17.2 During the term of this Agreement and after the expiration or termination of this Agreement, SELLER shall not use BUYER's trademarks, any name similar to the said trademarks or BUYER's intellectual property for any purpose, except as expressly permitted by BUYER in writing or pursuant to this Agreement and shall not do anything which would adversely affect the validity or enforceability of BUYER's trademarks and/or intellectual property and/or any rights of BUYER in relation thereto.