Patents by Inventor Yuen-Yuen D. Chiu
Yuen-Yuen D. Chiu 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: 10538640Abstract: Polymer foam and a method for preparing the same are disclosed. In the present disclosure, the method sequentially comprises the following steps: providing a polymer body; performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; and performing a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam.Type: GrantFiled: July 27, 2016Date of Patent: January 21, 2020Assignees: LCY CHEMICAL CORP., OHIO STATE INNOVATION FOUNDATIONInventors: Ly James Lee, Dachao Li, Ying-Chieh Yen, Dajiong Fu, Yuen-Yuen D Chiu, Chiang-Hsiang Lin
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Publication number: 20170029589Abstract: Polymer foam and a method for preparing the same are disclosed. In the present disclosure, the method sequentially comprises the following steps: providing a polymer body; performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; and performing a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam.Type: ApplicationFiled: July 27, 2016Publication date: February 2, 2017Inventors: Ly James LEE, Dachao LI, Ying-Chieh YEN, Dajiong FU, Yuen-Yuen D. CHIU, Chiang-Hsiang LIN
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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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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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Patent number: 7842627Abstract: Compositions having good wrinkle resistance and other properties when made into garments an be made from an ethylene multi-block copolymers. The resulting fabrics and garments often have good chemical resistance, heat-resistances, and are dimensionally stable.Type: GrantFiled: November 30, 2007Date of Patent: November 30, 2010Assignee: Dow Global Technologies Inc.Inventors: Tong Gao, Hongyu Chen, Alberto Lora Lamia, Yuen-Yuen D. Chiu, Jerry Chien Ting Wang, Shih-Yaw Lai
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Publication number: 20100279571Abstract: 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: ApplicationFiled: July 19, 2010Publication date: November 4, 2010Inventors: 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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Patent number: 7803728Abstract: 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: September 28, 2010Assignee: Dow Global Technologies Inc.Inventors: 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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Patent number: 7776770Abstract: Knit fabric compositions have now been discovered that often have a balanced combination of desirable properties. Said fibric compositions comprise fibers of olefin block interpolymers or homogeneous branched ethylene polymers or a combination thereof. The fibers are characterized by an amount of crosslinking such that the fabric is capable of being molded.Type: GrantFiled: November 30, 2007Date of Patent: August 17, 2010Assignee: Dow Global Technologies Inc.Inventors: Jerry Chien Ting Wang, Fabio D'ottaviano, Shih-Yaw Lai, Hongyu Chen, Yuen-Yuen D. Chiu, Rio Aditya Akbar, Beverly Selle
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Patent number: 7695812Abstract: 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 16, 2007Date of Patent: April 13, 2010Assignee: Dow Global Technologies, Inc.Inventors: Hong Peng, Hongyu Chen, Yuen-Yuen D. Chiu, Shih-Yaw Lai, Eddy I. Garcia-Meitin, Charles F. Diehl
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Publication number: 20090306280Abstract: 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: ApplicationFiled: February 7, 2007Publication date: December 10, 2009Inventors: Shih-Yaw Lai, Yuen-Yuen D. Chiu, Ashish Sen, Stephane Costeux
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Publication number: 20090247033Abstract: 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: ApplicationFiled: January 10, 2008Publication date: October 1, 2009Inventors: Hong Peng, Hongyu Chen, Yuen-Yuen D. Chiu, Shih-Yaw Lai, Eddy I. Garcia-Meitin, Charles F. Diehl
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Patent number: 7504347Abstract: A fiber is obtainable from or comprises a propylene/?-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: March 17, 2009Assignee: Dow Global Technologies Inc.Inventors: 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: 20090042472Abstract: 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: ApplicationFiled: March 15, 2006Publication date: February 12, 2009Inventors: 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: 20080184498Abstract: Dyed fabric compositions have now been discovered that often have a balanced combination of desirable properties. The dyed fabric comprises one or more elastic fibers wherein the elastic fibers comprise the reaction product of at least one ethylene olefin block polymer and at least one crosslinking agent. Often the fabrics are characterized by a color change of greater than or equal to about 3.0 according to AATCC evaluation after a first wash by AATCC61-2003-2A.Type: ApplicationFiled: January 16, 2008Publication date: August 7, 2008Applicant: Dow Global Technologies Inc.Inventors: Jerry Chien-Ting Wang, Rhonda B. Neel, Yuen-Yuen D. Chiu, Tracy Li Zhi Zhang, Shih-Yaw Lai, Alberto Lora Lamia, Fabio D'ottaviano, Hongyu Chen
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Publication number: 20080176473Abstract: Knit fabric compositions have now been discovered that often have a balanced combination of desirable properties. Said fibric compositions comprise fibers of olefin block interpolymers or homogeneous branched ethylene polymers or a combination thereof. The fibers are characterized by an amount of crosslinking such that the fabric is capable of being molded.Type: ApplicationFiled: November 30, 2007Publication date: July 24, 2008Applicant: Dow Global Technologies Inc.Inventors: Jerry Chien Ting Wang, Fabio D'Ottaviano, Shih-Yaw Lai, Hongyu Chen, Yuen-Yuen D. Chiu, Rio Aditya Akbar, Beverly Selle
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Publication number: 20080171167Abstract: Improved cone dyed yarns have now been discovered which have a balanced combination of desirable properties including less broken fibers and substantially uniform color. These cone dyed yarns comprise one or more elastic fibers and hard fibers, wherein the elastic fibers comprise the reaction product of at least one ethylene olefin block polymer and at least one crosslinking agent.Type: ApplicationFiled: January 16, 2008Publication date: July 17, 2008Applicant: Dow Global Technologies Inc.Inventors: Fabio D'Ottaviano, Alberto Lora Lamia, Hong Peng, Hongyu Chen, Yuen-Yuen D. Chiu, Jose M. Rego, Supriyo Das
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Publication number: 20080138599Abstract: Compositions having good wrinkle resistance and other properties when made into garments an be made from an ethylene multi-block copolymers. The resulting fabrics and garments often have good chemical resistance, heat-resistances, and are dimensionally stable.Type: ApplicationFiled: November 30, 2007Publication date: June 12, 2008Applicant: Dow Global Technologies Inc.Inventors: Tong Gao, Hongyu Chen, Alberto Lora Lamia, Yuen-Yuen D. Chiu, Jerry Chien Ting Wang, Shih-Yaw Lai