公开(公告)号：US20240409713A1

公开(公告)日：2024-12-12

申请号：US18702094

申请日：2021-10-29

Applicant: Dow Global Technologies LLC

Inventor： Zhengming Tang ,  Jian Zou ,  Haiying Li ,  Ryota Iwasaki ,  Joey W. Storer ,  Jie Ji ,  Shuyu Duan ,  Canzheng Cai ,  Shaoguang Feng ,  Ping Zhang

IPC: C08K5/103 ,  C08G18/18 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/76

Abstract: A polyurethane composition, comprising (A) an isocyanate compound; (B) a polyol compound; and (C) an amine-based catalyst system comprising (C1) at least one amine-based catalyst and (C2) at least one deodorant represented by Formula (1) or Formula (2), is provided. The polyurethane foam prepared by using said polyurethane composition exhibits extremely low odor intensity and superior performance properties, e.g. foaming degree and mechanical strength. A method for preparing a polyurethane foam with reduced odor is also provided.

公开(公告)号：US12098266B2

公开(公告)日：2024-09-24

申请号：US17298572

申请日：2018-11-29

Applicant: Dow Global Technologies LLC

Inventor： Haiying Li ,  Shaoguang Feng ,  Andong Liu ,  Yonghua Gong ,  Jian Zou ,  Xiuhan Yang ,  Takahiko Ohmura

IPC: C08L23/12 ,  C08K3/22 ,  C08K3/34 ,  C08K5/11 ,  C08L23/08 ,  C08K5/103

CPC classification number: C08L23/12 ,  C08K3/34 ,  C08K5/11 ,  C08L23/0815 ,  C08K3/22 ,  C08K2003/2206 ,  C08K2003/2296 ,  C08K5/103

Abstract: Provided is a thermoplastic polyolefin composition that comprises (A) a polypropylene polymer, (B) an elastomer component, (C) an additive component and (D) a scavenger component. Said scavenger component comprises a polyacetoacetate compound that has the Formula (I) defined herein and a metal oxide. Provided also is an article made from said thermoplastic polyolefin composition.

公开(公告)号：US20240294831A1

公开(公告)日：2024-09-05

申请号：US18573050

申请日：2021-10-06

Applicant: Dow Global Technologies LLC

Inventor： Cheng Shen ,  Haiying Li ,  Shaoguang Feng ,  Jian Zou ,  Zeyu Zhong ,  Qianyuan Shan

IPC: C09K23/00

CPC classification number: C09K23/018

Abstract: A surfactant composition includes 60 wt % or greater of a surfactant based on a total weight of the surfactant composition and 0.01 wt % to 1 wt % of a hydrazide antioxidant.

公开(公告)号：US20210301065A1

公开(公告)日：2021-09-30

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

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：US20210229033A1

公开(公告)日：2021-07-29

申请号：US16972020

申请日：2018-07-04

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Ji Guang Zhang ,  Jian Zou ,  Hongyu Chen ,  Shaoguang Feng ,  Wenbin Yao ,  Haiying Li ,  Xuemei Zhai

IPC: B01D53/72 ,  C09D179/02 ,  B01D53/02 ,  B01J20/28

Abstract: Polyethylenimine coated polymeric beads comprising a polymer that comprises, based on the weight of the polymer, from 25% to 75% by weight of structural units of an acetoacetoxy or acetoacetamide functional monomer, and from 25% to 75% by weight of structural units of a polyvinyl monomer; the polyethylenimine having a number average molecular weight of 300 g/mol or more; the polyethylenimine coated polymeric beads having a specific surface area in the range of from 20 to 400 m2/g; a process of preparing the polyethylenimine coated polymeric beads; a gas filter device comprising the polyethylenimine coated polymeric beads as a filter medium; and a method of removing aldehydes from air containing aldehydes, comprising contacting the air with the polyethylenimine coated polymeric beads.