ES249096A1 - Improvements in porous plastic sheeting - Google Patents

Improvements in porous plastic sheeting

Info

Publication number
ES249096A1
ES249096A1 ES0249096A ES249096A ES249096A1 ES 249096 A1 ES249096 A1 ES 249096A1 ES 0249096 A ES0249096 A ES 0249096A ES 249096 A ES249096 A ES 249096A ES 249096 A1 ES249096 A1 ES 249096A1
Authority
ES
Spain
Prior art keywords
sheet
sodium chloride
polyvinyl chloride
plasticizer
solvent
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
ES0249096A
Other languages
Spanish (es)
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.)
Pritchett and Gold and EPS Co Ltd
Original Assignee
Pritchett and Gold and EPS Co 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
Application filed by Pritchett and Gold and EPS Co Ltd filed Critical Pritchett and Gold and EPS Co Ltd
Publication of ES249096A1 publication Critical patent/ES249096A1/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
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • B29C67/202—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 comprising elimination of a solid or a liquid ingredient
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride

Landscapes

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

Abstract

Microporous sheets are obtained by mixing polyvinyl chloride powder of up to 150m diameter, a plasticizer and powdered sodium chloride in an amount at least equal to 1 1/2 to not more than 4 times the weight of polyvinyl chloride, the particle size of the sodium chloride for a sheet of 1 to 5 mils. thickness being 5 to 10 m , and for a sheet of 6 mils. thickness and above, 8010 to m , and a volatile solvent for the plasticizer which is not a solvent for the polyvinyl chloride, thereby producing a cream which is spread on a carrier, the solvent removed at 90 DEG C., the sheet obtained heated to cause gelling, then cooled, the sodium chloride leached out and the sheet dried. Solvents specified are white spirit and naphtha. Specifications 565,022, 727,679 and 844,801 are referred to.ALSO:Microporous sheets, are obtained by mixing polyvinyl chloride powder of up to 150 m diameter, a plasticizer and powdered sodium chloride in an amount at least equal to one and a half to not more than four times the weight of the polyvinyl chloride, the particle size of the sodium chloride for a sheet of 1 to 5 mils thickness being 5 to 10m , and for a sheet of 6 mils thickness and above, 10 to 80 m , and a volatile solvent for the plasticizer which is not a solvent for the polyvinyl chloride, thereby producing a cream which is spread on a carrier, the solvent removed at 90 DEG C., the sheet obtained heated to cause gelling, then cooled, the sodium chloride leached out and the sheet dried. The specified solvents are white spirit or naphtha. The gelling results in the production of a pervious sheet so that the salt is readily leached out. Specifications 565,022, 727,679 and 844,801 are referred to.
ES0249096A 1958-05-02 1959-04-30 Improvements in porous plastic sheeting Expired ES249096A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1401658A GB884232A (en) 1958-05-02 1958-05-02 Improvements in porous plastic sheeting

Publications (1)

Publication Number Publication Date
ES249096A1 true ES249096A1 (en) 1959-10-01

Family

ID=10033459

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0249096A Expired ES249096A1 (en) 1958-05-02 1959-04-30 Improvements in porous plastic sheeting

Country Status (7)

Country Link
BE (1) BE578274A (en)
CH (1) CH371255A (en)
DE (1) DE1292391B (en)
DK (1) DK104590C (en)
ES (1) ES249096A1 (en)
GB (1) GB884232A (en)
NL (1) NL238828A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278624A (en) * 1978-10-25 1981-07-14 Kornylak Corporation Fluid film continuous processing method and apparatus
IE57552B1 (en) * 1983-05-20 1992-12-16 Unifoam Ag Improvements in or relating to the production of polymeric foam
US9790343B2 (en) 2008-06-12 2017-10-17 Avery Dennison Corporation Porous material and method for producing the same
EP2888059B1 (en) * 2012-08-21 2018-10-10 Avery Dennison Corporation System for making porous films, fibers, spheres, and other articles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1008699A (en) * 1948-05-13 1952-05-20 Manufacturing process for products based on synthetic resin and new products resulting therefrom
US2707201A (en) * 1951-05-05 1955-04-26 Richardson Co Porous storage battery separator and method of making
BE521527A (en) * 1952-07-17 1900-01-01
GB728600A (en) * 1952-07-17 1955-04-20 Pritchett & Gold & E P S Co Improvements relating to the manufacture of micro-porous material
US2809900A (en) * 1954-08-04 1957-10-15 Goodrich Co B F Article of manufacture containing plastic and method for making the same

Also Published As

Publication number Publication date
DK104590C (en) 1966-06-06
NL238828A (en)
GB884232A (en) 1961-12-13
DE1292391B (en) 1969-04-10
BE578274A (en) 1959-08-17
CH371255A (en) 1963-08-15

Similar Documents

Publication Publication Date Title
ES236355A1 (en) Method for producing porous films from a polyvinyl chloride plastisol containing water as the blowing agent
ES249096A1 (en) Improvements in porous plastic sheeting
IL30273A0 (en) Process for the production of microporous films,membranes of similar sheets of high polymers and products obtained thereby
ES416878A1 (en) Latex for forming non-gelling vulcanizable solid foam
CA565916A (en) Method for making cellular materials from vinyl chloride polymer plastisol using water and a borohydride as a blowing agent
CA815086A (en) Plastics dispersions with light-sensitive structural units and process for their manufacture
CA574090A (en) Polymeric aminoalkyl vinyl ethers, derivatives thereof, and process for producing them
CA552914A (en) Microporous films and their production
CA559242A (en) Process and apparatus for producing dehydrated pellets
AU1025055A (en) Method of producing fireproof plastics, and fireproof plastic materials obtained thereby
CA529363A (en) Polymeric material structures and method for producing the same
AU235286B2 (en) Improvements in vinyl polymer monofilaments and in processes for producing them
CA518991A (en) Production of extruded sheets, films and the like of organic thermoplastic material
AU214810B2 (en) Process for the manufacture of blown, cellular polymeric materials, and a ternary mixture for use in carrying out the process
CA510945A (en) Method of dimensionally stabilizing oriented vinylidene chloride polymer articles
CA838215A (en) Vinylidene chloride copolymer latices and process for preparing same
AU4743659A (en) Improvements in vinyl polymer monofilaments and in processes for producing them
AU217058B2 (en) Method of pelletizing air entrained clay
AU2317470A (en) Process for making improved high vinylidene chloride polymer content coating resins
ES373079A3 (en) Procedure for obtaining breathable artificial leather. (Machine-translation by Google Translate, not legally binding)
AU287894B2 (en) Process for the production of polymers and copolymers of cyclic oxyalkylenes
AU2357056A (en) Process for the manufacture of blown, cellular polymeric materials, and a ternary mixture for use in carrying out the process
CA656565A (en) Process for the production of polyvinyl chloride and copolymers of vinyl chloride
CA665804A (en) Vinyl chloride polymers and process for preparing same
AU241019B2 (en) Method of making film material, sheeting or the like from synthetic resins or the like