WO2000037547A3 - Expandable polymeric microspheres - Google Patents

Expandable polymeric microspheres Download PDF

Info

Publication number
WO2000037547A3
WO2000037547A3 PCT/US1999/029358 US9929358W WO0037547A3 WO 2000037547 A3 WO2000037547 A3 WO 2000037547A3 US 9929358 W US9929358 W US 9929358W WO 0037547 A3 WO0037547 A3 WO 0037547A3
Authority
WO
WIPO (PCT)
Prior art keywords
microspheres
microballoons
microsphere
heated
functional groups
Prior art date
Application number
PCT/US1999/029358
Other languages
French (fr)
Other versions
WO2000037547A2 (en
Inventor
David S Soane
Michael R Houston
Original Assignee
Zms Llc
David S Soane
Michael R Houston
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 Zms Llc, David S Soane, Michael R Houston filed Critical Zms Llc
Priority to AU39968/00A priority Critical patent/AU3996800A/en
Publication of WO2000037547A2 publication Critical patent/WO2000037547A2/en
Publication of WO2000037547A3 publication Critical patent/WO2000037547A3/en
Priority to US09/877,992 priority patent/US20010044477A1/en
Priority to US10/235,418 priority patent/US6638984B2/en
Priority to US10/235,367 priority patent/US6617364B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
    • 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
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/232—Forming foamed products by sintering expandable particles
    • 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
    • C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/22—Expandable microspheres, e.g. Expancel®

Abstract

The present invention is directed to thermo-expandable microspheres and to the expanded microballoons, microcellular foam or foamed composite material that results upon heating the microspheres. The thermo-expandable microsphere of the present invention is characterized by having a polymeric wall surrounding one or more pockets or particles of blowing agent or propellant within the microsphere. The polymeric wall may have reactive functional groups on its surface to give a fusible microsphere. When the microspheres are heated, they expand to form microballoons comprising polymeric shells surrounding one or more internal gaseous voids, and when the microspheres are expanded while in contact with each other, a microcellular foam may be formed. The foam consists of a plurality of microballoons fused together, optionally aided by functional groups present on the surface of the heated microspheres that act to crosslink the material. When microspheres are mixed with a matrix, which can optionally react with functional groups on the microsphere surface, and the resulting combination is heated, the microspheres expand to give a foamed composite material in which the microballoons may be fused or chemically crosslinked to the matrix.
PCT/US1999/029358 1998-12-10 1999-12-10 Expandable polymeric microspheres WO2000037547A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU39968/00A AU3996800A (en) 1998-12-10 1999-12-10 Expandable polymeric microspheres, their method of production, and uses and products thereof
US09/877,992 US20010044477A1 (en) 1998-12-10 2001-06-08 Expandable polymeric microspheres, their method of production, and uses and products thereof
US10/235,418 US6638984B2 (en) 1998-12-10 2002-09-05 Microcellular foams, their method of production, and uses and products thereof
US10/235,367 US6617364B2 (en) 1998-12-10 2002-09-05 Method for synthesizing thermo-expandable polymeric microspheres

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11177798P 1998-12-10 1998-12-10
US11177898P 1998-12-10 1998-12-10
US60/111,777 1998-12-10
US60/111,778 1998-12-10

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/877,992 Continuation US20010044477A1 (en) 1998-12-10 2001-06-08 Expandable polymeric microspheres, their method of production, and uses and products thereof

Publications (2)

Publication Number Publication Date
WO2000037547A2 WO2000037547A2 (en) 2000-06-29
WO2000037547A3 true WO2000037547A3 (en) 2000-11-09

Family

ID=26809221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/029358 WO2000037547A2 (en) 1998-12-10 1999-12-10 Expandable polymeric microspheres

Country Status (2)

Country Link
AU (1) AU3996800A (en)
WO (1) WO2000037547A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010044477A1 (en) 1998-12-10 2001-11-22 Soane David S. Expandable polymeric microspheres, their method of production, and uses and products thereof
US6545066B1 (en) * 2000-11-28 2003-04-08 United States Gypsum Company Lightweight ready-mix joint compound
JP2004536172A (en) 2001-05-25 2004-12-02 アパーチェ・プロダクツ・カンパニー Expandable microspheres and methods for foam insulation
GB2426703B (en) * 2005-05-31 2007-09-19 Malvern Cosmeceutics Ltd Compositions
CN101827911B (en) * 2007-10-16 2013-03-27 松本油脂制药株式会社 Heat-expandable microspheres, process for production of the same and uses thereof
ES2395553B1 (en) * 2011-06-22 2013-12-26 Consejo Superior De Investigaciones Científicas (Csic) PROCEDURE FOR OBTAINING MICRO-, SUBMICRO- AND NANOCAPSULES BASED ON PROTEINS OF MILK.
CA2869967A1 (en) * 2012-04-13 2013-10-17 Trustees Of Tufts College Methods and compositions for preparing a silk microsphere
ES2938007T3 (en) 2018-11-13 2023-04-03 Nouryon Chemicals Int Bv Thermally Expandable Cellulose-Based Microspheres
WO2020152362A1 (en) 2019-01-25 2020-07-30 Nouryon Chemicals International B.V. Dialcohol cellulose-based spherical capsules
JP2023519741A (en) 2020-04-03 2023-05-12 ヌーリオン ケミカルズ インターナショナル ベスローテン フェノーツハップ Thermally expandable microspheres prepared from bio-based monomers
WO2021198487A1 (en) 2020-04-03 2021-10-07 Nouryon Chemicals International B.V. Thermally expandable microspheres prepared from bio-based monomers
KR20230002769A (en) 2020-05-20 2023-01-05 누리온 케미칼즈 인터내셔널 비.브이. Thermally expandable cellulosic microspheres with low expansion temperature
BR112023016665A2 (en) 2021-02-22 2023-11-14 Nouryon Chemicals Int Bv THERMALLY EXPANDABLE MICROSPHERES COMPRISING A POLYMER SHELL AROUND A HOLLOW CORE AND PROCESS FOR PREPARING THERMALLY EXPANDABLE MICROSPHERES
CN115233499A (en) * 2022-07-29 2022-10-25 贵州赤天化纸业股份有限公司 High-bulk household paper and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615972A (en) * 1967-04-28 1971-10-26 Dow Chemical Co Expansible thermoplastic polymer particles containing volatile fluid foaming agent and method of foaming the same
US3960583A (en) * 1974-05-02 1976-06-01 Philadelphia Quartz Company Method of preparing modified hollow, largely spherical particles by spray drying
US5055240A (en) * 1986-04-30 1991-10-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for producing microshells
JPH0919635A (en) * 1996-06-14 1997-01-21 Matsumoto Yushi Seiyaku Co Ltd Thermally expandable microcapsule excellent in heat and solvent resistance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615972A (en) * 1967-04-28 1971-10-26 Dow Chemical Co Expansible thermoplastic polymer particles containing volatile fluid foaming agent and method of foaming the same
US3960583A (en) * 1974-05-02 1976-06-01 Philadelphia Quartz Company Method of preparing modified hollow, largely spherical particles by spray drying
US5055240A (en) * 1986-04-30 1991-10-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for producing microshells
JPH0919635A (en) * 1996-06-14 1997-01-21 Matsumoto Yushi Seiyaku Co Ltd Thermally expandable microcapsule excellent in heat and solvent resistance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199713, Derwent World Patents Index; Class A14, AN 1997-139915, XP002145096 *

Also Published As

Publication number Publication date
WO2000037547A2 (en) 2000-06-29
AU3996800A (en) 2000-07-12

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