Patents by Inventor Ester H. Mark, legal representative

Ester H. Mark, legal representative 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).

  • Polyester carbonate containing divalent residue of polymerized, partially hydrogenated conjugated alkadiene monomer
    Patent number: 4751264
    Abstract: High molecular weight thermoplastic aromatic carbonate resin exhibiting improved impact properties comprised of the polymerized reaction products of:(i) at least one dihydric phenol;(ii) a carbonate precursor; and(iii) an amount effective to improve the impact properties of said resin of at least one polymer represented by the formula ##STR1## wherein A represents a divalent residue of at least one polymerized and partially hydrogenated conjugated alkadiene monomer and has a weight average molecular weight of at least about 600, and X is independently selected from halogen radicals.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: June 14, 1988
    Assignee: General Electric Company
    Inventors: Victor Mark, deceased, Ester H. Mark, legal representative, Edward N. Peters
  • Polycarbonate exhibiting improved impact properties containing divalent residue of polymerized alkadiene monomer
    Patent number: 4728716
    Abstract: An aromatic carbonate resin comprised of:(i) at least one recurring structural unit represented by the formula ##STR1## (ii) at least one recurring structural unit selected from structural units represented by the formulae ##STR2## wherein R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;W is selected from divalent hydrocarbon radicals, --O--, --S--, --S--S--, ##STR3## A is a divalent residue of at least one conjugated alkadiene and has a weight average molecular weight of at least about 600,m is independently selected from integers having a value of from 0 to 4, andb is either zero or one.The carbonate resin contains an amount of (ii) at least effective to improve the impact properties thereof.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: March 1, 1988
    Assignee: General Electric Company
    Inventors: Victor Mark, deceased, Ester H. Mark, legal representative, Edward N. Peters
  • Polycarbonate with cycloalkylphenyl end group
    Patent number: 4699971
    Abstract: Thermoplastic aromatic polycarbonate containing the polymerized reaction products of (i) at least one dihydric phenol, (ii) a carbonate precursor, and (iii) at least one end-capping agent represented by the formula ##STR1## wherein: R is independently selected from alkyl radicals;Z is a cycloalkyl radical; andn is an integer having a value of from 0 to 4 inclusive.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: October 13, 1987
    Assignee: General Electric Company
    Inventors: Victor Mark, deceased, Ester H. Mark, legal representative
  • Polycarbonate containing cycloalkenylphenyl terminal groups
    Patent number: 4677184
    Abstract: Thermoplastic aromatic polycarbonate containing the polymerized reaction products of (i) at least one dihydric phenol, (ii) a carbonate precursor, and (iii) at least one end capping agent represented by the general formula ##STR1## wherein: R is independently selected from alkyl radicals;Z is a cycloalkenyl radical; andn is an integer having a value of from 0 to 4 inclusive.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: June 30, 1987
    Assignee: General Electric Company
    Inventors: Victor Mark, deceased, by Ester H. Mark, legal representative