Polycarbonate Diols (PCD) are used for a wide range of polyurethane-based coating formulations, providing an extreme durability and a high performance to the final polymer. ok
In mathematics, a reciprocity law is a generalization of the law of quadratic reciprocity. There are several different ways to express reciprocity laws.
Full Definition of RECIPROCITY. 1. : the quality or state of being reciprocal: mutual dependence, action, or influence. 2. : a mutual exchange of privileges; specifically: a recognition by one of two countries or institutions of the validity of licenses or privileges granted by the other.See reciprocity defined for English-language learners.. : the quality or state of being reciprocal: mutual dependence, action, or influence. 2. : a mutual exchange of privileges; specifically: a recognition by one of two countries or institutions of the validity of licenses or privileges granted by the other. See reciprocity defined for English-language learners.