Patents by Inventor D. Bruce Merrifield

D. Bruce Merrifield 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).

  • Patent number: 4055581
    Abstract: A polymeric composition containing more than 5% halogen can be improved in heat and light stability by the incorporation therein of small amounts of a novel stabilizer which is the metallic salt of the reaction product of an alpha-olefin with maleic anhydride.The stabilizers of the invention can be used either alone or in combination with conventional stabilizers for halogen containing polymeric materials.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: October 25, 1977
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: George C. Hopkins, D. Bruce Merrifield
  • Patent number: 4036810
    Abstract: A polymeric composition containing more than 5% halogen can be improved in heat and light stability by the incorporation therein of small amounts of a novel stabilizer which is the metallic salt of the reaction product of an alpha-olefin with maleic anhydride.The stabilizers of the invention can be used either alone or in combination with conventional stabilizers for halogen containing polymeric materials.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: July 19, 1977
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: George C. Hopkins, D. Bruce Merrifield
  • Patent number: 4006117
    Abstract: Compounds of the formula ##STR1## WHEREIN R is selected from the group consisting of ethylene, 1,2 propylene, 1,2 butylene, 2,3 butylene, styrylene and mixtures thereof,x is an integer from 1 to 12,R.sup.1 is substituted or unsubstituted alkyl or aryl,n is an integer from 1 to 3,Each m is a member, selected independently from the group consisting of hydrocarbon of 1 to 20 carbon atoms, --RO-- , --RO-- H and --RO-- P(OR').sub.3.sup.-n,Wherein R, R', n and x are as above described, providing where m is --RO-- , the O-- bond thereof is attached to the phosphorus of an adjacent P(OR') moiety of a common nitrogen, andP is 0 or 1, providing that when p is ##STR2## IS HYDROGEN, ARE DISCLOSED HAVING UTILITY AS NON-STAINING ANTIOXIDANTS.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: February 1, 1977
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: D. Bruce Merrifield, Joseph A. Pawlak, James G. Colson
  • Patent number: 3956428
    Abstract: Compounds of the formula ##SPC1##WhereinR is selected from the group consisting of ethylene, 1,2 propylene, 1,2 butylene, 2,3 butylene, styrylene and mixtures thereof,x is an integer from 1 to 12,R' is substituted or unsubstituted alkyl or aryl,n is an integer from 1 to 3,Each m is a member, selected independently from the group consisting of hydrocarbon of 1 to 20 carbon atoms, (RO).sub.x, (RO).sub.x H andP(OR').sub.3-n,Wherein R, R', n and x are as above described, providing where m is (RO).sub.x, the O-- bond thereof is attached to the phosphorus of an adjacent P(OR') moiety of a common nitrogen, andz is 0 or 1, providing that when z is ##EQU1## IS HYDROGEN, ARE DISCLOSED HAVING UTILITY AS NON-STAINING ANTIOXIDANTS.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: May 11, 1976
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: D. Bruce Merrifield, Joseph A. Pawlak, James G. Colson
  • Patent number: 3933740
    Abstract: A polymeric composition containing more than 5% halogen can be improved in heat and light stability by the incorporation therein of small amounts of a novel stabilizer which is the metallic salt of the reaction product of an alpha-olefin with maleic anhydride.The stabilizers of the invention can be used either alone or in combination with conventional stabilizers for halogen containing polymeric materials.
    Type: Grant
    Filed: January 2, 1974
    Date of Patent: January 20, 1976
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: George C. Hopkins, D. Bruce Merrifield