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公开(公告)号：US20220098359A1
公开(公告)日：2022-03-31
申请号：US17426371
申请日：2020-01-14
Applicant: BASF SE
Inventor： Bang Wei Xi , YingHao Liu , Zhen Peng Liang , Jin Lin Liu , Bo Chen , Ben Ben Shen , Zi Song Zhu
Abstract: Described herein is a polyurethane foam prepared with certain polytetrahydrofurans and optional polyether polyols. The polyurethane foam is characterized by low hardness increase at low temperature as compared with conventional polyurethane foam, and is suitable for use in products which can be exposed to low temperature such as snow boots.
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公开(公告)号：US11787897B2
公开(公告)日：2023-10-17
申请号：US16771750
申请日：2018-12-04
Applicant: BASF SE
Inventor： Zhen Peng Liang , Yun Bang Zhong
IPC: C08G18/78 , A43B17/00 , A43B17/14 , B29D35/14 , B32B5/02 , B32B5/24 , C08G18/08 , C08G18/48 , C08G18/72 , C08G18/73 , C08G18/83 , C08J9/12 , B29K75/00 , B29K105/04 , C08G101/00
CPC classification number: C08G18/78 , A43B17/006 , A43B17/14 , B29D35/14 , B32B5/02 , B32B5/245 , C08G18/14 , C08G18/4816 , C08G18/725 , C08G18/73 , C08G18/833 , C08J9/125 , B29K2075/00 , B29K2105/045 , B32B2266/0278 , B32B2266/06 , B32B2437/02 , C08G2101/00 , C08G2110/0033 , C08G2410/00 , C08J2201/022 , C08J2203/10 , C08J2205/05
Abstract: Described herein is a method for producing a PU foam insole, including the following steps of: (1) pouring the raw materials used to form a PU foam into a mould, reacting to obtain a PU sheet, where the height of the mould cavity is from about 1.0 to about 1.6 times of the total thickness of two finished insoles; (2) splitting the PU sheet into two halves in the horizontal direction to obtain two pieces of PU insole material, where one surface of the material has open pores, and the other surface of the material has a skin; and (3) attaching a piece of fabric onto the surface having open pores of the material obtained in step (2). Also described herein is a PU foam insole produced by the method.
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