公开(公告)号：US20250010604A1

公开(公告)日：2025-01-09

申请号：US18711321

申请日：2022-09-29

Applicant: SAKATA INX CORPORATION

Inventor： Ibuki TOMIURA ,  Kyohei TAKIMOTO ,  Junichi HARADA

IPC: B32B37/26 ,  B32B7/06 ,  B32B7/12 ,  B32B27/08 ,  B32B33/00 ,  B32B37/24 ,  B32B38/00

Abstract: A releasing primer composition contains at least one type selected from (1) to (3) below, for forming the releasing primer layer which is used in a laminate by lamination layered in the order of a resin base material, the releasing primer layer, a printed layer, and a sealant layer: (1) a mixture containing a silane coupling agent containing glycidyl groups and a polyethyleneimine compound; (2) a mixture containing a silane coupling agent containing isocyanate groups and a polyethyleneimine compound; (3) a siloxane-modified polyethyleneimine compound. The releasing primer composition is intended to allow the base material and the printed layer to adhere together strongly and unfailingly during use, while more easily separating/releasing the printed layer from the resin base material and from sealant layer, as well as to achieve excellent laminatability and post-retort laminatability.

公开(公告)号：US20250018682A1

公开(公告)日：2025-01-16

申请号：US18713680

申请日：2022-09-29

Applicant: SAKATA INX CORPORATION

Inventor： Ibuki TOMIURA ,  Kyohei TAKIMOTO ,  Junichi HARADA

IPC: B32B7/06

Abstract: An object is to obtain a laminate that allows a printed layer to be separated/released more easily from a resin base material or sealant layer using a release solution, while achieving excellent lamination-suitability. As a solution, a laminate comprising a resin base material, a releasing primer layer, a printed layer, a releasing primer layer and a sealant layer, being stacked in this order, is provided, wherein the releasing primer composition for forming the releasing primer layers contains a polyethyleneimine-based compound with an amine value of 5.0 to 25.0 mmol/g and/or polybutadiene-based compound.

公开(公告)号：US20240400867A1

公开(公告)日：2024-12-05

申请号：US18696300

申请日：2022-09-28

Applicant: SAKATA INX CORPORATION

Inventor： Ibuki TOMIURA ,  Kyohei TAKIMOTO ,  Junichi HARADA

IPC: C09J7/40

Abstract: An object is to allow a base material and a printed layer to bond together securely during use, while also making it easier to release the printed layer from the base material after use and facilitating the separation/release of the printed layer from the release solution thereafter, as well as to, in a laminate comprising a base material film and a paper base material layered thereon via an adhesive layer, facilitate the separation/release of the adhesive layer from the base material film. As a solution, a releasing primer composition containing a polyethyleneimine-based compound with an amine value of 5.0 to 25.0 mmol/g and/or polybutadiene-based compound is provided, which is used, with respect to a printed matter formed in the order of a resin base material, a releasing primer layer, and a printed layer, for forming the releasing primer layer.