GB1313119A - Continuous bulk polymerisation process - Google Patents
Continuous bulk polymerisation processInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4220031A1 (en) * | 1992-06-19 | 1993-12-23 | Jun Alexander Faller | Device for making bars |
-
1969
- 1969-09-13 DE DE19691946527 patent/DE1946527B2/en active Pending
-
1970
- 1970-05-06 NL NL7006618A patent/NL7006618A/xx unknown
- 1970-05-06 IT IT5048670A patent/IT940242B/en active
- 1970-05-08 FR FR7016787A patent/FR2048408A5/fr not_active Expired
- 1970-06-04 GB GB2698770A patent/GB1313119A/en not_active Expired
- 1970-09-11 SE SE1242270A patent/SE369312B/xx unknown
- 1970-09-14 JP JP8043970A patent/JPS4926510B1/ja active Pending
Cited By (2)
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 |