FIELD: process engineering.
SUBSTANCE: invention relates to production of plastics, particularly, to plasticizing additives to PVC compositions. Plasticiser for PVC compositions represents the mix of 15-35% of diesters of dioxane alcohols, 50-55% of monoesters of dioxane alcohols and up to 100% of unreacted initial reagents. This plasticiser is produced by interesterification of dibutyl adipate by dioxane alcohols in the presence of tetrabutoxititanium at 170-180°C. Note here that molar ratio dibutyl adipate-to-dioxane alcohols makes 1/1.5-1.7.
EFFECT: better operating properties due to lower thickness of PVC pastes base on said composition.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OBTAINING PLASTICISER FOR POLYVINYL CHLORIDE COMPOSITION | 2017 |
|
RU2643996C1 |
| PLASTICIZING AGENT | 2004 |
|
RU2260606C1 |
| METHOD FOR PRODUCTION OF PLASTICIZING COMPOSITION | 2021 |
|
RU2788757C1 |
| METHOD OF PRODUCING ESTERS OF DICARBOXYLIC ACIDS C-C AND ALCOHOLS C-C | 2007 |
|
RU2373188C2 |
| GLUE-HERMETIC | 2001 |
|
RU2186817C1 |
| METHOD OF PRODUCING ESTERS | 2010 |
|
RU2453530C2 |
| PROCESS FOR PREPARING POLYESTER PLASTICIZERS | 0 |
|
SU1821473A1 |
| METHOD OF PRODUCING ESTER PLASTICISER | 2018 |
|
RU2696261C1 |
| COMPOSITE ESTER COMPOUND, PLASTICIZING COMPOSITION BASED ON IT, METHOD FOR PRODUCTION OF PLASTICIZING COMPOSITION, AND PVC-COMPOSITION CONTAINING COMPOSITE ESTER COMPOUND OR PLASTICIZING COMPOSITION | 2020 |
|
RU2776848C2 |
| METHOD OF POLYESTER PURIFICATION | 0 |
|
SU840056A1 |
