Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-05-17
2005-05-17
Raymond, Richard L. (Department: 1624)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S525000, C525S535000, C528S419000, C549S561000, C549S562000, C558S243000
Reexamination Certificate
active
06894116
ABSTRACT:
A toughener comprising a trithiocarbonate polymer having an epoxy end group is described which is utilized with various thermosettable polymers such as epoxy, polyurethane, and the like. A toughened composition is made by curing the thermosettable polymer and the toughener utilizing various curing agents.
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Egan David Richard
Filla Deborah Susan
Lai John Ta-Yuan
Lepilleur Carole Angele
Weber Carl Duane
Dunlap Thoburn T.
Hudak, Shunk & Farine Co. L.P.A.
Noveon IP Holdings Corp.
Raymond Richard L.
Tucker Zachary C.
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