PBS resin composition and preparation method thereof
US10815332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention discloses a PBS resin composition and a preparation method thereof. The composition comprises: a. PBS resin; b. element titanium; c. element phosphorus, wherein a weight ratio range of titanium to phosphorus is 0.6-10:1, preferably 0.7-4:1, and more preferably 1.25-1.5:1. A weight content of the element titanium is 20-200 ppm, and a weight content of the element phosphorus is 15-70 ppm. By adding a titanium-containing compound and a phosphorus-containing compound and controlling the range of the weight ratio of the element titanium to the element phosphorus in the PBS resin composition to be 0.6-10:1, the present invention obtains a PBS resin composition. After treating in a 95° C.-distilled water bath for 12 hours and drying at 90° C. for 3 hours, a change of the melt flow index of the PBS resin composition is less than 50.0 g/10 min, and the PBS resin composition possesses an obviously improved hydrolysis property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.