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AssigneesBoard of Trustees of Michigan State University, Applied CarboChemicals
InventorsKris A. Berglund, Parminder Agarwal, Qiuyue Yu, Adam Harant
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A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polyners prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal polymaleimide salts with particular ratios of C—N and C—C connected maleimide-derived monomer units which are dependent on the particular initiator used to synthesize the maleimide polymer. The alkali metal polymaleimide salts, which have chelating and anti-scaling properties, are useful as chelating agents and detergent builders and as such are suitable biodegradable replacements for synthetic polymers and sodium polyaspartate.
A process for the preparation of an alkali metal polymaleimide salt which comprises:
A process for the preparation of an alkali metal polymaleimide salt which comprises:
An alkali metal polymaleimide salt which comprises mixed C—C and C—N bonds between the maleimide-derived units of the alkali metal polymaleimide salt.
In a detergent composition, the improvement which comprises an alkali metal polymaleimide salt which comprises mixed C—C and C—N bonds between maleimide-derived units of the alkali metal polymaleimide salt, wherein the alkali metal polymaleimide salt exchanges the alkali metal with calcium ions in water containing the detergent.
A process for the preparation of a maleimide polymer having mixed C—C and C—N bonds between maleimide-derived units of the maleimide polymer which comprises:
A process for the preparation of a maleimide polymer having mixed C—C and C—N bonds between maleimide-derived units of the maleimide polymer which comprises:
Dependencies are inferred from the claim text.