Claims
- 1. A carboxyl-functional amide having acrylate functionality which is an adduct of a polyacrylate and a stoichiometric deficiency of a primary amine having a molecular weight of about 50 to about 8,000 to provide a secondary amine having acrylate functionality, the formation of said secondary amine being carried out at a temperature which leaves the secondary amino hydrogen atoms largely unreacted, said secondary amino hydrogen atoms being reacted with a polycarboxylic acid anhydride to form amide groups therewith, thereby providing carboxyl groups.
- 2. A carboxyl-functional amide as recited in claim 1 in which about one molar proportion of primary amine is adducted with said polyacrylate to form one molar proportion of secondary amine which is reacted with one molar proportion of polycarboxylic acid anhydride.
- 3. A carboxyl-functional amide as recited in claim 2 in which said amine is a polyoxypropylene monoprimary amine, and said anhydride is maleic anhydride.
- 4. A carboxyl-functional amide as recited in claim 3 in which said polyacrylate is pentaerythritol triacrylate.
- 5. A carboxyl-functional amide as recited in claim 1 in which said adduct is formed at a temperature in the range of 50.degree. C. to 70.degree. C.
Parent Case Info
This application is a division of application Ser. No. 720,251 filed Apr. 5, 1985, now U.S. Pat. No. 4,673,705.
US Referenced Citations (4)
Divisions (1)
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Number |
Date |
Country |
Parent |
720251 |
Apr 1985 |
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