1
Michael A Freeman, Monica Norman, David A Ballard, Ping Jiang, Kenneth C Symes, Kishor Kumar Mistry: Method for the triggered release of polymer-degrading agents for oil field use. M I L L C, Conely Rose, November 16, 2004: US06818594 (88 worldwide citation)

Disclosed are methods and related compositions for altering the physical and chemical properties of a substrate used in hydrocarbon exploitation, such as in downhole drilling operations. In a preferred embodiment a method involves formulating a fluid, tailored to the specific drilling conditions, th ...


2
John G Langley, Kenneth C Symes, Kishor K Mistry, Peter Chamberlain: Particulate composition comprising a core of matrix polymer with active ingredient distributed therein. Allied Colloids, Ostrolenk Faber Gerb & Soffen, October 24, 1995: US05460817 (73 worldwide citation)

A particulate composition comprises particles having a substantially anhydrous core comprising an active ingredient. Generally the core comprises a matrix polymer with the active ingredient distributed throughout this. Generally there is an outer protection shell of polymer, generally formed by coac ...


3
John Langley, Kenneth C Symes: Polymeric compositions. Allied Colloids, Ostrolenk Faber Gerb & Soffen, June 28, 1994: US05324445 (21 worldwide citation)

A liquid composition is disclosed which comprises a substantially stable dispersion in a liquid phase of particles comprising a detergent enzyme and a protective polymeric material that is impermeable to liquid detergent concentrates but releases the enzyme when agitated in aqueous wash liquor and c ...


4
Kenneth C Symes, Peter Flesher: Dry polymers. Allied Colloids, Ostrolenk Faber Gerb & Soffen, January 17, 1989: US04798888 (16 worldwide citation)

Powdered polysaccharide may be made by spray drying an emulsion in a non-aqueous liquid of an aqueous solution of the polysaccharide. Spray dried polysaccharides are novel materials. At least 90% by weight of the particles may be within a size range of not more than 100 microns. The particles may ha ...


5
John G Langley, Kenneth C Symes, Kishor K Mistry: Polymeric matrix particle compositions containing coacervate polymer shell. Allied Colloids, Ostrolenk Faber Gerb & Soffen, February 20, 1996: US05492646 (16 worldwide citation)

This invention relates to the encapsulation of active ingredient within polymeric material so as to protect the active ingredient from the ambient environment, for instance atmospheric moisture when the product is exposed to the air, or the liquid phase of a liquid detergent when the product is inco ...


6
Kenneth C Symes, John Langley, Kishor K Mistry: Polymeric products and their production. Allied Colloids, Jenner & Block, November 10, 1987: US04705825 (12 worldwide citation)

A particulate substantially homogeneous polymeric product is made by dispersing ungelatinised polysaccharide in aqueous monomer containing polymerization initiator, initiating polymerization and thereby inducing exothermic polymerization, utilizing the exotherm to provide part at least of the heat n ...


7
Kenneth C Symes, Kishor K Mistry: Process for producing derivatives of hydroxy compounds, the products and their uses. October 18, 1988: US04778880 (8 worldwide citation)

A process for producing novel water-soluble compounds of the formula (HO).sub.m --A--(OCH.sub.2 NR.sup.1 COR).sub.p comprises forming a dispersion of an aqueous solution of a substrate A(OH).sub.n which is an alcohol or, preferably, a carbohydrate and a derivatising reagent HOCH.sub.2 NR.sup.1 COR.s ...


8
Christopher J Lawson, Kenneth C Symes: Indican and suspensions and gels thereof and their uses. Talres Development, Ostrolenk Faber Gerb & Soffen, July 6, 1982: US04338432 (7 worldwide citation)

Indican, a polysaccharide comprising (1.fwdarw.3) glucose, (1.fwdarw.4) mannose, (1.fwdarw.4) rhamnose and (1.fwdarw.3 or 4) -0-(1-carboxyethyl)-rhamnose units in a molar ratio of about 2:1:1-2:1 respectively; containing 12-15% by weight acetyl units; [.alpha.]D.sup.20 about -61.degree.; having prin ...


9
John Langley, Kenneth C Symes, Peter Holm: Methods of drying biological products. Allied Colloids, Ostrolenk Faber Gerb & Soffen, July 30, 1991: US05035900 (6 worldwide citation)

Enzymes and other biologically produced materials are recovered from the fermentation broth or other liquor in which they are provided initially and simultaneously distributed throughout particles of a polymeric matrix by dissolving the polymer in the liquor, dispersing the resultant polymer solutio ...


10
Christopher J Lawson, Kenneth C Symes: Suspensions and gels of indican and their uses. Talres Development, Ostrolenk Faber Gerb & Soffen, February 8, 1983: US04372785 (2 worldwide citation)

Indican, a polysaccharide comprising (1.fwdarw.3) glucose, (1.fwdarw.4) mannose, (1.fwdarw.4) rhamnose and (1.fwdarw.3 or 4) -0-(1-carboxyethyl)rhamnose units in a molar ratio of about 2:1:1-2:1 respectively; containing 12-15% by weight acetyl units [.alpha.].sub.D.sup.20 about -61.degree.; having p ...



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