BR7705392A - Aperfeicoamento em processo para a formacao de filamentos de polipirrolidona - Google Patents
Aperfeicoamento em processo para a formacao de filamentos de polipirrolidonaInfo
- Publication number
- BR7705392A BR7705392A BR7705392A BR7705392A BR7705392A BR 7705392 A BR7705392 A BR 7705392A BR 7705392 A BR7705392 A BR 7705392A BR 7705392 A BR7705392 A BR 7705392A BR 7705392 A BR7705392 A BR 7705392A
- Authority
- BR
- Brazil
- Prior art keywords
- polypirrolidone
- filaments
- formation
- processing
- polypirrolidone filaments
- Prior art date
Links
Classifications
-
- 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
- D01F6/74—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Detergent Compositions (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/714,461 US4094945A (en) | 1976-08-16 | 1976-08-16 | Spinning of polypyrrolidone |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7705392A true BR7705392A (pt) | 1978-06-06 |
Family
ID=24870136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7705392A BR7705392A (pt) | 1976-08-16 | 1977-08-15 | Aperfeicoamento em processo para a formacao de filamentos de polipirrolidona |
Country Status (11)
Country | Link |
---|---|
US (1) | US4094945A (pt) |
JP (1) | JPS5324420A (pt) |
BE (1) | BE857016A (pt) |
BR (1) | BR7705392A (pt) |
CA (1) | CA1094716A (pt) |
DE (1) | DE2736302C3 (pt) |
ES (1) | ES461615A1 (pt) |
FR (1) | FR2362221A1 (pt) |
GB (1) | GB1558639A (pt) |
IT (1) | IT1083938B (pt) |
NL (1) | NL173289C (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61113598A (ja) * | 1984-11-06 | 1986-05-31 | 岡田 照子 | ヘリコプタ−及びヘリポ−ト超電導磁石装置 |
JP2828422B2 (ja) * | 1988-10-18 | 1998-11-25 | アルプス電気株式会社 | 磁気ヘッドユニットおよびテープガイド部材とその製造方法 |
JPH08241550A (ja) * | 1996-03-08 | 1996-09-17 | Mitsumi Electric Co Ltd | 磁気ヘッドユニット |
US20170151835A1 (en) * | 2014-06-06 | 2017-06-01 | Bridgestone Corporation | Tire |
CN110591341B (zh) * | 2019-10-09 | 2023-04-07 | 江苏万纳普新材料科技有限公司 | 一种尼龙树脂改性专用无卤阻燃增效功能母粒及其制备方法 |
JP2023110109A (ja) * | 2020-06-19 | 2023-08-09 | 国立大学法人京都工芸繊維大学 | ポリアミド4繊維の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2216835A (en) * | 1938-09-19 | 1940-10-08 | Du Pont | Polymeric materials |
US2374126A (en) * | 1942-06-03 | 1945-04-17 | Du Pont | Composition of matter |
US2711398A (en) * | 1953-02-24 | 1955-06-21 | Arnold Hoffman & Co Inc | Anhydrous formic acid solutions of polypyrrolidone |
US2919257A (en) * | 1956-03-22 | 1959-12-29 | Du Pont | Composition of matter comprising a sulfur dioxide containing solution of a polyamide |
US3117941A (en) * | 1958-10-15 | 1964-01-14 | Process for the production of expanda- | |
US3143527A (en) * | 1959-03-27 | 1964-08-04 | Du Pont | Polyamides from alkyl piperazines |
US3042647A (en) * | 1959-04-09 | 1962-07-03 | Monsanto Chemicals | Composition consisting of polypyrrolidone and a chlorinated phenol and process for preparing same |
US3003985A (en) * | 1959-05-27 | 1961-10-10 | Chemstrand Corp | Solution of polypyrrolidone in a mixture of chloral hydrate and water, and process of making same |
US3070562A (en) * | 1959-06-30 | 1962-12-25 | Du Pont | Fiber-forming polyamide dissolved in a solvent mixture containing formic acid and at least one other compound |
US3060141A (en) * | 1959-08-20 | 1962-10-23 | Monsanto Chemicals | Solution of polypyrrolidone in aqueous formic acid and method of preparing same |
US3033810A (en) * | 1960-03-21 | 1962-05-08 | Chemstrand Corp | Composition comprising polypyrrolidone polymer dissolved in ferric chloride solution and process for preparing same |
-
1976
- 1976-08-16 US US05/714,461 patent/US4094945A/en not_active Expired - Lifetime
-
1977
- 1977-07-20 BE BE179524A patent/BE857016A/xx not_active IP Right Cessation
- 1977-07-28 NL NLAANVRAGE7708403,A patent/NL173289C/xx not_active IP Right Cessation
- 1977-08-08 FR FR7724369A patent/FR2362221A1/fr active Granted
- 1977-08-09 CA CA284,387A patent/CA1094716A/en not_active Expired
- 1977-08-10 JP JP9521777A patent/JPS5324420A/ja active Granted
- 1977-08-12 IT IT26703/77A patent/IT1083938B/it active
- 1977-08-12 DE DE2736302A patent/DE2736302C3/de not_active Expired
- 1977-08-15 BR BR7705392A patent/BR7705392A/pt unknown
- 1977-08-16 ES ES461615A patent/ES461615A1/es not_active Expired
- 1977-08-16 GB GB34426/77A patent/GB1558639A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2736302A1 (de) | 1978-02-23 |
ES461615A1 (es) | 1978-06-16 |
DE2736302B2 (de) | 1981-08-06 |
US4094945A (en) | 1978-06-13 |
JPS5527170B2 (pt) | 1980-07-18 |
NL7708403A (nl) | 1978-02-20 |
JPS5324420A (en) | 1978-03-07 |
NL173289B (nl) | 1983-08-01 |
DE2736302C3 (de) | 1982-05-19 |
FR2362221B1 (pt) | 1982-02-26 |
NL173289C (nl) | 1984-01-02 |
GB1558639A (en) | 1980-01-09 |
BE857016A (fr) | 1977-11-14 |
FR2362221A1 (fr) | 1978-03-17 |
CA1094716A (en) | 1981-01-27 |
IT1083938B (it) | 1985-05-25 |
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