Patents Represented by Attorney Hugh C. Crall
  • Patent number: 4550189
    Abstract: Soil repellents derived from fluorinated acrylates and aromatic amines are disclosed which have excellent durability and resistance to laundering. The compounds are represented by the formula(R).sub.m --Ar--(NHCH.sub.2 CH(R.sub.1)CO.sub.2 R.sub.f).sub.nwherein n is 1 to 3 and m is 0 to 4, Ar is an aromatic radical containing from 1 to 3 benzene rings which may be fused together or linked through a single carbon-carbon bond or a linking group, R.sub.f is a fluorinated radical, R.sub.1 is H or CH.sub.3, and R is independently selected from lower alkyl, lower alkoxy, halogen, hydroxy, nitro, cyano, amino, lower alkylamino, lower acylamino, --CO.sub.2 R.sub.3 and --NHCH.sub.2 CH(R.sub.1)CO.sub.2 R.sub.3 wherein R.sub.3 is lower alkyl, --CH.sub.2 CH.sub.2 OH, or --CH.sub.2 CH(OH)CH.sub.2 Cl. Also disclosed are polyester and nylon fibers having these compounds incorporated therein.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: October 29, 1985
    Assignee: American Hoechst Corporation
    Inventors: Michael G. Kelly, James H. Covill
  • Patent number: 4548613
    Abstract: C.I. Disperse Yellow 54 and 64 are important yellow dyestuffs of the quinophthalone type used in coloring synthetic fibers, particularly polyamide, polyester, acrylic and acetate fibers at boiling temperature conditions. Yellow azo dyestuffs of the hydroxypyridone type, e.g., C.I. Disperse Yellow 114, 180 227 and 230 have found widespread application in the high-temperature dyeing of such synthetic fibers. It has now been found that improved tinctorial results on these synthetic fiber materials can be obtained by applying a dyeing composition derived from these yellow coloring means and comprising a mixture of 70-90 parts by weight of one or more dyestuffs of the C.I. 54 and 64 type with 5 to 30 parts by weight of an azo dyestuff of the hydroxypyridone type. These improved dyestuff compositions exhibit superior leveling, high tinctorial strength or color build-up, high dyebath exhaustion and deep shade dyeing over the individual components.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: October 22, 1985
    Assignee: American Hoechst Corporation
    Inventors: Albert Bode, Thomas V. Chambers, Manfred Hahnke, Wolfgang Kretzschmar
  • Patent number: 4534770
    Abstract: Multi-ring fluorinated carbamates are disclosed which have excellent anti-soiling properties, durability and resistance to laundering. The compounds are represented by the formula ##STR1## wherein R.sub.f is a fluorinated radical. Compositions containing at least 10% of such compounds are also disclosed, as well as polyester and nylon fibers having such compounds incorporated therein.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: August 13, 1985
    Assignee: American Hoechst Corporation
    Inventor: Michael G. Kelly
  • Patent number: 4521214
    Abstract: There is described a process for producing, in a continuous manner, a gradient dyeing across the width of a long strip of a plastic sheet and an apparatus used therefor. In a preferred embodiment of the invention, the orientation of the plastic strip is maintained substantially constant during the passage through a dye bath, and the dye liquid level is repetitively varied by use of a liquid level control means. This invention is particularly useful for making gradient-dyed plastic sheets which in turn are used for making sunglass lenses.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: June 4, 1985
    Assignee: American Hoechst Corporation
    Inventor: Robert Weis
  • Patent number: 4503126
    Abstract: There is disclosed a method for providing an improved abrasion resistant coating on solid substrates such as plastic articles and solid articles prepared thereby having on the surface such abrasion resistant coating. A solid substrate is coated with an organosilanol-type coating liquid comprising organosilanol molecules, or a precursor thereof or a partial condensation product thereof. At least 90 mole percent of said organosilanol molecules are trifunctional silanol molecules of the formula RSi(OH).sub.3, R being a hydrocarbon radical, and at least 50 mole percent of said trisilanols being an alkyl trisilanols of 1-3 carbon atoms or phenyl trisilanol. Preferably, at least 70 mole percent of the trisilanol is methyltrisilanol. After the coating is cured by a conventional means, it is post-treated by an electron beam irradiation to afford an abrasion resistance far superior to that obtained from organosilanol coating liquids without electron beam irradiation post-treatment.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: March 5, 1985
    Assignee: Foster Grant Corporation
    Inventors: Richard A. Phillips, Theodore A. Haddad
  • Patent number: 4500438
    Abstract: Multi-ring fluorinated carbamates are disclosed which have excellent anti-soiling properties, durability and resistance to laundering. The compounds are represented by the formula ##STR1## wherein R.sub.f is a fluorinated radical. Compositions containing at least 10% of such compounds are also disclosed, as well as polyester and nylon fibers having such compounds incorporated therein.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: February 19, 1985
    Assignee: American Hoechst Corporation
    Inventor: Michael G. Kelly
  • Patent number: 4492733
    Abstract: There is disclosed a method for providing an improved abrasion resistant coating on solid substrates such as plastic articles and solid articles prepared thereby having on the surface such abrasion resistant coating. A solid substrate is coated with an organosilanol-type coating liquid comprising organosilanol molecules or a partial condensation product thereof. At least 90 mole percent of said organosilanol molecules are trifunctional silanol molecules of the formula RSi(OH).sub.3, R being a hydrocarbon radical, and at least 50 mole percent of said trisilanols being an alkyl trisilanols of 1-3 carbon atoms or phenyl trisilanol. Preferably, at least 70 mole percent of the trisilanol is methyltrisilanol. After the coating is cured by a conventional means, it is post-treated by a glow discharge to afford an abrasion resistance far superior to those obtained from organosilanol coating liquids without glow discharge post-treatment.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: January 8, 1985
    Assignee: Foster Grant Corporation
    Inventors: Richard A. Phillips, Theodore A. Haddad
  • Patent number: 4472466
    Abstract: Fluorinated esters based on multi-ring anhydride systems are disclosed which have excellent anti-soiling properties, durability and resistance to laundering. The compounds are represented by the formula ##STR1## wherein n is 2 or 3, Q is a linking group such as --CO--, --O--, or (C.sub.a H.sub.2a+2-n --(O.sub.2 C).sub.n, R.sub.f is a fluorinated radical, and R is derived from an epoxide such as ethylene oxide or epichlorohydrin. Also disclosed are polyester and nylon fibers having these compounds incorporated therein, and a process for producing such soil-repellent fibers.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: September 18, 1984
    Assignee: American Hoechst Corporation
    Inventors: Michael G. Kelly, Willi R. Steckelberg
  • Patent number: 4448583
    Abstract: An aqueous, liquid fiber-reactive dye composition which is stable to decomposition is disclosed. The composition consists essentially of 5 to 45% by weight of a water-soluble, fiber-reactive dyestuff having from 1 to 3 .beta.-sulfatoethylsulfonyl (--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H) groups, or a mixture of such dyestuffs; 0 to 10% by weight of water-soluble inert inorganic salt; and 45 to 95% by weight of water. Said liquid dye composition must have a pH of about 2.5 to about 4.5 and must be substantially free of buffer substances. The liquid dye composition may be stored for long periods of time at 0.degree. to 50.degree. C. with substantially reduced decomposition to the vinylsulfonyl dye form.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: May 15, 1984
    Assignee: American Hoechst Corporation
    Inventor: Anthony J. Corso
  • Patent number: 4389179
    Abstract: This invention relates to a machine for and a method of making building products from a coiled sheet of thermoplastic polymer such as polyvinyl chloride. In the practice of this invention, portions of the polymeric sheet are selectively and sequentially heated and progressively bent to the desired shape by passing the sheet through a series of heating, forming and cooling stations.The simplified design of the machine enables the user to custom fabricate building products at a construction site with a resulting savings in cost. Typical products adapted to be made in accordance with the invention are exterior building siding, siding accessories and other building products.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: June 21, 1983
    Assignee: American Hoechst Corporation
    Inventors: Robert F. Westcott, John R. Delamater
  • Patent number: 4329307
    Abstract: This invention relates to a machine for and a method of making building products from a coiled sheet of thermoplastic polymer such as polyvinyl chloride. In the practice of this invention, portions of the polymeric sheet are selectively and sequentially heated and progressively bent to the desired shape by passing the sheet through a series of heating, forming and cooling stations.The simplified design of the machine enables the user to custom fabricate building products at a construction site with a resulting savings in cost. Typical products adapted to be made in accordance with the invention are exterior building siding, siding accessories and other building products.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: May 11, 1982
    Assignee: American Hoechst Corporation
    Inventors: Robert F. Westcott, John R. Delamater
  • Patent number: 3993611
    Abstract: New polymeric compositions having a resistance to zinc chloride are prepared by copolymerizing polyamide-producing monomers containing up to 9 carbon atoms in each molecule of monomer with a long chain hydrocarbon diacid and a long chain hydrocarbon diamine.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: November 23, 1976
    Assignee: Foster Grant Co., Inc.
    Inventors: Willard M. Sims, Arthur D. Bliss