Patents by Inventor Richard M. Lazarus
Richard M. Lazarus 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: 10351724Abstract: Coating formulations for improving hide and holdout without sacrificing adhesion on cementitious substrates are provided. The coating formulations can achieve high hide and holdout with a low pigment volume concentration by utilizing particles with pre-selected oil absorption and particle size range. The coating formulations can be used as a functional for fiber cement substrates. When applied in combination with a top coat, the functional provides provide high hide and hold and enhanced adhesion while reducing pigment loading.Type: GrantFiled: June 21, 2016Date of Patent: July 16, 2019Assignee: James Hardie Technology LimitedInventors: Richard M. Lazarus, John Andrew Joecken, Caidian Luo
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Patent number: 8501863Abstract: A paint composition and formulation for building materials, such as materials that are generally cementitious, gypsum, or of another inorganic building material, including those containing cellulose, glass, steel or polymeric fibers. The paint formulation provides improved weatherability, durability, light stability, freeze-thaw resistance and water resistivity.Type: GrantFiled: June 27, 2008Date of Patent: August 6, 2013Assignee: James Hardie Technology LimitedInventors: Richard M. Lazarus, Caidian Luo
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Publication number: 20090005484Abstract: A paint composition and formulation for building materials, such as materials that are generally cementitious, gypsum, or of another inorganic building material, including those containing cellulose, glass, steel or polymeric fibers. The paint formulation provides improved weatherability, durability, light stability, freeze-thaw resistance and water resistivity.Type: ApplicationFiled: June 27, 2008Publication date: January 1, 2009Inventors: Richard M. Lazarus, Caidian Luo
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Patent number: 6107367Abstract: A thermoplastic traffic marking composition that includes resin(s) and at least two polyethylenes, the polyethylenes having a plurality of molecular weights, can be applied as a profiled traffic stripe within a temperature range of about 330.degree. F. to about 380.degree. F., to a road surface, while substantially retaining the profile in which it was applied.Type: GrantFiled: June 16, 1999Date of Patent: August 22, 2000Assignee: Jackson Products, Inc.Inventors: Richard M. Lazarus, Amelia M. Nucup
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Patent number: 5342734Abstract: A positive working deep UV sensitive photoresist which provides improved critical dimension stability during prolonged periods of post exposure delay before baking comprises an acid stable polymer which is insoluble in water but normally soluble in an aqueous alkaline medium, a photoinitiator which generates acid upon exposure to actinic radiation, and a mixed carbonate ester of tertiary butyl alcohol and a polyhydric phenol which is an acid labile compound which inhibits the dissolution of the normally soluble polymer in said alkaline medium.Type: GrantFiled: May 13, 1992Date of Patent: August 30, 1994Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, John J. Grunwald, Chava Gal, Shulamit Hirsch
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Patent number: 5314782Abstract: A positive working deep UV sensitive photoresist which provides improved critical dimension stability during prolonged periods of post exposure delay before baking comprises an acid stable polymer which is insoluble in water but normally soluble in an aqueous alkaline medium, a photo acid generator exemplified by the tri-(2,1,4-diazonaphthoquinonesulfonate) ester of 3,5-dinitro-2,6-dimethylol para cresol, and a mixed carbonate ester of tertiary butyl alcohol and a polyhydric phenol which is an acid labile compound which inhibits the dissolution of the normally soluble polymer in said alkaline medium.Type: GrantFiled: March 5, 1993Date of Patent: May 24, 1994Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Thomas A. Koes
