Tear resistant multilayer films and articles incorporating such films.
摘要
<p>A tear resistant film (10) comprises more than five layers situated one on the other in a parallel array. The layers are individually selected from a stiff polyester or copolyester (13), a ductile polymeric material (11), and optionally, an intermediate material (12). The stiff polyester or copolyester is oriented in at least one direction. Tear resistance may be measured in a Graves area test and reflects the ability of the film to absorb energy. The films of the invention are useful in many articles including security control laminates for glazing members. <IMAGE></p>
申请公布号
EP0592284(A2)
申请公布日期
1994.04.13
申请号
EP19930402389
申请日期
1993.09.30
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
BLAND, RALPH H.;JONZA, JAMES M.;SMITH, JAMES D.;ALLEN, RICHARD C.;SMITH, JAMES D.;ALLEN, RICHARD C.;BRADLEY, JEFFREY F.;SMITH, KENNETH B.;STAMBAUGH, BRUCE D.