GB1146734A - Production of polyamide moldings - Google Patents
Production of polyamide moldingsInfo
- Publication number
- GB1146734A GB1146734A GB2716466A GB2716466A GB1146734A GB 1146734 A GB1146734 A GB 1146734A GB 2716466 A GB2716466 A GB 2716466A GB 2716466 A GB2716466 A GB 2716466A GB 1146734 A GB1146734 A GB 1146734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- lactam
- length
- mixture
- moulding
- 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
-
- 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
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
-
- 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
- B29C39/24—Feeding the material into the mould
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/90—Measuring, controlling or regulating
-
- 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
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides 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
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
1,146,734. Homogeneous polyamide mouldings. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 June, 1966 [18 June, 1965], No. 27164/66. Heading B5A. Homogeneous polyamide mouldings having a ratio of length: smallest diameter or width of >3: 1 are produced by activated anionic polymerization in a mould of a lactam having 6-12 ring carbon atoms, the molten polymerization mixture containing catalyst e.g. alkali metal lactamate, and activator, being introduced into the mould from above so that the rate of increase of the sum of the length of the moulding and the length of polymerization mixture in the mould is 20-400 cm/min., preferably 30-300. The mixture may be fed into the mould so that the level rises at a rate of 20-100 cm/min., or so that the level is kept constant by withdrawing the moulding from the bottom of the mould. The mixture may be prepared by mixing a portion of the lactam having the anionic catalyst dissolved therein with the remainder of the lactam having the activator dissolved therein.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0082449 | 1965-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1146734A true GB1146734A (en) | 1969-03-26 |
Family
ID=6981505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2716466A Expired GB1146734A (en) | 1965-06-18 | 1966-06-17 | Production of polyamide moldings |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT268670B (en) |
BE (1) | BE682330A (en) |
CH (1) | CH467299A (en) |
DE (1) | DE1570276C3 (en) |
GB (1) | GB1146734A (en) |
-
1965
- 1965-06-18 DE DE19651570276 patent/DE1570276C3/en not_active Expired
-
1966
- 1966-06-03 CH CH805366A patent/CH467299A/en unknown
- 1966-06-09 BE BE682330D patent/BE682330A/xx unknown
- 1966-06-17 GB GB2716466A patent/GB1146734A/en not_active Expired
- 1966-06-17 AT AT581566A patent/AT268670B/en active
Also Published As
Publication number | Publication date |
---|---|
BE682330A (en) | 1966-12-09 |
DE1570276B2 (en) | 1973-02-22 |
DE1570276A1 (en) | 1970-02-12 |
AT268670B (en) | 1969-02-25 |
DE1570276C3 (en) | 1973-10-04 |
CH467299A (en) | 1969-01-15 |
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