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Patent number: 5225312Abstract: A positive photoresist of the type containing an alkali-soluble novolac resin and a quinone diazide sensitizer contains a dye of the general formula: ##STR1## wherein R' is lower alkyl, R" is H, alkyl or CO.sub.2 -alkyl, alkyl-CO.sub.2 -alkyl or alkyl-CO.sub.2 -(C.sub.1 -C.sub.3 alkyl-O).sub.n -alkyl (n=1-3) and wherein said dye is compatible with the novolac resin/quinone diazide formulation to at least 0.1 phr. The dye reduces reflective notching. Preferably the photoresist also contain a nitro naphthol dye to reduce the effects of I-Line radiation.Type: GrantFiled: August 2, 1991Date of Patent: July 6, 1993Assignee: Morton International, Inc.Inventors: Sunit S. Dixit, Richard M. Lazarus, Thomas P. Carter, Joseph E. Oberlander, Andreas Goehring, Randall W. Kautz, Grieg Beltramo
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Patent number: 5208138Abstract: Novolak resins are provided which are the condensation product of (a) a phenol, phenol derivative, or mixtures thereof, and (b) a mixture of formaldehyde or a formaldehyde precursor and (1) a monohydroxy aromatic aldehyde and wherein at least a portion of the hydroxyl groups thereof are esterified or (2) a mixture of at least one monohydroxy aromatic aldehyde and at least one non-hydroxylic aromatic aldehyde; the novolak resins having a hydroxyl number of from about 120 to about 180 grams of resin per equivalent of hydroxyl. The novolak resins are especially useful in positive photoresist formulations and have enhanced photospeed and film loss characteristics as well as improved thermal stability.Type: GrantFiled: May 21, 1992Date of Patent: May 4, 1993Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Randall Kautz, Sunit S. Dixit
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Patent number: 5182184Abstract: Novolak resins are provided which are the condensation product of (a) a phenol, phenol derivative, or mixtures thereof, and (b) a mixture of formaldehyde or a formaldehyde precursor and (1) a monohydroxy aromatic aldehyde and wherein at least a portion of the hydroxyl groups thereof are esterified or (2) a mixture of at least one monohydroxy aromatic aldehyde and at least one non-hydroxylic aromatic aldehyde; the novolak resins having a hydroxyl number of from about 120 to about 180 grams of resin per equivalent of hydroxyl. The novolak resins are especially useful in positive photoresist formulations and have enhanced photospeed and film loss characteristics as well as improved thermal stability.Type: GrantFiled: February 5, 1990Date of Patent: January 26, 1993Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Randall Kautz, Sunit S. Dixit
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Patent number: 5130409Abstract: Novolak resins are provided which are the condensation product of (a) a phenol, phenol derivative, or mixtures thereof, and (b) a mixture of formaldehyde or a formaldehyde precursor and an aromatic aldehyde. When the aromatic aldehyde is a monohydroxy aromatic aldehyde, the novolak resin is especially useful in positive photoresist formulations.Type: GrantFiled: November 16, 1990Date of Patent: July 14, 1992Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Randall Kautz, Sunit S. Dixit
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Patent number: 5126230Abstract: Compositions and methods for developing quinone diazide positive-working photoresists. The compositions consist essentially of an aqueous solution of a tetraalkylammonium hydroxide and an adjunct having a structure selected from: ##STR1## wherein n is 0 or 1; m is 1 or 2; and each R.sup.1 and R.sup.2 is independently selected from hydrogen, methyl, or ethyl, but in Structure I the two R.sup.2 's are not both ethyl. The methods involve use of this composition to develop the indicated photoresists. The addition of an adjunct of the indicated type prevents the formation of irregular deposits on the edges of unexposed portions of the photoresist lines when the photoresist is developed. Selection of these adjuncts also increases the uniformity of line widths of photoresist lines developed according to the present invention, and increases the process latitude of the developer.Type: GrantFiled: September 21, 1990Date of Patent: June 30, 1992Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Kenneth L. Bell, Carla M. Bauer
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Method of developing a high contrast, positive photoresist using a developer containing alkanolamine
