Patents Assigned to Indspec Chemical Corporation
-
Patent number: 8742033Abstract: A method of stabilizing a resorcinol-aldehyde resin comprises heating a resorcinol-aldehyde resin in the substantial absence of an acid or base catalyst at a temperature from about 130° C. to about 180° C. for a sufficient amount of time to render the resin stable in an aqueous solution, wherein the resorcinol-aldehyde resin prior to heating is a novolak resin. The stabilized resins have many useful applications. For example, they can be used to make aerogels and xerogels. They also can be used to make dipping solutions to improve the adhesion between rubber and tire cords in a tire, belt, or hose.Type: GrantFiled: December 15, 2009Date of Patent: June 3, 2014Assignee: Indspec Chemical CorporationInventor: Theodore Harvey Dailey
-
Patent number: 7705088Abstract: Resorcinol-blocked isocyanate compositions are derived from the reaction between a resorcinol compound and at least two different isocyanate compounds. The resorcinol-blocked isocyanate compositions may have two or more unblocking temperatures and/or melting characteristics that may provide some unique properties, such as improved adhesion of rubber reinforcing materials to rubber materials or compounds. The resorcinol-blocked isocyanate compositions can be used in fabric dipping formulations and/or rubber compositions with improved properties.Type: GrantFiled: November 29, 2006Date of Patent: April 27, 2010Assignee: INDSPEC Chemical CorporationInventors: Raj B. Durairaj, Gary A. Jesionowski, Mark A. Lawrence
-
Patent number: 7700687Abstract: Resorcinol resin-blocked isocyanate compositions are derived from the reaction between a resorcinol resin and at least two different isocyanate compounds. The resorcinol resin-blocked isocyanate compositions may have two or more unblocking temperatures and/or melting characteristics that may provide some unique properties, such as improved adhesion of reinforcing materials to rubber compounds. The resorcinol resin-blocked isocyanate compositions can be used in fabric dipping formulations and/or rubber compositions with improved properties.Type: GrantFiled: November 29, 2006Date of Patent: April 20, 2010Assignee: INDSPEC Chemical CorporationInventors: Raj B. Durairaj, Gary A. Jesionowski, Mark A. Lawrence
-
Publication number: 20100093972Abstract: A method of stabilizing a resorcinol-aldehyde resin comprises heating a resorcinol-aldehyde resin in the substantial absence of an acid or base catalyst at a temperature from about 130° C. to about 180° C. for a sufficient amount of time to render the resin stable in an aqueous solution, wherein the resorcinol-aldehyde resin prior to heating is a novolak resin. The stabilized resins have many useful applications. For example, they can be used to make aerogels and xerogels. They also can be used to make dipping solutions to improve the adhesion between rubber and tire cords in a tire, belt, or hose.Type: ApplicationFiled: December 15, 2009Publication date: April 15, 2010Applicant: INDSPEC Chemical CorporationInventor: Theodore Harvey Dailey
-
Patent number: 7439289Abstract: Benzoylresorcinol-based phosphate esters are obtained by reacting a benzoylresorcinol compound with a chlorophosphate. The benzoylresorcinol-based phosphate esters can function as flame retardants and/or UV stabilizers for polycarbonates (PC), poly(phenylene oxide) (PPO), polyesters (e.g., PET and PBT), polycarbonate and acrylonitrile-butadiene-styrene terpolymer (PC/ABS) blends, poly(phenylene oxide) and high-impact polystyrene (PPO/HIPS) blends and other polymers. The benzoylresorcinol-based phosphate ester flame retardants may possess enhanced thermal stability compared to resorcinol based phosphate ester (RDP). Synthetic procedures and applications of the benzoylresorcinol-based phosphate esters compounds are provided.Type: GrantFiled: September 21, 2005Date of Patent: October 21, 2008Assignee: Indspec Chemical CorporationInventors: Raj B. Durairaj, Gary A. Jesionowski
-
Publication number: 20080112876Abstract: A method of stabilizing a resorcinol-aldehyde resin comprises heating a resorcinol-aldehyde resin in the substantial absence of an acid or base catalyst at a temperature from about 130° C. to about 180° C. for a sufficient amount of time to render the resin stable in an aqueous solution, wherein the resorcinol-aldehyde resin prior to heating is a novolak resin. The stabilized resins have many useful applications. For example, they can be used to make aerogels and xerogels. They also can be used to make dipping solutions to improve the adhesion between rubber and tire cords in a tire, belt, or hose.Type: ApplicationFiled: October 17, 2007Publication date: May 15, 2008Applicant: INDSPEC CHEMICAL CORPORATIONInventor: Theodore Harvey Dailey
-
