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US 6,787,605 B2Granted
Composition of polyphenylene ether, polystyrene and curable epoxy
Assignee3M Innovative Properties Company
InventorsRobert Steven Clough, Mario Alberto Perez
Life of this patent
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Abstract
A curable melt blended composition and a method of making the composition by melt blending a thermoplastic polymer comprising polyphenylene ether (PPE) polymer and a polystyrene polymer, preferably high impact polystyrene (HIPS), and optionally a compatiblizer, with an uncured epoxy component, comprising a curable epoxy and an epoxy curing agent, at a temperature greater than 150° C. and without addition of solvent wherein the epoxy component of the resulting curable melt blended composition remains substantially uncured.
Claims8
A curable melt blended composition comprising:
- a) 60 to 99.9 weight percent of a thermoplastic polymer comprising
- 1) 1-99 weight percent of polyphenylene ether (PPE) polymer, and
- 2) 1-99 weight percent of a polystyrene polymer;
- and
- b) 0.1 to 40 weight percent of an epoxy component, which is substantially uncured, comprising
- 1) a curable epoxy, and
- 2) an effective amount of curing agent for said curable epoxy, wherein the thermoplastic polymer (a) and epoxy component (b) are melt blended at a temperature of greater than 150° C. to a substantially uncured state.
4 more elements
Dependencies are inferred from the claim text.