Chloral copolymers

Details Chloral copolymers Chloral copolymers

1974-12-06

1976-01-13

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

117124F, 117126GR, 117137, 260 292TN, 260 304N, 260 312N, 260 318S, 260 318F, 260 324, 260 328N, 260 332R, 260 336F, 260 336UB, 260 338F, 260 338UB, 260 37N, 260 37P, 260 458A, 260 458NZ, 260 459P, 260 64, 260 67R, 260 67TN, 260 67S, 260 96R, 260453A, C08J 900, C08G 600, C08G 218

Patent

active

039323188

ABSTRACT:
Chloral is copolymerized with one or more isocyanate, isothiocyanate, diisocynate, diisothiocyanate or ketene compounds to produce copolymers which are nonflammable and which can be made into a variety of useful, shaped objects. The process of making the copolymers involves preparing a homogeneous mixture of monomers and polymerization initiator at a temperature above the threshold polymerization temperature of the mixture, cooling the homogeneous mixture below the threshold polymerization temperature and maintaining the homogeneous mixture quiescent during the polymerization.

REFERENCES:
patent: 3183213 (1965-05-01), Van Lohuizen
patent: 3254052 (1966-05-01), McCain et al.
Takide et al., Kobunski Kagaku (Chemistry of High Polymers, Japan) 22, pp. 463-472, July 1965.

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