IE39328B1 - Metl spinning of refractory polymers - Google Patents
Metl spinning of refractory polymersInfo
- Publication number
- IE39328B1 IE39328B1 IE217/74A IE21774A IE39328B1 IE 39328 B1 IE39328 B1 IE 39328B1 IE 217/74 A IE217/74 A IE 217/74A IE 21774 A IE21774 A IE 21774A IE 39328 B1 IE39328 B1 IE 39328B1
- Authority
- IE
- Ireland
- Prior art keywords
- melt
- temperature
- assistant
- polymer
- refractory
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- 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
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- 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
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
1452400 Melt spinning refractory polymers AMERICAN CYANAMID CO 22 Jan 1974 [5 Feb 1973 2 March 1973 23 March 1973 10 April 1973 5 July 1973] 02985/74 Heading B5B Shaped articles including filaments and films, are prepared by extruding a single phase fusion melt of a refractory polymer esp. acrylonitrile, but also other high melting point polymers, and a melt assistant i.e. a substance which is capable, when used under pressure sufficient to prevent boiling at temperatures above its atmospheric boiling point, of reducing the melting point of the refractory polymer to a temperature below the degradation range of the polymer, other than normal solvents for the polymer, at a temperature Tf which is above the single phase melt melting point temperature M and also above the boiling point at atmospheric pressure of said melt assistant through a spinnerette directly into a pressurized solidification zone wherein the following conditions obtain (1) there is a partial pressure of melt assistant such that the composition profile across the crosssection of the nascent extrudate so produced remains relatively flat: (2) the concentration of melt assistant retained in said nascent extrudate remains at a value at least 70% of the concentration of melt assistant in said single phase fusion melt, and (3) the temperature of the nascent extrudate is below said temperature Tf but not lower than 20‹ C. below said temperature M. Preferred melt assistants are 1-4C-alkanols, acetonitrile, formic or acetic acids, water or a dilute solution of an inorganic salt in water, the solution being too dilute to act as a solvent for acrylonitrile. Thus a blended mixture of polymer and melt assistant is extruded through a spinnerette 12 into a pressurized chamber 13 and the filaments 21 are drawn under tension by a rotary godet or thread advancing rolls 22 and then wound up on yarn package 30 or relaxed in a steam chamber 33 prior to wind up.
[GB1452400A]
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32947973A | 1973-02-05 | 1973-02-05 | |
| US33750673A | 1973-03-02 | 1973-03-02 | |
| US34446373A | 1973-03-23 | 1973-03-23 | |
| US34987773A | 1973-04-10 | 1973-04-10 | |
| US37677873A | 1973-07-05 | 1973-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE39328L IE39328L (en) | 1974-08-05 |
| IE39328B1 true IE39328B1 (en) | 1978-09-13 |
Family
ID=27541094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE217/74A IE39328B1 (en) | 1973-02-05 | 1974-02-05 | Metl spinning of refractory polymers |
Country Status (23)
| Country | Link |
|---|---|
| JP (1) | JPS5747283B2 (en) |
| AR (1) | AR203097A1 (en) |
| BR (1) | BR7400787D0 (en) |
| CA (1) | CA1052064A (en) |
| CH (1) | CH577038A5 (en) |
| DD (1) | DD111411A5 (en) |
| DE (1) | DE2403947C2 (en) |
| DK (1) | DK147767C (en) |
| FI (1) | FI57792C (en) |
| FR (1) | FR2216372B1 (en) |
