GB1135542A - Process for producing polyolefin fibres - Google Patents
Process for producing polyolefin fibresInfo
- Publication number
- GB1135542A GB1135542A GB8369/67A GB836967A GB1135542A GB 1135542 A GB1135542 A GB 1135542A GB 8369/67 A GB8369/67 A GB 8369/67A GB 836967 A GB836967 A GB 836967A GB 1135542 A GB1135542 A GB 1135542A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymerization
- catalyst
- ethylene
- propylene
- resulting
- 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
- 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
- D01F6/30—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/50—Partial depolymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
1,135,542. Propylene polymers. ASAHI KASEI KOGYO K.K. 22 Feb., 1967 [23 Feb., 1966], No. 8369/67. Heading C3P. A process for producing polyolefin fibres comprises random copolymerization of propylene with 1 to 20 mol per cent of an olefinic comonomer in the presence of a catalyst capable of giving a stereospecific polymer, thermal depolymerization of the resulting copolymer so that the ratio of intrinsic viscosities of the copolymer after polymerization and before spinning is not less than 1À25, melt spinning the resulting product into yarn and then stretching the yarn. Specified comonomers are ethylene, butene-1, pentane-1, 4-methylpentene-1, octene-1, 3- methylbutene-1 styrene and substituted styrene. The polymerization catalyst may comprise an organometallic compound and a transition metal compound, and polymerization may be effected in the presence of hydrogen. Depolymerization may be effected in an extruder, optionally in the presence of a catalyst, e.g. an organotin compound, and the product mixed with heat and light stabilizers, dyeing promoters and delustering agents, and pelletized. Examples describe the polymerization of propylene with (1 and 2) ethylene, (3) ethylene in the presence of hydrogen, and (4) butene-1, in n-hexane with a titanium trichloride/diethyl aluminium chloride catalyst, the resulting polymers being purified with methanol, depolymerized in the presence of dibutyl tin maleate, mixed with stabilizers, (2 and 4) a polyaminotriazole dyeing promoter and (7) a titanium oxide delustering agent, melt spun and stretched.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1047066 | 1966-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1135542A true GB1135542A (en) | 1968-12-04 |
Family
ID=11751006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8369/67A Expired GB1135542A (en) | 1966-02-23 | 1967-02-22 | Process for producing polyolefin fibres |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1135542A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2827764A1 (en) * | 1978-06-24 | 1980-01-10 | Hoechst Ag | METHOD FOR PRODUCING A POLYPROPYLENE SUITABLE FOR SEALABLE FILMS |
| EP0985686A2 (en) * | 1998-08-24 | 2000-03-15 | Japan Polychem Corporation | Polypropylene molding material |
| CN114762837A (en) * | 2021-07-15 | 2022-07-19 | 中国石油天然气股份有限公司 | Olefin catalyst composition and application thereof |
-
1967
- 1967-02-22 GB GB8369/67A patent/GB1135542A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2827764A1 (en) * | 1978-06-24 | 1980-01-10 | Hoechst Ag | METHOD FOR PRODUCING A POLYPROPYLENE SUITABLE FOR SEALABLE FILMS |
| EP0985686A2 (en) * | 1998-08-24 | 2000-03-15 | Japan Polychem Corporation | Polypropylene molding material |
| EP0985686A3 (en) * | 1998-08-24 | 2001-05-30 | Japan Polychem Corporation | Polypropylene molding material |
| CN114762837A (en) * | 2021-07-15 | 2022-07-19 | 中国石油天然气股份有限公司 | Olefin catalyst composition and application thereof |
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