Abstract: An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
Type:
Grant
Filed:
August 21, 1998
Date of Patent:
September 21, 1999
Assignees:
Sanatrol, Inc., Georgia-Pacific Resins, Inc.
Inventors:
A. Richard Sinclair, Richard L. Johnson, II, Richard A. Rediger, Van T. Smith
Abstract: An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
Type:
Grant
Filed:
August 21, 1998
Date of Patent:
September 7, 1999
Assignees:
Sanatrol, Inc., Georgia-Pacific Resins, Inc.
Inventors:
A. Richard Sinclair, Richard L. Johnson, II, Richard Rediger, Van T. Smith
Abstract: An aqueous binder composition containing a urea-formaldehyde resin modified with a water-soluble styrene-maleic anhydride copolymer is used in the preparation of fiber mats.
Type:
Grant
Filed:
February 6, 1997
Date of Patent:
June 22, 1999
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
Shau-Gan Chang, Larry R. Graves, Charles R. Hunter, Stacey L. Wertz
Abstract: The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styrene derivative and an aryl diolefin. In addition to the phenolic monomer, styrene derivative and aryl diolefin, other reactants may be introduced to produce a product with particular properties.
Type:
Grant
Filed:
January 10, 1997
Date of Patent:
March 30, 1999
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
David A. Hutchings, Jeffrey L. Mills, Kenneth Bourlier
Abstract: A low molecular weight lignin fraction having a pre-selected molecular weight range prepared from lignin solution by ultrafiltration. The invention also relates to phenol-formaldehyde resin modified by the lignin fraction, adhesive comprising the modified resin, and a method for producing the lignin fraction and the resin.
Type:
Grant
Filed:
May 19, 1993
Date of Patent:
February 2, 1999
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
Ted M. McVay, Gene F. Baxter, Frederick C. Dupre, Jr.
Abstract: This invention relates to a resin composition capable of being thermally cured having both a long pot life at low temperatures and a fast curing rate at higher temperatures containing a mixture of (a) a phenol-formaldehyde resole resin, and (b) a latent curing agent selected from a particular class of nitrogen-containing acidic phosphorus compounds made from either phosphoric acid or phosphorous acid.
Abstract: An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
Type:
Grant
Filed:
March 5, 1996
Date of Patent:
November 17, 1998
Assignees:
Santrol, Inc., Georgia-Pacific Resins, Inc.
Inventors:
A. Richard Sinclair, Richard L. Johnson, II, Richard A. Rediger, Van T. Smith
Abstract: A decorative, high-pressure laminate produced with a sorbitol-modified melamine-formaldehyde resin and methods of making high-pressure laminates.
Abstract: The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styrene derivative and an aryl diolefin. In addition to the phenolic monomer, styrene derivative and aryl diolefin, other reactants may be introduced to produce a product with particular properties.
Type:
Grant
Filed:
January 3, 1997
Date of Patent:
June 30, 1998
Assignee:
Georgia-Pacific Resins Inc.
Inventors:
David A. Hutchings, Jeffrey L. Mills, Kenneth Bourlier
Abstract: Phenolic aralkylation polymers modified by esterification with fatty acids, transesterification with glyceride oils, or other modifications to reactive hydroxyl moieties to improve the characteristics and properties of coating systems in which the modified materials are incorporated. At least a portion of the hydroxyl moieties of the polyol is esterified or otherwise modified. The hydroxyl moieties include those that have been "chain-extended," if desired.
Type:
Grant
Filed:
January 10, 1997
Date of Patent:
June 23, 1998
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
David A. Hutchings, Rajan Hariharan, Edward Lucas, Jr., Syed A. Elahi, Alan K. Randall, Kenneth Bourlier
Abstract: A guanidine-modified phenol-formaldehyde resole resin by reacting formaldehyde and phenol at a formaldehyde to phenol mole ratio above about 1.5:1 in the presence of an effective amount of an alkaline catalyst and in the presence of a catalytic amount of a guanidine salt. The resin is suitable for use in adhesives for high moisture content substrates.
