公开(公告)号：US10271678B1

公开(公告)日：2019-04-30

申请号：US16004777

申请日：2018-06-11

Applicant: BE RICH LIMITED

Inventor： Hsien-Jen Lin ,  Tzu-Chi Lin

IPC: A47J31/06 ,  A47J31/44

Abstract: This invention relates to a cup sleeve structure with hanging ears, which comprises a cup sleeve which has an annular wall body having a top opening and bottom opening on the two sides of the annular wall body, and at least two hanging ears, which can be bent and combined to the outer surface of the annular wall. By the implementation of the present invention, the cup sleeve structure having hanging ears can completely take up the least space while being stored, and can also be conveniently carried, and can support the filter cup body in use.

公开(公告)号：US11866886B2

公开(公告)日：2024-01-09

申请号：US17541375

申请日：2021-12-03

Applicant: Be Rich Limited

Inventor： Hsien-Jen Lin

IPC: D21H19/12 ,  D21H19/82 ,  D21H27/00

CPC classification number: D21H19/12 ,  D21H19/824 ,  D21H27/00

Abstract: A biodegradable food-grade polyvinyl alcohol (PVA) paper substrate and a method for making the same are provided. The method includes: providing a paper substrate; preparing a first coating material by rendering PVA with a degree of alkalization of 90%-100% and a molecular weight of 100,000-300,000 into an aqueous solution in which the PVA has a weight ratio of 3%-15%; preparing a second coating material by rendering sodium trimetaphosphate into an aqueous solution in which the sodium trimetaphosphate has a molar concentration of 0.05-1 Mol/l; forming a coating layer on a surface of the paper substrate; forming a surface cross-linked layer on the coating layer; and drying. The resulting PVA paper substrate is biodegradable, of food-grade quality, and resistant to water and grease, with a grease resistance higher than or equal to that corresponding to kit No. 6 in a TAPPI T559 pm-96 standard test.