Patent - This patent describes a random block copolymer compound that exhibits high melt flow (low melt viscosity) in the normal processing range for spray application of hot melt laminating adhesives used in non-woven sanitary articles. Current adhesives are triblock copolymers having a polystyrene content of from 25 to 35 %. These block copolymers show sufficiently low viscosity at the usually applied...

Source : United States Patent 8324309 B2 Filed: 04/27/2010 Published: 12/04/2012 Assignee: Kraton Polymers US LLC (Houston, TX, US) Inventors: Dubois, Donn (Houston, TX, US) Attorney/Agent: Clements Bernard PLLC, Masse, Michael A. App Num: 12/768114 Pub Date: 12/04/2012 File Date: 04/27/2010 Primary Class: 524/505 Other Classes: 524/571, 524/575, 524/577, 525/88, 525/314, 525/901 Intl. Classes: C08L53/00; C08L9/06; C08F293/00 Field of Search: 524/503, 524/505, 524/570, 524/571, 524/575, 524/577, 525/313, 525/314, 525/901, 525/326.1, 525/331.9, 525/332.9, 525/88