Patents by Inventor Shih-Yaw Lai
Shih-Yaw Lai 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: 10472512Abstract: The present disclosure provides a composition comprising or obtained from a reaction mixture comprising a first propylene-based polymer, an olefin block copolymer, and a cure component. The cure component comprises (i) a second propylene/?-olefin copolymer, (ii) a scorch retardant, and (iii) a crosslinking agent.Type: GrantFiled: May 11, 2017Date of Patent: November 12, 2019Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Shuwen Peng, Yabin Sun, Mahalia Soediono, Shih-Yaw Lai
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Publication number: 20170247536Abstract: The present disclosure provides a composition comprising or obtained from a reaction mixture comprising a first propylene-based polymer, an olefin block copolymer, and a cure component. The cure component comprises (i) a second propylene/?-olefin copolymer, (ii) a scorch retardant, and (iii) a crosslinking agent.Type: ApplicationFiled: May 11, 2017Publication date: August 31, 2017Inventors: Shuwen Peng, Yabin Sun, Mahalia Soediono, Shih-Yaw Lai
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Patent number: 9670353Abstract: The present disclosure provides a composition comprising or obtained from a reaction mixture comprising a first propylene-based polymer, an olefin block copolymer, and a cure component. The cure component comprises (i) a second propylene/?-olefin copolymer, (ii) a scorch retardant, and (iii) a crosslinking agent.Type: GrantFiled: December 31, 2012Date of Patent: June 6, 2017Assignee: Dow Global Technologies LLCInventors: Shuwen Peng, Yabin Sun, Mahalia Soediono, Shih-Yaw Lai
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Patent number: 9617356Abstract: A crosslinked polyethylene composition comprising 100 parts by weight of polyethylene, 0.05-5 parts by weight of crosslinking agent, 0.03-3 parts by weight of crosslinking aid. Polyethylene is a copolymer, homopolymer and/or a mixture thereof. The crosslinking agent is an organic peroxide having a half-life period longer than 3 minutes at 190° C. and/or a multi-membered heterocyclic alkane consisting of 3 to 6 carbon atoms and 3 to 6 oxygen atoms and/or a derivative thereof. The crosslinking aid is an organic substance containing allyl, maleimido, (meth)acrylate group and/or a polymer having a vinyl content higher than 50%. Preferably, the crosslinking aid is triallyl isocyanate (TAIC), triallyl cyanurate (TAC) or a mixture thereof. The crosslinked polyethylene composition has a crosslinking efficiency index >1000 Nm/g and a ? torque value >15 Nm at 220° C., and has a high safe processing temperature and long crosslinking delay, and therefore is particularly suitable for rotationally molded products.Type: GrantFiled: June 13, 2012Date of Patent: April 11, 2017Assignees: National Institute of Clean-and-Low-Carbon Energy, Shenhua Group Corporation LimitedInventors: Xuelian Chen, Wenbin Liang, Yanhua Niu, Shih-yaw Lai
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Patent number: 9388296Abstract: Disclosed in the present invention is a crosslinked polyethylene composition having improved processability comprises: 100 parts by weight of polyethylene, 0.03-5 parts by weight of crosslinking agent, 0.03-5 parts by weight of crosslinking promoter, and 0.01-1.5 parts by weight of free radical inhibitor, wherein the polyethylene is a copolymer and/or homopolymer containing at least 90 wt. % of vinyl and at least one C3-C8 ?-alkenyl, and has a density in the range of 0.920-0.970 g/cm3, a melt index in the range of 2.5-17.5 g/10 min; the crosslinking agent is a peroxide crosslinking agent; the crosslinking promoter is an organic substance containing maleimido, (meth)acrylate group, and/or allyl, and/or a polymer containing more than 50% of vinyl; the free radical inhibitor is an organic antioxidant, a quinhydrone and/or a substituted quinhydrone.Type: GrantFiled: June 4, 2012Date of Patent: July 12, 2016Assignees: National Institute of Clean-and-Low-Carbon Energy, Shenhua Group Corporation LimitedInventors: Xuelian Chen, Wenbin Liang, Yanhua Niu, Shih-yaw Lai
