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1. (WO2018182770) POLYETHER-EPOXIDE POLYMER COMPOSITIONS

Pub. No.:    WO/2018/182770    International Application No.:    PCT/US2017/045867
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Aug 09 01:59:59 CEST 2017
IPC: C08G 59/62
C08G 65/331
C09D 163/00
Applicants: STEPAN COMPANY
Inventors: KAPLAN, Warren, A.
WESTFALL, Jennifer, S.
Title: POLYETHER-EPOXIDE POLYMER COMPOSITIONS
Abstract:
Polyether-epoxide polymer compositions are disclosed. The compositions comprise a reaction product of a polyepoxide compound and a polyol composition comprising a polyether polyol. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.5:1 to 3:1. The polyether-epoxide composition has a Tg within the range of -40°C to 60°C. The polyether polyol has a hydroxyl value within the range of 150 to 800 mg KOH/g and an average hydroxyl functionality within the range of 3.5 to 8.0. In some aspects, the polyol composition further comprises a polyester polyol. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the polyether-epoxide compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on polyamines or polyisocyanates.