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公开(公告)号:DE69710856D1
公开(公告)日:2002-04-11
申请号:DE69710856
申请日:1997-12-02
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor: NEUBAUER ANTHONY CHARLES , SCAROLA LEONARD SEBASTIAN
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公开(公告)号:AU9521498A
公开(公告)日:1999-06-24
申请号:AU9521498
申请日:1998-12-03
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor: KHANIN DAVID , SCAROLA LEONARD SEBASTIAN
Abstract: A process for the devolatilization of a thermoplastic polymer containing gaseous impurities in an apparatus having a melting zone, a mixing zone, and a reduced pressure zone, comprising: (a) (i) adding a granular blowing agent directly or via a masterbatch to the polymer prior to the introduction of the polymer into the melting zone, said blowing agent being added in an amount of about 1 to about 4 percent by weight based on the weight of the polymer or (ii) adding a gaseous blowing agent to the mixing zone; (b) melting the polymer in the melting zone; (c) mixing the molten polymer and blowing agent in the mixing zone under sufficient pressure to maintain the blowing agent in the mixture; (d) at a temperature sufficient for decomposition or expansion, (i) decomposing the granular blowing agent in the mixing zone and/or in the reduced pressure zone or (ii) expanding the gaseous blowing agent in the reduced pressure zone wherein the blowing agent in its decomposed or expanded state develops froth cells in the molten polymer; (e) in the reduced pressure zone, reducing the pressure at the surface of the molten polymer in a sufficient amount to remove essentially all of the gaseous impurities; (f) optionally, repeating steps (c), (d), and (e) at least once; and (g) recovering the polymer in an essentially unfoamed state. e
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公开(公告)号:CA2155236C
公开(公告)日:1999-04-13
申请号:CA2155236
申请日:1995-08-02
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor: BERNIER ROBERT JOSEPH NOEL , BOYSEN ROBERT LORENZ , WILLIAMS GARY HARRY , BROWN ROBERT CECIL , SCAROLA LEONARD SEBASTIAN
IPC: B60C1/00 , A61K31/35 , A61K31/352 , A61K31/40 , A61K31/4025 , A61K31/415 , A61K31/425 , A61K31/44 , A61K31/443 , A61K31/4433 , A61K31/50 , A61K31/505 , A61K31/53 , A61P9/00 , B01J8/24 , B01J23/10 , C07D311/58 , C07D311/78 , C07D311/92 , C07D311/94 , C07D405/12 , C07D405/14 , C07D409/14 , C07D417/12 , C07D491/052 , C07D493/04 , C08F2/00 , C08F2/34 , C08F2/44 , C08F4/54 , C08F4/622 , C08F4/64 , C08F4/70 , C08F10/00 , C08F10/14 , C08F36/04 , C08F36/06 , C08F210/00 , C08F210/16 , C08F210/18 , C08K3/04 , C08K3/34
Abstract: A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one monomer present in said polymerization zone.
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公开(公告)号:DE69320100D1
公开(公告)日:1998-09-10
申请号:DE69320100
申请日:1993-05-19
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor: BOYSEN ROBERT LORENZ , MURE CLIFF ROBERT , SCAROLA LEONARD SEBASTIAN , RHEE AARON SEUNG-JOON
IPC: C08F2/44 , C08F2/34 , C08F210/18 , C08J3/12
Abstract: A resin particle having an inner core comprising a sticky polymer and an outer shell of an inert particulate material.
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公开(公告)号:ZA9710870B
公开(公告)日:1998-06-15
申请号:ZA9710870
申请日:1997-12-03
Applicant: UNION CARBIDE CHEM PLASTIC
Abstract: The present invention provides a process and apparatus for feeding powders such as fine, cohesive, or powdery particulate materials from a low pressure system to a high pressure system. There is provided in a preferred embodiment a process and apparatus of pressurizing and feeding carbon black fluff to a polymerization reactor, particularly a gas phase fluidized polymerization reactor to provide for a close-coupling of a carbon black reactor to a polymerization reactor.
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公开(公告)号:MX9702945A
公开(公告)日:1998-05-31
申请号:MX9702945
申请日:1997-04-23
Applicant: UNION CARBIDE CHEM PLASTIC , CORP
Inventor: BERNIER ROBERT JOSEPH NOEL , ITALIAANDER ERIC THOMAS , PAEGLIS ARNIS UVI , ROSENBLAT BENJAMIN ROMAN , SCAROLA LEONARD SEBASTIAN , ARDHENOU SEN
IPC: C08F210/16 , C08J03/20
Abstract: La presente invencion proporciona un proceso continuo para formar compuestos a partir de uno o varios polímeros y los artículos terminados elaborados con ellos. El proceso comprende la alimentacion continua de cuando menos un elastomero granular, opcionalmente, con uno o varios polímeros termoplásticos, que tienen tamaños de partículas promedio de aproximadamente 5mm o menos y, opcionalmente, con uno o varios aditivos, a una mezcladora continua, donde los componentes son masticados y fundidos en un compuesto y mediante el bombeo de dicho compuesto a través de un orificio o matriz.
