Stable and compatible polymer blends
US8586637B2 · kind B2 · utility
3Cited by
35References
9Claims
0Family size
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Key dates
| Filing date | Jun 24, 2008 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Nov 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention pertains to products and processes relating to compatible polymer blends comprising at least one sulfonated polymer and at least one non-sulfonated polymer. The sulfonated polymers may be produced using a number of sulfonating agents including a coordination complex of sulfur trioxide. The polymeric blended materials described herein are useful in a variety of applications, including as coatings for medical devices, protective clothing and fabric, laboratory equipment, vascular stents and shunts, absorbent materials and separation membranes, three-dimensional constructs, devices, and other uses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.