Patents by Inventor David Xiangping Zou
David Xiangping Zou 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: 8492464Abstract: Flame retardant thermoplastic compositions that are capable of being used in a laser direct structuring process. The compositions include a thermoplastic resin, a laser direct structuring additive, and a flame retardant. The compositions offer flame retardant characteristics while also substantially maintaining the mechanical properties of the base thermoplastic resin, such as the impact strength and/or HDT of the composition. The compositions can be used in a variety of applications such as personal computers, notebook and portable computers, cell phone and other such communications equipment.Type: GrantFiled: May 19, 2009Date of Patent: July 23, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Yanjun (Frank) Li, Jiru Meng, David Xiangping Zou
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Patent number: 8399546Abstract: A flame retardant thermoplastic composition having excellent physical properties that includes 20 to 90 wt. % of a polycarbonate resin; from 1 to 35 wt. % of an impact modifier; from 0.5 to 30 wt. % of a polysiloxane-polycarbonate copolymer including from 8 to 30 wt. % polydimethylsiloxane units or the equivalent molar amount of other diorganosiloxane units; from 0.5 to 20 wt. % of a phosphorus-containing flame retardant, and from 3 to 30 wt. % of metal fiber, each based on the total combined weight of the thermoplastic composition, exclusive of any filler. In one embodiment, a molded sample of the thermoplastic composition having a thickness of 3.0 mm (±10%) has an EMI shielding of at least 20 dB. In addition, a molded sample of the thermoplastic composition is capable of achieving UL94 V0 or V1 rating at a thickness of 1.5 mm (±10%). The compositions are useful in forming flame retardant articles having EMI shielding characteristics.Type: GrantFiled: January 4, 2007Date of Patent: March 19, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Gang Li, Thomas Ebeling, Monica M. Marugan, Zhaohui Qu, Srinivas Siripurapu, David Xiangping Zou
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Patent number: 8357739Abstract: A thermoplastic composition that includes a base polymer, a fluoropolymer, and a fluoride scavenger having suitable fluoride levels such that use in the electronics industry is appropriate. An extrusion method may be used for making the thermoplastic composition. The compositions may then be used to form a molded article. The composition has lower fluoride levels as compared to thermoplastic compositions without the fluoride scavenger making it suitable for use in electronic applications, as well as medical or food or beverage applications where fluoride ions are a concern.Type: GrantFiled: December 11, 2006Date of Patent: January 22, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Xin Huang, Tong Sun, Huagui Yang, David Xiangping Zou
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Patent number: 8314181Abstract: A method of making resin composition having excellent wear properties that includes 50 to 99 wt. % of a polycarbonate resin and from 1 to 50 wt. % of a polyolefin that has been modified with at least one functional group selected from a carboxyl, an acid anhydride, an epoxy groups or mixtures containing at least one of the foregoing functional groups, each based on the total combined weight of the resin composition, exclusive of any filler. The resin composition optionally contains an unmodified polyolefin and/or a bi-functional monomer. The resin composition can be molded into articles having improved wear characteristics. The process is a one-step process that improves the efficiency and/or yield of the resin composition as compared to prior-art two-step processes.Type: GrantFiled: September 20, 2011Date of Patent: November 20, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventors: Ye-Gang Lin, Donghai Sun, David Xiangping Zou
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Patent number: 8309640Abstract: High dielectric constant thermoplastic compositions that are capable of being used in a laser direct structuring process. The compositions include a thermoplastic base resin, a laser direct structuring additive, and at least one ceramic filler. The compositions provide a high dielectric constant, low loss tangent thermoplastic composition. The compositions can be used in a variety of applications such as personal computers, notebook and portable computers, cell phone antennas and other such communications equipment, medical applications, RFID applications, and automotive applications.Type: GrantFiled: May 19, 2009Date of Patent: November 13, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventors: Yanjun (Frank) Li, Jiru Meng, David Xiangping Zou
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Patent number: 8273825Abstract: A method of making resin composition having excellent wear properties that includes 50 to 99 wt. % of a polycarbonate resin and from 1 to 50 wt. % of a polyolefin that has been modified with at least one functional group selected from a carboxyl, an acid anhydride, an epoxy groups or mixtures containing at least one of the foregoing functional groups, each based on the total combined weight of the resin composition, exclusive of any filler. The resin composition optionally contains an unmodified polyolefin and/or a bi-functional monomer. The resin composition can be molded into articles having improved wear characteristics. The process is a one-step process that improves the efficiency and/or yield of the resin composition as compared to prior-art two-step processes.Type: GrantFiled: March 20, 2007Date of Patent: September 25, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventors: Ye-Gang Lin, Donghai Sun, David Xiangping Zou
