Patents by Inventor Chon-Yie Lin
Chon-Yie 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).
-
Patent number: 7026040Abstract: This invention relates generally to films made from crystalline polypropylene polymers. Specifically, this invention relates to films comprising crystalline polypropylene polymer compositions containing both propylene homopolymers and propylene copolymers. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymers and copolymers using propylene with a small amount of comonomer, preferably ethylene. The resulting polymers are excellent for use in the production of biaxially oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional polypropylene polymers.Type: GrantFiled: August 31, 2004Date of Patent: April 11, 2006Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Aspy Keki Mehta, Michael Chia-Chao Chen, Chon-Yie Lin, James John Mcalpin, Anthony Nicholas Speca, Kelly Tormaschy
-
Patent number: 6977287Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with ?,?-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of ?,?-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1° C. to 8° C.Type: GrantFiled: June 24, 2003Date of Patent: December 20, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy K. Mehta, Armenag H. Dekmezian, Main Chang, Rajan K. Chudgar, Christopher R. Davey, Chon-Yie Lin, Galen C. Richeson, Palanisamy Arjunan, Olivier Jean Georjon
-
Publication number: 20050032983Abstract: This invention relates generally to films made from crystalline polypropylene polymers. Specifically, this invention relates to films comprising crystalline polypropylene polymer compositions containing both propylene homopolymers and propylene copolymers. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymers and copolymers using propylene with a small amount of comonomer, preferably ethylene. The resulting polymers are excellent for use in the production of biaxially oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional polypropylene polymers.Type: ApplicationFiled: August 31, 2004Publication date: February 10, 2005Inventors: Aspy Mehta, Michael Chen, Chon-Yie Lin, James Mcalpin, Anthony Speca, Kelly Tormaschy
-
Publication number: 20040260001Abstract: The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: February 19, 2004Publication date: December 23, 2004Inventors: Chon-Yie Lin, Wen Li, Bryan R. Chapman, Michael B. Kelly, Bruce R. Lundmark, David J. Lohse, Henry Wu-Hsiang Yang, Sandra Denise Schregenberger
-
Patent number: 6809168Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations.Type: GrantFiled: April 2, 2003Date of Patent: October 26, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy K. Mehta, Armenag H. Dekmezian, Main Chang, Rajan K. Chudgar, Olivier Jean Georjon, Chon-Yie Lin, Michael C. Chen, Galen C. Richeson, Palanisamy Arjunan
-
Patent number: 6806316Abstract: This invention relates generally to crystalline polypropylene polymers and methods for their production. Specifically, this invention relates to crystalline polypropylene polymer compositions comprising both propylene homopolymers and propylene copolymers. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymers and copolymers using propylene with a small amount of comonomer, preferably ethylene. The resulting polymers are excellent for use in the production of biaxially oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional polypropylene polymers.Type: GrantFiled: November 25, 2002Date of Patent: October 19, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Aspy Keki Mehta, Michael Chia-Chao Chen, Chon-Yie Lin, James John McAlpin, Anthony Nicholas Speca, Kelly Tormaschy
-
Publication number: 20040186214Abstract: The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: February 19, 2004Publication date: September 23, 2004Inventors: Wen Li, Chon-Yie Lin, Bryan R. Chapman, Michael B. Kelly
-
Publication number: 20040171782Abstract: Embodiments of the present invention include a polypropylene homopolymer synthesized from a metallocene catalyst system and methods of forming the homopolymer, the homopolymer having an aluminum and chlorine recoverables value of less than 25 ppm and a xylene solubles of less than 1 wt % relative to the total weight of the homopolymer. The resulting homopolymer has other desirable properties such as a heat deflection temperature at 0.45 MPa of from 90° C. to 110° C., and a MWD value of from 1.7 to 5.0. These properties make embodiments of the homopolymer desirable for films, and in particular for capacitor films.Type: ApplicationFiled: July 8, 2003Publication date: September 2, 2004Inventors: Chon-Yie Lin, Bernard Louis Bossert, Chen Michael Chia-Chao, Susan Chia-Yu Yeh
-
Publication number: 20040106723Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: August 12, 2003Publication date: June 3, 2004Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
-
Publication number: 20040087749Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations.Type: ApplicationFiled: April 2, 2003Publication date: May 6, 2004Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy K. Mehta, Armenag H. Dekmezian, Main Chang, Rajan K. Chudgar, Armenag H. Dekmezian, Olivier Jean Georjon, Chon-Yie Lin, Michael C. Chen, Galen C. Richeson, Palanisamy Arjunan
-
Publication number: 20040087750Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further indude at least two crystalline populations.Type: ApplicationFiled: June 24, 2003Publication date: May 6, 2004Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy K. Mehta, Armenag H. Dekmezian, Main Chang, Rajan K. Chudgar, Christopher R. Davey, Chon-Yie Lin, Galen C. Richeson, Palanisamy Arjunan, Olivier Jean Georjon