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Patent number: 9303152Abstract: A method for processing a thermoplastic material that comprises a microwave-sensitive polymeric region, wherein the method includes exposing the microwave-sensitive polymeric region to microwaves; wherein the exposing results in an increase in the temperature of the polymeric region; and processing the thermoplastic material is disclosed.Type: GrantFiled: May 31, 2007Date of Patent: April 5, 2016Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Michael Cook, Rudolfo Salmang, Michael S. Paquette, Robert P. Haley, Jr., Sam L. Crabtree, Jose J. Longoria, Herbert Bongartz, Andreas Mayer, Saeed Siavoshani, Peter K. Mercure, Shih-Yaw Lai, Jeff Watkins, John L. Sugden, Ronald Van Daele
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Publication number: 20150299455Abstract: The present disclosure provides a composition comprising or obtained from a reaction mixture comprising a first propylene-based polymer, an olefin block copolymer, and a cure component. The cure component comprises (i) a second propylene/?-olefin copolymer, (ii) a scorch retardant, and (iii) a crosslinking agent.Type: ApplicationFiled: December 31, 2012Publication date: October 22, 2015Applicant: Dow Global Technologies LLCInventors: Shuwen Peng, Yabin Sun, Mahalia Soediono, Shih-Yaw Lai
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Publication number: 20150291774Abstract: Disclosed in the present invention is a crosslinked polyethylene composition having improved processability comprises: 100 parts by weight of polyethylene, 0.03-5 parts by weight of crosslinking agent, 0.03-5 parts by weight of crosslinking promoter, and 0.01-1.5 parts by weight of free radical inhibitor, wherein the polyethylene is a copolymer and/or homopolymer containing at least 90 wt. % of vinyl and at least one C3-C8 ?-alkenyl, and has a density in the range of 0.920-0.970 g/cm3, a melt index in the range of 2.5-17.5 g/10 min; the crosslinking agent is a peroxide crosslinking agent; the crosslinking promoter is an organic substance containing maleimido, (meth)acrylate group, and/or allyl, and/or a polymer containing more than 50% of vinyl; the free radical inhibitor is an organic antioxidant, a quinhydrone and/or a substituted quinhydrone.Type: ApplicationFiled: June 4, 2012Publication date: October 15, 2015Applicant: National Institute of Clean-and-low-Carbon EnergyInventors: Xuelian Chen, Wenbin Liang, Yanhua Niu, Shih-yaw Lai
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Publication number: 20150232586Abstract: A crosslinked polyethylene composition comprising 100 parts by weight of polyethylene, 0.05-5 parts by weight of crosslinking agent, 0.03-3 parts by weight of crosslinking aid. Polyethylene is a copolymer, homopolymer and/or a mixture thereof. The crosslinking agent is an organic peroxide having a half-life period longer than 3 minutes at 190° C. and/or a multi-membered heterocyclic alkane consisting of 3 to 6 carbon atoms and 3 to 6 oxygen atoms and/or a derivative thereof. The crosslinking aid is an organic substance containing allyl, maleimido, (meth)acrylate group and/or a polymer having a vinyl content higher than 50%. Preferably, the crosslinking aid is triallyl isocyanate (TAIC), triallyl cyanurate (TAC) or a mixture thereof. The crosslinked polyethylene composition has a crosslinking efficiency index >1000 Nm/g and a ? torque value >15 Nm at 220° C., and has a high safe processing temperature and long crosslinking delay, and therefore is particularly suitable for rotationally molded products.Type: ApplicationFiled: June 13, 2012Publication date: August 20, 2015Applicant: National Institute of Clean-and Low-Carbon EnergyInventors: Xuelian Chen, Wenbin Liang, Yanhua Niu, Shih-yaw Lai
