Invention Grant
- Patent Title: Method for reducing odoriferous and/or toxic residual monomer in a latex
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Application No.: US15341557Application Date: 2016-11-02
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Publication No.: US10023662B2Publication Date: 2018-07-17
- Inventor: Tingke Zhang , Jitao Chen , Minghe Li
- Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM AND HAAS COMPANY
- Applicant Address: US MI Midland US PA Philadelphia
- Assignee: Dow Global Technologies LLC,Rohm and Haas Company
- Current Assignee: Dow Global Technologies LLC,Rohm and Haas Company
- Current Assignee Address: US MI Midland US PA Philadelphia
- Agency: Cantor Colburn LLP
- Agent Karl E. Stauss
- Main IPC: C08F6/00
- IPC: C08F6/00 ; C09D133/08 ; C08K5/42 ; C08K3/30 ; C08K3/28

Abstract:
A new and efficient toxicity and/or odor reducing method for ethyl acrylate and/or acrylonitrile containing aqueous polymer dispersion is disclosed, which comprises contacting a sufficient amount of an ethyl acrylate/acrylonitrile scavenging compound with a stable aqueous dispersion of a polymer to form a polymeric dispersion that contains less than 1 ppm of ethyl acrylate and less than 1 ppm acrylonitrile; wherein the polymer contains a) polymerized units of acylonitrile and/or ethyl acrylate and b) at least 5 ppm of ethyl acrylate and/or acrylonitrile monomers; and wherein the ethyl acrylate/acrylonitrile scavenging compound are contacted with the dispersion independently from contact of the dispersion with any redox pairs.
Public/Granted literature
- US20170190809A1 METHOD FOR REDUCING ODORIFEROUS AND/OR TOXIC RESIDUAL MONOMER IN A LATEX Public/Granted day:2017-07-06
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