GB1210504A - Process for the production of microporous, steam-pervious sheet structures - Google Patents

Process for the production of microporous, steam-pervious sheet structures

Info

Publication number
GB1210504A
GB1210504A GB5284367A GB5284367A GB1210504A GB 1210504 A GB1210504 A GB 1210504A GB 5284367 A GB5284367 A GB 5284367A GB 5284367 A GB5284367 A GB 5284367A GB 1210504 A GB1210504 A GB 1210504A
Authority
GB
United Kingdom
Prior art keywords
solvent
polymer
temperature
solution
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
GB5284367A
Other languages
English (en)
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1210504A publication Critical patent/GB1210504A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20Shaping 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
    • B29C67/202Shaping 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/05Elimination by evaporation or heat degradation of a liquid phase
    • C08J2201/0502Elimination by evaporation or heat degradation of a liquid phase the liquid phase being organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/04Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic

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)
GB5284367A 1966-11-22 1967-11-21 Process for the production of microporous, steam-pervious sheet structures Expired GB1210504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0050722 1966-11-22

Publications (1)

Publication Number Publication Date
GB1210504A true GB1210504A (en) 1970-10-28

Family

ID=7104017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5284367A Expired GB1210504A (en) 1966-11-22 1967-11-21 Process for the production of microporous, steam-pervious sheet structures

Country Status (7)

Country Link
AT (1) AT286653B (enExample)
BE (1) BE706920A (enExample)
CH (1) CH481971A (enExample)
DE (1) DE1694085A1 (enExample)
GB (1) GB1210504A (enExample)
NL (1) NL6715596A (enExample)
SE (1) SE338437B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308145A (en) * 1976-03-19 1981-12-29 United States Of America Relatively thick polycarbonate membranes for use in hemodialysis
US4728542A (en) * 1985-06-19 1988-03-01 Bayer Aktiengesellschaft Ionically modified pur spreading pastes and their use
US4743470A (en) * 1985-03-02 1988-05-10 Bayer Aktiengesellschaft Spreading pastes containing polyurethane plastics and a process for the production of polyurethane coatings permeable to water vapor
US5177141A (en) * 1988-10-22 1993-01-05 Bayer Aktiengesellschaft Coating materials containing pur dispersions and solvents and their use for the preparation of water vapor permeable pur coatings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308145A (en) * 1976-03-19 1981-12-29 United States Of America Relatively thick polycarbonate membranes for use in hemodialysis
US4743470A (en) * 1985-03-02 1988-05-10 Bayer Aktiengesellschaft Spreading pastes containing polyurethane plastics and a process for the production of polyurethane coatings permeable to water vapor
US4728542A (en) * 1985-06-19 1988-03-01 Bayer Aktiengesellschaft Ionically modified pur spreading pastes and their use
US5177141A (en) * 1988-10-22 1993-01-05 Bayer Aktiengesellschaft Coating materials containing pur dispersions and solvents and their use for the preparation of water vapor permeable pur coatings

Also Published As

Publication number Publication date
DE1694085A1 (de) 1971-07-29
BE706920A (enExample) 1968-05-22
NL6715596A (enExample) 1968-05-24
SE338437B (enExample) 1971-09-06
CH481971A (de) 1969-11-30
AT286653B (de) 1970-12-28

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees