Patents Assigned to Avecia, Inc.
  • Patent number: 8513404
    Abstract: A process for manufacturing an oligonucleotide which comprises removing ?-eliminating phosphorus-protecting groups, in particular ?-cyanoethyl protective groups from a protected oligonucleotide, wherein said removing comprises contacting the protected oligonucleotide with an amine solution in a solvent which preferably does not consist of pyridine, wherein the conjugate acid of the amine has preferably a pKa of greater than 11.5, and wherein the concentration of the amine in the solution is less than 0.5 mole/liters.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: August 20, 2013
    Assignee: Nitto Denko Avecia, Inc.
    Inventors: Tadeusz Krzysztof Wyrzykiewicz, Hagen Cramer, Huihe Zhu, Kevin James Finn
  • Patent number: 6710017
    Abstract: The present invention provides compositions and methods for controlling the growth of algae, especially nuisance algae, in recirculating water systems. The water systems encompass industrial and recreational applications. The compounds for use in the compositions and methods of the invention possess anti-algal activity and are selected from a herbicide and an agricultural fungicide or a combination thereof.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: March 23, 2004
    Assignee: Avecia, Inc.
    Inventors: Michael J. Unhoch, Roy D. Vore
  • Patent number: 6548588
    Abstract: Water-dispersible, air-drying uralkyd resins, aqueous dispersions and compositions thereof optionally containing vinyl polymer(s), said uralkyd resin comprising an amide ester diol product (obtainable from the reaction of a triglyceride oil and an N,N-dialkanolamine, pendant and/or terminal polyethyleneoxide chains, and carboxylate groups where the acid value of the uralkyd resin is from 5 to 30 mg KOH/g of resin.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: April 15, 2003
    Assignee: Avecia Inc.
    Inventors: Richard George Coogan, Shawn Damery
  • Patent number: 6506794
    Abstract: An aqueous dispersion comprising a halopropargyl compound (HPC) and a partially hydrolysed polyvinyl alcohol (PHPVA). The aqueous dispersions are useful for inhibiting the growth of micro-organisms on or in a medium, especially an industrial medium such as paint films, metal working fluids, wood, latices and plastic materials.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: January 14, 2003
    Assignee: Avecia Inc.
    Inventors: Emerentiana Sianawati, John Edward Yates
  • Patent number: 6485750
    Abstract: Phenothiazine and its derivatives products are provided with a minimal level of fines or dust as a result of forming such products in prill form. The prills are generally spherical. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. The prill product achieves improved handling, flowability and dissolution times, while minimizing the generation of phenothiazine fines and dust, and the problems associated with worker exposure, irritation and sensitization to such fines and dust.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: November 26, 2002
    Assignee: Avecia, Inc.
    Inventor: David A. Vanzin
  • Publication number: 20020102310
    Abstract: Phenothiazine and its derivatives products are provided with a minimal level of fines or dust as a result of forming such products in prill form. The prills are generally spherical. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. The prill product achieves improved handling, flowability and dissolution times, while minimizing the generation of phenothiazine fines and dust, and the problems associated with worker exposure, irritation and sensitization to such fines and dust.
    Type: Application
    Filed: August 7, 2001
    Publication date: August 1, 2002
    Applicant: Avecia, Inc.
    Inventor: David A. Vanzin
  • Patent number: 6284279
    Abstract: Phenothiazine and its derivatives products are provided with a minimal level of fines or dust as a result of forming such products in prill form. The prills are generally spherical. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. The prill product achieves improved handling, flowability and dissolution times, while minimizing the generation of phenothiazine fines and dust, and the problems associated with worker exposure, irritation and sensitization to such fines and dust.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: September 4, 2001
    Assignee: Avecia, Inc.
    Inventor: David A. Vanzin
  • Patent number: 6149930
    Abstract: A fungicidal composition the form of an aqueous emulsion is formed from 3-iodo-2-propynyl-N-butylcarbamate (IPBC), 2-(thiocyanomethylthio)benzothiazole (TCMTB), polyoxyethylene triglyceride, polyalkylene glycol ether, xanthan gum and dipropylene glycol. The composition is formed by adding a molten blend of polyoxyethylene triglyceride to a blend of IPBC and TCMTB, and then adding thereto a solution of xanthan gum in dipropylene glycol and water. The composition is particularly suited for the preservation of wet blue hides as obtained in the leather industry, and may also be used in the preservation of organic coatings delivered from aqueous media.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: November 21, 2000
    Assignee: Avecia Inc.
    Inventors: Anaide Bonjour, Gerardo D. Blanco, Carlos H. Canoura, Stuart D. Graham, Roger E. Smith