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Non-isocyanate polyurethane products and methods of making the same

Patent ·
OSTI ID:2293881
;
The present disclosure relates to a method for making a non-isocyanate polyurethane (NIPU) foam, where the method includes decomposing a blowing agent having at least one of an amine carbamate salt and/or an amine bicarbonate salt to form a diamine and CO2 in the presence of a molecule comprising a plurality of cyclic carbonate functional groups and reacting the diamine with at least a portion of the cyclic carbonate functional groups to form the NIPU foam. In some embodiments of the present disclosure, the reacting and the decomposing may occur at substantially the same rate.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-08GO28308
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
Patent Number(s):
11,820,876
Application Number:
17/398,760
OSTI ID:
2293881
Country of Publication:
United States
Language:
English

References (27)

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Solvent and catalyst-free synthesis of sunflower oil based polyurethane through non-isocyanate route and its coatings properties journal May 2018
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Isocyanate-Free Routes to Polyurethanes and Poly(hydroxy Urethane)s journal October 2015
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Linseed and soybean oil-based polyurethanes prepared via the non-isocyanate route and catalytic carbon dioxide conversion journal January 2012
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Development of Epoxy Foaming with CO 2 as Latent Blowing Agent and Principle in Selection of Amine Curing Agent journal November 2015
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Flexible and Bio-Based Nonisocyanate Polyurethane (NIPU) Foams journal June 2016
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Catalytic utilization of carbon dioxide to polymer blends via cyclic carbonate journal November 1998
Salt effect on polyaddition of bifunctional cyclic carbonate and diamine journal January 2005
Renewable Non‐Isocyanate Based Thermoplastic Polyurethanes via Polycondensation of Dimethyl Carbamate Monomers with Diols journal September 2013
Erythritol Dicarbonate as Intermediate for Solvent- and Isocyanate-Free Tailoring of Bio-Based Polyhydroxyurethane Thermoplastics and Thermoplastic Elastomers journal March 2017
α,ω-Di(glycerol carbonate) telechelic polyesters and polyolefins as precursors to polyhydroxyurethanes: an isocyanate-free approach journal January 2014

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