CPC <CPC> TO SELL UNIT TO HI-PORT <HIPT> CPC International Inc said it has agreed in principle to sell its Peterson/Puritain Inc subsidiary to Hi-Port Industries Inc. CPC said the sale is not expected to have a significant impact on its earnings and is subject to approval by boards of both companies. Terms were not disclosed. Peterson/Purittan is a contract packager of personal care and household products.