GB1167038A - Microporous Filaments. - Google Patents
Microporous Filaments.Info
- Publication number
- GB1167038A GB1167038A GB3578966A GB3578966A GB1167038A GB 1167038 A GB1167038 A GB 1167038A GB 3578966 A GB3578966 A GB 3578966A GB 3578966 A GB3578966 A GB 3578966A GB 1167038 A GB1167038 A GB 1167038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- filaments
- blowing agent
- extruded
- gaseous
- 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
-
- 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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
- D01D5/247—Discontinuous hollow structure or microporous structure
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- 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
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Artificial Filaments (AREA)
Abstract
1,167,038. Microporous filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 28 July, 1967 [10 Aug., 1966], No. 35789/66. Headings C3C and C3P. In a process for producing fine microporous filaments by melt extruding synthetic thermoplastic polymers, the polymer is melted under pressure and the pressure in the melt is raised immediately to a pressure of at least 1000 p.s.i.g. in the presence of a blowing agent, the pressure being maintained at or above 1000 p.s.i.g. until the molten polymer is extruded. The blowing agent may be a normally solid or liquid substance which yields gaseous products or becomes gaseous at elevated temperatures, or a normally gaseous substance. The extruded filaments may be gas-cooled, and may be stretched to up to 4 times their original length. Examples describe the preparation of filament from compositions of polypropylene, an azodicarbonamide and sodium stearate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3578966A GB1167038A (en) | 1966-08-10 | 1966-08-10 | Microporous Filaments. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3578966A GB1167038A (en) | 1966-08-10 | 1966-08-10 | Microporous Filaments. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1167038A true GB1167038A (en) | 1969-10-15 |
Family
ID=10381574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3578966A Expired GB1167038A (en) | 1966-08-10 | 1966-08-10 | Microporous Filaments. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1167038A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2093313A1 (en) * | 2008-02-22 | 2009-08-26 | Total Petrochemicals Research Feluy | Foamed fibres |
| CN117926435A (en) * | 2024-03-25 | 2024-04-26 | 上海元纶新材料有限公司 | Preparation method and application of homogeneous microporous material |
-
1966
- 1966-08-10 GB GB3578966A patent/GB1167038A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2093313A1 (en) * | 2008-02-22 | 2009-08-26 | Total Petrochemicals Research Feluy | Foamed fibres |
| CN117926435A (en) * | 2024-03-25 | 2024-04-26 | 上海元纶新材料有限公司 | Preparation method and application of homogeneous microporous material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |