C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/349
C08G 75/12 (2006.01) C08G 65/34 (2006.01) C08G 65/40 (2006.01) C08J 3/24 (2006.01) C08L 71/00 (2006.01)
Patent
CA 1065999
CANADIAN PATENT APPLICATION OF EUGENE YUE CHIEH CHANG AND ROBERT SAXON FOR POLYMERIC REACTION PRODUCTS OF THIODIETHANOL AND DIPHENOLS ABSTRACT OF THE DISCLOSURE A vulcanizable elastomer composition is provided which comprises a copolymer represented by the formula: H ? OG ? x OH wherein ? OG ? comprises randomly alternating structural units (I), (II), and optionally (III) ? OC2H4SC2H4 ? (I) ? OR ? (II) ? OR? (III) wherein R represents the residue remaining on removal of two phenolic hydroxyl groups from a diphenolic compound and R' represents the residue remaining on removal of two hydroxyl groups from an aliphatic diol; said copolymer characterized in that the ratio of structural units (I) to structural units (II), or optionally, to the total of structural units (II) and (III), is not less than 1:1, and further characterized in that up to about 10 mole percent, based on total number of struct- ural units OG of structural units (III), when present in said copolymer, contain external unsaturation having an allylic hydron atom; and x is an integer sufficient to provide a molecular weight of at least about 8000.
233431
Chang Eugene Y.c.
Saxon Robert
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