Patents Assigned to Cambridge Biopolymers Limited
  • Patent number: 9139681
    Abstract: The present invention relates to methods for the production of a resin such as a thermosetting resin, particularly a bioresin, components for use in the methods, and products obtained from the methods. In one aspect the method of forming a resin comprising the steps of: (1) providing an aldehyde-cross-linking agent condensate obtained by reacting a volatile aldehyde with a cross-linking agent; (2) providing a non-volatile aldehyde; and (3) combining the aldehyde-cross-linking agent condensate and the non-volatile aldehyde, thereby forming the resin.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 22, 2015
    Assignee: CAMBRIDGE BIOPOLYMERS LIMITED
    Inventors: Colin Fitchett, Colin Chappell
  • Publication number: 20130116386
    Abstract: The present invention relates to methods for the production of a resin such as a thermosetting resin, particularly a bioresin, components for use in the methods, and products obtained from the methods. In one aspect the method of forming a resin comprising the steps of: (1) providing an aldehyde-cross-linking agent condensate obtained by reacting a volatile aldehyde with a cross-linking agent; (2) providing a non-volatile aldehyde; and (3) combining the aldehyde-cross-linking agent condensate and the non-volatile aldehyde, thereby forming the resin.
    Type: Application
    Filed: December 10, 2010
    Publication date: May 9, 2013
    Applicant: CAMBRIDGE BIOPOLYMERS LIMITED
    Inventors: Colin Fitchett, Colin Chappell
  • Patent number: 7074872
    Abstract: Disclosed is a process for modifying cashew nut shell liquid (CNSL) which involves the steps of subjecting the CNSL to ozonolysis to form ozonolysis reaction products, followed by reduction of the ozonolysis reaction products to give a mixture of phenolic components and aldehydes. In a preferred embodiment, the process involves reacting CNSL with ozone to form a mixture containing ozonolysis reaction products, and then treating the mixture under reducing conditions to form a further mixture containing phenolic components with an eight carbon chain having a terminal —CHO group and alkyl components of varying lengths with either one or two terminal —CHO groups. The resulting CNSL aldehydes may be used to form adhesives for use in the manufacture of composites such as wood particle board.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: July 11, 2006
    Assignee: Cambridge Biopolymers Limited
    Inventors: Mohammed Lokman Khan, Jeremy Tomkinson, Richard James Salisbury
  • Patent number: 6869989
    Abstract: Disclosed is a process for modifying cashew nut shell liquid (CNSL) which involves the steps of subjecting the CNSL to ozonolysis to form ozonolysis reaction products, followed by reduction of the ozonolysis reaction products to give a mixture of phenolic components and aldehydes. In a preferred embodiment, the process involves reacting CNSL with ozone to form a mixture containing ozonolysis reaction products, and then treating the mixture under reducing conditions to form a further mixture containing phenolic components with an eight carbon chain having a terminal —CHO group and alkyl components of varying lengths with either one or two terminal —CHO groups. The resulting CNSL aldehydes may be used to form adhesives for use in the manufacture of composites such as wood particle board.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: March 22, 2005
    Assignee: Cambridge Biopolymers Limited
    Inventors: Mohammed Lokman Khan, Jeremy Tomkinson, Richard James Salisbury
  • Patent number: 6768029
    Abstract: The invention provides a solid composite material comprising a matrix formed from a particulate or fibrous material and a cured thermosetting resin, wherein the cured thermosetting resin is derived from an oxidative cleavage product selected from aldehydes and peroxides and mixtures thereof formed by the oxidative cleavage of an unsaturated bond in an unsaturated plant or animal oil, other than the ozonolysis cleavage product of cashew nut shell liquid. Also provided is a process for the production of aldehydes and/or peroxides, which process comprises the treatment of a vegetable oil with ozone (e.g. in the presence of an alcohol as a solvent for the oil) so that hydroperoxides are produced, and the reductive cleavages of the hydroperoxides with a reducing sugar.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: July 27, 2004
    Assignee: Cambridge Biopolymers Limited
    Inventors: Mohammed Lokman Khan, Jeremy Tomkinson, Colin Stanley Fitchett, Mairi Janet Black
  • Patent number: 6482430
    Abstract: Hemicellulosic cereal extracts suitable as substrates for oxidative gelation, gels prepared therefrom, processes for their production, products containing such gels and applications thereof. Preferred sources are wheat sources, when the preparative process may involve the removal of contaminating proteins.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: November 19, 2002
    Assignee: Cambridge Biopolymers Limited
    Inventors: Richard Mark Weightman, Colin Stanley Fitchett, Roderick Greenshields