Polysiloxane block copolymers

Details Polysiloxane block copolymers Polysiloxane block copolymers

1986-01-21

1987-10-13

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 26, 528 25, 525446, 525474, C08G 7704

Patent

active

046999671

ABSTRACT:
Block copolymers of recurring structural units of the series of polysiloxanes and recurring structural units of the series of aliphatic polyesters, polyethers or polyetheresters with rubber properties, the polymeric block-forming polymers in each case producing rubber-type products with glass transition temperatures below practical temperatures of use and a process for the production thereof.

REFERENCES:
patent: 3701815 (1972-10-01), Matzner et al.
patent: 3919438 (1975-11-01), Urkevich
patent: 3935154 (1976-01-01), Cawley
patent: 4278574 (1981-07-01), Dworak et al.
patent: 4348510 (1982-09-01), Keck et al.
Macromolecules, 1981, vol. 14, Nbr 3, Jun: M. Galin & A. Mathis., "Structural & Thermodynamic Study of Dimethylsiloxane-Ethylene Oxide PDMS-PEO-PDMS Triblock Copolymers": pp. 677-683.
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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