Modified terephthalic ester polyols and rigid foams therefrom
US4642319A · kind A · utility
22Cited by
14References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1986 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Jan 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The preparation of isocyanurate foams from a recycled polyethylene terephthalate polyol modified with aromatic amino polyols, sucrose polyols, ethoxylated alphamethyl glucosides, alkoxylated glycerine or alkoxylated sorbitol is disclosed. These modified foams exhibit improved fluorocarbon solubility. The foams may be used for building roofing and sheathing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.