Patents by Inventor Ronald W. Novak

Ronald W. Novak 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: 5527613
    Abstract: The present invention is concerned with core and shell polymeric particles having microvoids in the core and one or more channels connecting the microvoids to the exterior of the particle. These particles, or LCAPs are produced by forming a core of polymeric acid, encasing the core in a shell polymer permeable to base, and then neutralizing the core such that the core swells, causing the shell to "explode" in a controlled fashion. This controlled explosion causes channels to form in the shell.These particles can be used as control release devices for target compounds, to impart reinforcing properties to acrylic films, as an opacifying agent in coating compositions, and as a supplement or replacement of part or all of the pigmentary material or extenders that would otherwise be used in such coating compositions.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: June 18, 1996
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Blankenship, Ronald W. Novak, Clarence J. Neyhart, Martin Vogel
  • Patent number: 5510422
    Abstract: The present invention is concerned with core and shell polymeric particles having microvoids in the core and one or more channels connecting the microvoids to the exterior of the particle. These particles, or LCAPs are produced by forming a core of polymeric acid, encasing the core in a shell polymer permeable to base, and then neutralizing the core such that the core swells, causing the shell to "explode" in a controlled fashion. This controlled explosion causes channels to form in the shell.These particles can be used as control release devices for target compounds, to impart reinforcing properties to acrylic films, as an opacifying agent in coating compositions, and as a supplement or replacement of part or all of the pigmentary material or extenders that would otherwise be used in such coating compositions.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 23, 1996
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Blankenship, Ronald W. Novak, Clarence J. Neyhart, Martin Vogel, Alexander Kowalski
  • Patent number: 5409971
    Abstract: An aqueous, radiation-curable, functionalized latex polymer composition and its preparation are disclosed. The composition is a multistaged latex polymer formed from a first stage polymer and a second stage polymer having .alpha., .beta.-unsaturated carbonyl functionalization which permits curing by UV radiation. The composition dries tack-free before curing. The final cured UV coating has excellent solvent resistance, water resistance, stain resistance, direct impact resistance and hot print resistance. The composition is useful in coatings, adhesives, inks and leather coatings, and is particularly useful as a coating on wood.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: April 25, 1995
    Assignee: Rohm and Haas Company
    Inventors: Martha H. Wolfersberger, Frederick J. Schindler, Ronald S. Beckley, Ronald W. Novak
  • Patent number: 5306744
    Abstract: An aqueous, radiation-curable, functionalized latex polymer composition and its preparation are disclosed. The composition is a multistaged latex polymer formed from a first stage polymer and a second stage polymer having .alpha., .beta.-unsaturated carbonyl functionalization which permits curing by UV radiation. The composition dries tack-free before curing. The final cured UV coating has excellent solvent resistance, water resistance, stain resistance, direct impact resistance and hot print resistance. The composition is useful in coatings, adhesives, inks and leather coatings, and is particularly useful as a coating on wood.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: April 26, 1994
    Assignee: Rohm and Haas Company
    Inventors: Martha H. Wolfersberger, Frederick J. Schindler, Ronald S. Beckley, Ronald W. Novak
  • Patent number: 5304707
    Abstract: A method for solidification or encapsulation of compositions containing a substantially continuous aqueous phase comprising uniformly incorporating into said compositions core-shell polymer particles and subsequently neutralizing said polymer particles by incorporating into said compositions an organic or inorganic base. The neutralized polymer particles swell and absorb substantially all of said aqueous phase.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: April 19, 1994
    Assignee: Rohm and Haas Company
    Inventors: Robert M. Blankenship, Clarence Neyhart, Ronald W. Novak
  • Patent number: 5225279
    Abstract: The present invention relates to a sequential polymerization process for preparing a water-insoluble dispersion of core/shell particles. In one embodiment the process may be employed to produce a particulate dispersion useful in making water-based coating compositions wherein on drying the particulate dispersion serves as an opacifying agent. In another embodiment the process may be employed to microencapsulate a hydrophobic target material, such as a biocide or herbicide.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 6, 1993
    Assignee: Rohm and Haas Company
    Inventors: George H. Redlich, Ronald W. Novak
  • Patent number: 5143954
