US4289674A — Base-solubilized acrylic polymers and aqueous res…

Claim 1

Independent Claim 132 words

An aqueous, base-solubilized resinous dispersion in which the resinous phase comprises: (A) 15 to 90 percent by weight of an acrylic polymer which is formed by solution polymerizing in the absence of primary and secondary alcohols other than ethanol, the following monomer charge: (1) 15 to 85 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid, (2) 5 to 85 percent by weight of N-ethoxymethylacrylamide or N-ethoxymethylmethacrylamide, (3) 0 to 80 percent by weight of a copolymerizable vinyl monomer different from (1) and (2); the percentages by weight of (1), (2) and (3) being based on total weight of (1), (2) and (3); (B) 10 to 85 percent by weight of an epoxy resin; the percentages by weight of (A) and (B) being based on total weight of (A) and (B).

Claim 2

Dependent Claim 132 words

An aqueous, base-solubilized resinous dispersion in which the resinous phase comprises: (A) 15 to 90 percent by weight of an acrylic polymer which is formed by solution polymerizing in the absence of primary and secondary alcohols other than ethanol, the following monomer charge: (1) 15 to 85 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid, (2) 5 to 85 percent by weight of N-ethoxymethylacrylamide or N-ethoxymethylmethacrylamide, (3) 0 to 80 percent by weight of a copolymerizable vinyl monomer different from (1) and (2); the percentages by weight of (1), (2) and (3) being based on total weight of (1), (2) and (3); (B) 10 to 85 percent by weight of an epoxy resin; the percentages by weight of (A) and (B) being based on total weight of (A) and (B).

Claim 3

Dependent Claim 22 words

The aqueous resinous dispersion of claim 1 in which (A)(1) is selected from the class consisting of acrylic acid and methacrylic acid.

Claim 4

Dependent Claim 12 words

The aqueous resinous dispersion of claim 1 in which (A)(2) is N-ethoxymethylacrylamide.

Claim 5

Dependent Claim 12 words

The aqueous resinous dispersion of claim 1 in which (A)(3) is styrene.

Claim 6

Dependent Claim 17 words

The aqueous resinous dispersion of claim 1 in which (B) is a polyglycidyl ether of a polyphenol.

Claim 7

Dependent Claim 14 words

The aqueous resinous dispersion of claim 5 in which the polyphenol is Bisphenol A.

Claim 8

Dependent Claim 13 words

The aqueous resinous dispersion of claim 1 which additionally contains an aminoplast resin.

Claim 9

Dependent Claim 109 words

A base-solubilized acrylic polymer which is formed by solution polymerization in the absence of primary and secondary alcohols other than ethanol the following monomer charge: (1) 25 to 70 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid; (2) 15 to 50 percent by weight of N-ethoxymethylacrylamide or N-ethoxymethylmethacrylamide, measured as acrylamide or methacrylamide, respectively; (3) 20 to 60 percent by weight of a copolymerizable alpha, beta-ethylenically unsaturated monomer or mixture of monomers different from (1) and (2); the percentage by weight of (1), (2) and (3) being based on total weight of (1), (2) and (3); said acrylic polymer being at least partially neutralized with a base.

Claim 10

Dependent Claim 109 words

A base-solubilized acrylic polymer which is formed by solution polymerization in the absence of primary and secondary alcohols other than ethanol the following monomer charge: (1) 25 to 70 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid; (2) 15 to 50 percent by weight of N-ethoxymethylacrylamide or N-ethoxymethylmethacrylamide, measured as acrylamide or methacrylamide, respectively; (3) 20 to 60 percent by weight of a copolymerizable alpha, beta-ethylenically unsaturated monomer or mixture of monomers different from (1) and (2); the percentage by weight of (1), (2) and (3) being based on total weight of (1), (2) and (3); said acrylic polymer being at least partially neutralized with a base.

Claim 11

Dependent Claim 23 words

The base-solubilized acrylic polymer of claim 8 in which (1) is 30 to 60 percent by weight of alpha, beta-ethylenically unsaturated carboxylic acid.

Claim 12

Dependent Claim 15 words

The base-solubilized acrylic polymer of claims 8 or 9 in which the base is ammonia.

Claim 13

Dependent Claim 24 words

The base-solubilized acrylic polymer of claims 8 or 9 in which (1) is selected from the class consisting of acrylic acid and methacrylic acid.

Claim 14

Dependent Claim 14 words

The base-solubilized acrylic polymer of claims 8 or 9 in which (2) is N-ethoxymethylacrylamide.

Claim 15

Dependent Claim 14 words

The base-solubilized acrylic polymer of claims 8 or 9 in which (3) is styrene.

Claim 16

Independent Claim 133 words

A method for preparing an acrylic polymer comprising: (A) dissolving the following mixture of monomers in a solvent or a mixture of solvents which is free from primary and secondary alcoholic solvents other than ethanol: (1) 25 to 70 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid, (2) 15 to 50 percent by weight of N-ethoxymethylacrylamide or N-ethoxymethylmethacrylamide measured as acrylamide or methacrylamide, respectively, (3) 20 to 60 percent by weight of a copolymerizable alpha, beta-ethylenically unsaturated monomer or a mixture of monomers different from (1) and (2); the percentage by weight of (1), (2) and (3) being based on total weight of (1), (2) and (3), (B) polymerizing the dissolved mixture of monomers in the presence of a free radical initiator until the free monomer content is below 0.5 percent.

Claim 17

Independent Claim 133 words

A method for preparing an acrylic polymer comprising: (A) dissolving the following mixture of monomers in a solvent or a mixture of solvents which is free from primary and secondary alcoholic solvents other than ethanol: (1) 25 to 70 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid, (2) 15 to 50 percent by weight of N-ethoxymethylacrylamide or N-ethoxymethylmethacrylamide measured as acrylamide or methacrylamide, respectively, (3) 20 to 60 percent by weight of a copolymerizable alpha, beta-ethylenically unsaturated monomer or a mixture of monomers different from (1) and (2); the percentage by weight of (1), (2) and (3) being based on total weight of (1), (2) and (3), (B) polymerizing the dissolved mixture of monomers in the presence of a free radical initiator until the free monomer content is below 0.5 percent.

Claim 18

Dependent Claim 18 words

The method of claim 14 which further includes the step of neutralizing the acrylic polymer with a base.

Claim 19

Dependent Claim 11 words

The method of claim 15 in which the base is ammonia.

Claim 20

Dependent Claim 22 words

The method of claim 14 in which (1) is 30 to 60 percent by weight of an alpha, beta-ethylenically unsaturated carboxylic acid.

Claim 21

Independent Claim 22 words

The method of claims 14 or 15 in which (1) is selected from the class consisting of acrylic acid or methacrylic acid.

Claim 22

Independent Claim 12 words

The method of claims 14 or 15 in which (2) is N-ethoxymethylacrylamide.

Claim 23

Independent Claim 12 words

The method of claims 14 or 15 in which (3) is styrene.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1984-09-14	1985-03-16	1985-09-15	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1988-09-14	1989-03-16	1989-09-15	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1992-09-14	1993-03-16	1993-09-15	$7700.00	Window Closed / Lapsed

Base-solubilized acrylic polymers and aqueous resinous dispersions of acrylic polymers and epoxy resins

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