GB1047628A - Method and apparatus for preparing polycarbonamides - Google Patents

Method and apparatus for preparing polycarbonamides

Info

Publication number
GB1047628A
GB1047628A GB27971/63A GB2797163A GB1047628A GB 1047628 A GB1047628 A GB 1047628A GB 27971/63 A GB27971/63 A GB 27971/63A GB 2797163 A GB2797163 A GB 2797163A GB 1047628 A GB1047628 A GB 1047628A
Authority
GB
United Kingdom
Prior art keywords
screw
finisher
mass
flights
pitch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27971/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Co
Original Assignee
Monsanto Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Monsanto Co filed Critical Monsanto Co
Publication of GB1047628A publication Critical patent/GB1047628A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/04—Preparatory processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/182—Details relating to the spatial orientation of the reactor horizontal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polymerisation Methods In General (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Polyamides (AREA)

Abstract

1,047,628. Screw pumps. MONSANTO CO. July 15, 1963 [July 17, 1962], No. 27971/63. Heading F1C. [Also in Division B1] An apparatus for producing polymers comprises a means for initiating a polymerization reaction and means for transferring a partially polymerized viscous mass to a finisher wherein said finisher comprises a vessel having an inlet and an outlet and a screw device within the vessel, the pitch between flights of the screw decreasing along the axis of the screw. The variation in pitch between successive flights is preferably according to the equation p x d= constant, where p is the pitch between adjacent flights and d is the density of the reaction mass between adjacent flights; thus enabling a constant level of reaction mass to be maintained between the inlet and outlet. A partially polymerized mass is fed through 21 to screw pump 44 of finisher 23 driven by motor 25. A heating medium e.g. Dowthom (RTM) or steam, is used in jacket 36 and the gaseous by products of the polymerization let out of the finisher. A pump 42 is provided for discharging the polymerized mass through 24.
GB27971/63A 1962-07-17 1963-07-15 Method and apparatus for preparing polycarbonamides Expired GB1047628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21046362A 1962-07-17 1962-07-17

Publications (1)

Publication Number Publication Date
GB1047628A true GB1047628A (en) 1966-11-09

Family

ID=22783000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27971/63A Expired GB1047628A (en) 1962-07-17 1963-07-15 Method and apparatus for preparing polycarbonamides

Country Status (7)

Country Link
BE (1) BE635059A (en)
CH (1) CH419577A (en)
DE (1) DE1520317A1 (en)
DK (1) DK111251B (en)
GB (1) GB1047628A (en)
NL (1) NL295438A (en)
SE (1) SE304859B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113101871A (en) * 2021-03-22 2021-07-13 旗众科技有限公司 PBS biodegradable plastic production device and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113101871A (en) * 2021-03-22 2021-07-13 旗众科技有限公司 PBS biodegradable plastic production device and control method thereof

Also Published As

Publication number Publication date
CH419577A (en) 1966-08-31
DE1520317A1 (en) 1969-01-16
BE635059A (en)
NL295438A (en)
SE304859B (en) 1968-10-07
DK111251B (en) 1968-07-08

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