Aminosiloxane polymer and method of forming

1. An aminosiloxane polymer comprising at least one Si-bonded functional group having the chemical formula:

—(R—NH) a —R 1 —N(R 2 )—CH(—COOH)(—R 3 —C(═O)—NR 4 2 )  (I)

wherein R is a C 1 -C 10 hydrocarbon group; R 1 is a C 1 -C 10 hydrocarbon group; R 2 is a hydrogen atom, a C 1 -C 12 hydrocarbon group, or a phenyl group; R 3 is a C 1 -C 4 hydrocarbon group; each R 4 is independently a hydrogen atom, a C 1 -C 12 hydrocarbon group, a C 1 -C 12 hydroxyl-hydrocarbon group, or a phenyl group; and “a” is 0 or 1.

2. The aminosiloxane polymer of claim 1 that is the reaction product of:

(A) a polyorganosiloxane having an amino group; and

(B) a reaction product of; i) an alkylamine and/or alkanolamine, and ii) an alkenyl cyclic anhydride.

3. The aminosiloxane polymer of claim 2 , wherein said (A) polyorganosiloxane having the amino group has the chemical structure:

wherein each of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 is independently OH, R′(OR″) m or R′OH, where “m” is 1 to 3, and each of R′ and R″ is independently an alkyl group, a C 1 -C 12 hydrocarbon group, a C 2 -C 30 alkenyl group, a C 6 -C 12 aromatic group, or a polyalkyleneoxy group; “x” is from 1 to 3,000; “y” is from 1 to 100; and R 14 comprises the amino group.

4. The aminosiloxane polymer of claim 2 , wherein said amino group of component (A) comprises:

i) a NH 2 moiety bonded to a linear, branched, or cyclic hydrocarbon having 1 to 6 carbon atoms and said linear, branched, or cyclic hydrocarbon is bonded to a Si atom of component (A); or

ii) one or more NH 2 , NH, or NHR′, moieties, where R′ is an alkyl group.

5. The aminosiloxane polymer of claim 2 , wherein:

i) said alkylamine of component (B) comprises at least one NH moiety and at least one carbon chain having 3 to 12 carbon atoms;

ii) said alkanolamine of component (B) comprises one or two hydroxyl groups; or

iii) both i) and ii).

6. The aminosiloxane polymer of claim 1 , wherein said Si-bonded functional group has the chemical structure:

7. The aminosiloxane polymer of claim 1 , having the chemical structure:

wherein each of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 is independently OH, R′(OR″) m , or R′OH, where “m” is 1 to 3, and each of R′ and R″ is independently an alkyl group, a C 1 -C 12 hydrocarbon group, a C 2 -C 30 alkenyl group, a C 6 -C 12 aromatic group, or a polyalkyleneoxy group; “x” is from 1 to 3,000; “y” is from 1 to 100; and “A” is said Si-bonded functional group.

8. An emulsion comprising:

I) a liquid continuous phase; and

II) a dispersed phase comprising an aminosiloxane polymer comprising at least one Si-bonded functional group having the chemical formula:

—(R—NH) a —R 1 —N(R 2 )—CH(—COOH)(—R 3 —C(═O)—NR 4 2 )  (I)

wherein R is a C 1 -C 10 hydrocarbon group; R 1 is a C 1 -C 10 hydrocarbon group; R 2 is a hydrogen atom, a C 1 -C 12 hydrocarbon group, or a phenyl group; R 3 is a C 1 -C 4 hydrocarbon group; each R 4 is independently a hydrogen atom, a C 1 -C 12 hydrocarbon group, a C 1 -C 12 hydroxyl-hydrocarbon group, or a phenyl group; and “a” is 0 or 1.

9. The emulsion of claim 8 , wherein said aminosiloxane polymer of said dispersed phase:

i) is a liquid; and/or

ii) is present as particles dispersed in said continuous phase and said dispersed particles have a size of less than about 15 μm; and/or

iii) is present in said emulsion in an amount of from 10 to 90 parts by weight per 100 parts by weight of said emulsion.

10. The emulsion of claim 8 , further comprising a polydialkylsiloxane having a weight average molecular weight (M w ) of up to 1,000,000 g/mol, and wherein a ratio of said polydialkylsiloxane to said aminosiloxane polymer is from about 0.1 to 100.

