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公开(公告)号：US20210324128A1
公开(公告)日：2021-10-21
申请号：US17231242
申请日：2021-04-15
Applicant: FINA TECHNOLOGY, INC.
Inventor： Carlos de Anda , Giovanni Trimino , Bradley Stiles , Jose Sosa
IPC: C08F279/02
Abstract: A process for producing high impact polystyrene comprising introducing to a reactor a partially-polymerized mixture comprising at least one vinyl aromatic monomer, an elastomer and reacted vinyl aromatic monomer wherein the partially-polymerized mixture has not undergone phase inversion; polymerizing the partially-polymerized mixture in the reactor to the phase inversion point to form a phase-inverted mixture; recovering a portion of the phase-inverted mixture from the reactor wherein the phase-inverted mixture comprises high impact polystyrene; and introducing another portion of the phase-inverted mixture to another reactor.
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公开(公告)号：US20180162961A1
公开(公告)日：2018-06-14
申请号：US15835203
申请日：2017-12-07
Applicant: Fina Technology, Inc.
Inventor： Carlos De Anda , Giovanni Trimino , Brad Stiles
Abstract: A method including operating a high impact polystyrene (HIPS) reaction system having a devolatilizer downstream of a polymerization reactor, and from which a HIPS product is obtained, and injecting an antioxidant into the HIPS reaction system prior to the devolatilizer, with the antioxidant being one or more aromatic antioxidants. A HIPS product produced by operating a HIPS reaction system to produce a HIPS product, with the HIPS reaction system including a devolatilizer downstream of a polymerization reactor, and including injecting an antioxidant into the HIPS reaction system prior to the devolatilizer, with the antioxidant being comprising one or more aromatic antioxidants. The antioxidant may comprise at least one thiol group, at least one cresol group, or both. A system for producing the HIPS product is also provided.
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公开(公告)号：US09809699B2
公开(公告)日：2017-11-07
申请号：US14927528
申请日：2015-10-30
Applicant: FINA TECHNOLOGY, INC.
Inventor： Giovanni Trimino , Carlos DeAnda , David W. Knoeppel
IPC: C08L25/06 , C08K5/524 , C08L51/00 , C08L51/04 , C08K5/105 , C08K5/17 , C08K5/20 , C08K5/3492 , C08K5/353
CPC classification number: C08K5/524 , C08K5/105 , C08K5/17 , C08K5/20 , C08K5/3492 , C08K5/353 , C08L25/06 , C08L51/003 , C08L51/04
Abstract: High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system.
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公开(公告)号：US10696755B2
公开(公告)日：2020-06-30
申请号：US15835203
申请日：2017-12-07
Applicant: Fina Technology, Inc.
Inventor： Carlos De Anda , Giovanni Trimino , Brad Stiles
Abstract: A method including operating a high impact polystyrene (HIPS) reaction system having a devolatilizer downstream of a polymerization reactor, and from which a HIPS product is obtained, and injecting an antioxidant into the HIPS reaction system prior to the devolatilizer, with the antioxidant being one or more aromatic antioxidants. A HIPS product produced by operating a HIPS reaction system to produce a HIPS product, with the HIPS reaction system including a devolatilizer downstream of a polymerization reactor, and including injecting an antioxidant into the HIPS reaction system prior to the devolatilizer, with the antioxidant being comprising one or more aromatic antioxidants. The antioxidant may comprise at least one thiol group, at least one cresol group, or both. A system for producing the HIPS product is also provided.
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Patent Agency Ranking
公开(公告)号：US20180030244A1
公开(公告)日：2018-02-01
申请号：US15724705
申请日：2017-10-04
Applicant: Fina Technology, Inc.
Inventor： Giovanni Trimino , Carlos DeAnda , David W. Knoeppel
IPC: C08K5/524 , C08L25/06 , C08K5/17 , C08K5/105 , C08L51/00 , C08L51/04 , C08K5/353 , C08K5/3492 , C08K5/20
Abstract: High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system.
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6.发明公开公开(公告)号：US20240002570A1
公开(公告)日：2024-01-04
申请号：US18470260
申请日：2023-09-19
Applicant: Fina Technology, Inc.
Inventor： Carlos de Anda , Giovanni Trimino , Bradley Stiles , Jose Sosa
IPC: C08F279/02
CPC classification number: C08F279/02
Abstract: A high impact polystyrene reactor system includes a first continuously stirred tank reactor. The first continuously stirred tank reactor includes an inlet configured to receive (i) at least one vinyl aromatic monomer, (ii) an elastomer, and (iii) a free radical initiator; and an outlet configured to convey a first reactor effluent. In addition, the high impact polystyrene reactor system includes a second continuously stirred tank reactor. The second continuously stirred tank reactor includes an inlet in fluid communication with the first continuously stirred tank reactor outlet and configured to receive (i) a portion of the first reactor effluent from the first continuously stirred tank reactor, (ii) at least one vinyl aromatic monomer, (iii) an elastomer, and (iv) a free radical initiator; and an outlet configured to convey a portion of a second reactor effluent comprising high impact polystyrene. Further, the high impact polystyrene reactor system includes a conduit for establishing a recirculation stream between the second reactor and the first reactor. The recirculation stream comprises another portion of the second reactor effluent.
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公开(公告)号：US11795259B2
公开(公告)日：2023-10-24
申请号：US17231242
申请日：2021-04-15
Applicant: FINA TECHNOLOGY, INC.
Inventor： Carlos de Anda , Giovanni Trimino , Bradley Stiles , Jose Sosa
IPC: C08F279/02
CPC classification number: C08F279/02
Abstract: A process for producing high impact polystyrene comprising introducing to a reactor a partially-polymerized mixture comprising at least one vinyl aromatic monomer, an elastomer and reacted vinyl aromatic monomer wherein the partially-polymerized mixture has not undergone phase inversion; polymerizing the partially-polymerized mixture in the reactor to the phase inversion point to form a phase-inverted mixture; recovering a portion of the phase-inverted mixture from the reactor wherein the phase-inverted mixture comprises high impact polystyrene; and introducing another portion of the phase-inverted mixture to another reactor.
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公开(公告)号：US10550245B2
公开(公告)日：2020-02-04
申请号：US15724705
申请日：2017-10-04
Applicant: Fina Technology, Inc.
Inventor： Giovanni Trimino , Carlos DeAnda , David W Knoeppel
IPC: C08K5/524 , C08L25/06 , C08L51/00 , C08L51/04 , C08K5/105 , C08K5/17 , C08K5/20 , C08K5/3492 , C08K5/353
Abstract: High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system.
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公开(公告)号：US20170121501A1
公开(公告)日：2017-05-04
申请号：US14927528
申请日：2015-10-30
Applicant: FINA TECHNOLOGY, INC.
Inventor： Giovanni Trimino , Carlos DeAnda , David W. Knoeppel
CPC classification number: C08K5/524 , C08K5/105 , C08K5/17 , C08K5/20 , C08K5/3492 , C08K5/353 , C08L25/06 , C08L51/003 , C08L51/04
Abstract: High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system.
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