Patents by Inventor Oscar C. Mascarenhas

Oscar C. Mascarenhas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cling film and articles
    Patent number: 6171681
    Abstract: In one embodiment, the invention relates to an ink-imprinted and reusable multilayer cling film of at least one layer for use in combination with a substrate having a rigid smooth surface comprising a non-vinyl flexible polymer cling film which has two smooth surfaces, is substantially free of added plasticizer and provides a 180° peel force after application to glass of from about 30 to about 2500 gms after aging in a 140° F. oven for 72 hours. In another embodiment, the invention relates to an ink-printed and reusable multilayer cling film of at least two layers which can cling to substrates having a rigid smooth surface without the use of an adhesive material.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: January 9, 2001
    Assignee: Avery Dennison Corporation
    Inventors: Oscar C. Mascarenhas, Mitchell J. Rackovan, Gerald G. Popely, Melvin S. Freedman
  • Cling films and articles
    Patent number: 5888615
    Abstract: In one embodiment, the invention relates to an ink-imprinted and reusable multilayer cling film of at least one layer for use in combination with a substrate having a rigid smooth surface comprising a non-vinyl flexible polymer cling film which has two smooth surfaces, is substantially free of added plasticizer and provides a 180.degree. peel force after application to glass of from about 30 to about 2500 gms after aging in a 140.degree. F. oven for 72 hours.In another embodiment, the invention relates to an ink-printed and reusable multilayer cling film of at least two layers which can cling to substrates having a rigid smooth surface without the use of an adhesive material.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: March 30, 1999
    Assignee: Avery Dennison Corporation
    Inventors: Oscar C. Mascarenhas, Mitchell J. Rackovan, Gerald G. Popely, Melvin S. Freedman
  • Medical grade adhesives and their preparation
    Patent number: 5175246
    Abstract: Crosslinked hydrogel polymers are made by reacting a disubstituted aliphatic diamine of the general formula (I) or (XI) as given in the specification, with one or more diepoxides having the general formula (II), also as given in the specification, and subjecting the resulting non-crosslinked polymer having repeating units of the formula III or XIII to crosslinking conditions to produce the desired crosslinked hydrogel polymer. Hydrogel polymers thus produced are highly hydrophilic with a high degree of water uptake and a high equilibrium water content. In addition, these hydrogel polymers are highly absorptive of fluids and are adhesive when applied to dry surfaces but not when applied to wet surfaces. The hydrogel polymers are useful in wound dressings.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: December 29, 1992
    Assignee: University of Akron, The
    Inventors: Daniel J. Smith, Oscar C. Mascarenhas