GB1388944A - Production of shaped polyamide bodies - Google Patents
Production of shaped polyamide bodiesInfo
- Publication number
- GB1388944A GB1388944A GB1717672A GB1717672A GB1388944A GB 1388944 A GB1388944 A GB 1388944A GB 1717672 A GB1717672 A GB 1717672A GB 1717672 A GB1717672 A GB 1717672A GB 1388944 A GB1388944 A GB 1388944A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyamide
- din
- injection
- kgf
- april
- 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
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyamides (AREA)
Abstract
1388944 Injection moulding polyamides DYNAMIT NOBEL AG 13 April 1972 [17 April 1971] 17176/72 Heading B5A [Also in Division C3] A dimensionally stable amorphous polyamide body, the polyamide of which comprises recurring groups derived from terephthalic acid and from a C-alkyl substituted aliphatic diamine, is injection moulded by a screw type machine using a back pressure of 5 to 80 kgf/ cm.<SP>2</SP> and a cylinder temperature of 240‹ to 320‹ C. Injection is preferably by a reciprocating screw having a compression ratio from 2 : 1 to 3 : 1. The viscosity factor according to DIN 53727 of the polyamide is from 130 to 180 and is preferably lowered to between 90 and 170 during processing but may be raised. The elastic modulus of the body according to DIN 53457 is from 28,000 to 29,000 kgf/cm.<SP>2</SP> and the leakage current according to DIN 53480 is quality KA 3b. Examples are given of terephthalic acid derivatives, of C-methyl substituted aliphatic diamines, and of titanium dioxide and other pigments used in the polyamide (see Division C3). Also the physical properties of the polyamide and the moulding pressure and temperatures are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712118753 DE2118753C3 (en) | 1971-04-17 | Process for the production of molded articles from polyamides with improved tracking resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1388944A true GB1388944A (en) | 1975-03-26 |
Family
ID=5805034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1717672A Expired GB1388944A (en) | 1971-04-17 | 1972-04-13 | Production of shaped polyamide bodies |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5511505B1 (en) |
| AT (1) | AT329874B (en) |
| BE (1) | BE782044A (en) |
| CH (1) | CH572954A5 (en) |
| ES (1) | ES401794A1 (en) |
| FR (1) | FR2133792B1 (en) |
| GB (1) | GB1388944A (en) |
| IT (1) | IT952125B (en) |
| NL (1) | NL172927C (en) |
| SE (1) | SE395240B (en) |
-
1972
- 1972-03-06 IT IT4879172A patent/IT952125B/en active
- 1972-04-12 CH CH539072A patent/CH572954A5/xx not_active IP Right Cessation
- 1972-04-13 BE BE782044A patent/BE782044A/en unknown
- 1972-04-13 GB GB1717672A patent/GB1388944A/en not_active Expired
- 1972-04-14 FR FR7213315A patent/FR2133792B1/fr not_active Expired
- 1972-04-14 AT AT328372A patent/AT329874B/en not_active IP Right Cessation
- 1972-04-15 ES ES401794A patent/ES401794A1/en not_active Expired
- 1972-04-17 SE SE494572A patent/SE395240B/en unknown
- 1972-04-17 NL NL7205130A patent/NL172927C/en not_active IP Right Cessation
- 1972-04-17 JP JP3858972A patent/JPS5511505B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL172927B (en) | 1983-06-16 |
| AT329874B (en) | 1976-06-10 |
| JPS5511505B1 (en) | 1980-03-25 |
| SE395240B (en) | 1977-08-08 |
| CH572954A5 (en) | 1976-02-27 |
| FR2133792B1 (en) | 1977-04-01 |
| ES401794A1 (en) | 1975-03-01 |
| IT952125B (en) | 1973-07-20 |
| NL7205130A (en) | 1972-10-19 |
| DE2118753A1 (en) | 1972-10-26 |
| DE2118753B2 (en) | 1975-07-31 |
| ATA328372A (en) | 1975-08-15 |
| BE782044A (en) | 1972-07-31 |
| NL172927C (en) | 1983-11-16 |
| FR2133792A1 (en) | 1972-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |