Title:
微小球
Document Type and Number:
Japanese Patent JP4478649
Kind Code:
B2
Abstract:
The invention relates to a process for the production of expandable thermoplastic microspheres comprising a step of contacting microspheres comprising a thermoplastic polymer shell encapsulating a propellant and further comprising residual monomers, with an agent reacting directly or indirectly with at least part of said residual monomers, wherein said agent is selected from the group consisting of oxo acids of sulfur, salts and derivatives thereof, comprising at least one sulfur atom having at least one free electron pair and binding three oxygen atoms. The invention further relates to novel expandable thermoplastic microspheres. The invention relates to a process for the production of expandable thermoplastic microspheres comprising a step of contacting microspheres comprising a thermoplastic polymer shell encapsulating a propellant and further comprising residual monomers, with an agent reacting directly or indirectly with at least part of said residual monomers, wherein said agent is selected from the group consisting of oxo acids of sulfur, salts and derivatives thereof, comprising at least one sulfur atom having at least one free electron pair and binding three oxygen atoms. The invention further relates to novel expandable thermoplastic microspheres.
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Inventors:
Corn, anna
Nordin, Orb
Nilsson, Stewart
Bergund, Christina
Nordin, Orb
Nilsson, Stewart
Bergund, Christina
Application Number:
JP2005518462A
Publication Date:
June 09, 2010
Filing Date:
January 14, 2004
Export Citation:
Assignee:
Akzo Nobel N.V.
International Classes:
C09K3/00; B01J13/02; B01J13/22; C08F6/00; C08F6/14; C08F6/24; C08J9/00; C08J9/22; C08J9/32; C08K3/30; C08K5/42; C08L33/12; C08L33/18; C08L33/20
Domestic Patent References:
| JP56113338A | ||||
| JP55065207A | ||||
| JP2002338618A | ||||
| JP50061375A |
Foreign References:
| US2960486 | ||||
| US3780006 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Yasuhito Suzuki
Eiji Katayama
Norio Omori
Yasuhito Suzuki