesive layers comprises a radiation curable rubber based adhesive. The tapes are suitable for bonding an article to a target substrate having a low surface energy and for bonding under a variety of atmospheric conditions including at elevated temperatures.Type: ApplicationFiled: March 5, 2014Publication date: September 11, 2014Applicant: Avery Dennison CorporationInventors: Thomas C. EPPLE, Chan U. KO, Robert MEDSKER, Sid SRIVASTAVA
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Publication number: 20120171484Abstract: Tackfied PSAs and tapes comprising a copolymer based on an acrylic backbone, with a glycidyl monomer, unsaturated carboxylic acid monomer and a tackifier, said adhesives being dual curable and having combination of outstanding peel adhesion on the LSE substrates, high temperature shear performance, excellent stress relieving properties and excellent converting properties.Type: ApplicationFiled: September 13, 2010Publication date: July 5, 2012Applicant: AVERY DENNISON CORPORATIONInventors: Chan U. Ko, Dominique Wouters, Graham Yeadon, Prakash Mallya, Roger Maerki
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Patent number: 8163384Abstract: This invention relates to antimicrobial composites, films, labelstocks and labels. The antimicrobial composites comprise a mixture of (A) a terpolymer prepared from a mixture comprising (i) an olefin, (ii) at least one copolymerizable comonomer comprising ethylenically unsaturated organic acids or esters, vinyl esters of saturated carboxylic acids and mixtures of two or more thereof, and (iii) carbon monoxide, and (B) an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water. The composites which are described herein are useful in preparing films, labelstocks and labels which exhibit the desirable antimicrobial properties by providing a controlled release of chlorine dioxide gas over an extended period of time.Type: GrantFiled: January 31, 2011Date of Patent: April 24, 2012Assignee: Avery Dennison CorporationInventors: William G. Hartman, Chan U. Ko
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Publication number: 20110123588Abstract: This invention relates to antimicrobial composites, films, labelstocks and labels. The antimicrobial composites comprise a mixture of (A) a terpolymer prepared from a mixture comprising (i) an olefin, (ii) at least one copolymerizable comonomer comprising ethylenically unsaturated organic acids or esters, vinyl esters of saturated carboxylic acids and mixtures of two or more thereof, and (iii) carbon monoxide, and (B) an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water. The composites which are described herein are useful in preparing films, labelstocks and labels which exhibit the desirable antimicrobial properties by providing a controlled release of chlorine dioxide gas over an extended period of time.Type: ApplicationFiled: January 31, 2011Publication date: May 26, 2011Applicant: AVERY DENNISON CORPORATIONInventors: William G. HARTMAN, Chan U. KO
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Patent number: 7914888Abstract: This invention relates to antimicrobial composites, films, labelstocks and labels. The antimicrobial composites comprise a mixture of (A) a terpolymer prepared from a mixture comprising (i) an olefin, (ii) at least one copolymerizable comonomer comprising ethylenically unsaturated organic acids or esters, vinyl esters of saturated carboxylic acids and mixtures of two or more thereof, and (iii) carbon monoxide, and (B) an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water. The composites which are described herein are useful in preparing films, labelstocks and labels which exhibit the desirable antimicrobial properties by providing a controlled release of chlorine dioxide gas over an extended period of time.Type: GrantFiled: October 14, 2004Date of Patent: March 29, 2011Assignee: Avery Dennison CorporationInventors: William G. Hartman, Chan U. Ko
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Patent number: 7910204Abstract: This invention relates to antimicrobial composites, films, labelstocks and labels. The antimicrobial composites comprise a mixture of (A) a terpolymer prepared from a mixture comprising (i) an olefin, (ii) at least one copolymerizable comonomer comprising ethylenically unsaturated organic acids or esters, vinyl esters of saturated carboxylic acids and mixtures of two or more thereof, and (iii) carbon monoxide, and (B) an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water. The composites which are described herein are useful in preparing films, labelstocks and labels which exhibit the desirable antimicrobial properties by providing a controlled release of chlorine dioxide gas over an extended period of time.Type: GrantFiled: December 20, 2007Date of Patent: March 22, 2011Assignee: Avery Dennison CorporationInventors: William G. Hartman, Chan U. Ko
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Patent number: 7566495Abstract: This invention relates to antimicrobial composites, films, labelstocks and labels. The antimicrobial composites comprise (A) a polymer mixture comprising a mixture of at least one styrene polymer and at least one urethane polymer, and (B) an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water. The composites which are described herein are useful in preparing films, labelstocks and labels which exhibit the desirable antimicrobial properties by providing a controlled release of chlorine dioxide gas over an extended period of time.Type: GrantFiled: October 14, 2004Date of Patent: July 28, 2009Assignee: Avery Dennison CorporationInventors: William G. Hartman, Chan U. Ko
