초록 ▼

A multilayer nonlinear dielectric optical structure is formed by coextruding at least two polymeric materials, components (a) and (b), using a multiplying element; the structure contains a plurality of alternating layers (A) and (B) represented by formula (AB)x,where x=2n,and n is the number of mult

A multilayer nonlinear dielectric optical structure is formed by coextruding at least two polymeric materials, components (a) and (b), using a multiplying element; the structure contains a plurality of alternating layers (A) and (B) represented by formula (AB)x,where x=2n,and n is the number of multiplying elements; at least one of the components (a) and (b) exhibits nonlinear optical response. These structures perform a variety of nonlinear optical functions including all-optical switching and passive optical limiting.

대표청구항 ▼

A multilayer nonlinear dielectric optical structure is formed by coextruding at least two polymeric materials, components (a) and (b), using a multiplying element; the structure contains a plurality of alternating layers (A) and (B) represented by formula (AB)x,where x=2n,and n is the number of mult

A multilayer nonlinear dielectric optical structure is formed by coextruding at least two polymeric materials, components (a) and (b), using a multiplying element; the structure contains a plurality of alternating layers (A) and (B) represented by formula (AB)x,where x=2n,and n is the number of multiplying elements; at least one of the components (a) and (b) exhibits nonlinear optical response. These structures perform a variety of nonlinear optical functions including all-optical switching and passive optical limiting. rlapping platelets that are oriented essentially parallel to the plane of the disk. 31. The method set forth in claim 30 comprising the additional steps of: (c) providing a closure cap having a base and a peripheral skirt defining a cap interior and means on said skirt for securing the cap to a container, and (d) securing said liner disk to the interior of said cap. 32. The method set forth in claim 31 wherein said steps (b) and (d) are carried out simultaneously by compression molding said pellet in situ on said base. 33. The method set forth in claim 32 wherein said step (a) comprises the step of forming said pellet such that said barrier material is substantially uniformly dispersed as a discontinuous phase of discrete particles within said matrix material. 34. The method set forth in claim 30 wherein said matrix polymer material is selected from the group consisting of thermoplastic elastomers, soft olefin polymers, and mixtures thereof. 35. The method set forth in claim 34 wherein said matrix polymer material is a thermoplastic elastomer having a Shore A hardness of 45 to 95 and a flexural modulus of 30,000 to 100,000 psi. 36. The method set forth in claim 34 wherein said matrix polymer material is a thermoplastic elastomer selected from the group consisting of styrene block copolymers and elastomeric alloys. 37. The method set forth in claim 34 wherein said matrix polymer material includes an olefin polymer selected from the group consisting of metallocene-made polyethylene, ethylene-propylene rubbers, ethylene copolymers, and mixtures thereof. 38. The method set forth in claim 30 wherein said barrier polymer material is selected from the group consisting of EVOH, nylon, acrylonitrile copolymers, blends of EVOH and amorphous nylon, blends of EVOH and an ionomer, acrylonitrile, cyclic olefin copolymers, and blends thereof. 39. The method set forth in claim 30 wherein compatibilizer resin material is selected from the group consisting of maleic anhydride grafted polymers, ethylene vinyl acetate grafted polymers, ethylene methyl acrylate, ionomers and blends thereof. 40. The method set forth in claim 30 wherein said barrier polymer material comprises EVOH and said matrix material comprises EVA or polypropylene/butyl rubber. 41. The method set forth in claim 30 wherein