The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1978
Filed:
Oct. 29, 1976
Nuno M Rei, Peabody, MA (US);
Nicholas J Hill, Andover, MA (US);
Ventron Corporation, Beverly, MA (US);
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.