Block copolymers of conjugated dienes and lactones as modifiers

Details Block copolymers of conjugated dienes and lactones as modifiers Block copolymers of conjugated dienes and lactones as modifiers

1979-04-04

1981-09-01

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 44, 525171, C08L 900, C08L 906, C08L 6704, C08L 6706

Patent

active

042873134

ABSTRACT:
A thermosettable composition comprising (1) an unsaturated polyester, (2) a block copolymer of a lactone, a conjugated diene and, optionally, a monovinylarene, and (3) a vinyl monomer is provided which shows improved compatibility and stability over a composition in which the block copolymer does not contain a polylactone block.

REFERENCES:
patent: 3549586 (1970-12-01), Smith et al.
patent: 3639519 (1972-02-01), Hsieh et al.
patent: 3649716 (1972-03-01), Childers et al.
patent: 3764639 (1973-10-01), Hsieh et al.
patent: 3989769 (1976-11-01), Bonnington
patent: 4016221 (1977-04-01), Kudo et al.
patent: 4020036 (1977-04-01), South
Ito, "Propagation--Caprolactone--Oligomers" Macromolecules vol. 11, No. 1, Jan.-Feb. 1978 pp. 68-72.
Ito, "Equilibrium--Caprolactone" Macromolecules; vol. 10; No. 4 Jul.-Aug. 1977 pp. 821-824.

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