Gypsum board with a fluorine-containing antifungal agent
申请人:Toreki William
公开号:US20090104144A1
公开(公告)日:2009-04-23
A novel gypsum board having improved antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings, and a polymeric antifungal agent effective at inhibiting fungal growth. A preferred polymeric antifungal agent is polyDADMAC or polyTMMC. The novel gypsum board further comprises a non-polymeric antifungal agent comprising a fluorine-containing quaternary ammonium compound. Preferred non-polymeric ammonium compounds include Tetra-n-butylammonium fluoride and Tetraethylammonium fluoride. The polymeric antifungal agent can be present in the gypsum core and/or on one or both of the paper facings. The non-polymeric antifungal agent may be encapsulated in a material or ionically associated with the polymeric antifungal agent to allow releases of the non-polymeric antifungal agent over time and/or upon exposure to moisture. Methods for preparing the aforementioned novel gypsum board are also disclosed.
Blocky hydroxyethylcellulose, derivatives thereof, process of making, and uses thereof
申请人:Arisz Petrus Wilhelmus Franciscus
公开号:US20060182703A1
公开(公告)日:2006-08-17
This invention relates to non-uniformly substituted (“blocky”) hydroxyethylcelluloses (HECs) and derivatives thereof that exhibit associative behavior in both neat solutions and in filled systems. The HECs and derivatives thereof exhibit unique and highly desirable rheology and are more efficient in thickening aqueous systems than prior art HEC products. These blocky HECs can be distinguished from prior art and commercial HEC products by having an unsubstituted anhydroglucose trimer ratio (U3R) greater than 0.21 and the hydroxethyl molar substitution greater than about 1.3 and less than about 5. This invention also relates to processes for making blocky HEC and uses thereof in functional systems.
Quaternary ammonium polyol salts as anti-aging actives in personal care compositions
申请人:Harding Roderick Clive
公开号:US20060089277A1
公开(公告)日:2006-04-27
A personal care product is provided which includes a package filed with a personal care composition and instructions printed on or associated with the package indicating topical use of the composition on skin for purposes of controlling the signs of aging. The composition includes a quaternary ammonium compound selected from (a) salts of hydroxypropyltri(C
1
-C
3
alkyl)ammonium mono-substituted mono-saccharide; (b) salts of hydroxypropyltri(C
1
-C
3
alkyl)ammonium mono-substituted polyols, the salts having a cation of an average molecular weight no higher than about 450 and the salt having a T
g
no higher than about 10° C.; (c) dihydroxypropyltri(C
1
-C
3
alkyl)ammonium salts; (d) chlorohydroxypropyltri(C
1
-C
3
alkyl)ammonium salts; and (e) mixtures thereof.
It has surprisingly been discovered that it is possible to stabilise biomolecules such as RNA, DNA and proteins in biological samples such as cells, tissues, biopsies and blood using deep eutectic solvents (DES). It has also been discovered that DES mixtures can be used to fix and preserve cell morphology in biological samples such as tissue blocks, cancer biopsies and whole blood. This invention describes methods to stabilise and preserve biomolecules, whole cells, tissues, blood and biological samples using DES mixtures.
The present invention relates to a shampoo composition comprising a minced polygalactomannan hydrocolloid(s) in combination with a water soluble silicone compound.