Back to results
US 12,728,179 B2Granted
Fragrance-containing crosslinked gels
AssigneeAmtek Research International LLC
InventorsDaniel Wandera, Richard W. Pekala, Wyatt Self
Life of this patent
Estimating the term…
Abstract
Spill-resistant gels with fragrance immobilized within a covalently cross-linked matrix and composites containing the spill-resistant gels are disclosed herein. The covalently cross-linked gel provides low diffusive resistance, but high spill resistance.
Claims14
A spill-resistant gel comprising:
- from 60 to 95 wt % of a fragrance;
- and
- a covalently cross-linked matrix comprising a polymer network, the polymer network comprising hydroxyethyl methacrylate;
- wherein the fragrance is immobilized within the covalently cross-linked matrix and diffusively releasable from the matrix.
1 more element
A composite, comprising:
- a spill-resistant gel comprising:
- from 60 to 95 wt % of a fragrance;
- and
- a covalently cross-linked matrix comprising a polymer network, the polymer network comprising hydroxyethyl methacrylate;
- wherein the fragrance is immobilized within the covalently cross-linked matrix and diffusively releasable from the matrix;
- and
- a freestanding porous substrate with the spill-resistant gel formed at least partially on a surface of the substrate, at least partially within pores of the substrate, or both.
4 more elements
A method of forming a spill-resistant gel, the method comprising:
- mixing hydroxyethyl methacrylate monomers with a liquid phase comprising a fragrance;
- and
- reacting the monomers to form a covalently cross-linked matrix that immobilizes the liquid phase, thereby forming the spill-resistant gel.
Dependencies are inferred from the claim text.