US 12,311,613 B2
Method of joining resin members
Kunihito Arai, Tokyo (JP)
Assigned to ZEON CORPORATION, Tokyo (JP)
Appl. No. 18/261,482
Filed by ZEON CORPORATION, Tokyo (JP)
PCT Filed Feb. 24, 2022, PCT No. PCT/JP2022/007701
§ 371(c)(1), (2) Date Jul. 14, 2023,
PCT Pub. No. WO2022/181713, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2021-030784 (JP), filed on Feb. 26, 2021.
Prior Publication US 2024/0075694 A1, Mar. 7, 2024
Int. Cl. B29C 65/48 (2006.01); B29C 65/02 (2006.01)
CPC B29C 65/4895 (2013.01) [B29C 65/02 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of joining at least two resin members comprising a thermoplastic resin, the method comprising:
forming a coating layer by applying a solvent to a surface of at least one of the resin members, the solvent allowing the thermoplastic resin to have a degree of swelling of 1.05 or more and 3.00 or less when the thermoplastic resin is swollen by the solvent, and having a boiling point B° C. of R° C. or lower where R° C. is a glass transition temperature of the thermoplastic resin;
laminating the at least two resin members to one another via the coating layer to form a laminate; and
pressing the laminate in the lamination direction while heating at a heating temperature H° C. that is equal to lower than R° C.