-
Publication number: 20040054040Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized plasticizer; wherein the non-functionalized plasticizer may comprise C6 to C200 paraffins (including branched and normal paraffins) having a pour point of less than −5° C. In one embodiment, the non-functionalized plasticizer is an isoparaffin comprising C6 to C25 isoparaffins. In another embodiment the non-functionalized plasticizer is a polyalphaolefin comprising C10 to C100 n-paraffins. The polyolefin may be a polypropylene homopolymer, copolymer, impact copolymer, or blends thereof, and may include a plastomer. Non-limiting examples of desirable article of manufacture made from compositions of the invention include films, tubes, pipes, sheets, fibers, woven and nonwoven fabrics, automotive components, furniture, sporting equipment, food storage containers, transparent and semi-transparent articles, toys, tubing and pipes, and medical devices.Type: ApplicationFiled: August 4, 2003Publication date: March 18, 2004Inventors: Chon Yie Lin, Chia Yung Cheng, Henry Wu-Hsiang Yang
-
Publication number: 20040030050Abstract: The present invention provides isotactic polypropylene compositions suitable for cast film applications, cast polypropylene films made therefrom, and processes for forming such films. The novel polypropylene films are formed from film resins having a melt flow ratio of from 6-15 dg/min, with a narrow molecular weight distribution, narrow composition distribution, low level of solvent extractables, and increased film clarity (i.e., decreased haze %) compared to prior art Ziegler-Natta polypropylene film resins. The polypropylene films can be cast from an extruded polypropylene polymer, the extruded isotactic polypropylene polymer being formed by polymerization with a fluorided silica supported catalyst.Type: ApplicationFiled: June 9, 2003Publication date: February 12, 2004Inventors: Chon-Yie Lin, Michael C-C Chen, Aspy K. Mehta
-
Publication number: 20030153689Abstract: This invention relates generally to crystalline polypropylene polymers and methods for their production. Specifically, this invention relates to crystalline polypropylene polymer compositions comprising both propylene homopolymers and propylene copolymers. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymers and copolymers using propylene with a small amount of comonomer, preferably ethylene. The resulting polymers are excellent for use in the production of biaxially oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional polypropylene polymers.Type: ApplicationFiled: November 25, 2002Publication date: August 14, 2003Inventors: Aspy Keki Mehta, Michael Chia-Chao Chen, Chon-Yie Lin, James John McAlpin, Anthony Nicholas Speca, Kelly Tormaschy
-
Patent number: 6476173Abstract: This invention relates to isotactic propylene homopolymer compositions obtained from metallocene catalysis wherein the polymer has a molecular weight distribution (Mw/Mn) in the range of from about 2.5 to about 20.0. The isototic propylene homopolymer composition may be prepared in a multiple stage polymerization process using the same metallocene component in at least two stages.Type: GrantFiled: November 7, 2000Date of Patent: November 5, 2002Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Chon-Yie Lin, Michael Chia-Chao Chen, Aspy Keki Mehta, Rajan K. Chudgar
-
Patent number: 6207750Abstract: This invention relates to isotactic propylene homopolymer compositions obtained from metallocene catalysis wherein the polymer has a molecular weight distribution (Mw/Mn) in the range of from about 2.5 to about 20.0. The isotactic propylene homopolymer composition may be prepared in a multiple stage polymerization process using the same metallocene component in at least two stages.Type: GrantFiled: April 16, 1999Date of Patent: March 27, 2001Assignee: Exxon Chemical Patents, Inc.Inventors: Chon-Yie Lin, Michael Chia-Chao Chen, Aspy Keki Mehta, Rajan K. Chudgar
-
Patent number: 5171504Abstract: The invention provides improved thermoplastic high strength, highly oriented fibers and a process for producing the fibers by melt spinning a thermoplastic polymer to form a threadline, preferably passing the threadline through a thermal conditioning zone and then quenching the threadline. The quenched threadline is passed through a hydraulic drag bath maintained at a temperature of greater than the glass transition temperature of the polymer which substantially increases the threadline stress and results in drawing of the threadline. The threadline is withdrawn from the drag bath at a withdrawal rate of at least 3,000 meters per minute.Type: GrantFiled: March 28, 1991Date of Patent: December 15, 1992Assignee: North Carolina State UniversityInventors: John A. Cuculo, Paul A. Tucker, Chon-Yie Lin, Ferdinand Lundberg
-
Patent number: 4909976Abstract: The high speed melt spinning of synthetic polymer fibers is provided with on-line zone heating and cooling by which the strand emerging from the spinneret is initially cooled to an optimum temperature above the glass transition point of the polymer, the maintained near that temperature for a period of time to promote development of desirable fiber properties such as crystallization and crystal orientation, and then finally cooled below the solidification point for take up.Type: GrantFiled: May 9, 1988Date of Patent: March 20, 1990Assignee: North Carolina State UniversityInventors: John A. Cuculo, Paul A. Tucker, Gao-Yuan Chen, Chon-yie Lin, Jeffrey Denton, Ferdinand Lundberg