Patents by Inventor Birgitte Maria Ludovica Christine Van De Vliet

Birgitte Maria Ludovica Christine Van De Vliet 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).

  • Adhesive compositions comprising block copolymers of a monovinylaromatic compound and butadiene
    Patent number: 5948527
    Abstract: Hot melt adhesive compositions, comprising(a) a radial multiarmed block copolymer (AB).sub.n X, wherein A is a block predominantly derived from a monovinylaromatic compound, B is a block predominantly derived from butadiene and which optionally has been partially or completely hydrogenated,X is the residue of a multifunctional coupling agent,n is in the range of from 3 to 6,(b) a linear block copolymer AB, the components (a)+(b) being present in an amount of 100 parts by weight,(c) a tackifying resin, which is compatible with the blocks B, in an amount of from 100 to 500 parts by weight,(d) a plasticizer in an amount of from 100 to 300 parts by weight,(e) an antioxidant-UV stabiliser in an amount from 0.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: September 7, 1999
    Assignee: Shell Oil Company
    Inventors: Eric-Jack Gerard, Noel Raymond Maurice De Keyzer, Birgitte Maria Ludovica Christine Van De Vliet
  • Adhesive compositions comprising block copolymers of a monovinylaromatic compound and butadiene
    Patent number: 5750607
    Abstract: Hot melt adhesive compositions, comprising(a) a radial multiarmed block copolymer (AB).sub.n X, wherein A is a block predominantly derived from a monovinylaromatic compound, B is a block predominantly derived from butadiene and which optionally has been partially or completely hydrogenated,X is the residue of a multifunctional coupling agent,n is in the range of from 3 to 6,(b) a linear block copolymer AB, the components (a)+(b) being present in an amount of 100 parts by weight,(c) a tackifying resin, which is compatible with the blocks B, in an amount of from 100 to 500 parts by weight,(d) a plasticizer in an amount of from 100 to 300 parts by weight,(e) an antioxidant-UV stabiliser in an amount from 0.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: May 12, 1998
    Assignee: Shell Oil Company
    Inventors: Eric-Jack Gerard, Noel Raymond Maurice De Keyzer, Birgitte Maria Ludovica Christine Van De Vliet