Patent ID: 11931487
Assignee: ENVIROSCENT, INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  D | IPC A

Claim 19:
20. An article comprising:
a pulp base material having an outer surface and comprising:
fibers and pores formed between the fibers;
at least one low porosity zone having a first porosity, wherein the at least one low porosity zone is exposed on the outer surface of the base material; and
at least one high porosity zone having a second porosity, wherein the at least one high porosity zone is exposed on the outer surface of the base material adjacent the at least one low porosity zone,
wherein the first porosity is lower than the second porosity; and

a volatile composition comprising at least one top note component having a first volatility and at least one base note component having a second volatility, wherein the first volatility is higher than the second volatility,
wherein the volatile composition at least partially fills the pores of the base material and wherein the base material is configured to release the volatile composition at a release rate from both the at least one low porosity zone and the at least one high porosity zone, wherein the release rate of the volatile composition from the at least one high porosity zone is greater than the release rate of the volatile composition from the at least one low porosity zone.