Stabilizer for glass/polymer alloys
US5367012A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1993 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Aug 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2214/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is directed to an alloy, and a method of producing an alloy, of increased resistance to moisture, comprising a melt mixture of at least one phosphate glass, at least one organic thermoplastic or thermosetting polymer, and an amount of a water soluble stabilizer component which provides a source of metal cations having a valency of 2.sup.+ or higher The amount of the stabilizer component added is that amount effective to improve the alloy's resistance to moisture. Preferably, the alloy is comprised of: (a) 5-80% of the matrix material; (b) 15-90% of the phosphate glass; and, (c) 0.1 to 40% of the stabilizer component. Additionally, the metal cations which are found in the stabilizer component and which form part of the insoluble surface layer are preferably selected from the group consisting of Ba.sup.2+, Mg.sup.2+, Ca.sup.2+, Al.sup.3+, Zn.sup.2+, Sr.sup.+2 and Fe.sup.3+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.