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, 1998
Filed:
Jan. 17, 1995
Applicant:
Inventors:
John Langley, West Yorkshire, GB;
Kenneth Charles Symes, West Yorkshire, GB;
Assignee:
Allied Colloids Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; A61K / ;
U.S. Cl.
CPC ...
424408 ; 424409 ; 424438 ; 424485 ; 424487 ; 424489 ; 424497 ; 424501 ; 424 946 ; 5147726 ; 42840224 ; 428407 ; 264-41 ; 25217412 ; 42721331 ; 42721336 ;
Abstract
Release of an active ingredient can be controlled and the active ingredient can be protected from the environment during storage, by distributing it throughout a matrix containing a relatively large amount of polymeric material that is soluble and swellable in aqueous alkali but less soluble and swellable at a lower pH value and which is in the form of a dried oil-in-water emulsion of the polymer or a relatively insoluble partial salt of the polymer with a volatile amine, the full salt of the polymer being relatively soluble. The composition is of particular value for the protection of detergent enzymes.