| GB (1) | GB1452400A (en) |
| HK (1) | HK53477A (en) |
| IE (1) | IE39328B1 (en) |
| IL (1) | IL43990A (en) |
| IN (1) | IN141349B (en) |
| IT (1) | IT1002836B (en) |
| LU (1) | LU69307A1 (en) |
| NL (1) | NL186972C (en) |
| NO (1) | NO740055L (en) |
| PH (1) | PH12950A (en) |
| RO (1) | RO85291B (en) |
| TR (1) | TR17984A (en) |
| YU (1) | YU36393B (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4205039A (en) * | 1977-11-17 | 1980-05-27 | American Cyanamid Company | Process for melt-spinning acrylonitrile polymer fiber |
| US4301107A (en) * | 1978-08-30 | 1981-11-17 | American Cyanamid Company | Melt-spinning a plurality of acrylonitrile polymer fibers |
| US4220617A (en) * | 1978-08-30 | 1980-09-02 | American Cyanamid Company | Process for melt-spinning acrylonitrile polymer fiber |
| US4219523A (en) * | 1978-08-30 | 1980-08-26 | American Cyanamid Company | Melt-spinning acrylonitrile polymer fiber from low molecular weight polymers |
| US4220616A (en) * | 1978-08-30 | 1980-09-02 | American Cyanamid Company | Melt-spinning acrylonitrile polymer fiber using spinnerette of high orifice density |
| DE2963480D1 (en) * | 1978-08-30 | 1982-09-30 | American Cyanamid Co | Process for melt spinning acrylonitrile polymer fibres |
| US4238442A (en) * | 1978-12-29 | 1980-12-09 | E. I. Du Pont De Nemours And Company | Process for melt spinning acrylonitrile polymer hydrates |
| US4283365A (en) * | 1979-02-21 | 1981-08-11 | American Cyanamid Company | Process for melt-spinning acrylonitrile polymer fiber using vertically disposed compression zone |
| EP0014803A1 (en) * | 1979-02-21 | 1980-09-03 | American Cyanamid Company | Process for preparing acrylonitrile polymer fiber of hollow or open structure |
| US4271056A (en) * | 1979-09-17 | 1981-06-02 | American Cyanamid Company | Hydrophilic acrylonitrile polymers for melt-spinning |
| DE3115281A1 (en) * | 1980-04-21 | 1982-04-08 | American Cyanamid Co., Wayne, N.J. | METHOD FOR PRODUCING FIBERS |
| JPS5915480U (en) * | 1982-07-21 | 1984-01-30 | 株式会社安西製作所 | Chute for color sorter |
| JPS60199909A (en) * | 1984-03-22 | 1985-10-09 | Toray Ind Inc | Spinning device in atmosphere under pressure |
| JPS6183305A (en) * | 1984-09-25 | 1986-04-26 | Mitsui Petrochem Ind Ltd | Extremely thin yarn bundle and its production |
| DE3729062A1 (en) * | 1987-08-31 | 1989-03-09 | Hoechst Ag | METHOD FOR PRODUCING PREPARATION-FREE STRETCHED FIBERS |
| US4935180A (en) * | 1988-08-25 | 1990-06-19 | Basf Aktiengesellschaft | Formation of melt-spun acrylic fibers possessing a highly uniform internal structure which are particularly suited for thermal conversion to quality carbon fibers |
| US4921656A (en) * | 1988-08-25 | 1990-05-01 | Basf Aktiengesellschaft | Formation of melt-spun acrylic fibers which are particularly suited for thermal conversion to high strength carbon fibers |
| US5318417A (en) * | 1988-11-10 | 1994-06-07 | Kopp Clinton V | Extrusion head for forming polymeric hollow fiber |
| JPH0389981A (en) * | 1989-08-31 | 1991-04-15 | Kinki Kogyo Kk | Apparatus for sorting cullet |
| JPH0416273A (en) * | 1990-05-08 | 1992-01-21 | Takumi Kaneshige | Apparatus for sorting cullet by color |
| JP3343897B2 (en) * | 1995-01-09 | 2002-11-11 | 日本エクスラン工業株式会社 | Method for producing improved acrylonitrile polymer homogeneous phase melt |
| WO2017194103A1 (en) | 2016-05-11 | 2017-11-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for producing a multifilament yarn and multifilament yarn |
| CN112226829B (en) * | 2019-07-15 | 2022-04-05 | 中国石油化工股份有限公司 | Preparation method of high-strength polyacrylonitrile precursor |
