Patents Assigned to SPECIALITY FIBRES AND MATERIALS LTD.
  • Publication number: 20160114074
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Application
    Filed: November 16, 2015
    Publication date: April 28, 2016
    Applicant: SPECIALITY FIBRES AND MATERIALS LTD.
    Inventor: STEPHEN LAW
  • Patent number: 9221963
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: December 29, 2015
    Assignee: SPECIALITY FIBRES AND MATERIALS LTD.
    Inventor: Stephen Law
  • Patent number: 9144625
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: September 29, 2015
    Assignee: SPECIALITY FIBRES AND MATERIALS LTD.
    Inventor: Stephen Law