GB1303151A - - Google Patents
Info
- Publication number
- GB1303151A GB1303151A GB1588370A GB1588370A GB1303151A GB 1303151 A GB1303151 A GB 1303151A GB 1588370 A GB1588370 A GB 1588370A GB 1588370 A GB1588370 A GB 1588370A GB 1303151 A GB1303151 A GB 1303151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polypropylene
- fraction
- toluene
- weight
- soluble
- 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
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/426—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by cutting films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
1303151 Polypropylene strips BADISCHE ANILIN & SODA FABRIK AG 3 April 1970 [5 April 1969] 15883/70 Heading B5B [Also in Division C3] Strips of polypropylene are produced by extruding at a melt temperature of 180 to 360‹ C. a film or sheeting having a thickness of 0À03 to 4 mm. and a width of 150 to 3000 mm., cutting the film or sheeting longitudinally at a temperature of the material of 10 to 100 ‹C. into strips having a width of 2 to 70 mm. and drawing the strips monoaxially and longitudinally at a stretch ratio of 4:1 to 15:1 at a temperature of the material which is higher than 10‹ C. but lower than the crystallite melting point of the poly-propylene used wherein the polypropylene used in a mixture of: (a) 70 to 80% by weight of a polypropylene of which less than 1% by weight is soluble in toluene boiling at standard pressure, the ratio by weight of polypropylene to toluene being 5:95; and (b) 20 to 30% by weight of a polypropylene of which more than 99% by weight is soluble in toluene boiling at standard pressure, the ratio by weight of polypropylene to toluene being 5:95; with the provisos: (I) that the polypropylenes have substantially the same intrinsic viscosity and substantially the same molecular weight distribution (determined by the method of gel permeation chromatography) and (II) that the absolute values of the intrinsic viscosities (#) (measured in decahydronaphthalene at 130‹ C.) are always within the range of from 1 to 10, preferably 1À2 to 3À8. In the example the starting materials are: (A) a conventional finely powdered polypropylene consisting of a fraction soluble in boiling toluene and a fraction insoluble in boiling toluene. The intrinsic viscosities (#) (measured as stated above) are: insoluble fraction 3À6; soluble fraction 2À6: (B) a conventional different finely powdered polypropylene consisting of a fraction soluble in boiling toluene and a fraction insoluble in boiling toluene. The intrinsic viscosities (#) (measured as before) are: insoluble fraction 2À7; soluble fraction 1À6. The soluble fraction of polypropylene (A) and the insoluble fraction of polypropylene (B) are isolated by extraction with boiling toluene and these two fractionswhose molecular weight distributions (determined as stated above) are substantially the same-are homogenized with each other in the ratio by weight 25:75 at 220‹ C. The mixture obtained has crystallite melting point of about 160‹ C. Film having a thickness of 0À1 mm. and a width of 600 mm. as extruded from the polypropylene with conventional equipment at a melt temperature of 220‹ C., the film is cut longitudinally at a temperature of the material of 24‹ C. into strips having a width of 10 mm., and the strips are drawn longitudinally at a draw ratio of 7:1 and a temperature of 135‹ C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691917657 DE1917657C3 (en) | 1969-04-05 | 1969-04-05 | Process for making ribbons from polypropylene |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1303151A true GB1303151A (en) | 1973-01-17 |
Family
ID=5730493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1588370A Expired GB1303151A (en) | 1969-04-05 | 1970-04-03 |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT295733B (en) |
BE (1) | BE748459A (en) |
DE (1) | DE1917657C3 (en) |
ES (1) | ES378258A1 (en) |
FR (1) | FR2038265A1 (en) |
GB (1) | GB1303151A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007131684A1 (en) * | 2006-05-11 | 2007-11-22 | Trioplast Ab | Apparatus and method for producing plastic film |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PH16274A (en) * | 1978-12-13 | 1983-08-26 | Sumitomo Chemical Co | Molded products of polypropylene |
-
1969
- 1969-04-05 DE DE19691917657 patent/DE1917657C3/en not_active Expired
-
1970
- 1970-03-13 AT AT236370A patent/AT295733B/en not_active IP Right Cessation
- 1970-04-01 FR FR7011676A patent/FR2038265A1/fr not_active Withdrawn
- 1970-04-03 BE BE748459D patent/BE748459A/en not_active IP Right Cessation
- 1970-04-03 GB GB1588370A patent/GB1303151A/en not_active Expired
- 1970-04-04 ES ES378258A patent/ES378258A1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007131684A1 (en) * | 2006-05-11 | 2007-11-22 | Trioplast Ab | Apparatus and method for producing plastic film |
Also Published As
Publication number | Publication date |
---|---|
DE1917657B2 (en) | 1974-07-25 |
FR2038265A1 (en) | 1971-01-08 |
ES378258A1 (en) | 1972-05-16 |
DE1917657A1 (en) | 1970-10-15 |
DE1917657C3 (en) | 1975-03-13 |
BE748459A (en) | 1970-10-05 |
AT295733B (en) | 1972-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68914348T2 (en) | Low temperature shrinkable film. | |
DE3244294A1 (en) | STRETCH PACKAGING FILMS | |
DE1294016B (en) | Thermoplastic compositions made from polyolefins and colophony derivatives | |
ES483946A1 (en) | A process for extruding ethylene polymers. | |
GB1303159A (en) | ||
GB1234639A (en) | ||
US3798115A (en) | Laminates of polypropylene and polyamide | |
DE2729886A1 (en) | STRETCHABLE FILMS FOR PACKAGING FOOD | |
GB1303151A (en) | ||
US4393022A (en) | Eraser and process for its manufacture | |
GB1303157A (en) | ||
GB1303156A (en) | ||
GB1303154A (en) | ||
GB1255695A (en) | Production of polyisobutylene-polyethylene sheeting and film | |
US3376244A (en) | Polypropylene wax film | |
GB1305653A (en) | ||
GB1303152A (en) | ||
GB1345738A (en) | Polypropylene moulding material | |
GB1246052A (en) | Process for the production of fibrillated polyolefin products | |
DE2254440A1 (en) | Low density polyethylene/crystalline polyolefin shrink film - combines tear resistance with good shrinkage, mechanical, blocking and friction characteristics | |
GB871183A (en) | Improvements relating to the production of films of alpha-olefin polymers | |
DE2034018A1 (en) | Biaxially drawn polyolefin sheets - by extruding and drawing mixt of polyethylene and two polypropylenes with similar | |
DE2034020A1 (en) | Monoaxially drawn polyolefin sheets - by extruding and drawing mixt of polyethylene and two polypropylenes with similar | |
DE1694707B2 (en) | Use of thermoplastic molding compounds based on polyolefins for the production of rope goods as well as decorative and decorative ribbons | |
AT264125B (en) | Film-forming mixture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |