Polymer binder for intumescent coatings
US7288588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2006 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units. The present invention further reveals an intumescent coating which is comprised of a copolymer composition comprising a blend of a Newtonian copolymer, a reticulated copolymer, a film-forming substance, and a carbon forming substance, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.