Invention Grant
- Patent Title: Polyurethane foam by reaction injection molding
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Application No.: US14442294Application Date: 2013-11-13
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Publication No.: US10040890B2Publication Date: 2018-08-07
- Inventor: James Michael Lambert , Douglas K. Farmer , Achille Mayelle Bivigou Koumba
- Applicant: James Michael Lambert , Douglas K. Farmer , Achille Mayelle Bivigou Koumba
- Applicant Address: US DE Wilmington
- Assignee: INVISTA North America S.a r.l.
- Current Assignee: INVISTA North America S.a r.l.
- Current Assignee Address: US DE Wilmington
- Agent Bridget C. Sciamanna; Kathleen A. Tyrrell
- International Application: PCT/US2013/069864 WO 20131113
- International Announcement: WO2014/078395 WO 20140522
- Main IPC: C08G18/32
- IPC: C08G18/32 ; C08J9/00 ; C08J9/02 ; B29C44/38 ; C08G18/10 ; C08G18/08 ; C08G18/48 ; C08G18/76 ; C08J9/14 ; B29L31/58 ; B29K75/00 ; B29C44/34 ; C08G101/00

Abstract:
The present invention provides a method for preparing a foam that includes a polyurethaneurea dispersion. These foams have enhanced flexibility and resistance to compressibility compared to convention polyurethane foam. These foams may also be made by a reaction injection molding process. The method includes preparing a shaped polyurethane foam article by: (a) providing a first composition comprising at least one polyol, a chain extender composition and a blowing agent; (b) providing a second composition comprising at least one of a diisocyanate, a capped glycol, and combinations thereof; (c) mixing the first composition and the second composition to form a reaction mixture into a heated mold; and (d) allowing the reaction mixture to form a polyurethane foam; wherein the first composition includes one of: (i) the chain extender composition includes at least one amine compound; (ii) the blowing agent includes a polyurethaneurea aqueous dispersion; and (iii) combinations of (i) and (ii).
Public/Granted literature
- US20160280838A1 POLYURETHANE FOAM BY REACTION INJECTION MOLDING Public/Granted day:2016-09-29
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