Method of making polymeric compositions and compositions therefo

Details Method of making polymeric compositions and compositions therefo Method of making polymeric compositions and compositions therefo

1976-10-29

1978-04-25

Hoke, V.P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 458N, 260 4575K, 260 4575B, 260 4595H, 260897C, 260899, C08K 543, C08K 539, C08K 534, C08K 553

Patent

active

040862976

ABSTRACT:
A solid composition comprising a homogeneous mixture of a solid thermoplastic resin and from 1 to 80 weight % of at least one microbiocide which is insoluble in water, is readily dispersible or soluble in the resin at temperatures sufficiently high to permit plastic manipulation of the resin and the dispersion or solution of the microbiocide is sustained indefinitely upon cooling to ambient temperature while the diffusivity of the microbiocide in the resin under such conditions becomes vanishingly small, retains its microbiocidal activity in the resin and does not degrade or react with the resin in which it is dispersed. This compositon provides a convenient non-toxic dosage form of the microbiocide which is subsequently mixed with a second thermoplastic resin at a concentration of about 0.5 to 15 weight % to obtain a homogeneous resin composition containing an effective amount of the microbiocide.

REFERENCES:
patent: 3257351 (1966-06-01), Kraus et al.
patent: 3415832 (1968-12-01), Crawford
patent: 3658994 (1972-01-01), Domenico
patent: 3755244 (1973-08-01), Hart
patent: 3758482 (1973-09-01), Domenico
Stabilization of Polymers and Polymer Processes - A. C. Society - 1968, pp. 250 to 271.
SPE Journal - 1970, vol. 26, pp. 26 to 30.

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