Hydroxyl-containing liquid polymers and process for...

Details Hydroxyl-containing liquid polymers and process for... Hydroxyl-containing liquid polymers and process for...

C - Chemistry, Metallurgy

08

F

260/480, 260/306

C08F 36/00 (2006.01) C08F 2/38 (2006.01)

Patent

CA 1101869

-22- ABSTRACT OF THE DISCLOSURE Hydroxyl-terminated liquid polymers having an aliphatic polymeric backbone and sulfide linkages near the terminal portions of the polymer molecule are prepared by polyermizing (1) at least one vinylidene monomer having at least one terminal CH2=C< group per monomer molecule, together with (2) a mixture of at least one hydroxyl-con- taining disulfide and at least one hydroxyl-containing trisulfide. Use of the above disulfide-trisulfide mixture permits viscosity control during polymerization with sub- stantially less disulfide required than if the disulfide alone were used, and the resulting polymers have less odor and discolor less upon heating than if the disulfide alone were used.

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