Release compositions for asphalt roofing materials and methods of use
Patent 4447500 Issued on May 8, 1984. Estimated Expiration Date: 
July 25, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 25, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3380840 Lubricants comprising fluoroalkyl esters Patent #: 4203856 InventorApplicationNo. 06/516926 filed on 07/25/1983US Classes:428/489, Of bituminous or tarry residue106/243, Fat, fatty oil, fatty oil acid or salt thereof containing427/384, Organic coating427/385.5, Resin, resin precursor, rubber, or hardenable oil-containing coating427/417, Natural resin, oil, or fat containing428/906ROLL OR COILExaminersPrimary: Lusignan, Michael R.International ClassD06N 5/00 (20060101)AbstractA release coating for asphalt roofing sheet material comprises a mixture of fatty acid monoalkanol amides such as a mixture of cocamide MEA and stearamide MEA. The amides may be applied as dilute aqueous solutions or dispersions, and may be used with both asphalt shingles and roll roofing. | |
