Linear liquid polythioethers

Details Linear liquid polythioethers Linear liquid polythioethers

C - Chemistry, Metallurgy

08

G

260/468, 260/634

C08G 75/00 (2006.01) C08G 18/52 (2006.01) C08G 59/30 (2006.01) C08G 65/34 (2006.01) C08G 65/48 (2006.01) C08G 75/02 (2006.01) C08G 75/12 (2006.01) C08L 63/00 (2006.01) C08L 71/00 (2006.01)

Patent

CA 1178601

Abstract of the Disclosure: A non-crystallizing water, solvent, fuel and temperature resistant linear, liquid polythioether con- taining no carbonyl groups and having the formula Image wherein each of R1, R2, R3 and R4 is hydrogen or lower alkyl with the provision that a sufficient number of R1, R2, R3 and/or R4 are lower alkyl in said polymeric back- bone to render said backbone non-crystallizing; X is a divalent organic radical selected from -CH-CH2-, -CH2-CH2-CH2-CH2-, -CH2-CH2-5-CH2-CH2-, or CH2-CH2-O-CH2-CH2-; n is 15 to 200, p is 0 or 1 and B is a terminating radical which does not substantially reduce the water, solvent and fuel resistance, said terminating radical being either a chemically non-reactive radical or a vulcanizable radical curable to an elastomerlc sealant.

391545

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