Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2009-05-20
2011-12-27
Egwim, Kelechi (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S209000, C524S457000, C524S544000, C524S765000
Reexamination Certificate
active
08084562
ABSTRACT:
To provide a method for producing a polymer-dispersed polyol which has high compatibility with a polyol for rigid polyurethane foams and is excellent in storage stability and which provides good heat-insulating performance when it is formed into a rigid polyurethane foam. Also a method for producing a polymer-dispersed polyol for rigid polyurethane foams, having polymer particles dispersed in a polyol, which comprises polymerizing a monomer having a polymerizable unsaturated group in a polyol (X), wherein the polyol (X) contains a polyether polyol (Y) having an oxyethylene group content of at least 10 mass %, and the monomer having a polymerizable unsaturated group contains a fluorinated acrylate or a fluorinated methacrylate.
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Adachi Yasuhito
Hayashi Tomohiro
Sato Hisashi
Suzuki Chitoshi
Wada Hiroshi
Asahi Glass Company Limited
Egwim Kelechi
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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