    Abstract: A low-formaldehyde polymer latex composition includes a formaldehyde-scavenging agent selected froma) a compound having the formula ##STR1## wherein A is selected from O, NH, and NR.sup.2 ; R.sup.1 is selected from H, 3-allyloxy-2-hydroxypropyl, methacryloyl, acryloyl and methacryloxyaceto; and R.sup.2 is 3-allyloxy-2-hydroxypropyl when R' is 3-allyloxy-2-hydroxypropyl;b) a compound having the formula R.sup.3 CH.sub.2 R.sup.4, whereinR.sup.3 and R.sup.4 are both --C(O)OR.sup.5 ;R.sup.3 is CH.sub.3 C(O)-- and R.sup.4 is --C(O)OR.sup.5 ;R.sup.3 is --CN and R.sup.4 is selected from --C(O)NH.sub.2 and --C(O)OR.sup.5 ; orR.sup.3 is CH.sub.3 C(O)-- and R.sup.4 is --C(O)OCH.sub.2 CH.sub.2 OC(O)C(CH.sub.3).dbd.CH.sub.2 ; andR.sup.5 is a C.sub.1 -C.sub.6 hydrocarbon radical;c) a compound having the formulaNCCH.sub.2 C(O)OCH.sub.2 --CH--(CH.sub.2 CH.sub.2 OC(O)CH.sub.2 CN).sub.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: September 1, 1992
    Assignee: Rohm and Haas Company
    Inventors: Thomas W. Hutton, Ronald W. Novak
  • Patent number: 4985064
    Abstract: The present invention relates to a sequential polymerization process for preparing a water-insoluble dispersion of core/shell particles. In one embodiment the process may be employed to produce a particulate dispersion useful in making water-based coating compositions wherein on drying the particulate dispersion serves as an opacifying agent. In another embodiment the process may be employed to microencapsulate a hydrophobic target material, such as a biocide or herbicide.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: January 15, 1991
    Assignee: Rohm and Haas Company
    Inventors: George H. Redlich, Ronald W. Novak
  • Patent number: 4886618
    Abstract: Oxygen scavengers, especially for vinyl polymerizations, comprising an aldehyde or imine of the formulaR.sub.3 Q.sub.nwherein n is 1-4; R.sub.3 is an organic radical having a valence of 1-4 or hydrogen; Q is of the formula ##STR1## wherein A is 0 or NR.sub.4 ; R.sub.2, R.sub.2, and R.sub.4 are independently selected C.sub.1-6 alkyl or aryl radicals or mixtures thereof are disclosed.A preferred composition is a mixture of aldehydes which are the reaction product of (a) ethylene urea, (b) formaldehyde, (c) isobutyraldehyde, and (d) 2-ethylhexanal in a molar ratio of (a):(b) of 1:2 and of (a) to the sum of (c) and (d) of 1:2.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: December 12, 1989
    Assignee: Rohm and Haas Company
    Inventors: Ronald W. Novak, William D. Emmons
  • Patent number: 4677003
    Abstract: The present invention relates to a sequential polymerization process for preparing a water-insoluble dispersion of core/shell particles. In one embodiment the process may be employed to produce a particulate dispersion useful in making water-based coating compositions wherein on drying the particulate dispersion serves as an opacifying agent. In another embodiment the process may be employed to microencapsulate a hydrophobic target material, such as a biocide or herbicide.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: June 30, 1987
    Assignee: Rohm and Haas Company
    Inventors: George H. Redlich, Ronald W. Novak
  • Patent number: 4455402
    Abstract: Two stage film-forming polymers having a soft first and a hard second stage are prepared by emulsion polymerizing the first stage and then, in the presence of a coalescent, the second stage. The polymers combine low MFT with superior early block resistance and high temperature hardness.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: June 19, 1984
    Assignee: Rohm and Haas Company
    Inventors: David R. Amick, Sidney Melamed, Ronald W. Novak
  • Patent number: 4292220
    Abstract: The specification discloses a polymer of ethylenically unsaturated monomers wherein the polymer comprises diamide mer units having pendant unsaturated, air-curable alkyl groups. Methods of making and using the polymers and articles made therefrom are taught. The polymer may be used in coating, bonding or adhering to substrates. Of particular importance are uses in paint compositions and in caulk compositions. The air-curable alkyl diamide mer unit is derived from an unsaturated drying oil. Aqueous coating compositions are disclosed in which the polymer is an ammonia or amine salt, in solution, and is either the sole polymeric vehicle or is combined with a water insoluble polymer latex.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: September 29, 1981
    Assignee: Rohm and Haas Company
    Inventors: Ronald W. Novak, Leslie R. Wolf
  • Patent number: 4233362
    Abstract: The specification discloses a polymer and the method of using the same to prepare articles of manufacture, the composition comprising a water-soluble salt of a polymer containing pendant groups derived from an unsaturated drying oil fatty acid hydroxyamide, carboxy groups, carboxy ester groups and optionally the residues of other unsaturated addition polymerizable monomers, the carboxy units being present in a critical amount and the polymer having a critical glass transition temperature, molecular weight and the like. Aqueous coating compositions are disclosed in which the soluble polymer is either the sole polymeric vehicle or is combined with a water-insoluble polymer latex.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: November 11, 1980
    Assignee: Rohm and Haas Company
    Inventors: Ronald W. Novak, Benjamin B. Kine
  • Patent number: 4215179
    Abstract: It has been discovered that the adhesion of latex coatings to concrete surfaces can be significantly improved by prior treatment of the surface with an air curable, water soluble polymer. Preferred water soluble polymers cure oxidatively in a manner similar to drying oils.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: July 29, 1980
    Assignee: Rohm and Haas Company
    Inventors: Sidney Melamed, Ronald W. Novak, Clarence J. Neyhart