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Patent number: 8524793Abstract: A composition comprising at least the following: A) an interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene, and wherein the interpolymer comprises less than, or equal to, 5 weight percent of the polyene, based on the total amount of polymerized monomers, and wherein the interpolymer has a molecular weight distribution (Mw/Mn) less than 3; B) an interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene, and wherein the interpolymer comprises greater than, or equal to, 5 weight percent of the polyene, based on the total amount of polymerized monomer; and wherein the total polyene content is less than 7 weight percent.Type: GrantFiled: June 18, 2009Date of Patent: September 3, 2013Assignee: Dow Global Technologies, LLCInventors: Shuwen Peng, Wenbin Liang, Stephen Y. Cheng, Peter X. Lin, Shih-Yaw Lai
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Patent number: 8361621Abstract: A microwave-sensitive thermoplastic composition that includes a microwave-receptive additive; and a thermoplastic polymer; wherein the microwave-receptive additive is selected from the group consisting of sepiolite clay, molecular sieves formed from ammonium ion salts or hydrogen ion salts, aluminophosphates, silicoaluminophasphates, silicotitanates, organo-modified clays, molecular sieves or zeolites having a caged organic microwave receptive material, and combinations thereof.Type: GrantFiled: May 31, 2007Date of Patent: January 29, 2013Assignee: Dow Global Technologies LLCInventors: Michael Cook, Michael S. Paquette, Robert P. Haley, Jr., Sam Crabtree, Jose Longoria, Saeed Siavoshani, Peter K. Mercure, Shih-Yaw Lai, Ronald G. Van Daele
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Patent number: 8220985Abstract: The invention is a device for processing materials comprising a mixing chamber having a valve for removal of the material from the mixing chamber and a piston which fits within the mixing chamber in a manner such that the piston can be moved to remove substantially all material from the mixing chamber via the valve; at least one, preferably at least two, retractable mixing element(s) wherein each of such elements is movable in and out of the mixing chamber through a port wherein the element and port are configured such that during mixing and when the element is withdrawn from the mixing chamber substantially no material is removed from the mixing chamber via the port. The invention is also a method of using such a device and a system comprising use of such devices in an automated or partially automated array.Type: GrantFiled: February 7, 2007Date of Patent: July 17, 2012Assignee: Dow Global Technologies LLCInventors: Mark Alan Barger, Parvinder Singh Walia, Matthew T. Bishop, Anthony Charles Neubauer, Joseph Dooley, Shih-Yaw Lai, Luciana Rudolph
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Patent number: 8119237Abstract: A fiber is obtainable from or comprises a blend of a propylene based polymer and an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven, knitted or non-woven fabrics can be made from such fibers.Type: GrantFiled: January 10, 2008Date of Patent: February 21, 2012Assignee: Dow Global Technologies LLCInventors: Hong Peng, Hongyu Chen, Yuen-Yuen D. Chiu, Shih-Yaw Lai, Eddy I. Garcia-Meitin, Charles F. Diehl
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Patent number: 8076417Abstract: The present invention relates to crosslinked, olefin elastic fibers where the olefin materials are specifically selected to provide a more robust fiber with higher tenacity and greater temperature stability. Such fibers will be less subject to breakage during fiber spinning and post-spinning (downstream processing) operations including spool formation and unwinding. The specific olefin material used is a blend having an overall melt index (I2) of less than 2.5 g/10 min before crosslinking with a density in the range of 0.865 to 0.885 g/cm3. One component of the blend will be characterized as having either a density in the range of from 0.855 to 0.88 g/cm3 or a residual crystallinity at 80° C. of greater than 9 percent but not both. The at least one other component will meet at least whichever characteristic the first component does not meet.Type: GrantFiled: February 7, 2007Date of Patent: December 13, 2011Assignee: Dow Global Technologies LLCInventors: Shih-Yaw Lai, Yuen-Yuen D Chiu, Ashish Sen, Stephane Costeux
