Aromatic polyformals

Details Aromatic polyformals Aromatic polyformals

C - Chemistry, Metallurgy

08

G

402/320, 402/33

C08G 65/40 (2006.01)

Patent

CA 1218791

ABSTRACT This invention is directed to novel aromatic polyformals comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula Image (I) and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula Image (II) in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula -CH2- (III) wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO2, S or a direct bond, with the proviso that when R1 is SO2 then repeating unit (II) is not the same as repeating unit (I). The invention is also directed to a process for preparing the novel aromatic polyformals. The aromatic polyformals have utility as a molded plastic material, adhesive, sealant and the like. D-13,842

451999

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