GB1313119A - Continuous bulk polymerisation process - Google Patents

Continuous bulk polymerisation process

Info

Publication number
GB1313119A
GB1313119A GB2698770A GB2698770A GB1313119A GB 1313119 A GB1313119 A GB 1313119A GB 2698770 A GB2698770 A GB 2698770A GB 2698770 A GB2698770 A GB 2698770A GB 1313119 A GB1313119 A GB 1313119A
Authority
GB
United Kingdom
Prior art keywords
sheath
polymerization
webs
edges
bent upwards
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
GB2698770A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1313119A publication Critical patent/GB1313119A/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
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
    • 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
    • B01J16/00—Chemical processes in general for reacting liquids with non- particulate solids, e.g. sheet material; Apparatus specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/38—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2059/00—Use of polyacetals, e.g. POM, i.e. polyoxymethylene or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polymerisation Methods In General (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Polyethers (AREA)

Abstract

1313119 Continuous bulk polymerization apparatus DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 4 June 1970 [13 Sept 1969] 26987/70 Heading B1X [Also in Division C3] An apparatus for the bulk polymerization of monomers such as trioxan comprises (a) means for forming one or two webs of flexible material into a continuously moving sheath, (b) feed means for introducing a polymerization mixture into the sheath, (c) a zone capable of being heated to the polymerization temperature and means for guiding the sheath therethrough, and, optionally, (d) means for discharging the polymer formed from the sheath, in which the forming and guiding means are adapted to form either (i) a single web into a slit tubular structure with parallel edges (e.g. as shown in Fig. Ic), the edges of the slit being bent upwards, or (ii) two webs into two troughs inserted one inside the other, the edges of which are brought together and bent upwards (e.g. as shown in Fig. 1a). Various suitable arrangements are described, generally in which the polymerization is carried out by passing the formed sheath horizontally through a liquid polymerization bath, suitably followed by a cooling bath. In Examples the webs are formed from polypropylene or glass-fibre reinforced polytetrafluoroethylene.
GB2698770A 1969-09-13 1970-06-04 Continuous bulk polymerisation process Expired GB1313119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691946527 DE1946527B2 (en) 1969-09-13 1969-09-13 PROCESS FOR THE PREPARATION OF OXYMETHYLENE HOMO- OR OXYMETHYLENE COPOLYMERISATES

Publications (1)

Publication Number Publication Date
GB1313119A true GB1313119A (en) 1973-04-11

Family

ID=5745453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2698770A Expired GB1313119A (en) 1969-09-13 1970-06-04 Continuous bulk polymerisation process

Country Status (7)

Country Link
JP (1) JPS4926510B1 (en)
DE (1) DE1946527B2 (en)
FR (1) FR2048408A5 (en)
GB (1) GB1313119A (en)
IT (1) IT940242B (en)
NL (1) NL7006618A (en)
SE (1) SE369312B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004060926A1 (en) * 2002-12-17 2004-07-22 Baker Hughes Incorporated Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220031A1 (en) * 1992-06-19 1993-12-23 Jun Alexander Faller Device for making bars

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004060926A1 (en) * 2002-12-17 2004-07-22 Baker Hughes Incorporated Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents
US7119132B2 (en) 2002-12-17 2006-10-10 Baker Hughes Incorporated Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents

Also Published As

Publication number Publication date
JPS4926510B1 (en) 1974-07-09
IT940242B (en) 1973-02-10
SE369312B (en) 1974-08-19
NL7006618A (en) 1971-03-16
DE1946527A1 (en) 1971-03-25
FR2048408A5 (en) 1971-03-19
DE1946527B2 (en) 1972-08-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees