Susan L Green

US Patent:

6372822, Apr 16, 2002

Filed:

Apr 13, 2000

Appl. No.:

09/549051

Inventors:

Bin Chung - Nashua NH
Susan W. Green - Boxboro MA
Ivan Z. Podobnik - Mason NH
Joseph Cianciolo - Methuen MA

Assignee:

Cabot Corporation - Boston MA

International Classification:

C08J 320

US Classification:

523351

Abstract:

Elastomer masterbatch is processed in a continuous compounder having multiple parallel elongate rotors axially oriented in an elongate processing chamber. Optionally, additional materials are compounded into the masterbatch, e. g. , additives, other elastomeric compositions, etc. Preferably, the masterbatch then is further processed in an open mill. Excellent control of Mooney Viscosity is achieved. In certain preferred embodiments, elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a coagulated mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end without need of adding acid or salt solution or other coagulation step. The coagulated elastomer and particulate filler composite is fed into the aforesaid continuous compounder for processing and control of its moisture level and Mooney Viscosity.

US Patent:

6929783, Aug 16, 2005

Filed:

Jan 18, 2002

Appl. No.:

10/051357

Inventors:

Bin Chung - Nashua NH, US
Susan W. Green - Boxboro MA, US
Ivan Z. Podobnik - Mason NH, US
Joseph Cianciolo - Methuen MA, US

Assignee:

Cabot Corporation - Boston MA

International Classification:

B01J010/00

US Classification:

422187, 422224, 422225, 422229, 422232, 422233, 422291, 422292, 524495

Abstract:

Elastomer masterbatch is processed in a continuous compounder having multiple parallel elongate rotors axially oriented in an elongate processing chamber. Optionally, additional materials are compounded into the masterbatch, e. g. , additives, other elastomeric compositions, etc. Preferably, the masterbatch then is further processed in an open mill. Excellent control of Mooney Viscosity is achieved. In certain preferred embodiments, elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a coagulated mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end without need of adding acid or salt solution or other coagulation step. The coagulated elastomer and particulate filler composite is fed into the aforesaid continuous compounder for processing and control of its moisture level and Mooney Viscosity.

US Patent:

7582689, Sep 1, 2009

Filed:

Aug 12, 2005

Appl. No.:

11/203568

Inventors:

Bin Chung - Nashua NH, US
Susan W. Green - Boxboro MA, US
Ivan Z. Podobnik - Mason NH, US
Joseph Cianciolo - Methuen MA, US

Assignee:

Cabot Corporation - Boston MA

International Classification:

C09B 67/00

US Classification:

523333, 422187, 422224, 422225, 523334, 523351, 524495

Abstract:

Elastomer masterbatch is processed in a continuous compounder having multiple parallel elongate rotors axially oriented in an elongate processing chamber. Optionally, additional materials are compounded into the masterbatch, e. g. , additives, other elastomeric compositions, etc. Preferably, the masterbatch then is further processed in an open mill. Excellent control of Mooney Viscosity is achieved. In certain preferred embodiments, elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a coagulated mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end without need of adding acid or salt solution or other coagulation step. The coagulated elastomer and particulate filler composite is fed into the aforesaid continuous compounder for processing and control of its moisture level and Mooney Viscosity.

US Patent:

RE42099, Feb 1, 2011

Filed:

Nov 24, 2009

Appl. No.:

12/592418

Inventors:

Bin Chung - Nashua NH, US
Susan W. Green - Boxboro MA, US
Ivan Z. Podobnik - Mason NH, US
Joseph Cianciolo - Methuen MA, US

Assignee:

Cabot Corporation - Boston MA

International Classification:

C09B 67/00

US Classification:

523333, 422187, 422224, 422225, 523334, 523351, 524495

Abstract:

Elastomer masterbatch is processed in a continuous compounder having multiple parallel elongate rotors axially oriented in an elongate processing chamber. Optionally, additional materials are compounded into the masterbatch, e. g. , additives, other elastomeric compositions, etc. Preferably, the masterbatch then is further processed in an open mill. Excellent control of Mooney Viscosity is achieved. In certain preferred embodiments, elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a coagulated mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end without need of adding acid or salt solution or other coagulation step. The coagulated elastomer and particulate filler composite is fed into the aforesaid continuous compounder for processing and control of its moisture level and Mooney Viscosity.