GB1199566A - Method of Manufacturing Porous Products from Films or Filaments. - Google Patents
Method of Manufacturing Porous Products from Films or Filaments.Info
- Publication number
- GB1199566A GB1199566A GB3807266A GB3807266A GB1199566A GB 1199566 A GB1199566 A GB 1199566A GB 3807266 A GB3807266 A GB 3807266A GB 3807266 A GB3807266 A GB 3807266A GB 1199566 A GB1199566 A GB 1199566A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- melt index
- polyoxyethylene
- weight
- polycaprolactam
- 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
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Artificial Filaments (AREA)
Abstract
1,199,566. Making porous products from films and filaments. O.-B. RASMUSSEN. 18 Aug., 1967 [24 Aug., 1966], No. 38072/66. Addition to 1,148,382. Heading B5B. [Also in Division C3] Porous products are made by melt mixing a film- and filament-forming polymeric material A colloidally with a polymeric material B that has a lower molecular weight, a lower melting-point and a higher melt index than A, is incompatible with A and is chemically different from A, extruding the molten mixture as a sheet or filament and phase orientating the extruded product by stretching in the direction of extrusion, cooling the stretched sheet or filament to make the polymeric material A crystallize and agglomerate while the material B is still in the liquid state, fibrillating or partly removing the material B and thereafter reinforcing the structure of the product by a cross-linking or a polymerization reaction of the material B. The removal of part of the material B may be effected by dissolution with a solvent which dissolves the B phase but not the A phase. Polymerization may be effected by polymerization in situ of a monomer which is soluble in the B phase. Cross-linking may be effected by a gas phase reaction. The material B may be a graft polymer in which ethylene oxide has been used for the grafting, e.g. the graft polymer may be produced by grafting polyoxyethylene chains on to either material A or a polymer which is soluble in A. The A phase may be a polyamide and the B phase may be a graft copolymer of the same polyamide and polyoxyethylene. In an example, to isotactic polypropylene with melt index 0À3 is admixed 30% by weight of a copolymer of 29% of vinyl acetate and 71% of ethylene, the copolymer having a melt index of 15 (A.S.T.M. method, Condition E). The components are emulsified into one another and the mixture melt-extruded as a film. In a second example, to polycaprolactam of melt index 0À35 (condition K) is admixed 35% by weight of polyoxyethylene of melt index 3 (Condition E). In a third example there is admixed to the polycaprolactam of Example 2, 35% by weight of a graft copolymer of 30% polyoxyethylene and 70% of polycaprolactam.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3807266A GB1199566A (en) | 1965-02-23 | 1966-08-24 | Method of Manufacturing Porous Products from Films or Filaments. |
IL2852667A IL28526A (en) | 1966-08-24 | 1967-08-18 | Method of manufacturing fibrous products from films or filaments |
SE1159167A SE335403B (en) | 1966-08-24 | 1967-08-18 | |
DE19671669528 DE1669528A1 (en) | 1966-08-24 | 1967-08-19 | Process for the manufacture of fiber products from films or threads |
CH1175867A CH510079A (en) | 1965-02-23 | 1967-08-22 | Strong non-woven fabrics etc from foils composed of two |
FR118718A FR1534577A (en) | 1966-08-24 | 1967-08-23 | Process for manufacturing fibrous products from films or filaments |
NL6711616A NL6711616A (en) | 1966-08-24 | 1967-08-23 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB787065A GB1148382A (en) | 1965-02-23 | 1965-02-23 | Split films of polymer material |
GB2933265 | 1965-07-10 | ||
GB3807266A GB1199566A (en) | 1965-02-23 | 1966-08-24 | Method of Manufacturing Porous Products from Films or Filaments. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1199566A true GB1199566A (en) | 1970-07-22 |
Family
ID=27255073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3807266A Expired GB1199566A (en) | 1965-02-23 | 1966-08-24 | Method of Manufacturing Porous Products from Films or Filaments. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH510079A (en) |
GB (1) | GB1199566A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100238A (en) * | 1975-03-20 | 1978-07-11 | Nippon Oil Company, Ltd. | Process for producing permeable membranes |
US4197148A (en) * | 1976-12-10 | 1980-04-08 | Nippon Oil Co., Ltd. | Process for producing a permeable membrane |
WO1999034049A1 (en) * | 1997-12-31 | 1999-07-08 | Kimberly-Clark Worldwide, Inc. | Process for making a nonwoven, porous fabric from polymer composite materials |
US6090472A (en) * | 1997-12-31 | 2000-07-18 | Kimberly-Clark Worldwide, Inc. | Nonwoven, porous fabric produced from polymer composite materials |
-
1966
- 1966-08-24 GB GB3807266A patent/GB1199566A/en not_active Expired
-
1967
- 1967-08-22 CH CH1175867A patent/CH510079A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100238A (en) * | 1975-03-20 | 1978-07-11 | Nippon Oil Company, Ltd. | Process for producing permeable membranes |
US4197148A (en) * | 1976-12-10 | 1980-04-08 | Nippon Oil Co., Ltd. | Process for producing a permeable membrane |
WO1999034049A1 (en) * | 1997-12-31 | 1999-07-08 | Kimberly-Clark Worldwide, Inc. | Process for making a nonwoven, porous fabric from polymer composite materials |
US6071451A (en) * | 1997-12-31 | 2000-06-06 | Kimberly-Clark Worldwide, Inc. | Process for making a nonwoven, porous fabric from polymer composite materials |
US6090472A (en) * | 1997-12-31 | 2000-07-18 | Kimberly-Clark Worldwide, Inc. | Nonwoven, porous fabric produced from polymer composite materials |
Also Published As
Publication number | Publication date |
---|---|
CH510079A (en) | 1971-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |