Patents by Inventor Edwin J. MacPherson
Edwin J. MacPherson 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).
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Patent number: 4945077Abstract: The invention relates to the preparation of closed cell phenolic resin foams produced from compositions of phenol-aldehyde resole resins, and the foam products thus prepared. More particularly the present invention relates to the preparation of phenolic resin foams by a method employing a novel modified phenolic foam catalyst. The invention also relates to these modified phenolic foam catalysts which include an aromatic sulphonic acid and resorcinol.Type: GrantFiled: September 18, 1989Date of Patent: July 31, 1990Assignee: Fiberglass Canada Inc.Inventors: Paul J. Meunier, James Lunt, Edwin J. MacPherson
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Patent number: 4883824Abstract: The invention relates to the preparation of closed cell phenolic resin foams produced from compositions of phenol-aldehyde resole resins, and the foam products thus prepared. More particularly the present invention relates to the preparation of phenolic resin foams by a method employing a novel modified phenolic foam catalyst. The invention also relates to these modified phenolic foam catalysts which include an aromatic sulphonic acid and resorcinol.Type: GrantFiled: February 9, 1989Date of Patent: November 28, 1989Assignee: Fiberglas Canada, Inc.Inventors: Paul J. Meunier, James Lunt, Edwin J. MacPherson
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Patent number: 4882364Abstract: This invention relates to the manufacture of closed cell phenolic foams from low viscosity phenol-formaldehyde resole resin. This method of manufacture provides a foam which exhibits many of the advantageous characteristics of phenolic foams manufactured from high viscosity resole resin, including good thermal retention. There is provided a method of making a phenolic foam comprising the steps of mixing(a) a phenol-formaldehyde resole resin having a water content of approximately 7.5% and a viscosity of approximately 2,800 cps at 40.degree. C.;(b) a high molecular weight gel forming ethylene oxide-propylene oxide block copolymer surfactant, such as Pluronic F-127 (trade mark);(c) a catalyst;(d) a blowing agent;and curing the resulting foam.Type: GrantFiled: April 25, 1988Date of Patent: November 21, 1989Assignee: Fiberglas Canada Inc.Inventors: Teresa M. Kyle, Paul J. Meunier, Edwin J. MacPherson
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Patent number: 4576972Abstract: This invention relates to the manufacture of foam from phenolic resins and to the foam so produced. In order to overcome some of the limitations of the prior art closed cell phenolic foams, we have developed a method of preparing closed cell foams from modified, low cost phenol formaldehyde resoles, which exhibit high closed cell contents, low friability and low thermal conductivity. This specification provides a foam competitive with urethane foams, which have an aged thermal conductivity of about 0.16K. or less, but which will not generate fumes as toxic as those of urethane. There is, provided a method of making a phenolic foam material comprising the steps of(1) preparing a base catalyzed phenol-formaldehyde resole having a mole ratio of phenol to formaldehyde of between 1:3 and 1:4.Type: GrantFiled: July 29, 1985Date of Patent: March 18, 1986Assignee: Fiberglas Canada, Inc.Inventors: James Lunt, Edwin J. MacPherson, Paul J. Meunier
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Patent number: 4546119Abstract: This invention relates to the manufacture of foam from phenolic resins and to the foam so produced. In order to overcome some the the limitations of the prior art closed cell phenolic foams, we have developed a method of preparing closed cell foams from modified, low cost phenol formaldehyde resoles, which exhibit high closed cell contents, low friability and low thermal conductivity. This specification provides a foam competitive with urethane foams, which have an aged thermal conductivity of about 0.16K. or less, but which will not generate fumes as toxic as those of urethane. There is, provided a method of making a phenolic foam material comprising the steps of(1) preparing a base catalyzed phenol-formaldehyde resole having a mole ratio of phenol to formaldehyde of between 1:3 and 1:4.Type: GrantFiled: November 29, 1984Date of Patent: October 8, 1985Assignee: Fiberglas Canada, Inc.Inventors: James Lunt, Edwin J. MacPherson, Paul J. Meunier
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Patent number: 4525492Abstract: Phenolic foams and a method of producing phenolic foam material from phenol-formaldehyde resins having a phenol to formaldehyde mole ratio of between about 1:3 and 1:4.5 are described. These materials are useful for insulation and other uses, particularly in the building trades. They are dimensionally and thermally stable, fire resistant and low in cost.Type: GrantFiled: June 4, 1982Date of Patent: June 25, 1985Assignee: Fiberglas Canada Inc.Inventors: Mary H. Rastall, Norman H. Ng, Edwin J. MacPherson
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Patent number: 4480068Abstract: A phenol-formaldehyde resol to which urea has been added is mixed with a boric acid-hydroxyl-amide component to provide high temperature resistant binder compositions for use in the manufacture of thermally stable bonded mineral fibre insulation structures.Type: GrantFiled: September 14, 1981Date of Patent: October 30, 1984Assignee: Fiberglas Canada Inc.Inventors: Ruben A. Santos, William G. Kipp, Edwin J. MacPherson
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Patent number: 4339361Abstract: A water-dilutable thermo-setting resol is prepared from phenol, formaldehyde, an amide and a sugar type compound. The invention provides advance in the art by allowing replacement of some of the phenol-formaldehyde resin contained in the resol with sugar type compounds.Type: GrantFiled: July 28, 1980Date of Patent: July 13, 1982Assignee: Fiberglas Canada, Inc.Inventors: Edwin J. MacPherson, Daniel A. Frenette
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Patent number: 4257517Abstract: A scraper bar for use with conveyor belting and the like to clean such belting of material adhering to its surface. The scraper bar consists of a layer of hard abrasion-resistant pellets embedded in an elastomer to form an elastomer/pellet matrix. An additional layer of elastomer is cast to the matrixed layer to provide a surface for attaching the scraper to its support when in service. Embedded in the layer of unmatrixed elastomer is an insert of particle board, chipboard, plywood or fibreglass reinforced plastic sheeting. The insert prevents bowing of the scraper bar due to differential shrinkage between the layer of matrixed elastomer and pellets and the supporting layer of elastomer.Type: GrantFiled: December 6, 1976Date of Patent: March 24, 1981Assignee: Uniroyal Ltd.Inventors: Edwin J. MacPherson, Peter J. Alderson, Douglas A. Skinner
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Patent number: 4120861Abstract: Plant growth regulant effects, such as dwarfing, cessation of terminal growth, increased flower set, increased fruit and pod set, fruiting body abortion, twisting and epinastic responses, etc., may be accomplished on crops such as soybeans, cotton, etc., by application of certain 2-(1,3,4-oxadiazol-2-yl) or 2-(2-oxazolyl) or 2-(1,3,4-thiadiazol-2-yl)benzoic acids, salts and esters, having the formula ##STR1## where X is nitrogen or C-R" (R" being hydrogen or methyl), Z is oxygen or sulfur when X is nitrogen, Z is oxygen when X is C-R", R is phenyl or various substituents, and R' is hydrogen or various substituents. An example is 2-(5-phenyl-1,3,4-oxadiazol-2-yl) benzoic acid. The compounds where X is nitrogen and Z is sulfur are new compounds, e.g., 2-(5-phenyl-1,3,4-thiadiazol-2-yl)benzoic acid.Type: GrantFiled: May 2, 1977Date of Patent: October 17, 1978Assignees: Uniroyal, Inc., Uniroyal Ltd.Inventors: Walter G. Brouwer, Edwin J. MacPherson, Ronald B. Ames, Robert W. Neidermyer, Charles E. Crittendon
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Patent number: 4035175Abstract: Plant growth regulant effects, such as dwarfing, cessation of terminal growth, increased flower set, increased fruit and pod set, fruiting body abortion, twisting and epinastic responses, etc., may be accomplished on crops such as soybeans, cotton, etc., by application of certain 2-(1,3,4-oxadiazol-2-yl) or 2-(2-oxazolyl) or 2-(1,3,4-thiadiazol-2-yl)benzoic acids, salts and esters, having the formula ##STR1## where X is nitrogen or C--R" (R" being hydrogen or methyl), Z is oxygen or sulfur when X is nitrogen, Z is oxygen and when X is C--R", R is phenyl or various substituents, and R' is hydrogen or various substituents. An example is 2-(5-phenyl-1,3,4-oxadiazol-2-yl)benzoic acid. The compounds where X is nitrogen and Z is sulfur are new compounds, e.g., 2-(5-phenyl-1,3,4-thiadiazol-2-yl)benzoic acid.Type: GrantFiled: January 12, 1976Date of Patent: July 12, 1977Assignees: Uniroyal Inc., Uniroyal, Ltd.Inventors: Walter G. Brouwer, Edwin J. MacPherson, Ronald B. Ames, Robert W. Neidermyer, Charles E. Crittendon
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Patent number: 3964896Abstract: New 2-(1,3,4-oxadiazole-2-yl) benzoic acids and salts and esters thereof, as well as certain 2-(2-oxazolyl) benzoic acids, salts and esters, having the formula: ##SPC1##Where X is nitrogen or C-R" (R" being hydrogen or methyl), R is phenyl or various substituents, and R' and the Y's are hydrogen or various substituents, are effective preemergence or postemergence herbicides, on various crops. The chemicals act selectively and are useful against purple nutsedge and in cranberry. Oxadiazoles of the invention may be made by reacting a benzhydrazide with phthalic anhydride to form a hydrazide which is cyclized by removal of the elements of water, using as a catalyst fuming sulfuric acid or dimethylformamide-sulfur trioxide complex.Type: GrantFiled: February 5, 1975Date of Patent: June 22, 1976Assignee: Uniroyal, Inc.Inventors: Walter G. Brouwer, Edwin J. MacPherson, Ronald B. Ames, Robert W. Neidermyer
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Patent number: 3947263Abstract: Plant growth regulant effects, such as dwarfing, cessation of terminal growth, increased flower set, increased fruit and pod set, fruiting body abortion, twisting and epinastic responses, etc., may be accomplished on crops such as soybeans, cotton, etc., by application of certain 2-(1,3,4-oxadiazol-2-yl) or 2-(2-oxazolyl) or 2-(1,3,4-thiadiazol-2-yl)benzoic acids, salts and esters, having the formula ##SPC1##Where X is nitrogen or C--R" (R" being hydrogen or methyl), Z is oxygen or sulfur when X is nitrogen, Z is oxygen when X is C--R", R is phenyl or various substituents, and R' is hydrogen or various substituents. An example is 2-(5-phenyl-1,3,4-oxadiazol-2-yl)benzoic acid. The compounds where X is nitrogen and Z is sulfur are new compounds, e.g., 2-(5-phenyl-1,3,4-thiadiazol-2-yl)benzoic acid.Type: GrantFiled: July 29, 1974Date of Patent: March 30, 1976Assignees: Uniroyal, Inc., Uniroyal Ltd.Inventors: Walter G. Brouwer, Edwin J. MacPherson, Ronald B. Ames, Robert W. Neidermyer, Charles E. Crittendon