Terephthalic ester polyols modified with ethoxylated amines and amides and rigid foams therefrom
US4760100A · kind A · utility
8Cited by
26References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1987 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2115/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The preparation of isocyanurate foams from a recycled polyethylene terephthalate polyol modified with alkoxylated amines and alkoxylated amides is disclosed. These modified foams exhibit improved fluorocarbon solubility, and do not cause the resultant polyols to be monofunctional, but rather difunctional. The foams may be used for building, roofing and sheathing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.