Graft polymers and compositions of high impact strength
US4078018A · kind A · utility
16Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1974 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Jul 10, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F279/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Graft polymers based upon butadiene, alkyl acrylate, methyl methacrylate and styrene, for the improvement of the impact strength of homo- or co-polymers of vinyl chloride. Use is made of a backbone polymer formed of a butadiene-alkyl acrylate copolymer which is agglomerated and grafted with methyl methacrylate, styrene and possibly a cross-linking monomer. The composition, mixtures of homo- or co-polymers of vinyl chloride and graft polymers are usable for the manufacture of plates, bottles, wrapping sheets and bottles for packaging liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.