Poly(alkylene oxide)vinyl carboxylic ester containing polymer/inorganic oxide composites and methods of making
US5190698A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1991 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Apr 15, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C35/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is disclosed a composite of 1) a polymer containing repeating units derived from a vinyl carboxylic ester having at least one organo terminated poly(alkylene oxide) side chain with the proviso that the poly(alkylene oxide) is present in an amount greater than 35 mole percent of the total of all backbone monomer units and alkylene oxide units in the polymer and 2) a metal oxide wherein the metal oxide comprises between about 1 and about 60 percent by weight of the composite. The composites can be made by a process comprising the steps of: PA1 combining the described polymer and a metal oxide precursor in a solvent solution; PA1 casting or coating the resulting solution onto a substrate; PA1 curing the resulting sample to form a composite of the polymer and the metal oxide. Optionally, the composite can be removed from the substrate to form a transparent free standing film. These composites have a variety of desirable properties. Optionally, a salt may be added to produce hard, abrasion resistant, transparent, antistatic coatings or films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.