| CN117802595B (en) * | 2024-02-29 | 2024-05-28 | 北京蓝晶微生物科技有限公司 | Polyhydroxyalkanoate monofilament and continuous preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL41606C (en) * | 1934-12-08 | |||
| GB555569A (en) * | 1940-04-26 | |||
| US2404713A (en) * | 1943-06-23 | 1946-07-23 | Du Pont | Method for preparing polymeric solutions |
| US2585444A (en) * | 1948-07-29 | 1952-02-12 | Du Pont | Preparation of shaped articles from acrylonitrile polymers |
| US2648649A (en) * | 1951-05-28 | 1953-08-11 | Dow Chemical Co | Acrylonitrile polymers plasticized with aqueous inroganic salt solutions |
| US2648648A (en) * | 1951-05-28 | 1953-08-11 | Dow Chemical Co | High acrylonitrile polymer solutions |
| BE790107A (en) * | 1971-10-14 | 1973-04-13 | Du Pont | COMPOSITIONS OF MELTED ACRYLONITRILE POLYMERS, PROCESS FOR THEIR PREPARATION, AND FILAMENTS AND FILAMENTS PRODUCED THEREOF |
-
1974
- 1974-01-10 IL IL43990A patent/IL43990A/en unknown
- 1974-01-22 GB GB298574A patent/GB1452400A/en not_active Expired
- 1974-01-28 DE DE2403947A patent/DE2403947C2/en not_active Expired - Lifetime
- 1974-01-29 AR AR252108A patent/AR203097A1/en active
- 1974-01-29 NO NO740055A patent/NO740055L/en unknown
- 1974-01-31 PH PH15464A patent/PH12950A/en unknown
- 1974-01-31 CA CA191,400A patent/CA1052064A/en not_active Expired
- 1974-01-31 FR FR7403281A patent/FR2216372B1/fr not_active Expired
- 1974-02-01 IT IT48101/74A patent/IT1002836B/en active
- 1974-02-01 FI FI288/74A patent/FI57792C/en active
- 1974-02-02 TR TR17984A patent/TR17984A/en unknown
- 1974-02-04 DD DD176358A patent/DD111411A5/xx unknown
- 1974-02-04 LU LU69307A patent/LU69307A1/xx unknown
- 1974-02-04 BR BR787/74A patent/BR7400787D0/en unknown
- 1974-02-04 CH CH152474A patent/CH577038A5/xx not_active IP Right Cessation
- 1974-02-04 NL NLAANVRAGE7401503,A patent/NL186972C/en not_active IP Right Cessation
- 1974-02-04 DK DK58174A patent/DK147767C/en not_active IP Right Cessation
- 1974-02-04 YU YU00268/74A patent/YU36393B/en unknown
- 1974-02-05 IE IE217/74A patent/IE39328B1/en unknown
- 1974-02-05 JP JP49014158A patent/JPS5747283B2/ja not_active Expired
- 1974-02-05 RO RO77535A patent/RO85291B/en unknown
- 1974-02-08 IN IN268/CAL/1974A patent/IN141349B/en unknown
-
1977
- 1977-10-20 HK HK534/77A patent/HK53477A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH577038A5 (en) | 1976-06-30 |
| IL43990A0 (en) | 1974-05-16 |
| PH12950A (en) | 1979-10-18 |
| DK147767B (en) | 1984-12-03 |
| IN141349B (en) | 1977-02-19 |
| NL186972C (en) | 1991-04-16 |
| FI57792C (en) | 1980-10-10 |
| JPS5747283B2 (en) | 1982-10-08 |
| NL7401503A (en) | 1974-08-07 |
| YU36393B (en) | 1983-06-30 |
| TR17984A (en) | 1976-08-20 |
| NL186972B (en) | 1990-11-16 |
| RO85291A (en) | 1984-09-29 |
| AR203097A1 (en) | 1975-08-14 |
| JPS5046917A (en) | 1975-04-26 |
| BR7400787D0 (en) | 1974-11-05 |
| CA1052064A (en) | 1979-04-10 |
| IL43990A (en) | 1976-08-31 |
| GB1452400A (en) | 1976-10-13 |
| IE39328L (en) | 1974-08-05 |
| FR2216372A1 (en) | 1974-08-30 |
| DE2403947A1 (en) | 1974-08-08 |
| DK147767C (en) | 1985-05-28 |
| IT1002836B (en) | 1976-05-20 |
| FR2216372B1 (en) | 1977-09-16 |
| YU26874A (en) | 1981-11-13 |
| AU6513774A (en) | 1975-08-07 |
| RO85291B (en) | 1984-10-30 |
| LU69307A1 (en) | 1974-05-29 |
| DD111411A5 (en) | 1975-02-12 |
| NO740055L (en) | 1974-08-06 |
| HK53477A (en) | 1977-10-28 |
| FI57792B (en) | 1980-06-30 |
| DE2403947C2 (en) | 1990-12-06 |
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