New polysiloxane block copolymers

Details New polysiloxane block copolymers New polysiloxane block copolymers

1987-06-04

1989-05-02

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 21, 528 23, 528 26, 528 29, 525446, 525474, C08G 7706

Patent

active

048269468

ABSTRACT:
Multi-block copolymers of recurring structural units of polysiloxanes and recurring structural units of aliphatic polyesters, polyethers or polyetheresters with rubber properties, the individual polymeric blocks constituting rubber-type products with glass transition temperatures below practical usefulness and a process for their production.

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patent: 4699967 (1987-10-01), Eichenaver et al.
Macromolecules, 1981 vol. 14, Nbr 3 Jun: M. Galin P A Mathis; "Structural P Thermodynamic Study of Dimethyl Siloxane--Ethylene Oxide PDMS-PEO-PDMS Triblock Copolymers": pp. 677-682.
Macromolecules, Nov./Dec., 1977, vol. 10, Nbr 6, James J. O'Malley, Thomas J. Pacansky, and Walter J. Stauffer; "Synthesis and Characterization of Poly(Hexamethylene Sebacate) Poly(Dimethylsiloxane) Block Copolymers"; pp. 1197-1199.

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