Functionalized molecular sieves
US6331500A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/27
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to functionalized molecular sieves that are useful as shape-selective adsorbents and catalysts. The inventive molecular sieves have a crystalline framework and include micropores of substantially uniform size and shape formed therein. These micropores contain one or more accessible organic moieties that are linked to the crystalline framework by a carbon-silicon ond. Shape selectivity of the inventive molecular sieves may be modulated by varying the size and shape of the micropores (which is a function of the particular molecular sieve being synthesized) and the organic moiety incoporated therein. In preferred embodiments, the molecular sieves of the present invention include crosslinked monomers of the formula ##STR1## wherein: PA1 X is a subsituted or unsubstituted moiety and PA1 R.sup.1 and R.sup.2 are each independently either oxygen, or a substituted or unsubstituted moiey, wherein the moiety is selected from the group consisting of C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.20 alkynyl, cycloalkyl, cycloalkenyl, aryl, and heteroaryl, each optionally substituted with one or more substituents elected from the group consisting…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.