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US 2008/0269397 A1Published application
Coating Agents that are Devoid of Preservatives, Method for their Production and Use Thereof
AssigneeCelanese Emulsions GmbH
InventorsThomas Fichtner, Ivan Cabrera, Bernhard Momper
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Abstract
A description is given of coating compositions comprising at least one strongly basic agent to set a pH of at least 10, at least one selected vinyl ester copolymer, if desired, pigment and/or filler, and, if desired, further additives customary per se. The coating compositions can be stored without use of additional preservatives and can be used to coat substrates of all kinds.
Claims21
1-12. (canceled)
A preservative-free aqueous coating composition having a pH of at least 10, comprising
- a) at least one strongly basic agent to set the pH,
- b) at least one emulsion of a copolymer derived from
- A1) vinyl esters of aliphatic saturated carboxylic acids having a chain length of C1-C4,
- A2) alpha-olefins having 2 to 8 carbon atoms, and
- A3) vinyl esters of aliphatic saturated carboxylic acids having a chain length of C5-C18,
- A4) optionally, ethylenically unsaturated monomers containing silane groups, and
- A5) optionally, further comonomers,
- the sum of components A1, A2 and A3 and optionally components A4 and/or A5 making 100% by weight,
- c) optionally, pigment and/or filler, and
- d) optionally, further additives.
7 more elements
Dependencies are inferred from the claim text.