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US 8,859,098 B2Granted
Acrylic adhesion promoters
AssigneeLord Corporation
InventorKirk J. Abbey
Life of this patent
Estimating the term…
Abstract
Acrylic adhesion promoters having an improved property such as cohesive failure are produced from a monocyclic anhydride of phosphonic acid containing multiple carboxylic acids that is subsequently reacted with a hydroxyalkyl methacrylate. The adhesion promoters are useful in bonding to metal substrates including oily metal substrates.
Claims22
A carboxylic acid containing phosphonic acid adhesion promoter comprising:
- a compound of the formula
- where R , independently, is an alkyl having from 1 to about 18 carbon atoms;
- R1, independently, is H, or an alkyl comprising from 1 to about 6 carbon atoms,
- R2, independently, is H, or an alkyl comprising from 1 to about 6 carbon atoms,
- R3, independently, is H, or an alkyl comprising from 1 to about 6 carbon atoms,
- R4, independently, is H, or an alkyl comprising from 1 to about 6 carbon atoms,
- R5, independently, is H, or an alkyl comprising from 1 to about 6 carbon atoms, and
- R6, independently, is H, or an alkyl comprising from 1 to about 6 carbon atoms;
- and
- wherein n, independently, is 0 or 1, and p, independently, is from about 1 to about 35.
7 more elements
Dependencies are inferred from the claim text.