초록 ▼

A multilayer container for dispensing product that includes a relatively rigid outer body and a relatively flexible inner liner for holding product to be dispensed. The relatively rigid outer body includes, and preferably consists essentially of, an outer layer of virgin polyethylene such as HDPE, a

A multilayer container for dispensing product that includes a relatively rigid outer body and a relatively flexible inner liner for holding product to be dispensed. The relatively rigid outer body includes, and preferably consists essentially of, an outer layer of virgin polyethylene such as HDPE, and an inner thicker layer that includes polyethylene regrind. The relatively flexible inner liner includes, and preferably consists essentially of, an outer delamination layer adjacent to the inner layer of the body and composed of nylon, nylon blends or EVOH, an inner layer of polyethylene such as LLDPE, and an adhesive securing the inner and outer layers of the liner. The relatively thin outer HDPE layer on the plastic body provides desired appearance, while the thicker inner layer provides structural rigidity using reground plastics. The nylon, nylon blend or EVOH outer liner layer provides improved barrier properties against migration of water, gases and flavorants, while the inner layer of LLDPE provides primarily enhanced flexibility and freedom from cracking, as well as additional barrier moisture qualities.

대표청구항 ▼

A multilayer container for dispensing product that includes a relatively rigid outer body and a relatively flexible inner liner for holding product to be dispensed. The relatively rigid outer body includes, and preferably consists essentially of, an outer layer of virgin polyethylene such as HDPE, a

A multilayer container for dispensing product that includes a relatively rigid outer body and a relatively flexible inner liner for holding product to be dispensed. The relatively rigid outer body includes, and preferably consists essentially of, an outer layer of virgin polyethylene such as HDPE, and an inner thicker layer that includes polyethylene regrind. The relatively flexible inner liner includes, and preferably consists essentially of, an outer delamination layer adjacent to the inner layer of the body and composed of nylon, nylon blends or EVOH, an inner layer of polyethylene such as LLDPE, and an adhesive securing the inner and outer layers of the liner. The relatively thin outer HDPE layer on the plastic body provides desired appearance, while the thicker inner layer provides structural rigidity using reground plastics. The nylon, nylon blend or EVOH outer liner layer provides improved barrier properties against migration of water, gases and flavorants, while the inner layer of LLDPE provides primarily enhanced flexibility and freedom from cracking, as well as additional barrier moisture qualities. f preparing broadband cholesteric liquid crystals according to claim 7 wherein said second chiral liquid crystal has a temperature-dependent helicity and exhibits a helix inversion characteristic at a helix inversion temperature. 9. The method of preparing broadband cholesteric liquid crystals according to claim 8 wherein said polymerization reaction is a non-isothermal reaction which is controlled such that said polymerization reaction takes place over a temperature span which encompasses said helix inversion temperature. 10. The method of preparing broadband cholesteric liquid crystals according to claim 9 wherein said first chiral liquid crystal has a pitch which decreases with temperature. 11. The method of preparing broadband cholesteric liquid crystals according to claim 10 wherein said second chiral liquid crystal has an opposite helical direction relative to said first chiral liquid crystal below said helix transition temperature and a same helical direction relative to said first chiral liquid crystal above said helix transition temperature. 12. The method of preparing circular reflective polarizers according to claim 1 wherein said second chiral liquid crystal is a chiral diester. 13. The method of preparing circular reflective polarizers according to claim 7 wherein said chiral diester is selected from the group consisting of: 2,3-bis-[4-(trans-4-n-pentyl-cyclohexyl)-benzoyloxy]-butane,