CA925671A - Open-celled microporous film - Google Patents

Open-celled microporous film

Info

Publication number
CA925671A
CA925671A CA098131A CA98131A CA925671A CA 925671 A CA925671 A CA 925671A CA 098131 A CA098131 A CA 098131A CA 98131 A CA98131 A CA 98131A CA 925671 A CA925671 A CA 925671A
Authority
CA
Canada
Prior art keywords
open
microporous film
celled microporous
celled
film
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
CA098131A
Other languages
English (en)
Other versions
CA98131S (en
Inventor
L. Druin Melvin
T. Loft John
G. Plovan Steven
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.)
Celanese Corp
Original Assignee
Celanese Corp
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
Application filed by Celanese Corp filed Critical Celanese Corp
Application granted granted Critical
Publication of CA925671A publication Critical patent/CA925671A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • B29C55/065—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed in several stretching steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/001—Tubular films, sleeves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CA098131A 1969-11-13 1970-11-13 Open-celled microporous film Expired CA925671A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87651169A 1969-11-13 1969-11-13
US8471270A 1970-10-28 1970-10-28

Publications (1)

Publication Number Publication Date
CA925671A true CA925671A (en) 1973-05-08

Family

ID=26771333

Family Applications (1)

Application Number Title Priority Date Filing Date
CA098131A Expired CA925671A (en) 1969-11-13 1970-11-13 Open-celled microporous film

Country Status (8)

Country Link
BE (1) BE758823A (de)
CA (1) CA925671A (de)
CH (1) CH539496A (de)
DE (1) DE2055193C2 (de)
ES (1) ES385526A1 (de)
FR (1) FR2067271B1 (de)
GB (1) GB1287505A (de)
IL (1) IL35643A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843761A (en) * 1973-05-30 1974-10-22 Celanese Corp Process for preparing a thermoplastic microporous film involving a cold stretching step and multiple hot stretching steps
ZA80465B (en) * 1979-02-13 1981-08-26 Celanese Corp Process for preparing hollow microporous polypropylene fibers
US5677360A (en) * 1991-02-13 1997-10-14 Mitsubishi Rayon Co., Ltd. Hydrophilic polymer alloy, fiber and porous membrane comprising this polymer alloy, and methods for preparing them
WO1992014783A1 (en) * 1991-02-13 1992-09-03 Mitsubishi Rayon Co., Ltd. Hydrophilic polymer alloy, fiber and porous film produced therefrom, and production of the same
WO2002103099A1 (en) 2001-06-19 2002-12-27 Kappler Safety Group Vapor permeable, liquid impermeable composite fabric and fabrication process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB887346A (en) * 1959-09-09 1962-01-17 Ici Ltd Linear polyester films and processes for their production
US3426754A (en) * 1964-06-12 1969-02-11 Celanese Corp Breathable medical dressing
FR1544807A (fr) * 1967-09-27 1968-11-08 Celanese Corp Pellicule à cellules ouvertes

Also Published As

Publication number Publication date
CH539496A (fr) 1973-07-31
IL35643A0 (en) 1971-02-25
ES385526A1 (es) 1973-10-01
DE2055193C2 (de) 1985-09-12
IL35643A (en) 1973-07-30
GB1287505A (en) 1972-08-31
FR2067271B1 (de) 1975-01-10
BE758823A (fr) 1971-05-12
DE2055193A1 (de) 1971-05-19
FR2067271A1 (de) 1971-08-20

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