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                                                                     EXHIBIT 5.1



                               OPINION OF COUNSEL


We are of the opinion that all of the outstanding shares of common stock of
Planet Polymer Technologies, Inc. to be registered by this Amendment to the
Registration Statement are validly issued, fully paid and non-assessable.


When shares underlying warrants are issued pursuant to the terms of the
warrants, we are of the opinion that the shares will be validly issued, fully
paid and non-assessable.


We hereby consent to the filing of this opinion as an exhibit to this Amendment
to the Registration Statement and the use of our name wherever it appears in the
Registration Statement.


/s/ BLANCHARD, KRASNER & FRENCH

La Jolla, California
November 13, 2000