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
Application number
GB3807266A
Inventor
Ole-Bendt Rasmussen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB787065A external-priority patent/GB1148382A/en
Application filed by Individual filed Critical Individual
Priority to GB3807266A priority Critical patent/GB1199566A/en
Priority to IL2852667A priority patent/IL28526A/en
Priority to SE1159167A priority patent/SE335403B/xx
Priority to DE19671669528 priority patent/DE1669528A1/en
Priority to CH1175867A priority patent/CH510079A/en
Priority to FR118718A priority patent/FR1534577A/en
Priority to NL6711616A priority patent/NL6711616A/xx
Publication of GB1199566A publication Critical patent/GB1199566A/en
Expired legal-status Critical Current

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

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.
GB3807266A 1965-02-23 1966-08-24 Method of Manufacturing Porous Products from Films or Filaments. Expired GB1199566A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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