US 12,338,351 B2
Dip molding emulsion, method of producing glove, and glove
Norihide Enomoto, Tokyo (JP); Taichi Ogawa, Tokyo (JP); Kaname Shibata, Tokyo (JP); and Junji Shibasaki, Tokyo (JP)
Assigned to Midori Anzen Co., Ltd., Tokyo (JP)
Filed by Midori Anzen Co., Ltd., Tokyo (JP)
Filed on Oct. 20, 2022, as Appl. No. 17/969,755.
Application 17/969,755 is a continuation of application No. 16/477,247, granted, now 11,713,401, previously published as PCT/JP2019/013455, filed on Mar. 27, 2019.
Claims priority of application No. 2018-074240 (JP), filed on Apr. 6, 2018; and application No. 2018-074929 (JP), filed on Apr. 9, 2018.
Prior Publication US 2023/0105669 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 41/14 (2006.01); A41D 19/00 (2006.01); A61B 42/10 (2016.01); B29C 41/46 (2006.01); C08J 3/24 (2006.01); C08J 3/26 (2006.01); C08J 5/02 (2006.01); C08J 5/18 (2006.01); C09D 109/02 (2006.01); C09D 109/04 (2006.01); B29K 33/18 (2006.01); B29K 105/24 (2006.01); B29L 31/48 (2006.01)
CPC C09D 109/02 (2013.01) [A41D 19/0062 (2013.01); A61B 42/10 (2016.02); B29C 41/14 (2013.01); B29C 41/46 (2013.01); C08J 3/248 (2013.01); C08J 3/26 (2013.01); C08J 5/02 (2013.01); C08J 5/18 (2013.01); C09D 109/04 (2013.01); B29K 2033/18 (2013.01); B29K 2105/24 (2013.01); B29L 2031/4864 (2013.01); C08J 2309/04 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of producing a glove, the method comprising:
(1) a step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold;
(2) a step of stirring the dip molding emulsion whose pH has been adjusted to 9.0 or higher with the pH modifier (maturation step);
(3) a dipping step of immersing the glove forming mold, to which the coagulant has adhered in the step (1), in the dip molding emulsion subjected to the step (2) so as to coagulate the dip molding emulsion on the glove forming mold and thereby form a film;
(4) a gelling step of gelling the film thus formed on the glove forming mold to prepare a cured film precursor, in which gelling step the glove forming mold is left to stand at a temperature of 21° C. to 140° C. for 20 seconds or longer;
(5) a leaching step of removing impurities from the cured film precursor thus formed on the glove forming mold;
(6) a beading step of, after the leaching step, making a roll in a cuff portion of the resulting glove; and
(7) a curing step of heating and drying the cured film precursor eventually at 70° C. to 150° C. for 10 minutes to 30 minutes to obtain a cured film,
which steps (3) to (7) are performed in the order mentioned.