11. A composition comprising the aminosiloxane polymer as set forth in claim 1 , said composition chosen from personal care compositions, cosmetic compositions, fabric treating compositions, fiber treating compositions, hair care compositions, fiber care compositions, and combinations thereof.

12. A method of forming an aminosiloxane polymer comprising at least one Si-bonded functional group, said method comprising the steps of:

providing a polyorganosiloxane having an amino group;

providing an alkylamine and/or an alkanolamine;

providing an alkenyl cyclic anhydride;

reacting i) the alkylamine and/or alkanolamine and ii) the alkenyl cyclic anhydride to form an intermediate; and

reacting the intermediate and the polyorganosiloxane having the amino group to form the aminosiloxane polymer;

the Si-bonded functional group having the chemical formula:

—(R—NH) a —R 1 —N(R 2 )—CH(—COOH)(—R 3 —C(═O)—NR 4 2 )  (I)

wherein R is a C 1 -C 10 hydrocarbon group; R 1 is a C 1 -C 10 hydrocarbon group; R 2 is a hydrogen atom, a C 1 -C 12 hydrocarbon group, or a phenyl group, R 3 is a C 1 -C 4 hydrocarbon group; each R 4 is independently a hydrogen atom, C 1 -C 12 hydrocarbon group, a C 1 -C 12 hydroxyl-hydrocarbon group, or a phenyl group; and “a” is 0 or 1.

13. The method of claim 12 , wherein the step of providing the polyorganosiloxane having the amino group is further defined as:

providing a first emulsion comprising a first continuous phase and a first dispersed phase comprising the polyorganosiloxane having the amino group;

wherein the step of reacting the intermediate and the polyorganosiloxane having the amino group is further defined as:

adding the intermediate to the first emulsion to form a second emulsion and heating the second emulsion to a temperature of about 20° C. to 80° C. to form the aminosiloxane polymer in-situ in the second emulsion; and

wherein the second emulsion comprises a second continuous phase and a second dispersed phase comprising the aminosiloxane polymer.

14. The method of claim 13 , wherein the first dispersed phase and/or the second dispersed phase further comprise a polydialkylsiloxane having a weight average molecular weight (M w ) of up to 1,000,000 g/mol and a ratio of the polydialkylsiloxane to the aminosiloxane polymer is from about 0.1 to 100.

15. The method of claim 13 , wherein:

i) the polyorganosiloxane having the amino group is present in the first dispersed phase of the first emulsion in an amount of from about 10 to 70 parts by weight per 100 parts by weight of the first emulsion; and/or

ii) the polyorganosiloxane having the amino group is present in the second dispersed phase of the second emulsion in an amount of from about 10 to 70 parts by weight per 100 parts by weight of the second emulsion; and/or

iii) the intermediate is present in the second dispersed phase of the second emulsion in an amount of from about 0.1 to 30 parts by weight per 100 parts by weight of the second emulsion.

16. The aminosiloxane polymer of claim 2 , wherein:

i) said alkylamine of component (B) comprises at least one NH moiety and at least one carbon chain having 3 to 12 carbon atoms;

ii) said alkanolamine of component (B) comprises a single NH moiety and 2 to 5 hydroxyl groups; or

iii) both i) and ii).

17. The aminosiloxane polymer of claim 6 , having the chemical structure:

wherein each of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 is independently OH, R′(OR″) m , or R′OH, where “m” is 1 to 3, and each of R′ and R″ is independently an alkyl group, a C 1 -C 12 hydrocarbon group, a C 2 -C 30 alkenyl group, a C 6 -C 12 aromatic group, or a polyalkyleneoxy group; “x” is from 1 to 3,000; “y” is from 1 to 100; and “A” is said Si-bonded functional group.

18. The emulsion of claim 9 , further comprising a polydialkylsiloxane having a weight average molecular weight (M w ) of up to 1,000,000 g/mol, and wherein a ratio of said polydialkylsiloxane to said aminosiloxane polymer is from about 0.1 to 100.

19. A composition comprising the emulsion as set forth in claim 8 , said composition chosen from personal care compositions, cosmetic compositions, fabric treating compositions, fiber treating compositions, hair care compositions, fiber care compositions, and combinations thereof.

20. The method of claim 13 , wherein the second dispersed phase further comprises a polydialkylsiloxane having a weight average molecular weight (M w ) of up to 1,000,000 g/mol and a ratio of the polydialkylsiloxane to the aminosiloxane polymer is from about 0.1 to 100.