Patents Examined by William Clark
  • Patent number: 4957967
    Abstract: A thermoplastic resin composition having superior processability and impact strength has:(A) 100 parts by weight of a composition comprising 95-5 % by weight of a polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the following formula: ##STR1## (wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 which may be identical or different, each represents a hydrogen atom, a halogen atom, a hydrocarbon group or a substituted hydrocarbon group and at elast one of them is a hydrogen atom) and 5-95 % by weight of a thermoplastic polyester, and(B) 0.01-10 parts by weight of an amino resin obtained by modifying, with an alcohol, an addition reaction product of formaldehyde and at least one compound selected from the group consisting of melamine, guanamine and urea.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: September 18, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yukio Mizuno, Takashi Maruyama
  • Patent number: 4940757
    Abstract: A stain resistant composition for fibers having polyamide linkages prepared by polymerizing an .alpha.-substituted acrylic acid or ester in the presence of a sulfonated aromatic formaldehyde condensation polymer, and methods for making and applying the composition.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: July 10, 1990
    Assignee: Peach State Labs, Inc.
    Inventors: Thomas H. Moss, III, Ralph R. Sargent, Michael S. Williams