Microspheres

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United States of America Patent

PATENT NO 9902829
SERIAL NO

14402958

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Abstract

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The present invention relates to thermally expandable thermoplastic microspheres comprising a polymer shell made from ethylenically unsaturated monomers encapsulating a propellant, said ethylenically unsaturated monomers comprising from 21 to 80 wt % of methacrylamide and from 20 to 70 wt % methacrylonitrile, the total amount of methacrylamide and methacrylonitrile being from 70 to 100 wt % of the ethylenically unsaturated monomers. Furthermore, the invention relates to production and use of such microspheres.

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Patent Owner(s)

Patent OwnerAddress
AKZO NOBEL CHEMICALS INTERNATIONAL B V6824 BM ARNHEM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nordin, Ove Kvissleby, SE 10 119

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