Solidification matrices using phosphonocarboxylic acid copolymers and phosphonopolyacrylic acid homopolymers

A solid detergent composition comprising:

• a solidification matrix consisting of:
• (a) between about 0.1 wt-% and about 20 wt-% of the composition phosphonocarboxylic acid copolymer or phosphonopolyacrylic acid homopolymer, wherein the phosphonocarboxylic acid copolymer or phosphonopolyacrylie acid homopolymer polycarboxylic acid polymer has the following formula
• wherein m is 0 or larger and/or n is 2 or larger;
• (b) between about 0.1 wt-% and about 50 wt-% of the composition water;
• and
• (c) between about 40 wt-% and about 90 wt-% of the composition sodium carbonate;
• and
• between about 0.5 wt-% and about 10 wt-% of the composition surfactant;
• a detergent builder;
• wherein the solid detergent composition has less than about 0.5 wt-% phosphorus, and wherein the solid detergent composition is dimensionally stable and has a growth exponent of less than 3% if heated at a temperature of 122° F.

A method of forming a solid detergent composition, comprising:

• combining a hydratable salt, a detergent builder, and at least one functional component to form a powder pre-mix;
• and
• mixing the powder pre-mix with a liquid pre-mix, the liquid pre-mix comprising phosphonocarboxylic acid copolymer or phosphonopolyacrylic acid homopolymer and water, wherein the phosphonocarboxylic acid copolymer or phosphonopolyacrylic acid homopolymer polycarboxylic acid polymer has the following formula
• wherein R1 is a phosphono end group,
• forming a solid detergent comprising a solidification matrix consisting of
• (a) the phosphonocarboxylic acid copolymer or phosphonopolyacrylic acid homopolymer;
• (b) the hydratable salt;
• and
• (c) the water;
• and
• wherein if heated at a temperature of 122° F., the solid detergent composition is dimensionally stable and has a growth exponent of less than 3%.