Coating compositions containing non-aqueous dispersed polymers having a high glass transition temperature
US5763528A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coating composition of a film forming binder and an organic liquid carrier; wherein the binder contains about PA1 (a) 10-90% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having a glass transition temperature of at least 20.degree. and the polymer has PA2 (i) a core of comprising polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto PA2 (ii) substantially linear stablizier polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylencially unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC; PA1 wherein the monomers of the core and the stabilizer polymeric components are individually selected from the following group of monomers: alkyl methacrylates, alkyl acrylates, wherein the alkyl groups have 1-12 carbon atoms, hydroxy alkyl methacrylate, hydroxy alkyl acrylates, wherein the alkyl groups have 1-4 carbons atoms, styrene, alpha methyl styrene, vinyl toluene, glycidyl methacrylate, glycidyl acrylate, alpha-beta ethylenically unsaturated monocarboxylic acids and any mixtures…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.