Resources Contact Us Home
Insoluble powder, powder for restoring barrier function of skin, powder for preventing/mitigating skin chapping, and preparation containing the same for external use on skin

Image Number 19 for United States Patent #7785636.

A first subject of the present invention is an insoluble powder characterized in that a zeta-potential is a negative value.It is preferable that barium sulfate is a main ingredient in the insoluble powder.It is preferable that an average primary particle diameter is 3 to 100 .mu.m, and an aspect ratio is 3 to 250 in the insoluble powder.It is preferable that the insoluble powder is a metal-doped barium sulfate powder obtained by reacting a barium ion and a sulfate ion in the presence of a metal ion.It is preferable that the metal ion is one or more selected from the group consisting of a lithium ion, a sodium ion and a zinc ion in the insoluble powder.A second subject of the present invention is a skin barrier function recovering powder, or a skin roughening preventing and improving powder, which comprises the aforementioned powder.A third subject of the present invention is a skin external composition characterized in that a content of the aforementioned powder is 1 to 40% by weight.

  Recently Added Patents
Parallel active optical cable
Rechargeable battery including a channel member
Transmission channel for ultrasound applications
High performance design rule checking technique
Compounds for the reduction of .beta.-amyloid production
Charged particle source with integrated electrostatic energy filter
Method and apparatus for compensating QoS during handover by base station in wireless broadband access system
  Randomly Featured Patents
Self-retracting step
Spherical bearing for a steering joint
Scraper with rotating blade for engaging a rotating disk
Interface device for the transfer of fluid products between two containers
2-(3-Morpholinopropyl)-5,6-dimethoxy indazole
Connector for multistranded insulated conductor cable
Procedure for manufacturing short-chain linear .alpha.-olefines from ethylene
Television receiver
Atomic force microscope apparatus
Method and device for synthesising an electrical architecture