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US 4,283,503 AGranted
Polyphenylene oxide blending
AssigneePhillips Petroleum Company
InventorRoy F. Wright
Life of this patent
Estimating the term…
Abstract
Polyphenylene oxide is blended with conjugated diene polymer by first producing a polymer mixture of polyphenylene oxide and conjugated diene polymer by solution blending and then mechanically blending the so produced masterbatch with the conjugated diene polymer.
Claims5
A process for blending polyphenylene oxide and a conjugated diene polymer comprising mechanically blending two-components (a) and (b) namely
- (a) a dry initial mixture of polyphenylene oxide and a first conjugated diene polymer, which mixture has been obtained by solution blending polyphenylene oxide and said first conjugated diene polymer, and
- (b) a second conjugated diene polymer
- to form a final mixture of polyphenylene oxide and conjugated diene polymer, wherein said first and said second conjugated diene polymers can be the same or different.
Dependencies are inferred from the claim text.