Thermally foaming microsphere, method for production thereof, use thereof, composition containing the same, and article

A manufacturing method and thermal foaming technology, which are applied in the preparation of microspheres, microcapsule preparations, chemical instruments and methods, etc., can solve the problems of shrinkage, difficulty in controlling the foaming ratio, and difficulty in fully increasing the processing temperature of foaming molding. , to achieve less shrinkage, inhibit early foaming, and improve the effect of foaming start temperature
CN101014679AInactive Publication Date: 2007-08-08KUREHA KAGAKU KOGYO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUREHA KAGAKU KOGYO KK
Publication Date
2007-08-08
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

A thermally forming microsphere having a structure in which a foaming agent is encapsulated in an outer shell formed from a polymer, wherein said foaming agent comprises isododecane; and a method for producing a thermally forming microsphere by a suspension polymerization method using a foaming agent containing a polymerizable monomer and isododecane.
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Description

technical field

[0001] The present invention relates to a thermally foamable microsphere having a structure in which a foaming agent is enclosed in a shell made of a polymer, and a method for producing the same. Further, the present invention relates to the use of heat-expandable microspheres as a heat-expandable foaming agent, a composition containing heat-expandable microspheres and a polymer material, and a composition containing heat-expandable microspheres for thermal expansion. Items of foam particles obtained by foaming. Background technique

[0002] Heat-expandable microspheres, also known as heat-expandable microcapsules, are formed by microencapsulating a volatile liquid blowing agent with a polymer. Thermally foamable microspheres are generally produced by suspension polymerization of a polymerizable mixture containing at least one polymerizable monomer and a volatile blowing agent in an aqueous dispersion medium. As the polymerization reaction proceeds, a shell...

Claims

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