WO2010049511A3 - A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form - Google Patents

A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form Download PDF

Info

Publication number
WO2010049511A3
WO2010049511A3 PCT/EP2009/064329 EP2009064329W WO2010049511A3 WO 2010049511 A3 WO2010049511 A3 WO 2010049511A3 EP 2009064329 W EP2009064329 W EP 2009064329W WO 2010049511 A3 WO2010049511 A3 WO 2010049511A3
Authority
WO
WIPO (PCT)
Prior art keywords
foam
auxetic
foams
conversion
manufacture
Prior art date
Application number
PCT/EP2009/064329
Other languages
French (fr)
Other versions
WO2010049511A4 (en
WO2010049511A2 (en
Inventor
Joseph Noel Grima
Daphne Attard
Ruben Gatt
Original Assignee
University Of Malta
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 University Of Malta filed Critical University Of Malta
Priority to GB1107220.4A priority Critical patent/GB2480905B/en
Publication of WO2010049511A2 publication Critical patent/WO2010049511A2/en
Publication of WO2010049511A3 publication Critical patent/WO2010049511A3/en
Publication of WO2010049511A4 publication Critical patent/WO2010049511A4/en

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
    • 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
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, 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
    • 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
    • B29C44/35—Component parts; Details or accessories
    • B29C44/355—Characteristics of the foam, e.g. having particular surface properties or structure
    • B29C44/357—Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The present invention relates to a process which provides a route to convert conventional foams to auxetic foams as an alternative to existing thermomechanicalprocesses[ WO88 /00523 ]. The present process involves taking the said conventional foam, exposing it to a correspondingly suitable solvent, removing excess solvent, compressing it, drying the foam in the compressed state only releasing it after the drying process is complete. The solvent can also be used in a process to reconvert the auxetic foam, or any other foam made auxetic by any other process to a conventional foam. This process involves exposing the foam to a suitable solvent, pulling it (sometimes not necessary), and drying the foam.
PCT/EP2009/064329 2008-10-30 2009-10-29 A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form WO2010049511A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1107220.4A GB2480905B (en) 2008-10-30 2009-10-29 A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MT4236 2008-10-30
MTP4236 2008-10-30

Publications (3)

Publication Number Publication Date
WO2010049511A2 WO2010049511A2 (en) 2010-05-06
WO2010049511A3 true WO2010049511A3 (en) 2010-07-22
WO2010049511A4 WO2010049511A4 (en) 2010-09-10

Family

ID=42060603

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/064329 WO2010049511A2 (en) 2008-10-30 2009-10-29 A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form

Country Status (2)

Country Link
GB (1) GB2480905B (en)
WO (1) WO2010049511A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110951108B (en) * 2019-10-25 2021-05-28 中国科学院长春应用化学研究所 Method for converting polymer negative Poisson's ratio foam into positive Poisson's ratio foam and foam low-cost transportation method

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105965930B (en) * 2016-06-20 2018-07-03 苏州芳磊蜂窝复合材料有限公司 A kind of interior cellular preparation method of hexagonal negative poisson's ratio
EP3681688B1 (en) * 2017-09-13 2021-12-29 Basf Se Auxetic polyurethane and melamine foams by triaxial compression
USD870479S1 (en) 2017-12-05 2019-12-24 Steelcase Inc. Chair
USD869872S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chair
USD869889S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chairback
USD869890S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chairback
USD907383S1 (en) 2019-05-31 2021-01-12 Steelcase Inc. Chair with upholstered back
USD907935S1 (en) 2019-05-31 2021-01-19 Steelcase Inc. Chair
NL2025349B1 (en) * 2020-04-15 2021-10-26 Smart Mat Limited Method for the synthesis of an auxetic polyurethane foam with a defined cell structure and auxetic polyurethane foam obtainable by the method
CN115521596B (en) * 2022-10-10 2023-06-23 吉林省博砚科技有限公司 Polyhydroxyalkanoate auxetic foam and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007052054A1 (en) * 2005-11-04 2007-05-10 Auxetic Technologies Limited A process for the preparation of auxetic foams

