US 11,931,935 B2
Method of filling a microcavity with layers of polymeric material
Jolanta Gadzalińska, Łódzkie (PL); Łukasz Witczak, Łódzkie (PL); Aneta Wiatrowska, Dolnośla̧skie (PL); Karolina Fia̧zyk, Dolnośla̧skie (PL); Piotr Kowalczewski, Łódzkie (PL); and Filip Granek, Dolnośla̧skie (PL)
Assigned to XTPL S.A., Wroclaw (PL)
Filed by XTPL S.A., Wrocław (PL)
Filed on Jun. 1, 2022, as Appl. No. 17/804,939.
Claims priority of provisional application 63/195,282, filed on Jun. 1, 2021.
Prior Publication US 2022/0388211 A1, Dec. 8, 2022
Int. Cl. B29C 45/14 (2006.01); B29C 45/00 (2006.01); B29C 45/16 (2006.01); B29C 45/20 (2006.01); B29K 77/00 (2006.01)
CPC B29C 45/14344 (2013.01) [B29C 45/0001 (2013.01); B29C 45/0053 (2013.01); B29C 45/1657 (2013.01); B29C 45/20 (2013.01); B29C 2045/0075 (2013.01); B29C 2045/0094 (2013.01); B29K 2077/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of filling a microcavity with layers of a polymer material, comprising the steps of:
(A) estimating a current vertical position of a bottom of the microcavity;
(B) lowering a capillary tube into the microcavity;
(C) dispensing a polymer composition from a tube outlet of the capillary tube under a dispensing applied pressure until the polymer composition substantially fills the microcavity;
(D) curing a work piece comprising the microcavity and the polymer composition in the microcavity to obtain a current one of the layers of the polymer material; and
(E) repeatedly executing steps (A), (B), (C), and (D), until the layers of the polymer material have substantially filled the microcavity.