(October 23, 2017, 11:57 AM EDT) -- MORRISTOWN, N.J. — The former operator of a contaminated site in New Jersey on Oct. 6 filed a breach of contract lawsuit in state court against the company that purchased its inks and pigment business, arguing that the buyer is required under an asset purchase agreement to indemnify it for $7.5 million in cleanup costs (Sequa Corporation v. Sun Chemical Corporation, No. MRS-L-002166-17, N.J. Super., Morris Co.)....