Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting an...
Reexamination Certificate
2008-01-29
2008-01-29
Oh, Taylor Victor (Department: 1625)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Compound of indeterminate structure, prepared by reacting an...
C508S464000, C528S044000, C528S059000, C528S065000, C528S367000, C521S155000
Reexamination Certificate
active
07323435
ABSTRACT:
Fluorinated oligourethanes, having number average molecular weight lower than or equal to 9,000, having a branched structure, formed of the following monomers and macromers:a) aliphatic, cycloaliphatic or aromatic polyisocyanates,b) heterofunctional hydrogenated monomers having general formula:in-line-formulae description="In-line Formulae" end="lead"?X0—(CR1AR2A)b—Y0 (Ib)in-line-formulae description="In-line Formulae" end="tail"?one or more of the following compounds:c) bifunctional hydroxyl (per)fluoropolyethers (PFPE diols) having number average molecular weight in the range 400-3,000,e) monofunctional hydroxyl (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes (e′), having number average molecular weight in the range 300-1,000,and optionally the following compounds:d) heterofunctional monomers,dI) hydrogen-active compounds, capable to form bonds with the NCO functions stable at the hydrolysis but weak at heat.
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Levi Marinella
Trombetta Tania
Turri Stefano
Arent & Fox LLP
Ausimont S.p.A.
Oh Taylor Victor
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