Air-curing copolymer latices
US4144212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1978 |
| Grant date | Mar 13, 1979 |
| Priority date | — |
| Expiry date | Mar 6, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Air-curing copolymer latices are described. The preferred copolymer latices are prepared by emulsion copolymerization, in the presence of a free radical polymerization catalyst such as inorganic or organic peroxide polymerization catalysts, with a blend (in % by weight based on the total weight of all monomers used) of (a) about 1% to about 20% of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate, (b) about 99% to about 20% of an alkyl acrylate or methacrylate, including mixtures of such monomers, and preferably a lower alkyl acrylate or methacrylate in which the alkyl groups contain from 1 to 4 carbon atoms, (c) 0% to about 5% of acrylic acid or methacrylic acid, and (d) 0% to about 85% of other monoethylenically unsaturated copolymerizable monomers. As examples of other copolymerizable monomers which may be used as component (d) may be mentioned: higher alkyl acrylates and methacrylates in which the alkyl groups contain from 5 to about 18 carbon atoms, acrylamide, methacrylamide, acrylonitrile or methacrylonitrile; also vinyl esters (e.g. vinyl acetate, vinyl propionate of vinyl chloride), styrene and alkyl vinyl ethers. The novel air-curing latices of the present in…
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