IP Library Granted Patent US 9,315,631
Granted Patent B2
US 9,315,631 · App. 14/371,217 · Granted Apr 19, 2016

Methods of making saccharide siloxane copolymers

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Quick Facts
Patent No.
US 9,315,631
App. No.
14/371,217
Granted
Apr 19, 2016
Kind
B2
Abstract

A method of making a saccharide siloxane copolymer includes reacting an amine functional saccharide with an epoxy functional silane containing at least one condensable or hydrolysable group. This product is reacted with an oligomer to form the saccharide siloxane copolymer.

Claims (23)

1. A method of making a saccharide siloxane copolymer, the method comprising:

(a) reacting an amine functional saccharide with an epoxy functional silane containing at least one condensable or hydrolysable group, the epoxy functional silane containing at least one condensable or hydrolysable group being an epoxy functional mono or di-alkoxy silane;

(b) reacting the product of step (a) with an oligomer to form the saccharide siloxane copolymer; and

(c) optionally, further including an endcapper to form the saccharide siloxane copolymer.

2. The method of claim 1 , wherein the amine functional saccharide is selected from the group consisting of N-methylglucamine, N-ethylglucamine and mixtures thereof.

3. The method of claim 1 , wherein the amine functional saccharide is selected from the group consisting of glucosamine, galactosamine, muramic acid, mannosamine, chitosan, a chitosan monomer, a chitosan oligomer, meglumine or mixtures thereof.

4. The method of claim 1 , wherein the epoxy functional silane containing at least one condensable or hydrolysable group is a glycidoxypropyl functional silane.

5. The method of claim 1 , wherein the epoxy functional silane containing at least one condensable or hydrolysable group is an epoxycyclohexylethyl functional silane, an epoxy alkane or a limonene epoxide functional silane.

6. The method of claim 1 , further including an endcapper to form the saccharide siloxane copolymer, the endcapper being trimethyl alkoxysilane.

7. The method of claim 1 , wherein the oligomer is a partially capped siloxane.

8. The method of claim 1 , wherein the oligomer is a cyclic siloxane or a disilanol siloxane.

9. The method of claim 1 , wherein step (b) includes reacting the product of step (a) with capped and uncapped oligomers.

10. The method of claim 1 , wherein step (b) includes reacting the product of step (a) with a silane endcapper and an uncapped oligomer.

11. The method of claim 1 , wherein the saccharide siloxane copolymer is an emulsion.

12. The method of claim 1 , wherein step (b) further includes using an acid or base catalyst.

13. A method of making a saccharide siloxane copolymer, the method comprising:

(a) reacting N-methylglucamine, N-ethylglucamine or a mixture thereof with an epoxy functional mono or di-alkoxy silane; and

(b) reacting the product of step (a) with a disilanol oligomer to form the saccharide siloxane copolymer.

14. The method of claim 2 , wherein the amine functional saccharide includes N-methylglucamine.

15. The method of claim 2 , wherein the amine functional saccharide includes N-ethylglucamine.

16. The method of claim 1 , wherein the reaction of step (a) is performed in a polar solvent.

17. The method of claim 16 , wherein the polar solvent includes methanol, ethanol, isopropanol, or any combination thereof.

18. The method of claim 1 , further including an endcapper to form the saccharide siloxane copolymer.

Assignments (2)
CHANGE OF NAME Recorded Feb 27, 2018
From: DOW CORNING CORPORATION
To: DOW SILICONES CORPORATION
Reel/Frame 045460/0278 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 9, 2014
From: JOFFRE, ERIC J.; TOMAR, ANIL K.
To: DOW CORNING CORPORATION
Reel/Frame 033270/0405 →