US 12,077,338 B2
Fluid-container and method for controlling crystallinity in blow-molded container
Michael Spohn, Fenelton, PA (US); Kevin Cowan, Allison Park, PA (US); and David Berry, Kittanning, PA (US)
Assigned to BAYER HEALTHCARE LLC, Whippany, NJ (US)
Appl. No. 17/625,814
Filed by BAYER HEALTHCARE LLC, Whippany, NJ (US)
PCT Filed Jul. 14, 2020, PCT No. PCT/US2020/041968
§ 371(c)(1), (2) Date Jan. 10, 2022,
PCT Pub. No. WO2021/011558, PCT Pub. Date Jan. 21, 2021.
Claims priority of provisional application 62/874,236, filed on Jul. 15, 2019.
Prior Publication US 2022/0234779 A1, Jul. 28, 2022
Int. Cl. B65D 1/02 (2006.01); B29C 49/06 (2006.01); B29C 49/42 (2006.01); B29C 49/64 (2006.01); B29C 49/66 (2006.01); B29C 71/00 (2006.01); B29C 71/04 (2006.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01)
CPC B65D 1/0207 (2013.01) [B29C 49/06 (2013.01); B29C 49/4273 (2013.01); B29C 49/6605 (2022.05); B29C 71/0063 (2013.01); B29C 71/04 (2013.01); B29K 2067/003 (2013.01); B29K 2995/0043 (2013.01); B29L 2031/7158 (2013.01); B29L 2031/7544 (2013.01); B65D 2203/06 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A fluid container comprising:
a proximal end having an end wall;
a distal end having an open-ended neck; and
a sidewall extending between the proximal end and the distal end along a longitudinal axis,
wherein the fluid container includes at least a first crystalline region having a size ranging from 0.001 inch to 1.000 inch and at least a second region,
wherein a precise localized crystallinity of a polymeric material of the fluid container of the first crystalline region of the fluid container is greater than a crystallinity of the polymeric material of the fluid container of at least the second region,
wherein the precise localized crystallinity of the first crystalline region has a percent crystallinity ranging from 30% to 90% and is formed by heating the polymeric material of the first crystalline region to a temperature above a glass transition temperature of the polymeric material but below a melting temperature of the polymeric material with a beam of electromagnetic radiation in a form of a laser such that a transition zone between the first crystalline region and the second region is sharper than a transition zone between a first infrared heated crystalline region and a second region that is not infrared heated.