Dispersions of high carboxyl polyamides into polyesters
US9018293B2 · kind B2 · utility
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Key dates
| Filing date | Oct 16, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jan 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer composition, stretched and unstretched articles and processes to make stretched and unstretched articles from that composition are set forth wherein the composition comprises a blend of a polyamide wherein the amino to carboxyl end group ratio of the polyamide polymer is less than 1.0 when the relative viscosity of the polyamide polymer is less than 2.0, and less than 0.30 when the relative viscosity is in the range of 2.0 to 2.3 and less than 0.20 when the relative viscosity is greater than 2.3, a crystallizable polyester and an interfacial tension reducing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.