English to Portuguese Law/Patents Law (general)

Olá colegas,
Estou em dúvida nesse termo em específico, segundo definição:

An agreement in which the seller conditions the sale of one product (the "tying" product) on the buyer's agreement to purchase a separate product (the "tied" product) from the seller. Alternatively, it is also considered a tying arrangement when the seller conditions the sale of the tying product on the buyer's agreement not to purchase the tied product from any other seller. See Eastman Kodak v. Image Technical Services, Inc., 504 U.S. 541 (1992).
Fonte: https://www.law.cornell.edu/wex/tying_arrangement

Pelo que vi tem alguma ligação com “amarrar” as partes, porém achei o termo um pouco informal

(Direito concorrencial)