GB1294406A - Porous compositions and process for making thereof - Google Patents

Porous compositions and process for making thereof

Info

Publication number
GB1294406A
GB1294406A GB1385370A GB1385370A GB1294406A GB 1294406 A GB1294406 A GB 1294406A GB 1385370 A GB1385370 A GB 1385370A GB 1385370 A GB1385370 A GB 1385370A GB 1294406 A GB1294406 A GB 1294406A
Authority
GB
United Kingdom
Prior art keywords
polymer
article
block
solvent
dichlorobenzene
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
GB1385370A
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.)
Polysar Ltd
Polymer Corp
Original Assignee
Polysar Ltd
Polymer 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 Polysar Ltd, Polymer Corp filed Critical Polysar Ltd
Publication of GB1294406A publication Critical patent/GB1294406A/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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • B29C2071/0036—Extracting, degassing, removing gases from moulded articles
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Abstract

1294406 Open - celled polymeric articles POLYMER CORP Ltd 23 March 1970 [5 May 1969] 13853/70 Heading C3C An article having a porous cellular structure with cell size of not more than 1000 microns is made by freezing a solution of at least one non- flowable polymer dissolved in an organic solvent capable of freezing to a crystalline state, the solution being subjected to a compacting force during freezing whereby a compacted solidified composition is formed having the shape of the article, the solidified composition having homogeneously dispersed therein the solvent in crystalline form, exposing the composition to a pressure below the pressure of the triple point to a temperature below the m.p. of the solvent, and removing by sublimation all the solvent. The polymer may be a thermoplastic polymer having a second order transition point above -25‹ C., a crystalline polymer containing more than 10% crystallinity at -25‹ C. or a high molecular weight amorphous polymer free of cold flow. The article may be in the form of a sheet or filter element and may consist of interconnecting cells and of walls constituting less than 0À8 volume/volume of the article. The polymers and solvents used in the examples were (1) polyisoprene in benzene; (2) a block copolymer of the type ABA where A was a poly-(alpha-methyl styrene) block and B is a polybutadiene block, in benzene; (3) as (2) and also a block copolymer of the SBA type where S is a polystyrene block and B and A are as before, in benzene; (4) styrene/acrylonitrile copolymer in 1,4-dichlorobenzene; (5) a phenol formaldehyde resin in 1,4-dichlorobenzene; and (6) a mixture of polyvinyl chloride, a graft polymer of acrylonitrile, butadiene and styrene, and a rubbery butadiene/acrylonitrile copolymer in 1,4-dichlorobenzene.
GB1385370A 1969-05-05 1970-03-23 Porous compositions and process for making thereof Expired GB1294406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA50500 1969-05-05

Publications (1)

Publication Number Publication Date
GB1294406A true GB1294406A (en) 1972-10-25

Family

ID=4085207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1385370A Expired GB1294406A (en) 1969-05-05 1970-03-23 Porous compositions and process for making thereof

Country Status (3)

Country Link
DE (1) DE2017904A1 (en)
FR (1) FR2046196A5 (en)
GB (1) GB1294406A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008115848A1 (en) * 2007-03-19 2008-09-25 University Of Massachusetts Method of producing nanopatterned templates
US8211737B2 (en) 2008-09-19 2012-07-03 The University Of Massachusetts Method of producing nanopatterned articles, and articles produced thereby
US8247033B2 (en) 2008-09-19 2012-08-21 The University Of Massachusetts Self-assembly of block copolymers on topographically patterned polymeric substrates
US8518837B2 (en) 2008-09-25 2013-08-27 The University Of Massachusetts Method of producing nanopatterned articles using surface-reconstructed block copolymer films
US9156682B2 (en) 2011-05-25 2015-10-13 The University Of Massachusetts Method of forming oriented block copolymer line patterns, block copolymer line patterns formed thereby, and their use to form patterned articles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD100484A1 (en) * 1971-12-24 1973-09-20
DE3041421C2 (en) * 1979-03-29 1987-03-12 Showa Denko Kk Process for the production of both an easily moldable mass from an acetylene high polymer and a porous acetylene high polymer
DE4416938B4 (en) * 1994-05-13 2004-08-26 Dr.Ing.H.C. F. Porsche Ag Process for reducing emissions of volatile substances

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008115848A1 (en) * 2007-03-19 2008-09-25 University Of Massachusetts Method of producing nanopatterned templates
US8361337B2 (en) 2007-03-19 2013-01-29 The University Of Massachusetts Method of producing nanopatterned templates
US8211737B2 (en) 2008-09-19 2012-07-03 The University Of Massachusetts Method of producing nanopatterned articles, and articles produced thereby
US8247033B2 (en) 2008-09-19 2012-08-21 The University Of Massachusetts Self-assembly of block copolymers on topographically patterned polymeric substrates
US8581272B2 (en) 2008-09-19 2013-11-12 The University Of Massachusetts Method of producing nanopatterned articles, and articles produced thereby
US9018649B2 (en) 2008-09-19 2015-04-28 The University Of Massachusetts Method of producing nanopatterned articles, and articles produced thereby
US8518837B2 (en) 2008-09-25 2013-08-27 The University Of Massachusetts Method of producing nanopatterned articles using surface-reconstructed block copolymer films
US9358750B2 (en) 2008-09-25 2016-06-07 The University Of Massachusetts Nanopatterned articles produced using surface-reconstructed block copolymer films
US9636887B2 (en) 2008-09-25 2017-05-02 The University Of Massachusetts Nanopatterned articles produced using reconstructed block copolymer films
US9156682B2 (en) 2011-05-25 2015-10-13 The University Of Massachusetts Method of forming oriented block copolymer line patterns, block copolymer line patterns formed thereby, and their use to form patterned articles
US9718094B2 (en) 2011-05-25 2017-08-01 Unist Academy-Industry Method of forming oriented block copolymer line patterns, block copolymer line patterns formed thereby, and their use to form patterned articles

Also Published As

Publication number Publication date
FR2046196A5 (en) 1971-03-05
DE2017904A1 (en) 1970-11-26

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Legal Events

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