Patents by Inventor Ai Lin
Ai Lin 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: 10538609Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: GrantFiled: June 28, 2017Date of Patent: January 21, 2020Assignee: Lifestyles Healthcare Pte. Ltd.Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20180029259Abstract: Condoms, condom formers, and methods for forming condoms are disclosed. A condom includes an open end, a closed end, a tubular sheath extending from the open end to the closed end, a tip portion adapted to cover a glans of a penis, disposed adjacent to the closed end, and a plurality of raised features disposed on the tubular sheath, having a top surface area and a base surface area, wherein the total raised top surface area is greater than the total base surface area of the condom.Type: ApplicationFiled: September 27, 2017Publication date: February 1, 2018Inventors: KC Nguyen, Beng Sim Chuah, Adeline Ai Lin Kung, Matthew Groskorth, Chayaporn Pongthanomsak
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Publication number: 20170298159Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: ApplicationFiled: June 28, 2017Publication date: October 19, 2017Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20170243187Abstract: The present disclosure provides a fuel dispensing system. The fuel dispensing system includes: (1) an on-board unit reader programmed to identify vehicle information stored in the on-board unit, (2) an electronic point-of-sales system programmed to control at least one fueling dispenser and compute payment value, (3) a front end processor programmed to communicate with the electronic point-of-sales system. The system may further comprise a financial processing computer network programmed to communicate with the front end processor. The system may be used in supporting prepaid card, credit card, or debit card transactions.Type: ApplicationFiled: September 17, 2015Publication date: August 24, 2017Inventors: Chee Lip LIN, Geraldine Ai Lin CHIN
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Patent number: 9725539Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: GrantFiled: May 29, 2015Date of Patent: August 8, 2017Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20160279839Abstract: Condoms, condom formers, and methods for forming condoms are disclosed. A condom includes an open end, a closed end, a tubular sheath extending from the open end to the closed end, a tip portion adapted to cover a glans of a penis, disposed adjacent to the closed end, and a plurality of raised features disposed on the tubular sheath, having a top surface area and a base surface area, wherein the total raised top surface area is greater than the total base surface area of the condom.Type: ApplicationFiled: June 10, 2016Publication date: September 29, 2016Inventors: KC NGUYEN, Beng Sim Chuah, Adeline Ai Lin Kung, Matthew Steven Groskorth, Chayaporn Pongthanomsak
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Publication number: 20150259451Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: ApplicationFiled: May 29, 2015Publication date: September 17, 2015Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 9074029Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: GrantFiled: February 10, 2014Date of Patent: July 7, 2015Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 9074027Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: GrantFiled: June 5, 2013Date of Patent: July 7, 2015Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 8859026Abstract: The present application described a method of reducing methoxypyrazines (MPs) in grapes or grape products comprising: (a) contacting the grape or grape product with a protein that binds to MPs at a pH of about 3 to about 4 to form a protein-MP complex; and (b) removing the protein-MP complex from the grape or grape product. Also described is a method of removing MPs from samples comprising contacting the sample with a polyethersulfone membrane.Type: GrantFiled: April 14, 2010Date of Patent: October 14, 2014Assignee: Brock UniversityInventors: Debra Inglis, Ai Lin Beh, Ian David Brindle, Gary Pickering, Eric Fabian Humes
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Publication number: 20140186628Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: ApplicationFiled: February 10, 2014Publication date: July 3, 2014Applicant: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20130291873Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: ApplicationFiled: June 5, 2013Publication date: November 7, 2013Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 8464719Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: GrantFiled: October 20, 2011Date of Patent: June 18, 2013Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20120107467Abstract: The present application described a method of reducing methoxypyrazines (MPs) in grapes or grape products comprising: (a) contacting the grape or grape product with a protein that binds to MPs at a pH of about 3 to about 4 to form a protein-MP complex; and (b) removing the protein-MP complex from the grape or grape product. Also described is a method of removing MPs from samples comprising contacting the sample with a polyethersulfone membrane.Type: ApplicationFiled: April 14, 2010Publication date: May 3, 2012Applicant: BROCK UNIVERSITYInventors: Debra Inglis, Ai Lin Beh, Ian David Brindle, Gary Pickering, Eric Fabian Humes
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Publication number: 20120031408Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: ApplicationFiled: October 20, 2011Publication date: February 9, 2012Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: DAVID M. LUCAS, SUGATH AMARASEKERA, DAVE NARASIMHAN, ADELINE AI LIN KUNG
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Patent number: 8087412Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: GrantFiled: August 19, 2008Date of Patent: January 3, 2012Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20100180426Abstract: Methods and apparatus for reducing particles in a gas delivery system are provided herein. In some embodiments, a method of fabricating a gas distribution apparatus, such as a gas distribution plate or nozzle, for a semiconductor process chamber includes providing a gas distribution apparatus having one or more apertures adapted to flow a gas therethrough. A slurry is flowed through the one or more apertures to remove a damaged surface from sidewalls of the plurality of apertures. In some embodiments, the gas distribution apparatus may be oxidized before or after flowing the slurry through the one or more apertures. In some embodiments, the gas distribution apparatus may be conditioned by providing RF power to the gas distribution plate for a desired period of time.Type: ApplicationFiled: January 21, 2009Publication date: July 22, 2010Applicant: APPLIED MATERIALS, INC.Inventors: DAVID DATONG HUO, Irene Ai-Lin Chou, David Koonce, Jennifer Y. Sun
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Publication number: 20090272384Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.Type: ApplicationFiled: August 19, 2008Publication date: November 5, 2009Applicant: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20060270390Abstract: A call barring system of mobile phone that applies an intelligent process comprising a first and a second procedures for handling different call barring conditions, wherein the first procedure is used to preset call barring conditions to all the incoming calls and the second procedure is used to recognize caller ID of an incoming call, and bars the incoming call and send a corresponding message back when the incoming call is recognized to meet the call barring condition, and then process the incoming call and store a record thereof into a special directory. Thus, user can check the record and do the necessary later on.Type: ApplicationFiled: May 31, 2005Publication date: November 30, 2006Applicant: Inventec appliances Corp.Inventors: Cheng-Shing Lai, Xiao-Long Fan, Ai-Lin Shen
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Publication number: 20060094736Abstract: The invention relates to derivatives of pyrroloquinazolinediamine, more specifically derivatives of 7-(substituted)-7H-pyrrolo[3,2-F] quinazoline-1,3-diamines that are non-toxic and are also effective in the treatment of malaria, including P. falciparum and P. vivax strains. The derivatives are certain carbamate derivatives, succinimide derivatives, alkylcarboxamides derivatives and acetamide derivative, phthalimides, alkylamines and all other amide and imide derivatives and their 1-hydroxy analogs. The derivatives of the present invention are also soluble in common organic solvents to facilitate the purification in a large scale synthesis of the composition.Type: ApplicationFiled: October 22, 2004Publication date: May 4, 2006Inventors: Ai Lin, Jian Guan, Quan Zhang, Donald Skillman