Polymer binder for intumescent coatings
US7105605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jul 28, 2024 |
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 a method of manufacturing an intumescent coating comprising the step of (a) dissolving a Newtonian and a reticulated copolymer in a solvent, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the solvent is selected from the group consisting of organic solvents and water, (b) optionally, adding a chlorinated paraffin to the solvent, (c) homogenizing the mixture in the solvent, wherein one or more additives selected from the group consisting of conventional reactive pigments systems, dispersants, plasti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.