公开(公告)号：US20130022827A1

公开(公告)日：2013-01-24

申请号：US13627436

申请日：2012-09-26

Applicant: Toppan Printing Co., Ltd.

Inventor： Kazuko IMAI ,  Yumiko OOMORI ,  Mitsuharu KIMURA ,  Akiko SAIKI

IPC: C09D101/02 ,  B32B23/00 ,  B82Y30/00

CPC classification number: C08K5/54 ,  B32B27/12 ,  B32B2262/062 ,  B32B2307/724 ,  C08K3/346 ,  C08K3/36 ,  C08K5/5425 ,  C08K5/5435 ,  C08K5/544 ,  C08K2201/008 ,  C09D183/04 ,  D21H19/32 ,  D21H19/34 ,  C08L1/04

Abstract: The present invention provides a composition for forming a film and its resultant film which has a high level of adhesiveness to a substrate and has good gas barrier properties. The composition for forming a film is prepared by adding a silane coupling agent to an aqueous dispersion liquid in which a cellulose nanofiber is dispersed in an aqueous medium. In addition, the composition for forming a film is also prepared by blending an aqueous dispersion liquid (a) which contains a cellulose nanofiber and has a pH 4-9 with a hydrolysis liquid (b) which contains alkoxysilane hydrolysates and has a pH 2-4 by a weight ratio of “cellulose nanofiber”/“alkoxysilane (in terms of SiO2)” in the range from 0.1 to 5.

Abstract translation: 本发明提供了一种用于形成膜的组合物及其所得膜，其对基材具有高水平的粘附性并且具有良好的阻气性。 通过在其中将纤维素纳米纤维分散在水性介质中的水分散液中加入硅烷偶联剂来制备膜的组合物。 此外，用于形成膜的组合物也可以通过将含有纤维素纳米纤维的水性分散液（a）与含有烷氧基硅烷水解物的水解液（b）混合而制备，并且具有pH 2- 4，纤维素纳米纤维/烷氧基硅烷的重量比（以SiO 2换算）为0.1〜5。

公开(公告)号：US20190039357A1

公开(公告)日：2019-02-07

申请号：US16156211

申请日：2018-10-10

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Akiko SAIKI ,  Kosuke SHIMIZU

IPC: B32B27/10 ,  B65D3/04 ,  B65D3/10 ,  B65D65/40 ,  B32B1/02 ,  B32B5/02

CPC classification number: B65D3/06 ,  B32B1/02 ,  B32B5/02 ,  B32B27/10 ,  B32B29/00 ,  B32B2262/04 ,  B65D3/04 ,  B65D3/10 ,  B65D3/22 ,  B65D65/40

Abstract: A paper cup includes barrier paper, the barrier paper including at least a paper base material, a reinforcing layer containing cellulose nanofibers which is formed on the paper base material, and a sealant layer formed on the reinforcing layer, in which after the paper cup is caused to free-fall 5 times towards a concrete floor surface from a height of 1 m with the bottom portion being disposed downward, the paper cup has a buckling strength of 350 N or more in a case of being sandwiched between two parallel plate surfaces and compressed in a height direction of the body portion, and has a lateral pressing strength of 4 N or more in a case where the body portion is pressed by 10 mm at a ⅔ height, from a bottom, of the entire height of the paper cup.

公开(公告)号：US20190078261A1

公开(公告)日：2019-03-14

申请号：US16157785

申请日：2018-10-11

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Akiko SAIKI ,  Kosuke SHIMIZU

IPC: D21H19/34 ,  D21H19/82 ,  B65D5/56

Abstract: A method for producing a laminated body including a base material and a coating layer laminated on the base material, includes: applying a coating liquid containing cellulose nanofibers onto the base material composed of at least acid-resistant paper, thereby forming the coating layer. In addition, an average fiber diameter of the cellulose nanofibers is 2 nm or more and 2000 nm or less, a content of the cellulose nanofibers in the coating liquid is 10 mass % or more of solid contents of the coating liquid, and a coating amount of the coating layer is 0.2 g/m2 or more in dry mass.