Patent number: 5094934Abstract: Compositions and methods for developing quinone diazide positive-working photoresists. The compositions consist essentially of an aqueous solution of a tetraalkylammonium hydroxide and an adjunct having a structure selected from: ##STR1## wherein n is 0 or 1; m is 1 or 2; and each R.sup.1 and R.sup.2 is independently selected from hydrogen, methyl, or ethyl, but in Structure I the two R.sup.2 's are not both ethyl. The methods involve use of this composition to develop the indicated photoresists. The addition of an adjunct of the indicated type prevents the formation of irregular deposits on the edges of unexposed portions of the photoresist lines when the photoresist is developed. Selection of these adjuncts also increases the uniformity of line widths of photoresist lines developed according to the present invention, and increases the process latitude of the developer.Type: GrantFiled: August 7, 1990Date of Patent: March 10, 1992Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Kenneth L. Bell, Carla M. Bauer -
Patent number: 4997734Abstract: Novolak resins are provided which are the condensation product of (a) a phenol, phenol derivative, or mixtures thereof, and (b) a mixture of formaldehyde or a formaldehyde precursor and an aromatic aldehyde. When the aromatic aldehyde is a monohydroxy aromatic aldehyde, the novolak resin is especially useful in positive photoresist formulations.Type: GrantFiled: December 21, 1989Date of Patent: March 5, 1991Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Randall M. Kautz, Sunit S. Dixit
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Patent number: 4996122Abstract: Positive photoresist compositions are provided which contain(a) a mixture of mono-, di-, and triesters of 2,3,4-trihydroxybenzophenone and 1,2-naphthoquinone-2-diazo-4-sulfonic acid and(b) a novolak resin selected from resins prepared from a phenolic component having a high p-cresol content or from a mixture of formaldehyde and an aromatic aldehyde.Type: GrantFiled: March 20, 1990Date of Patent: February 26, 1991Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Edward J. Reardon, Sunit S. Dixit
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Patent number: 4943511Abstract: Positive photoresist compositions are provided which contain (a) a mixture of mono-, di-, and triesters of 2,3,4-trihydroxybenzophenone and 1,2-naphthoquinone-2-diazo-4-sulfonic acid and (b) a novolak resin selected from resins prepared from a phenolic component having a high p-cresol content or from a mixture of formaldehyde and an aromatic aldehyde.Type: GrantFiled: July 6, 1989Date of Patent: July 24, 1990Assignee: Morton Thiokol, Inc.Inventors: Richard M. Lazarus, Edward J. Reardon, Sunit S. Dixit
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Patent number: 4920028Abstract: Novolak resins are provided which are the condensation product of (a) a phenol, phenol derivative, or mixtures thereof, and (b) a mixture of formaldehyde or a formaldehyde precursor and an aromatic aldehyde. When the aromatic aldehyde is a monohydroxy aromatic aldehyde, the novolak resin is especially useful in positive photoresist formulations.Type: GrantFiled: August 2, 1988Date of Patent: April 24, 1990Assignee: Morton Thiokol, Inc.Inventors: Richard M. Lazarus, Randall Kautz, Sunit S. Dixit
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Method of developing a high contrast, positive photoresist using a developer containing alkanolamine
Patent number: 4808513Abstract: Compositions and methods for developing quinone diazide positive-working photoresists. The compositions consist essentially of an aqueous solution of a tetraalkylammonium hydroxide primary alkali and an alkanolamine having the following structure: ##STR1## wherein n is zero or 1, and each R is independently selected from hydrogen, methyl, or ethyl. The methods involve use of this composition to develop the indicated photoresists. The addition of an alkanolamine of the indicated type prevents the formation of irregular deposits on the edges of unexposed portions of the photoresist lines when the photoresist is developed. Selection of these alkanolamines also increases the uniformity of line widths of photoresist lines developed according to the present invention, and increases the process latitude of the developer.Type: GrantFiled: April 6, 1987Date of Patent: February 28, 1989Assignee: Morton Thiokol, Inc.Inventors: Richard M. Lazarus, Kenneth L. Bell, Carla M. Bauer