Patents by Inventor Gregory J. Hopkins

Gregory J. Hopkins 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: 7399529
    Abstract: Resin compositions, methods of forming such resin compositions, methods of using such resin compositions and substrates treated with such resin compositions are disclosed. One of such resin compositions contains no formaldehyde and is useful as a binder. Such resin composition comprises the reaction product of: a—melamine, b—at least one aldehyde of formula (1) as defined in the specification, c—a cross linking agent, wherein the cross linking agent is glyoxylic acid, and d—at least one polyol having 2 or more than 2 hydroxyl groups. The resin composition of the present invention can provide performance characteristics to which they are applied.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: July 15, 2008
    Assignee: Clariant (France)
    Inventors: Gregory J. Hopkins, William C. Floyd
  • Patent number: 7169881
    Abstract: Resin compositions, methods of forming such resin compositions, methods of using such resin compositions and substrates treated with such resin compositions are disclosed. One of such resin compositions contains no formaldehyde and is useful as a binder. Such resin composition comprises the reaction product of: a—melamine, b—at least one aldehyde of formula (1) as defined in the specification, c—a cross linking agent, wherein the cross linking agent is glyoxylic acid, and d—at least one polyol having 2 or more than 2 hydroxyl groups. The resin composition of the present invention can provide performance characteristics to which they are applied.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: January 30, 2007
    Assignee: Clariant (France)
    Inventors: Gregory J. Hopkins, William C. Floyd
  • Patent number: 5639281
    Abstract: This invention relates to methods of applying finishes to garments. More particularly, this invention relates to improved methods for applying specialty finishing on the garments using a cellulose-type based carrier and to a carrier/finish composition for practicing the method which achieves a smooth and even coating of the finishing onto fabric without having to recover unused finishing and which can be accomplished using standard garment production equipment.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: June 17, 1997
    Assignee: Hopkins Chemical Incorporated
    Inventor: Gregory J. Hopkins
  • Patent number: 5082468
    Abstract: A method for pigmenting fabric surfaces to achieve a predetermined nonuniformly colored appearance comprising the steps ofa. introducing fabric into a tumbling machine together with an effective amount of a pigment-containing foam composition, which foam composition comprises water, a dispersed pigment, and auxiliaries;b. tumbling the fabric and foam composition in the tumbling machine for a period of time sufficient to pigment the surface of the fabric thereby creating the desired nonuniformly colored appearance;c. extracting the excess foam composition from the tumbling machine;d. removing the pigmented fabric from the tumbling machine and drying it to cure the pigmented surface;e. washing the pigmented fabric in a detergent composition to remove unbound pigment; andf. drying the pigmented fabric.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: January 21, 1992
    Assignee: Dexter Chemical Corporation
    Inventor: Gregory J. Hopkins
  • Patent number: 4773110
    Abstract: A system for the uniform distribution and delivery of foam finish to a fabric is disclosed. The system includes a pressure manifold for delivery of foam under pressure to a moving fabric which includes inner and outer concentrically disposed conduits. The inner conduit receives foam under pressure from both ends and has an effluent port along the length thereof supplying foam to the outer conduit. The outer conduit includes a slotted port along the length thereof for delivery of foam under pressure to a moving fabric passing across the slotted port. The pressure manifold may include a sleeve which is adjustably positioned to seal the end portions of the slotted port depending on the width of the fabric being foam finished. The system may include two such pressure manifolds, arranged in parallel crosswise to the moving fabric, to apply foam simultaneously to both sides of the fabric.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: September 27, 1988
    Assignee: Dexter Chemical Corporation
    Inventor: Gregory J. Hopkins
  • Patent number: 4750227
    Abstract: An abrasive structure for stone washing garments in a wash medium and a method for abrading garments using that abrasive structure to achieve controlled abrasion of those garments are disclosed. The abrasive structure has a uniform abrasive surface which will not damage or excessively wear fabrics and garments being subjected to the stone washing method, which will not deteriorate during use, and which will provide uniformly stone washed garments having a consistent nap and a low level amount of textile wear. The abrasive structure is formed of a substantially form-retaining material having a resilient abrasive surface. For example, the abrasive structure may be formed of a block of form-retaining material substantially impervious to aqueous washing systems and a resilient layer of synthetic abrasive material substantially surrounding the block and affixed to the exterior surfaces of the block.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: June 14, 1988
    Assignee: Dexter Chemical Corporation
    Inventors: Gregory J. Hopkins, Thomas Holst, Jr.
  • Patent number: 4502304
    Abstract: A foam applicator includes a pressure manifold having a pair of adjacent inner conduits and an outer conduit which surrounds the inner conduits. The inner conduits extend axially beyond the length of the outer conduit and are connected on both ends of each to a source of foam under pressure. The outer conduit has a slotted port formed therein which extends axially along a major portion of the length thereof. One inner conduit has an effluent port formed therein which extends over the central half thereof. The other inner conduit has effluent ports formed therein which extend over the end quarter portions thereof. Foam supplied to the inner conduits under pressure pass through the effluent ports formed in the inner conduits and is evenly distributed over the entire length of the outer conduit. The foam in the outer conduit passes through the slotted port of the outer conduit and is distributed onto a moving fabric passing in contact with the pressure manifold.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: March 5, 1985
    Assignee: Dexter Chemical Corporation
    Inventor: Gregory J. Hopkins