Polymer-clay nanocomposite comprising an amorphous oligomer
AssigneeUniversity of South Carolina Research Foundation
InventorsShriram Bagrodia, Linda Gail Bernard, Gary Wayne Connell, John Walker Gilmer, Tie Lan, James Christopher Matayabas, Jr., Jeffrey Todd Owens, Vasiliki Psihogios, Emerson Eston Sharpe, Jr., Sam Richard Turner
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Abstract
This invention is directed to a polymer-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polymer-clay nanocomposite. The polymer-clay nanocomposite comprises (a) a matrix polymer, (b) an amorphous oligomer, and (c) a layered clay material.
Claims30
A polymer-clay nanocomposite comprising:
- (a) a matrix polymer;
- (b) an amorphous oligomer;
- and
- (c) a layered clay material, or residue thereof;
- wherein the polymer-clay nanocomposite does not simultaneously comprise
- (i) an amorphous matrix polyamide comprising (a) a residue of at least one dicarboxylic acid component and (b) a residue of at least one diamine component;
- or poly(m-xylylene adipamide) and
- (ii) an amorphous matrix polyamide-compatible oligomeric resin, or oligomeric (m-xylylene adipamide).
A process for preparing a polymer-clay nanocomposite comprising the steps of:
- (a) melt mixing a layered clay material with an amorphous oligomeric resin, to form an oligomeric resin-clay composite;
- and
- (b) mixing the oligomeric resin-clay composite with a matrix polymer to produce the polymer-clay nanocomposite;
- wherein the polymer-clay nanocomposite does not simultaneously comprise
- (1) an amorphous matrix polyamide comprising (i) a residue of at least one dicarboxylic acid component and (ii) a residue of at least one diamine component;
- or poly(m-xylylene adipamide) and
- (2) an amorphous matrix polyamide-compatible oligomeric resin, or oligomeric (m-xylylene adipamide.
A process for preparing polymer-clay nanocomposite comprising melt mixing a layered clay material, an amorphous oligomeric resin, and a matrix polymer, to produce the polymer-clay nanocomposite material, wherein the polymer-clay nanocomposite does not simultaneously comprise
- (a) an amorphous matrix polyamide comprising (i) a residue of at least one dicarboxylic acid component and (ii) a residue of at least one diamine component, or poly(m-xylylene adipamide);
- and
- (b) an amorphous matrix polyamide-compatible oligomeric resin, or oligomeric (m-xylylene adipamide).
A polyamide-clay nanocomposite comprising:
- (1) a high molecular weight matrix polyamide, and incorporated therein
- (2) a layered clay material, wherein the clay material is dispersed in a matrix polyamide-compatible amorphous oligomeric resin.
Dependencies are inferred from the claim text.