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公开(公告)号:BR9505507A
公开(公告)日:1997-10-28
申请号:BR9505507
申请日:1995-11-23
Applicant: UNION CARBIDE CHEM PLASTIC
IPC: C08F2/00 , C08F2/34 , C08F8/00 , C08F10/02 , C08F210/16 , C08F297/08 , C08L23/00 , C08L23/04 , C08L23/06 , C08J5/18
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公开(公告)号:MX9605729A
公开(公告)日:1997-08-30
申请号:MX9605729
申请日:1996-11-21
Applicant: UNION CARBIDE CHEM PLASTIC , CORP
Inventor: BERNIER ROBERT JOSEPH NOEL , ITALIAANDER ERIC THOMAS , PAEGLIS ARNIS UVI , ROSENBLAT BEMJAMIN ROMAN , SCAROLA LEONARD SEBASTIAN , ARDHENOU SEN
IPC: B29C20060101 , C08J20060101 , C08K20060101 , C08J03/20
Abstract: La presente invencion proporciona un proceso continuo para formar compuestos a partir de uno o varios polímeros y artículos terminados elaborados con ellos. El proceso comprende la alimentacion continua de cuando menos un elastomero granular opcionalmente con uno o varios polímeros termoplásticos que tienen tamaños de partícula promedio de aproximadamente 5 mm o menos y opcionalmente con uno o varios aditivos a una mezcladora continua donde los componentes son masticados y fundidos en un compuesto y mediante el bombeo de dicho compuesto a través de un orificio o matriz.
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公开(公告)号:MX9700805A
公开(公告)日:1997-05-31
申请号:MX9700805
申请日:1995-08-02
Applicant: UNION CARBIDE CHEM PLASTIC , CORP
Inventor: BERNIER ROBERT JOSEPH , BOYSEN ROBERT LORENZ , BROWN ROBERT CECIL , GOODE MARK GREGORY , MOORHOUSE JOHN HENRY , OLSEN ROBERT DARRELL , SCAROLA LEONARD SEBASTIAN , SPRIGG THOMAS EDWARD , WANG DUAN-FAN
IPC: A61K31/35 , A61K31/352 , A61K31/40 , B60C1/00 , A61K31/4025 , A61K31/415 , A61K31/425 , A61K31/44 , A61K31/443 , A61K31/4433 , A61K31/50 , A61K31/505 , A61K31/53 , A61P9/00 , B01J8/24 , B01J23/10 , C07D311/58 , C07D311/78 , C07D311/92 , C07D311/94 , C07D405/12 , C07D405/14 , C07D409/14 , C07D417/12 , C07D491/052 , C07D493/04 , C08F2/00 , C08F2/34 , C08F2/44 , C08F4/54 , C08F4/622 , C08F4/64 , C08F4/70 , C08F10/00 , C08F10/14 , C08F36/04 , C08F36/06 , C08F210/00 , C08F210/16 , C08F210/18 , C08K3/04 , C08K3/34 , C08F02/34
Abstract: Un proceso para producir polímero en un reactor de fase gaseosa, introduciendo una corriente de monomero y gas dentro de una zona de polimerizacion, mientras que se proporciona por lo menos un componente líquido en la zona de polimerizacion.
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公开(公告)号:FI970457A
公开(公告)日:1997-04-18
申请号:FI970457
申请日:1997-02-03
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor: BERNIER ROBERT JOSEPH NOEL , BOYSEN ROBERT LORENZ , BROWN ROBERT CECIL , GOODE MARK GREGORY , MOORHOUSE JOHN HENRY , OLSEN ROBERT DARRELL , SCAROLA LEONARD SEBASTIAN , SPRIGG THOMAS EDWARD , WANG DUAN-FAN , WILLIAMS GARY HARRY
IPC: A61K31/35 , A61K31/352 , B60C1/00 , A61K31/40 , A61K31/4025 , A61K31/415 , A61K31/425 , A61K31/44 , A61K31/443 , A61K31/4433 , A61K31/50 , A61K31/505 , A61K31/53 , A61P9/00 , B01J8/24 , B01J23/10 , C07D311/58 , C07D311/78 , C07D311/92 , C07D311/94 , C07D405/12 , C07D405/14 , C07D409/14 , C07D417/12 , C07D491/052 , C07D493/04 , C08F2/00 , C08F2/34 , C08F2/44 , C08F4/54 , C08F4/622 , C08F4/64 , C08F4/70 , C08F10/00 , C08F10/14 , C08F36/04 , C08F36/06 , C08F210/00 , C08F210/16 , C08F210/18 , C08K3/04 , C08K3/34
Abstract: Polymers are produced in a stirred bed or gas fluidised bed polymerisation zone of growing polymer particles by (1) introducing a stream of monomer(s), and opt. inert gas(s) or liq(s)., into the polymerisation zone; (2) continuously or intermittently introducing a catalyst; (3) continuously or intermittently withdrawing polymer; and (4) continuously withdrawing unreacted gases, compressing and cooling the gases while maintaining the temp. in the polymerisation zone below the dew pt. of at least one monomer; with the proviso that if there is only one monomer present in the feed stream, an inert gas is also present.
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