GB1095706A - Improvements in and relating to the production ofcaprolactam polymer for use in filaments - Google Patents
Improvements in and relating to the production ofcaprolactam polymer for use in filamentsInfo
- Publication number
- GB1095706A GB1095706A GB51882/64A GB5188264A GB1095706A GB 1095706 A GB1095706 A GB 1095706A GB 51882/64 A GB51882/64 A GB 51882/64A GB 5188264 A GB5188264 A GB 5188264A GB 1095706 A GB1095706 A GB 1095706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- water
- melt
- granules
- formic acid
- 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
- 229920000642 polymer Polymers 0.000 title abstract 5
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract 6
- 239000008187 granular material Substances 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 abstract 3
- 235000019253 formic acid Nutrition 0.000 abstract 3
- 230000003750 conditioning effect Effects 0.000 abstract 2
- 229920002292 Nylon 6 Polymers 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000001408 amides Chemical class 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000002074 melt spinning Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- 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
- C08G69/46—Post-polymerisation treatment
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S528/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S528/901—Room temperature curable silicon-containing polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Polyamides (AREA)
Abstract
A process for conditioning polycaprolactam to be melt-spun into filaments of homogeneous melt-viscosity comprises drying water-washed polymer granules having a formic acid relative viscosity of 40 to 80 with a standard deviation not above 0.6 measured at 10% concentration in 90% formic acid at 25 DEG C., and a water-extractible content not above 5% by weight, to an average water content in the range 0.035 to 0.115% by wt. and then conditioning the dried granules by continuous contact for at least 2 days at a constant temperature between 30 DEG and 120 DEG C. with non-reactive gas in which the partial pressure of water vapour is between 0.001 and 10 mm. Hg until the standard deviation of water content of the dried granules is not above 0.003% by wt. of the granules. The water content W to which the polymer is brought before melt spinning is preferably related to the temperature T DEG absolute at which the polymer is melt spun by the equations <FORM:1095706/C3/1> where <FORM:1095706/C3/2> and y is the end group concentration given by V = - 285.209+2164.33 y + 11.7188/y. V is the formic acid relative viscosity and a is the concentration of any monobasic acid viscosity stabilizer and C that of amide links in the polymer, both in g equivalents per kilogram.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US332121A US3280079A (en) | 1963-12-20 | 1963-12-20 | Production of polycaproamide filaments of uniform water content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1095706A true GB1095706A (en) | 1967-12-20 |
Family
ID=23296794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51882/64A Expired GB1095706A (en) | 1963-12-20 | 1964-12-21 | Improvements in and relating to the production ofcaprolactam polymer for use in filaments |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3280079A (en) |
| DE (1) | DE1494545A1 (en) |
| GB (1) | GB1095706A (en) |
| NL (1) | NL6414910A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591468A (en) * | 1982-03-28 | 1986-05-27 | Imperial Chemical Industries Plc | Process for remelting polyamides |
| CN108602227A (en) * | 2015-12-01 | 2018-09-28 | 奥升德功能材料运营有限责任公司 | High molecular weight polyamides and copolyamides with uniform RV and low gel content |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788503A (en) * | 1969-12-30 | 1974-01-29 | Kohjin Co | Method for producing biaxially molecule-oriented poly-{68 -caproamide resin film |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2731081A (en) * | 1953-04-13 | 1956-01-17 | Ind Rayon Corp | Method for the removal of monomers, etc. from molten polymers |
| NL181713B (en) * | 1953-07-25 | Elf Aquitaine | METHOD FOR THE CONTROL OF A COLUMN OF ATMOSPHERIC DISTILLATION OF CRUDE OIL. | |
| US3017391A (en) * | 1956-12-13 | 1962-01-16 | Monsanto Chemicals | Preparation of polycaprolactam using n-acyl activators |
| US3109835A (en) * | 1958-10-08 | 1963-11-05 | Allied Chem | Process for producing ultrahigh viscosity polycaprolactam |
| NL252288A (en) * | 1959-06-16 | |||
| NL134637C (en) * | 1961-06-21 |
-
1963
- 1963-12-20 US US332121A patent/US3280079A/en not_active Expired - Lifetime
-
1964
- 1964-12-18 DE DE19641494545 patent/DE1494545A1/en active Pending
- 1964-12-21 GB GB51882/64A patent/GB1095706A/en not_active Expired
- 1964-12-21 NL NL6414910A patent/NL6414910A/xx unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591468A (en) * | 1982-03-28 | 1986-05-27 | Imperial Chemical Industries Plc | Process for remelting polyamides |
| CN108602227A (en) * | 2015-12-01 | 2018-09-28 | 奥升德功能材料运营有限责任公司 | High molecular weight polyamides and copolyamides with uniform RV and low gel content |
| US20180340042A1 (en) * | 2015-12-01 | 2018-11-29 | Ascend Performance Materials Operations Llc | High Molecular Weight Polyamides and CoPolyamides with Uniform RV and Low Gel Content |
| EP3383618A4 (en) * | 2015-12-01 | 2019-09-04 | Ascend Performance Materials Operations LLC | POLYAMIDES OF HIGH MOLECULAR WEIGHT AND COPOLYAMIDES WITH UNIFORM AND LOW GEL FREE VELOCITIES |
| CN113321801A (en) * | 2015-12-01 | 2021-08-31 | 奥升德功能材料运营有限责任公司 | High molecular weight polyamides and copolyamides having uniform RV and low gel content and process for their production |
| CN113321801B (en) * | 2015-12-01 | 2024-02-27 | 奥升德功能材料运营有限责任公司 | High molecular weight polyamides and copolyamides with uniform RV and low gel content and methods of making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| US3280079A (en) | 1966-10-18 |
| NL6414910A (en) | 1965-06-21 |
| DE1494545A1 (en) | 1969-05-22 |
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