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Patent number: 8067319Abstract: A fiber is obtainable from or comprises an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.Type: GrantFiled: July 19, 2010Date of Patent: November 29, 2011Assignee: Dow Global Technologies LLCInventors: Benjamin C. Poon, Yunwa W. Cheung, Shih-Yaw Lai, Ashish Sen, Hongyu Chen, Yuen-Yuen D. Chiu, Rajen M. Patel, Andy C. Chang, Antonios K. Doufas, Hong Peng
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Publication number: 20110130497Abstract: Cyclic phosphazene compounds that are substituted with phosphorus-containing groups are effective flame retardants for organic polymers.Type: ApplicationFiled: November 2, 2007Publication date: June 2, 2011Inventors: Kenny C. Su, Jinder Jow, Journey L. Zhu, Xiaozhen Tang, Polaris Bai, Steven D. Liu, Shih-Yaw Lai
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Patent number: 7947367Abstract: A fiber is obtainable from or comprises an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and (1) cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.Type: GrantFiled: March 15, 2006Date of Patent: May 24, 2011Assignee: Dow Global Technologies LLCInventors: Benjamin C. Poon, Yunwa W. Cheung, Shih-Yaw Lai, Ashish Sen, Hongyu Chen, Yuen-Yuen D. Chiu, Rajen M. Patel, Andy C. Chang, Antonios K. Doufas, Hong Peng
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Publication number: 20110104496Abstract: A microwave-sensitive thermoplastic composition that includes a microwave-receptive additive; and a thermoplastic polymer; wherein the microwave-receptive additive is selected from the group consisting of sepiolite clay, molecular sieves formed from ammonium ion salts or hydrogen ion salts, aluminophosphates, silicoaluminophasphates, silicotitanates, organo-modified clays, molecular sieves or zeolites having a caged organic microwave receptive material, and combinations thereof.Type: ApplicationFiled: May 31, 2007Publication date: May 5, 2011Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventors: Michael Cook, Michael S. Paquette, Robert P. Haley, JR., Sam Crabtree, Jose Longoria, Saeed Siavoshani, Peter K. Mercure, Shih-Yaw Lai, Ronald G. Van Daele
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Publication number: 20110039082Abstract: The present invention relates to oriented films having improved shrinkage force, shrinkage temperature, tear strength, seal strength and/or bubble stability. For example, the shrink tension of the oriented film stretched at 110° C. is less than 3 MPa. The oriented film comprises a polymer composition comprising at least one ethylene/?-olefin interpolymer, wherein the ethylene/?-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm>?6553.3+13735(d)?7051.7(d)2.Type: ApplicationFiled: February 29, 2008Publication date: February 17, 2011Inventors: Xiaobing B. Yun, Shih-Yaw Lai, Jeffrey Jing Li, Hongyu Chen, Yutaka Maehara
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Publication number: 20110034577Abstract: The invention provides a composition comprising at least the following: A) from “greater than zero” to “less than 100” phr (based on sum weight of Components A and B) of an interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene, and wherein the interpolymer comprises less than, or equal to, 5 weight percent of the polyene, based on the total amount of polymerized monomers, and wherein the interpolymer has a molecular weight distribution (Mw/Mn) less than 3; B) from “less than 100” to “greater than zero” phr (based on sum weight of Components A and B) of an interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene, and wherein the interpolymer comprises greater than, or equal to, 5 weight percent of the polyene, based on the total amount of polymerized monomer; and wherein the total polyene content is less than 7 weight percent (based on the total amount of polymerized monomers in the interpolymers of Components A and B).Type: ApplicationFiled: June 18, 2009Publication date: February 10, 2011Applicant: Dow Global Technologies, Inc.Inventors: Shuwen Peng, Wenbin Liang, Stephen Y. Cheng, Peter X. Lin, Shih-Yaw Lai