US 12,214,538 B2
Blow molded containers and methods of making the same
Kasey Myers, Auburn, AL (US); and Jonathan R. Freedman, Auburn, AL (US)
Assigned to CSP TECHNOLOGIES, INC., Auburn, AL (US)
Appl. No. 15/733,780
Filed by CSP TECHNOLOGIES, INC., Auburn, AL (US)
PCT Filed Apr. 24, 2019, PCT No. PCT/US2019/028981
§ 371(c)(1), (2) Date Oct. 23, 2020,
PCT Pub. No. WO2019/209990, PCT Pub. Date Oct. 31, 2019.
Claims priority of provisional application 62/661,697, filed on Apr. 24, 2018.
Prior Publication US 2021/0245413 A1, Aug. 12, 2021
Int. Cl. B29C 49/00 (2006.01); B29C 49/22 (2006.01); B65D 81/26 (2006.01); C08K 5/06 (2006.01); C08L 23/06 (2006.01); B29L 31/00 (2006.01)
CPC B29C 49/0005 (2013.01) [B29C 49/22 (2013.01); B65D 81/266 (2013.01); C08K 5/06 (2013.01); C08L 23/06 (2013.01); B29L 2031/7158 (2013.01); C08L 2207/066 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of manufacturing a bottle, the bottle comprising a base, a sidewall extending from the base, and a neck extending from the sidewall, the neck leading to a dispensing opening, the base and the sidewall defining an interior configured to house at least one product, the neck having a first cross sectional area and the sidewall having a second cross sectional area, the first cross sectional area being smaller than the second cross sectional area, the method comprising the steps of:
providing a stock component comprising a coextruded composite having a barrier layer and a desiccant layer;
inserting an apparatus into an opening in the stock component; and
passing air into the opening of the stock component in order to form the bottle from the stock component, wherein the sidewall, the neck and the base include the barrier layer and the desiccant layer coextruded with and thereby attached to the barrier layer, the barrier layer and the desiccant layer each being blow molded together and contiguous with each other along the sidewall, the neck and the base, the barrier layer being disposed external relative to the desiccant layer and being made of a plastic material, the desiccant layer being made of a monolithic composition comprising a mixture of a base polymer, a desiccant comprising 35% to 70% by weight with respect to the total weight of the monolithic composition, and a polymeric channeling agent having a water vapor transmission rate greater than the base polymer chosen from polyglycol, ethylene-vinyl alcohol (EVOH), polyvinyl alcohol (PVOH), glycerin polyamine, polyurethane, polycarboxylic acid, propylene oxide polymerisate-monobutyl ether, propylene oxide polymerisate, ethylene vinyl acetate (EVA), nylon 6, nylon 66, or any combination of the foregoing, the monolithic composition comprising interconnecting channels formed of the channeling agent.