Polyurethane adhesives for reverse osmosis modules
US9808765B2 · kind B2 · utility
1Cited by
37References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Dec 14, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2313/042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adhesive composition suitable for reverse osmosis modules, the adhesive composition includes (I) a polyurethane composition that includes (A) an isocyanate group-containing pre-polymer comprising a reaction product of (i) castor oil or a derivative thereof; and (ii) a polyisocyanate; and (iii) optionally a second polyol; and (B) an isocyanate-reactive polyol mixture comprising: (i) a polybutadiene polyol; and (ii) a urethane catalyst; and (iii) optionally the second polyol; and (II) a plasticizer wherein the adhesive composition is essentially free from diluent oils and solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.