Low viscosity polythiol and method therefor

Details Low viscosity polythiol and method therefor Low viscosity polythiol and method therefor

C - Chemistry, Metallurgy

07

C

C07C 321/14 (2006.01) C07C 321/30 (2006.01) C07C 323/12 (2006.01) C08G 75/02 (2006.01) C08K 5/37 (2006.01) C08K 5/372 (2006.01) C08L 81/00 (2006.01)

Patent

CA 2135647

A method and composition for decreasing the viscosity of mercaptan terminated polymers. The method involves adding thiol terminated trithio-orthoformate polycondensates to the mercaptan terminated polymer to achieve desired decreases in viscosities without adversely affecting other physical properties. The polycondensates have the formula: (HS-R-S)2CH-S-R'-S[-CH(-S-R"-S)2-]n(H)x, wherein R, R', and R" are alkylene, arylene, alkylene thioether, or alkylene ether, either the same or different; n is 0-10; and x is n + 1.

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