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007052054A1 (en) * 2005-11-04 2007-05-10 Auxetic Technologies Limited A process for the preparation of auxetic foams

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FRISS E A ET AL: "Negative Poisson's ratio polymeric and metallic foams", JOURNAL OF MATERIALS SCIENCE, SPRINGER NETHERLANDS, NL LNKD- DOI:10.1007/BF00551939, vol. 23, 1 January 1988 (1988-01-01), pages 4406 - 4414, XP002515796, ISSN: 0022-2461 *
GRIMA J. N. ET AL: "A Novel Process for the Manufacture of Auxetic Foams andfor Their re-Conversion to Conventional Form", vol. 11, no. 7, 13 May 2009 (2009-05-13), WILEY-VCH Verlag GmbH & Co. KGaA Weinheim, pages 533 - 535, XP002577220, Retrieved from the Internet <URL:http://www3.interscience.wiley.com/cgi-bin/fulltext/122382220/PDFSTART> [retrieved on 20100403] *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110951108B (en) * 2019-10-25 2021-05-28 中国科学院长春应用化学研究所 Method for converting polymer negative Poisson's ratio foam into positive Poisson's ratio foam and foam low-cost transportation method

Also Published As

Publication number Publication date
GB2480905A (en) 2011-12-07
GB201107220D0 (en) 2011-06-15
GB2480905B (en) 2013-08-14
WO2010049511A4 (en) 2010-09-10
WO2010049511A2 (en) 2010-05-06

Similar Documents

Publication Publication Date Title
WO2010049511A3 (en) A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form
WO2006124937A3 (en) Selectively-expandable bone scaffold
SG166091A1 (en) Method for producing isocyanates
EP1950197A4 (en) Process for producing pentaerythritol mercaptocarboxylic acid ester, pentaerythritol mercaptocarboxylic acid ester obtained by the same, and use thereof
TW200942590A (en) Foamed adhesive, more particularly pressure-sensitive adhesive, process for the production and also the use thereof
WO2010009879A3 (en) Methods for producing paricalcitol
WO2009143823A3 (en) Halogenated polysilane and plasma-chemical process for producing the same
WO2009060009A3 (en) Expanded graphite and method for producing the same
WO2006051574A3 (en) Improved compression strength cement
WO2008153179A1 (en) Multipotent progenitor cell derived from adipose tissue
TW200642829A (en) Method for preparing a microporous polyolefin membrane and the microporous polyolefin membrane
AR061933A1 (en) PROCEDURE FOR MANUFACTURING BROMIDE OF 3 (R) - (2-HIDROXI-2,2-DITIEN-2-ILACETOXI) -1- (3-PHENOXIPROPIL) -1-AZONIABICICLO [2.2.2] OCTANO
EP1894973A4 (en) Process for producing pvp-fullerene complex and aqueous solution thereof
WO2010021738A3 (en) Method for producing double-crosslinked collagen
EP2163310A3 (en) Method for purifying quench water and scrubbing water from MTO (methanol-to-olefin process) by mini-hydrocyclone and apparatus used for same
PL1824585T3 (en) Process for the dehydration of gases
WO2008011433A3 (en) Styrenated terpene resin as well as methods of making and using the same
WO2009098073A8 (en) Method and device for the production of molded bodies
IL180311A0 (en) Process for the preparation of 4,4-difluoro-3-oxobutanoic acid esters
EP1816169A4 (en) Flame-retardant resin composition, process for producing the same, method of molding the same
DE602004019853D1 (en) Process for producing an alkaline battery
WO2009084023A3 (en) Amorphous ramelteon and process for the preparation thereof
WO2013078575A8 (en) New preparation method of 5,7-pregnadiene-3,20-dione-diethyl ketal
DE602005021461D1 (en) PROCESS FOR PREPARING CABERGOLIN
WO2009147002A3 (en) Process for producing electrolytic capacitors having a low leakage current

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09807600

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 1107220

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20091029

WWE Wipo information: entry into national phase

Ref document number: 1107220.4

Country of ref document: GB

122 Ep: pct application non-entry in european phase

Ref document number: 09807600

Country of ref document: EP

Kind code of ref document: A2