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1. (WO2018106497) HYDROGEN SULFIDE SCAVENGERS FOR POLYMER TREATED ASPHALT

Pub. No.:    WO/2018/106497    International Application No.:    PCT/US2017/063760
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: C08L 95/00
C08K 3/32
C08K 5/3472
C01B 25/24
Applicants: ECOLAB USA INC.
Inventors: TONG, Xiaowei
SORRELLS, Jennifer, L.
ANANTANENI, Prakasa, Rao
Title: HYDROGEN SULFIDE SCAVENGERS FOR POLYMER TREATED ASPHALT
Abstract:
Scavenging compounds and compositions useful in reducing sulfide emissions from polymer treated asphalt, such as polyphosphoric acid, are disclosed. The scavengers include hexamethyl-enetetramine, water-free triazine, and water-free 1,3,5-triazine derivatives of formula I. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.