Abstract: The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styrene derivative and an aryl diolefin. In addition to the phenolic monomer, styrene derivative and aryl diolefin, other reactants may be introduced to produce a product with particular properties.
Type:
Grant
Filed:
January 3, 1997
Date of Patent:
May 26, 1998
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
David A. Hutchings, Jeffrey L. Mills, Kenneth Bourlier
Abstract: The present invention is directed to a method for preparing phenol aralkylation polymers by reaction among a phenolic monomer, a styrenic monomer and an aryl diolefin, characterized by the absence of a solvent, wherein a phenolic monomer is initially aralkylated in the presence of an acid catalyst with a first portion of at least one styrenic monomer to obtain an aralkylated phenol, the aralkylated phenol is reacted with an aryl diolefin to obtain a phenol aralkylation polymer, and then optionally, (though preferably) the phenol aralkylation polymer is further aralkylated with a second portion of at least one styrenic monomer.
Type:
Grant
Filed:
January 10, 1997
Date of Patent:
May 26, 1998
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
Edward Lucas, Jr., Alan K. Randall, David A. Hutchings, David Valdez, Ellen V. Nagy
Abstract: The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styrene derivative and an aryl diolefin. In addition to the phenolic monomer, styrene derivative and aryl diolefin. In addition to the introduced to produce a product with particular properties.
Type:
Grant
Filed:
January 3, 1997
Date of Patent:
April 14, 1998
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
David A. Hutchings, Jeffrey L. Mills, Kenneth Bourlier
Abstract: A coated panel formed from a self-supporting cellulosic substrate and a top coating containing a thermoset resin having about 0.1-1.5 wt % free formaldehyde admixed with said resin; and (b) a thermoplastic polymer thoroughly admixed with said resin, wherein said thermoplastic polymer exhibits amine groups capable of reacting with at least some of the free formaldehyde under resin curing conditions. The coated panel can be embossed with decorative patterns such as wood grain without fracture of the coated surface or significant buildup on the press or embossing die surfaces.
Abstract: The present invention relates to a sulfonated water-soluble melamine-formaldehyde resin, to a method of manufacturing the resin, and to insulation products prepared using the resin. The resin is particularly useful for making thermal insulation having low moisture adsorption, high tensile strength and low formaldehyde emissions.
Abstract: This invention relates to an emulsifiable melamine-modified phenolic resole resin composition useful as a binder for glass fibers. The invention is more particularly directed to the process of preparing the resole resin composition using an alkaline condensation in the presence of a polyhydroxyl compound.
Type:
Grant
Filed:
March 7, 1997
Date of Patent:
January 13, 1998
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
Claude Phillip Parks, Kurt Forrest Anderson
Abstract: A method of scavenging formaldehyde in formaldehyde-based resins using a low mole ratio melamine-urea-formaldehyde resin composition. In addition, a formaldehyde-based resin containing a storage-stable low mole ratio melamine-urea-formaldehyde resin composition as a formaldehyde scavenger.
Type:
Grant
Filed:
March 26, 1996
Date of Patent:
November 4, 1997
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
Robert A. Breyer, Bill R. Arndell, Semyon Stompel
Abstract: A low mole ratio melamine-urea-formaldehyde resin useful as a binder for making a variety of products, and a method for making the resin. The melamine-urea-formaldehyde resin thus produced is stable and has low formaldehyde emissions (release).
Type:
Grant
Filed:
March 26, 1996
Date of Patent:
October 28, 1997
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
Robert A. Breyer, Solona G. Hollis, Joseph J. Jural, deceased
Abstract: The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styrene derivative and an aryl diolefin. In addition to the phenolic monomer, styrene derivative and aryl diolefin, other reactants may be introduced to produce a product with particular properties.
Type:
Grant
Filed:
July 12, 1995
Date of Patent:
October 7, 1997
Assignee:
Georgia-Pacific Resins, Inc.
Inventors:
David A. Hutchings, Jeffrey L. Mills, Kenneth Bourlier