公开(公告)号：US11603428B2

公开(公告)日：2023-03-14

申请号：US17262824

申请日：2018-08-02

Applicant: Dow Global Technologies LLC

Inventor： Zhengming Tang ,  Jian Zou ,  Shaoguang Feng ,  Yuji Sasaki ,  Hongliang Chen ,  Haiying Li ,  Degang Zhang ,  Ping Zhang

IPC: C08G18/66 ,  C08G18/20 ,  C08G18/32 ,  C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/64 ,  C08J9/12 ,  C08K3/30

Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, a polyethyleneamine mixture having a number average molecular weight of 175 to 450 and an alkali metal, phosphonium or ammonium sulfite. Foams so produced emit low levels of formaldehyde, acetaldehyde, acrolein and propionaldehyde.

公开(公告)号：US11479650B2

公开(公告)日：2022-10-25

申请号：US17262828

申请日：2018-08-02

Applicant: Dow Global Technologies LLC

Inventor： Zhengming Tang ,  Jian Zou ,  Shaoguang Feng ,  Yuji Sasaki ,  Hongliang Chen ,  Degang Zhang ,  Ping Zhang

IPC: C08J9/12 ,  C08G18/08 ,  C08G18/22 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/76 ,  C08J9/00 ,  C08K5/13

Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1,3-diketone compound, at least one aminoalcohol or alkylhydroxylamine and an alkali metal, phosphonium or ammonium sulfite. Foams so produced emit low levels of formaldehyde, acetaldehyde, acrolein and propionaldehyde.

公开(公告)号：US20210130562A1

公开(公告)日：2021-05-06

申请号：US16486712

申请日：2017-02-16

Applicant: DOW GLOBAL TECHNOLOGIES., LLC

Inventor： Jian Zou ,  Shaoguang Feng ,  Yoshiaki Miyazaki ,  Zhengming Tang ,  Wenbin Yao ,  Fu Zhan ,  Degang Zhang ,  Jiguang Zhang ,  Ping Zhang

IPC: C08J9/00 ,  C08G18/12 ,  C08G18/16 ,  C08G18/48 ,  C08G18/63 ,  C08G18/76 ,  C08K5/13 ,  C08K5/053 ,  C08K5/17 ,  C08K5/3462

Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one aminoalcohol compound and least one antioxidant. Foams so produced emit low levels of both formaldehyde and acetaldehyde.