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US 7,514,528 B2Granted
Biomass based Michael addition compositions
AssigneeRohm and Haas Company
InventorsThomas Frederick Kauffman, David William Whitman, Michael John Zajaczkowski, David Elmer Vietti
Life of this patent
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Abstract
Functional mixtures and polymer compositions are provided, each comprising at least one multi-functional Michael acceptor, at least one multi-functional Michael donor, in which at least 20% of either the donor or acceptor or a combination of the donor and acceptor is derived from bio-based materials and at least one catalyst.
Claims19
A functional mixture comprising:
- (i) at least one multi-functional Michael acceptor;
- (ii) at least one multi-functional Michael donor;
- and
- (iii) at least one weakly basic catalyst, wherein the pKa of the conjugate acid of said weakly basic catalyst is 5.5 or less;
- wherein the at least one Michael acceptor is present in an amount greater than 20% by weight, based on the total weight of the functional mixture and whose chemical backbone is derived from bio-based feedstock.
2 more elements
A functional mixture comprising:
- (i) at least one multi-functional Michael acceptor;
- (ii) at least one multi-functional Michael donor;
- and
- (iii) at least one basic catalyst;
- wherein the at least one Michael acceptor is present in an amount greater than 20% by weight, based on the total weight of the functional mixture and whose chemical backbone is derived from bio-based feedstock, wherein said feedstock comprises epoxidized crop oils.
2 more elements
A functional mixture comprising:
- (i) at least one multi-functional Michael acceptor;
- (ii) at least one multi-functional Michael donor;
- and
- (iii) at least one basic catalyst, wherein the pKa of the conjugate acid of said weakly basic catalyst is 5.5 or less;
- wherein the at least one Michael donor is present in an amount greater than 20% by weight, based on the total weight of the functional mixture and whose chemical backbone is derived from bio-based feedstock.
2 more elements
A functional mixture comprising:
- (i) at least one multi-functional Michael acceptor,
- (ii) at least one multi-functional Michael donor;
- and
- (iii) at least one weakly basic catalyst, wherein the pKa of the conjugate acid of said weakly basic catalyst is 5.5 or less;
- wherein the sum of the weights of the donor and acceptor whose chemical backbone is derived from bio-based feedstock are greater than 20% by weight, based on the total weight of the functional mixture, and wherein the catalyst is selected from the group consisting of sodium salts of carboxylic acids, magnesium salts of carboxylic acids, aluminum salts of carboxylic acids, chromium salts of alkyl carboxylic acids having 6 or fewer carbon atoms, chromium salts of aromatic carboxylic acids, potassium salts of alkyl mono-carboxylic acids having 6 or fewer carbon atoms, potassium salts of multi-carboxylic acids, potassium salts of phosphoric acid esters, and mixtures thereof.
2 more elements
Dependencies are inferred from the claim text.