NL190056B - Werkwijze voor de vervaardiging van opencellige microporeuze polypropeenfilms. - Google Patents

Werkwijze voor de vervaardiging van opencellige microporeuze polypropeenfilms.

Info

Publication number
NL190056B
NL190056B NLAANVRAGE7407177,A NL7407177A NL190056B NL 190056 B NL190056 B NL 190056B NL 7407177 A NL7407177 A NL 7407177A NL 190056 B NL190056 B NL 190056B
Authority
NL
Netherlands
Prior art keywords
polypropene
films
manufacture
open
cell microporous
Prior art date
Application number
NLAANVRAGE7407177,A
Other languages
English (en)
Other versions
NL7407177A (nl
NL190056C (nl
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
Publication of NL7407177A publication Critical patent/NL7407177A/xx
Publication of NL190056B publication Critical patent/NL190056B/nl
Application granted granted Critical
Publication of NL190056C publication Critical patent/NL190056C/nl

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2359/00—Characterised by the use of polyacetals containing polyoxymethylene sequences only
    • C08J2359/02—Copolyoxymethylenes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/73—Processes of stretching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/91—Product with molecular orientation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
NLAANVRAGE7407177,A 1973-05-30 1974-05-29 Werkwijze voor de vervaardiging van opencellige microporeuze polypropeenfilms. NL190056C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00365365A US3843761A (en) 1973-05-30 1973-05-30 Process for preparing a thermoplastic microporous film involving a cold stretching step and multiple hot stretching steps

Publications (3)

Publication Number Publication Date
NL7407177A NL7407177A (nl) 1974-12-03
NL190056B true NL190056B (nl) 1993-05-17
NL190056C NL190056C (nl) 1993-10-18

Family

ID=23438584

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7407177,A NL190056C (nl) 1973-05-30 1974-05-29 Werkwijze voor de vervaardiging van opencellige microporeuze polypropeenfilms.

Country Status (10)

Country Link
US (1) US3843761A (nl)
JP (1) JPS5747017B2 (nl)
BE (1) BE815725A (nl)
BR (1) BR7404451D0 (nl)
CA (1) CA1035517A (nl)
DE (1) DE2426193C2 (nl)
FR (1) FR2231504B1 (nl)
GB (1) GB1452977A (nl)
IT (1) IT1012965B (nl)
NL (1) NL190056C (nl)

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Also Published As

Publication number Publication date
FR2231504B1 (nl) 1978-01-27
NL7407177A (nl) 1974-12-03
GB1452977A (en) 1976-10-20
JPS5747017B2 (nl) 1982-10-06
JPS5022068A (nl) 1975-03-08
NL190056C (nl) 1993-10-18
DE2426193C2 (de) 1984-08-30
FR2231504A1 (nl) 1974-12-27
BE815725A (fr) 1974-12-02
DE2426193A1 (de) 1974-12-19
US3843761A (en) 1974-10-22
CA1035517A (en) 1978-08-01
BR7404451D0 (pt) 1975-09-30
IT1012965B (it) 1977-03-10

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