The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1989
Filed:
Dec. 23, 1987
Applicant:
Inventor:
Mark E Dillon, Southampton, PA (US);
Assignee:
Bio Med Sciences, Inc., Amherst, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L / ;
U.S. Cl.
CPC ...
128156 ; 128155 ; 604304 ; 428172 ; 523111 ; 424447 ;
Abstract
An improved bandage comprises a backing sheet constructed of a semi-interpenetrating polymer network. Use of a semi-interpenetrating polymer network allows for an extremely desirable combination of gas permeability and hydrostatic resistance. This construction of backing sheet provides for suitable vapor permeability and sufficient water impermeability because the pores therein are of a colloidal size range and the surface tension thereof results in the backing material being hydrophobic.