C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 183/04 (2006.01) C08F 4/38 (2006.01) C09D 5/16 (2006.01) C09D 133/08 (2006.01)
Patent
CA 2658323
Stable blend compositions composed of mixtures of polysiloxane(s) and organic polymer(s) are claimed. These polymer blends are white and opaque indicating the presence of phase separation on the micron scale. Such blends can be stored for long periods of time (years) without exhibiting evidence of macroscopic phase separation. These stable blends are achieved without substantial crosslinking as evidenced by the fact that the polymer blend is readily dissolved in a suitable organic solvent for molecular weight characterization. The stable blends of the present invention have particular utility as fouling release coatings for marine applications.
La présente invention concerne des compositions de mélanges stables constituées de mélanges de polysiloxanes et de polymères organiques. Ces mélanges de polymères sont blancs et opaques, ce qui indique la présence d'une séparation de phase de l'ordre du micromètre. De tels mélanges peuvent se stocker sur de longues périodes pouvant atteindre des années sans faire preuve de séparation de phase macroscopique. Ces mélanges s'obtiennent sans réticulation notable, comme le prouve le fait que le mélange de polymères se dissout facilement dans un solvant organique approprié servant à la caractérisation des poids moléculaires. Ces mélanges stables conviennent tout particulièrement comme revêtement refoulant les salissures dans le cas des applications marines.
Gido Samuel P.
Mays Jimmy W.
Morris Joseph P.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Fujifilm Hunt Smart Surfaces Llc
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