Non-textile polymer compositions and methods
AssigneeInvista North America S.A.R.L.
InventorsCharles Iavarone, James Lambert, Hong Liu, Sonia Menot, Federica Stoppa
Life of this patent
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Abstract
Included are polymer compositions such as polyurethaneureas, polyamides and polyesters. The compositions may be in a variety of forms such as dispersions, powders, fibers, and beads. The compositions are useful in the preparation of many products including health and beauty products such as cosmetics, paint, household products such as fabric care compositions, apparel/footwear and textiles/furnishings.
Claims17
1-24. (canceled)
A method of preparing a polyurethaneurea powder comprising:
- (a) providing an aqueous polyurethaneurea dispers ion;
- (b) filtering the dispersion to obtain polyurethaneurea particles;
- and
- (c) grinding the particles to a desired size.
A method of preparing a polyurethaneurea powder comprising:
- (a) providing an aqueous polyurethaneurea dispers ion;
- and
- (b) spray-drying the dispersion to obtain a polyurethaneurea powder having a preselected average particle size.
A method of dyeing a powder composition comprising:
- (a) providing a polyamide or polyester composition;
- (b) adding said powder to a dyebath;
- and
- (c) filtering and drying said composition.
28-31. (canceled)
A composition comprising a polyurethaneurea bead, wherein said bead has a void content of less than 60% or greater than 90%.
A composition comprising a cosmetic composition and at least one of a polyurethaneurea composition, a polyamide composition, and a polyester composition.
A composition comprising a polyurethaneurea powder;
- said powder comprising an isocyanate group terminated prepolymer dispersed and chain extended in water.
A polyurethaneurea powder containing less than 2% of an organic liquid that is substantially inert to the polyurethaneurea.
A method of extending perfume substantiation in a cosmetic composition comprising preparing a cosmetic composition including (a) a polyurethaneurea in a form selected from a powder, a dispersion and mixtures thereof;
- and (b) a fragrance.
A method of extending perfume substantiation on a household composition comprising preparing a household composition comprising (a) a polyurethaneurea in a form selected from a powder, a dispersion and mixtures thereof;
- and (b) a fragrance.
Dependencies are inferred from the claim text.