Polydiorganosiloxane polyoxamide copolymers
US7883652B2 · kind B2 · utility
13Cited by
22References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 29, 2009 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Aug 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)n type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.