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Patent number: 7294379Abstract: The present invention relates to the present invention relates to a time indicating label comprising (a) a label substrate having a first and second surface, (b) an acid-base indicator composition, and (c) an activator composition, wherein one of (b) or (c) are on the first surface of the substrate and wherein (b) and (c) when brought in contact remain adhered. The label may have a pressure sensitive adhesive on the second surface of the label. The invention further relates to a method of using the time-temperature indicating label. The labels provide an effective means for determine the safety of frozen foods. The labels also provide a means of providing security by providing name badges that are time sensitive and may not be reused. The name badges provide a means to monitor the length of a visitor's time and prevents reusing the name badge.Type: GrantFiled: March 7, 2003Date of Patent: November 13, 2007Assignee: Avery Dennison CorporationInventors: Chan U. Ko, Eung Lee, Donald E. Banks, Jerry G. Hodsdon, Jesse C. Ercillo
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Patent number: 7097853Abstract: A transdermal drug delivery device involving a macromonomer-containing acrylate or methacrylate copolymer, a softener, and a drug. Also a pressure sensitive skin adhesive involving a macromonomer containing acrylate or methacrylate copolymer and a softener.Type: GrantFiled: November 12, 1997Date of Patent: August 29, 2006Assignee: 3M Innovative Properties CompanyInventors: James E. Garbe, Daniel C. Duan, Cheryl L. Moore, Jamieson C. Keister, Chan U. Ko
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Patent number: 6989418Abstract: This invention relates to an aqueous film-forming mixture which does not contain a vinyl halide and which can be utilized to prepare conformable films which are useful in various applications such as adhesive tapes, labels and decorative sheets. The aqueous film-forming mixtures generally comprise, based on the weight of the solids in the aqueous mixture, (A) from about 50% to about 80% by weight of an acrylic-urethane copolymer which forms a film having an elongation at break of at least about 300%, and (B) from about 5% to about 25% by weight of an acrylic polymer or copolymer having a Tg of less than about 55° C., wherein the acrylic polymer or copolymer (B) is different from the acrylic-urethane copolymer (A). The aqueous mixtures also may contain up to about 40% by weight of a pigment.Type: GrantFiled: December 31, 2002Date of Patent: January 24, 2006Assignee: Avery Dennison CorporationInventors: Chan U. Ko, Aren Joost de Man, Timothy L. Paris
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Publication number: 20040126603Abstract: This invention relates to an aqueous film-forming mixture which does not contain a vinyl halide and which can be utilized to prepare conformable films which are useful in various applications such as adhesive tapes, labels and decorative sheets. The aqueous film-forming mixtures generally comprise, based on the weight of the solids in the aqueous mixture, (A) from about 50% to about 80% by weight of an acrylic-urethane copolymer which forms a film having an elongation at break of at least about 300%, and (B) from about 5% to about 25% by weight of an acrylic polymer or copolymer having a Tg of less than about 55° C., wherein the acrylic polymer or copolymer (B) is different from the acrylic-urethane copolymer (A). The aqueous mixtures also may contain up to about 40% by weight of a pigment.Type: ApplicationFiled: December 31, 2002Publication date: July 1, 2004Inventors: Chan U. Ko, Aren Joost de Man, Timothy L. Paris
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Publication number: 20040039106Abstract: This invention relates to a calendered vinyl halide film comprising (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer and (C) at least one second plasticizer different from the non-halogenated polymeric plasticizer, wherein a major amount of the polymers of the film comprise the vinyl halide polymer (A) and wherein the film has an elongation of at least about 50%. The invention also relates to an adhesive article comprising a pressure sensitive adhesive layer having a first and second surface, and a calendered vinyl halide film adhered to the first surface of the adhesive layer, wherein the vinyl halide film comprises (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer and (C) at least one second plasticizer, wherein the adhesive article has an elongation of at least about 50%. The film and subsequent articles derived therefrom have improved conformability.Type: ApplicationFiled: June 18, 2003Publication date: February 26, 2004Inventors: Aren Joost de Man, Chan U. Ko, Sam de Visser
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Publication number: 20040013839Abstract: The present invention relates to the present invention relates to a time indicating label comprising (a) a label substrate having a first and second surface, (b) an acid-base indicator composition, and (c) an activator composition, wherein one of (b) or (c) are on the first surface of the substrate and wherein (b) and (c) when brought in contact remain adhered. The label may have a pressure sensitive adhesive on the second surface of the label. The invention further relates to a method of using the time-temperature indicating label. The labels provide an effective means for determine the safety of frozen foods. The labels also provide a means of providing security by providing name badges that are time sensitive and may not be reused. The name badges provide a means to monitor the length of a visitor's time and prevents reusing the name badge.Type: ApplicationFiled: March 7, 2003Publication date: January 22, 2004Inventors: Chan U. Ko, Eung Lee, Donald E. Banks, Jerry G. Hodsdon, Jesse C. Ercilllo
