Acrylic composition having an increased resistance to alcohols, oils and fats
US11807699B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2019 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Oct 6, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A transparent acrylic-based polymer composition has an increased resistance to alcohols, oils and fats. The polymer composition contains: (A) a copolymer of alkyl(meth)acrylates, aromatic vinyl monomer and unsaturated carboxylic acid anhydride; (B) a copolymer containing aromatic vinyl monomer and a vinyl cyanide monomer; and (C) a particulate core-shell type graft copolymer containing a butadiene-based core as a rubbery phase and a copolymer containing alkyl(meth)acrylates and, optionally, aromatic vinyl monomer as a hard phase. The components A and B form a polymer matrix and the particulate core-shell type graft copolymer C is dispersed in said polymer matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.