Polyolefin plastic compositions comprising meta- or papa-derivatives (choro- or bromo-) of di-benzyuidene sorbitol
US4371645A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1981 |
| Grant date | Feb 1, 1983 |
| Priority date | — |
| Expiry date | Jul 29, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/1575
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyolefin plastic composition having improved transparency is provided which comprises a polymer selected from aliphatic polyolefins and copolymers containing at least one aliphatic olefin and one or more ethylenically unsaturated aliphatic comonomers, and a di-acetal of sorbitol in an amount sufficient to improve transparency; said di-acetal of sorbitol having the structure: ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected from hydrogen, lower alkyl, hydroxy, methoxy, mono- and di-alkylamino, nitro and halogen, with the proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is chlorine or bromine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.