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Publication number: 20030070579Abstract: A cold stick pavement marking construction is provided which includes a top flexible layer and a lower adhesive layer for adhering the pavement marking construction to a pavement surface. The top layer includes thermoplastic elastomer, resin, wax and filler. The wax and resin are preferably at least partially miscible with the thermoplastic elastomer in order to prevent phase separation of the top layer. Optionally, the top layer of the pavement marking construction includes retroreflective elements for improved visibility, and skid-resistant particles for improved traction for both vehicles and pedestrians. Other ingredients in the top layer include liquid rubber, plasticizer and antioxidant.Type: ApplicationFiled: October 1, 2001Publication date: April 17, 2003Inventors: Le Hoa Hong, Jesse C. Ercillo, Chan U. Ko
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Patent number: 6547887Abstract: Multilayer PSA label constructions that achieve a good balance of properties, namely, adhesive performance, convertibility, and laser printer performance, and, optionally, good wet-out on plastic substrates and low haze. The multilayer PSA construction comprising a facestock, a multilayer adhesive coating, and a release liner. The adhesive coating is made of a face side adhesive (FSA) layer comprising a first emulsion acrylic PSA, which is in contact with the inner surface of the facestock, and a liner side adhesive (LSA) layer, comprising a second emulsion acrylic PSA different from the first acrylic PSA, which is in contact with the FSA. The adhesive coating has a coat weight of less than about 26 g/m2 and a flow of less than about 50 &mgr;m at room temperature. The construction exhibits a loop tack value of at least about 3.5 N/25 mm at 5° C. on a polyethylene substrate.Type: GrantFiled: December 15, 1999Date of Patent: April 15, 2003Assignee: Avery Dennison CorporationInventors: Chan U. Ko, Luigi Sartor, Carol A. Koch, Paul Keller, Ian Brown, Kyung W. Min, Li Xie, Prakash Mallya, Kai Li
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Patent number: 6511743Abstract: A multilayer PSA construction includes a facestock, a hazy, first adhesive layer adjacent the facestock, and a PSA layer adjacent the first adhesive layer, and is protected until use by a release liner. The first adhesive layer includes an immiscible blend of a first elastomer having a first glass transition temperature and forming a continuous phase, and a second elastomer forming a discontinuous phase. The second elastomer has a glass transition temperature greater than the first glass transition temperature. The first adhesive layer also contains a tackifying component, which is preferentially soluble in the discontinuous phase. The PSA layer has a composition different from the first adhesive layer and is formed of at least one tackified elastomer that provides a measurable third maximum glass transition temperature, which is less than the second glass transition temperature. The multilayer PSA construction exhibits reduced migration of tackifiers and plasticizers over time.Type: GrantFiled: September 8, 2000Date of Patent: January 28, 2003Assignee: Avery Dennison CorporationInventors: Chan U. Ko, Hsiao K. Chuang, Ronald Ugolick
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Patent number: 6503620Abstract: The present invention relates to improved performance multilayer PSA constructions useful for making labels. In one embodiment the invention relates to a multilayer PSA construction comprising: (A) a multilayer adhesive laminate having an overall thickness of less than about 100 microns and comprising (I) at least one composite PSA layer comprising a continuous phase of a pressure sensitive adhesive and a discontinuous phase of non-adhesive filler particles, filler particle aggregate, or a mixture thereof, and (ii) at least one second PSA layer which is in contact with the composite layer and contains no filler or less filler than the composite layer, and (B) a facestock which is in contact with and adhered to either the composite layer or the second PSA layer of the multilayer adhesive laminate.Type: GrantFiled: October 29, 1999Date of Patent: January 7, 2003Assignee: Avery Dennison CorporationInventors: Li Xie, Jesse C. Ercillo, Yukihiko Sasaki, Kyung W. Min, Chan U. Ko
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Publication number: 20020187341Abstract: This invention relates to a vinyl halide film comprising (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer and (C) at least one second plasticizer, wherein a major amount of the polymers of the film comprise the vinyl halide polymer (A) and wherein the film has an elongation of at least about 50%. The invention also relates to an adhesive article comprising a pressure sensitive adhesive layer having a first and second surface, and a vinyl halide film adhered to the first surface of the adhesive layer, wherein the vinyl halide film comprises (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer and (C) at least one second plasticizer, wherein the adhesive article has an elongation of at least about 50%.Type: ApplicationFiled: December 21, 2001Publication date: December 12, 2002Inventors: Chan U. Ko, Aren Joost De Man
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Patent number: 6312715Abstract: Transdermal drug delivery compositions comprising pressure sensitive adhesive microspheres that contain a softening agent and/or a drug. Typically the microspheres contain at least 10 wt-% of a softening agent. The drug and/or softening agent can be incorporated into the microspheres during or after their formation.Type: GrantFiled: May 1, 1998Date of Patent: November 6, 2001Assignee: 3M Innovative Properties CompanyInventors: Adam S. Cantor, Hye-ok Choi, Joaquin Delgado, Chan U. Ko, Thu-Van Tran