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:
Apr. 28, 1992
Filed:
Dec. 08, 1989
Applicant:
Inventor:
Lloyd S White, Columbia, MD (US);
Assignee:
Allied-Signal Inc., Morris Twp., Morris Cty, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
604368 ;
Abstract
An absorbent article comprising a cellulosic membrane about 5 to 50 .mu.m thick prepared by casting a film from solution of a cellulose derivative in a suitable solution and these formed into a packet which encapsulates an osmotic promoter, particularly sodium chloride, sugar or other suitable compound, preferably having a molecular weight below about 500. The packet is capable of taking up at least 0.001 g/cm.sup.2 /min of water and retaining it against an external pressure of at least 0.689 kPa.
Published as:
CA2069487A1; WO9108778A1; AU6897791A; US5108383A; EP0504228A1; AU631475B2; KR920703130A; JPH05502598A; EP0504228B1; ATE126446T1; DE69021738D1;