GB1376151A - Fluid transmitting porous material - Google Patents

Fluid transmitting porous material

Info

Publication number
GB1376151A
GB1376151A GB4881171A GB4881171A GB1376151A GB 1376151 A GB1376151 A GB 1376151A GB 4881171 A GB4881171 A GB 4881171A GB 4881171 A GB4881171 A GB 4881171A GB 1376151 A GB1376151 A GB 1376151A
Authority
GB
United Kingdom
Prior art keywords
acetate
copolymer
rubber
foamed
mixture
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
GB4881171A
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.)
Asahi Dow Ltd
Original Assignee
Asahi Dow Ltd
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 JP45091587A external-priority patent/JPS492182B1/ja
Priority claimed from JP4129771A external-priority patent/JPS5519936B1/ja
Priority claimed from JP4130371A external-priority patent/JPS556659B1/ja
Application filed by Asahi Dow Ltd filed Critical Asahi Dow Ltd
Publication of GB1376151A publication Critical patent/GB1376151A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)

Abstract

1376151 Laminated products ASAHI-DOW Ltd 20 Oct 1971 [20 Oct 1971 9 June 1971 10 June 1971] 48811/71 Headings B5A and B5N [Also in Divisions B2 and C3] A tube or sheet of fluid transmitting porous material is made by extruding a blend of (i) a low or high density polyethylene, a polypropylene, a propylene-ethylene or -hexene copolymer, a polybutene, a polypentene or an ethylenevinyl acetate -ethyl acrylate or -methyl methacrylate copolymer having less than 10% by wt. of acetate, acrylate or methacrylate groups respectively, or mixtures thereof and (ii) 5-95% by wt. of a copolymer of ethylene and vinyl acetate ethyl acrylate or methyl methacrylate having not less than 10% by wt. of acetate, acrylate or methacrylate groups respectively and the acetate copolymer having a melt index of not less than 2À0, a natural rubber, a polybutadiene rubber, a solution- or emulsionpolymerized styrene-butadiene rubber, a butadiene-acrylonitrile or -isoprene rubber, or a styrene-butadiene or -isoprene block copolymer resin: and 0À1-5À0 parts by wt./100 parts by wt. of the blend of a thermal decomposition type blowing agent. The mixture is continuously blended and thermoplasticized by the extruder to decompose the blowing agent and the mixture is extruded through a die slit with foaming under the two following extrusion conditions, where and 1À2<a<10, and S is the average die slit clearance in mm., t 1 and t 2 are the average thickness of the unfoamed and foamed composition respectively in mm. and a is the expansion ratio of the foamed to unfoamed composition, and where Q is obtained by dividing the weight of the foamed material extruded per minute by the density of the solid components of the foamed material, W is the cross-sectional area of the die slit in cm<SP>2</SP>. (as defined), and V is the extrusion speed in cm./min. In Example 8 the porous sheet is laminated, by pressure, on to a cotton cloth coated with a rubber adhesive and the laminate was then coated with a solution of nylon resin in a mixture of methanol and calcium chloride.
GB4881171A 1970-10-20 1971-10-20 Fluid transmitting porous material Expired GB1376151A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP45091587A JPS492182B1 (en) 1970-10-20 1970-10-20
JP4129771A JPS5519936B1 (en) 1971-06-09 1971-06-09
JP4130371A JPS556659B1 (en) 1971-06-10 1971-06-10

Publications (1)

Publication Number Publication Date
GB1376151A true GB1376151A (en) 1974-12-04

Family

ID=27290770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4881171A Expired GB1376151A (en) 1970-10-20 1971-10-20 Fluid transmitting porous material

Country Status (3)

Country Link
DE (1) DE2152328C3 (en)
GB (1) GB1376151A (en)
IT (1) IT942088B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653608B4 (en) * 1996-12-20 2006-03-16 Dieter Dipl.-Ing. Dengl Foils with textile handle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148083B2 (en) * 1973-01-09 1976-12-18
AR204831A1 (en) * 1973-05-08 1976-03-05 Du Pont SUITABLE CURABLE BLENDS TO BE USED IN VULCANIZABLE COMPOSITIONS VULCANIZABLE COMPOSITIONS AND VULCANIZED PRODUCTS
DE3922213C1 (en) * 1989-07-06 1991-02-28 Mag Dr. Frenkel Gmbh Med. Apparate Und Geraete, 7483 Inzigkofen, De Air bubble generator for bubble bath - has nozzle fitted, porous hoses fed from air distributor
DE4103811C1 (en) * 1991-02-08 1992-04-02 Mag Dr. Frenkel Gmbh Med. Apparate Und Geraete, 7483 Inzigkofen, De Targetted liq. massager for body parts - has tube coupling to outlet branch of bubble bath mat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653608B4 (en) * 1996-12-20 2006-03-16 Dieter Dipl.-Ing. Dengl Foils with textile handle

Also Published As

Publication number Publication date
IT942088B (en) 1973-03-20
DE2152328C3 (en) 1980-02-14
DE2152328A1 (en) 1972-04-27
DE2152328B2 (en) 1979-06-13

Similar Documents

Publication Publication Date Title
CN1832694B (en) Integrally foamed microstructured article
SE7707185L (en) COATING PROCEDURE
US3939237A (en) Method of making a fluid transmitting porous tube or sheet
KR830007275A (en) High pressure low density polyethylene polymer and extrusion coating method of polymer
EP0287826A2 (en) Process for producing foamed thermoplastic resin articles
GB1431840A (en) Process for producing a foamed polypropylene sheet
GB1516009A (en) Laminate packaging materials
GB1303220A (en)
IE41300L (en) Self-sealing films.
GB1376151A (en) Fluid transmitting porous material
GB1456759A (en) Production of cross-linked open-celled foam of an olefin polymer
GB1192132A (en) Method for preparing Porous Reticulate Films of Thermoplastic Material
KR900014495A (en) Directly Paintable Thermoplastic Polyolefin Mixtures
AU570546B2 (en) Thermoplastic resin composition containing cork
GB1272090A (en) Plasticised acrylonitrile polymer compositions and articles formed therefrom
ES432015A1 (en) Laminates of foamed polymeric material
GB1466027A (en) Water-and air-permeable material
GB1300262A (en) Foamed thermoplastics
GB1264852A (en)
GB1236373A (en) Improvements in cellular plastic materials
GB1448319A (en) Paper-like thermoplastic film
JPS6182755A (en) Medical tape base material
GB1454218A (en) Surface dyeable non-woven fabrics
GB1355905A (en) Foamable resin compositions
JPS54161671A (en) Preparation of polyolefin foam

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee