Invista North America S.a.r.l.

E.i. Dupont De Nemours and Company

Invista Technologies S.a.r.l.

Edwin L McInnis

Qun Sun

Daniel Campos

Donald Allan Sandusky

Hari Babu Sunkara

The present invention relates to a novel method for compatibilizing, i.e. improving miscibility of, otherwise immiscible organic materials highly useful in the fibers industry, as well as the compatibilized product of the method. These compatibilized products are stable in the liquid phase at temperatures ranging from about 40&#xb0; C. to about 200&#xb0; C. The method involves use of a glycol derived from polymerization of alkylene oxide and tetrahydrofuran, the alkylene oxide having from 2 to 4 carbon atoms, i.e. poly(tetramethylene-co-alkyleneether) glycol, in the mixture.

Miscibility of otherwise immiscible compounds

Disclosed herein are barrier articles of polyurethane blends or alloys that limit the permeability of gases there through, particularly as used in inflatable sports articles and more particularly as used in soccer balls.

Alloy blends of polyurethane and latex rubber

Polyurethanes or polyurethane-ureas prepared from: (a) polytrimethylene ether glycol having a number average molecular weight in the range of about 1,000 to about 4,000 and unsaturated end groups in the range of about 0.003 to about 0.015 meq/g; (b) diisocyanate; and (c) diol or diamine chain extender; and their manufacture, intermediates and use.

Growing community of inventors

Zachary, LA, United States of America

Edwin L McInnis