Patents Examined by L. Henderson
  • Patent number: 4814416
    Abstract: A thermotropic aromatic polyester molding compound, comprising:(A) 10-80 mol % p-Hydroxybenzoic acid;(B) 10-45 mol % HOOC-Ar-COOH;(C) 0-43 mol % HO-Ar'-OH, where Ar and Ar' are, independently, 1,3- or 1,4-phenylene; 1,4-, 1,5-, 2,6- or 2,7-naphthalene; or ##STR1## wherein X is --O--, --S--, --SO.sub.2, --CR.sub.2 --; n is 0 or 1 and R is H or C.sub.1-4 alkyl; and(D) 2-45 mol % ##STR2## wherein Y is --H, --R, --OR, --Ar", or --OAr", where Ar" is a monovalent aromatic group; andwherein the molar ratio B/(C+D) is in the range 0.9:1 to 1.1:1.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: March 21, 1989
    Assignee: Huels Aktiengesellschaft
    Inventor: Heinz-Guenter Poll
  • Patent number: 4812487
    Abstract: There is disclosed polyurethane reaction mixtures containing a novel aromatic diamine as a curative. This invention is also concerned with cured polyurethanes prepared by reacting the aromatic diamine of this invention with a mixture of organic polyisocyanate and polymeric polyol containing an excess of said polyisocyanate or with a prepolymer of said polyisocyanate and a polymeric polyol. The use of the curative of this invention provides sufficient pot life for making castings as well as foams.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: March 14, 1989
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Howard A. Colvin
  • Patent number: 4808677
    Abstract: Disclosed are colored compositions useful for molding into articles such as food containers, beverage bottles, cured structural plastics and the like comprising condensation polymer having reacted therewith or copolymerized therein a coloring amount of the residue of a colorant compound having the formula; ##STR1## wherein R.sup.1 is ##STR2## carbonyl halide or an unsubstituted or substituted carbocyclic or hetrocyclic aryl radical;R.sup.2 is hydrogen or an unsubstituted or substituted alkyl or acyl radical;R.sup.3 is any of the substituents which R.sup.1 may represent; andA.sup.1 and A.sup.2 each is the residue of a fused benzene ring; whereinR.sup.4 is hydrogen, allyl or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical; andR.sup.5 is hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical; provided the colorant compound bears at least one substituent that is reactive with one of the monomers from which the condensation polymer is derived.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: February 28, 1989
    Assignee: Eastman Kodak Company
    Inventors: Max A. Weaver, Clarence A. Coates, Jr., Wayne P. Pruett, Samuel D. Hilbert
  • Patent number: 4804719
    Abstract: Water-dispersible polymeric material such as polyesters and poly(ester-amides) containing water-solubilizing sulfonate groups and having reacted onto or into the polymer backbone from about 0.01 to about 40 mol % based on the total of all reactant hydroxy, carboxy or amino equivalents, of colorant comprising one or more heat stable organic compounds initially having one or more condensable groups, the polymeric material comprising the reaction residues of organic monomers and said colorant compounds containing one or more reactive groups condensable under polymerization conditions. This material is useful, for example, for printing inks or other coatings which are desireably applied from an aqueous system.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: February 14, 1989
    Assignee: Eastman Kodak Company
    Inventors: Max A. Weaver, L. Jane Adams
  • Patent number: 4803256
    Abstract: The instant invention deals with the alteration of solid synthetic polymers to improve the overall functional performance of the polymers. The invention also deals with a fast, clean, efficient, inexpensive method of altering the surface of textiles. The method comprises contacting a textile with a swelling agent and a base and heating to alter the textile, and then acidifying the treating bath and contacting the textile with an active substance, such as a hydrophilic polymer, to further alter the textile.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: February 7, 1989
    Assignee: Dow Corning Corporation
    Inventor: Roy Luckenbach