Novel acrylic polymers and the Michael adducts thereof useful in coating applications

Claim 2

A resinous composition comprising: (a) a polymer characterized by at least one pendant group of the formula ##STR11## wherein R 1 , R 2 , R 4 , and R 9 , each independently, is a hydrogen or an alkyl group containing from about 1 to about 6 carbon atoms; wherein X represents a moiety --O--R 10 --O-- of which R 10 is an alkylene group containing from about 1 to 6 carbon atoms; and wherein the radical ##STR12## is derived from ammonia, a primary amine or secondary amine.

Claim 3

A resinous composition of claim 1 which is acrylic resinous composition.

Claim 4

A resinous composition of claim 1, wherein R 5 and R 6 , each independently, is hydrogen, or an alkyl group including substituted alkyl containing from about 1 to about 18 carbon atoms.

Claim 5

A resinous composition of claim 1 which is at least partially neutralized with an acid.

Claim 6

An aqueous dispersion comprising the resinous composition of claim 4.

Claim 7

An aqueous dispersion of claim 5 which contains about 1 to 50% resin solids.

Claim 8

A process for preparing a polymer characterized by at least one pendant group of the formula: ##STR13## X represents a moiety ##STR14## of which R 3 is a hydrogen, or an alkyl group containing from about 1 to 6 carbon atoms, or a moiety --O--R 10 --O-- of which R 10 is an alkylene group containing from about 1 to 6 carbon atoms, said process comprising the steps of: (a) preparing a polymer characterized by at least one pendant group of the formula: ##STR15## wherein R 1 and R 2 , each independently, is hydrogen or an alkyl group containing from about 1 to about 6 carbon atoms and R 7 is an alkyl containing from about 3 to about 6 carbon atoms; and (b) condensing said polymer in the presence of an acid catalyst with an alpha, beta-ethylenically unsaturated amide of the formula: ##STR16## wherein R 3 , R 4 and R 9 , each independently, is a hydrogen or an alkyl group containing from about 1 to 6 carbon atoms, or an alpha, beta-ethylenically unsaturated ester of the formula: ##STR17## wherein R 4 and R 9 are as described above and wherein R 10 is an alkylene group containing from about 2 to 6 carbon atoms.

Claim 9

A process for preparing a polymer characterized by at least one pendant group of the formula: ##STR13## X represents a moiety ##STR14## of which R 3 is a hydrogen, or an alkyl group containing from about 1 to 6 carbon atoms, or a moiety --O--R 10 --O-- of which R 10 is an alkylene group containing from about 1 to 6 carbon atoms, said process comprising the steps of: (a) preparing a polymer characterized by at least one pendant group of the formula: ##STR15## wherein R 1 and R 2 , each independently, is hydrogen or an alkyl group containing from about 1 to about 6 carbon atoms and R 7 is an alkyl containing from about 3 to about 6 carbon atoms; and (b) condensing said polymer in the presence of an acid catalyst with an alpha, beta-ethylenically unsaturated amide of the formula: ##STR16## wherein R 3 , R 4 and R 9 , each independently, is a hydrogen or an alkyl group containing from about 1 to 6 carbon atoms, or an alpha, beta-ethylenically unsaturated ester of the formula: ##STR17## wherein R 4 and R 9 are as described above and wherein R 10 is an alkylene group containing from about 2 to 6 carbon atoms.

Claim 10

A process of claim 7 wherein the acid catalyst is methanesulfonic acid.

Claim 11

A process according to claim 7, wherein the polymer is an acrylic copolymer.

Claim 12

A process of claim 7, wherein R 1 , R 2 , R 3 , R 4 , and R 9 , each independently, is hydrogen or an alkyl group containing from about 1 to 4 carbon atoms; R 7 is an alkyl group containing 3 or 4 carbon atoms and R 10 is an alkylene group containing from about 2 to 4 carbon atoms.

Claim 13

A process of claim 10 wherein R 1 , R 2 , R 3 and R 4 , each independently, is hydrogen or methyl; R 9 is hydrogen; R 7 is an alkyl group containing 4 carbon atoms and R 10 is ethylene.

Claim 14

A process for preparing the resinous composition of claim 7; said process comprising a step of aminating with ammonia, a primary or secondary amine, a polymer characterized by at least one pendant group of the formula ##STR18## wherein X represents a moiety ##STR19## of which R 3 is a hydrogen, or an alkyl group containing from about 1 to 6 carbon atoms, or a moiety --O--R 10 --O-- of which R 10 is an alkylene group containing from about 1 to 6 carbon atoms.

Claim 15

A process of claim 12 which further comprises the step of at least partially acid-neutralizing the aminated polymer.