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Publication number: 20120010365Abstract: A method of making resin composition having excellent wear properties that includes 50 to 99 wt. % of a polycarbonate resin and from 1 to 50 wt. % of a polyolefin that has been modified with at least one functional group selected from a carboxyl, an acid anhydride, an epoxy groups or mixtures containing at least one of the foregoing functional groups, each based on the total combined weight of the resin composition, exclusive of any filler. The resin composition optionally contains an unmodified polyolefin and/or a bi-functional monomer. The resin composition can be molded into articles having improved wear characteristics. The process is a one-step process that improves the efficiency and/or yield of the resin composition as compared to prior-art two-step processes.Type: ApplicationFiled: September 20, 2011Publication date: January 12, 2012Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Ye-Gang Lin, Donghai Sun, David Xiangping Zou
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Publication number: 20090292051Abstract: High dielectric constant thermoplastic compositions that are capable of being used in a laser direct structuring process. The compositions include a thermoplastic base resin, a laser direct structuring additive, and at least one ceramic filler. The compositions provide a high dielectric constant, low loss tangent thermoplastic composition. The compositions can be used in a variety of applications such as personal computers, notebook and portable computers, cell phone antennas and other such communications equipment, medical applications, RFID applications, and automotive applications.Type: ApplicationFiled: May 19, 2009Publication date: November 26, 2009Applicant: SABIC Innovative Plastics IP B.V.Inventors: Yanjun (Frank) Li, Jiru Meng, David Xiangping Zou
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Publication number: 20090292048Abstract: Flame retardant thermoplastic compositions that are capable of being used in a laser direct structuring process. The compositions include a thermoplastic resin, a laser direct structuring additive, and a flame retardant. The compositions offer flame retardant characteristics while also substantially maintaining the mechanical properties of the base thermoplastic resin, such as the impact strength and/or HDT of the composition. The compositions can be used in a variety of applications such as personal computers, notebook and portable computers, cell phone and other such communications equipment.Type: ApplicationFiled: May 19, 2009Publication date: November 26, 2009Applicant: SABIC Innovatives Plastics IP B.V.Inventors: Yanjun (Frank) Li, Jiru Meng, David Xiangping Zou
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Publication number: 20080234434Abstract: A method of making resin composition having excellent wear properties that includes 50 to 99 wt. % of a polycarbonate resin and from 1 to 50 wt. % of a polyolefin that has been modified with at least one functional group selected from a carboxyl, an acid anhydride, an epoxy groups or mixtures containing at least one of the foregoing functional groups, each based on the total combined weight of the resin composition, exclusive of any filler. The resin composition optionally contains an unmodified polyolefin and/or a bi-functional monomer. The resin composition can be molded into articles having improved wear characteristics. The process is a one-step process that improves the efficiency and/or yield of the resin composition as compared to prior-art two-step processes.Type: ApplicationFiled: March 20, 2007Publication date: September 25, 2008Inventors: Ye-Gang Lin, Donghai Sun, David Xiangping Zou
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Publication number: 20080139719Abstract: A thermoplastic composition that includes a base polymer, a fluoropolymer, and a fluoride scavenger having suitable fluoride levels such that use in the electronics industry is appropriate. An extrusion method may be used for making the thermoplastic composition. The compositions may then be used to form a molded article. The composition has lower fluoride levels as compared to thermoplastic compositions without the fluoride scavenger making it suitable for use in electronic applications, as well as medical or food or beverage applications where fluoride ions are a concern.Type: ApplicationFiled: December 11, 2006Publication date: June 12, 2008Inventors: Xin Huang, Tong Sun, Huagui Yang, David Xiangping Zou
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Publication number: 20080033083Abstract: A flame retardant thermoplastic composition having excellent physical properties that includes 30 to 90 wt. % of a polycarbonate resin; from 1 to 35 wt. % of an impact modifier; from 0.1 to 15 wt. % of a phosphorus-containing flame retardant, from 1 to 30 wt. % of metal fiber, and from 0.002 to 5 wt. % of a processing additive, each based on the total combined weight of the thermoplastic composition, exclusive of any filler. The processing additive permits flame retardant characteristics to be maintained despite lower levels of flame retardant while the lower levels of flame retardant permit the compositions, and molded samples of these compositions, to have higher HDT and/or impact strengths as compared to compositions having higher levels of flame retardants. A molded sample of the thermoplastic composition is capable of achieving UL94 V0 rating at a thickness of 1.5 mm (±10%). The compositions are useful in forming flame retardant articles having EMI shielding characteristics.Type: ApplicationFiled: December 13, 2006Publication date: February 7, 2008Inventors: Gang Li, Ye-Gang Lin, Hiroshi Miyake, David Xiangping Zou