Publication number: 20080090967Abstract: A modified alkylresorcinol resin is prepared by reacting one or more alkylresorcinols with one or more aldehydes and optionally an olefinically unsaturated compound. The reaction may be carried out in the presence of a catalyst. The resulted modified alkylresorcinol resin can be used as a methylene acceptor that reacts with methylene donors in vulcanizable rubber compositions.Type: ApplicationFiled: October 11, 2007Publication date: April 17, 2008Applicant: INDSPEC Chemical CorporationInventor: Theodore Harvey Dailey
-
Publication number: 20070219306Abstract: Resorcinol resin-blocked isocyanate compositions are derived from the reaction between a resorcinol resin and at least two different isocyanate compounds. The resorcinol resin-blocked isocyanate compositions may have two or more unblocking temperatures and/or melting characteristics that may provide some unique properties, such as improved adhesion of reinforcing materials to rubber compounds. The resorcinol resin-blocked isocyanate compositions can be used in fabric dipping formulations and/or rubber compositions with improved properties.Type: ApplicationFiled: November 29, 2006Publication date: September 20, 2007Applicant: INDSPEC Chemical CorporationInventors: Raj B. Durairaj, Gary A. Jesionowski, Mark A. Lawrence
-
Publication number: 20070205393Abstract: Resorcinol-blocked isocyanate compositions are derived from the reaction between a resorcinol compound and at least two different isocyanate compounds. The resorcinol-blocked isocyanate compositions may have two or more unblocking temperatures and/or melting characteristics that may provide some unique properties, such as improved adhesion of rubber reinforcing materials to rubber materials or compounds. The resorcinol-blocked isocyanate compositions can be used in fabric dipping formulations and/or rubber compositions with improved properties.Type: ApplicationFiled: November 29, 2006Publication date: September 6, 2007Applicant: INDSPEC Chemical CorporationInventors: Raj B. Durairaj, Gary A. Jesionowski, Mark A. Lawrence
-
Publication number: 20070112235Abstract: Oxychlorination catalyst compositions which include a catalytically effective amount of an oxychlorination catalyst and a diluent having certain chemical composition and/or physical properties are disclosed. Processes using such oxychlorination catalyst compositions are also described. Some oxychlorination catalyst compositions and processes disclosed herein can increase the optimal operating temperature, and thereby increase the production capacity of an existing reactor, such as a fluid-bed reactor, compared to other oxychlorination catalyst compositions.Type: ApplicationFiled: November 10, 2006Publication date: May 17, 2007Applicant: INDSPEC Chemical CorporationInventors: Keith Kramer, Joseph Cowfer
-
Publication number: 20070093596Abstract: A flexibilized resorcinolic novolak resin is prepared by reacting a phenolic compound, such as resorcinol, with an unsaturated dihydroxy, an unsaturated aldehyde, an aliphatic dialdehyde, or a mixture thereof. An aldehyde (different from the unsaturated aldehyde and the aliphatic dialdehyde) is either simultaneously or subsequently added to the reaction mixture. The flexibilized resorcinolic novolak resin can be used in an adhesive composition for enhancing the adhesion between tire cords and rubber for tire applications.Type: ApplicationFiled: December 6, 2006Publication date: April 26, 2007Applicant: INDSPEC CHEMICAL CORPORATIONInventors: Raj Durairaj, Mark Lawrence
-
Patent number: 7196156Abstract: A flexibilized resorcinolic novolak resin is prepared by reacting a phenolic compound, such as resorcinol, with an unsaturated dihydroxy, an unsaturated aldehyde, an aliphatic dialdehyde, or a mixture thereof. An aldehyde (different from the unsaturated aldehyde and the aliphatic dialdehyde) is either simultaneously or subsequently added to the reaction mixture. The flexibilized resorcinolic novolak resin can be used in an adhesive composition for enhancing the adhesion between tire cords and rubber for tire applications.Type: GrantFiled: December 12, 2003Date of Patent: March 27, 2007Assignee: Indspec Chemical CorporationInventors: Raj B. Durairaj, Mark A. Lawrence
-
Patent number: 7074861Abstract: A modified resorcinol resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an olefinically unsaturated compound (e.g., styrene) and two types of aldehyde: a formaldehyde and an alkyl aldehyde (e.g., butyraldehyde). The reaction is typically carried out in the presence of an acid catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.Type: GrantFiled: February 18, 2003Date of Patent: July 11, 2006Assignee: INDSPEC Chemical CorporationInventors: Raj Durairaj, Mark A. Lawrence
-
Publication number: 20060069191Abstract: A modified phenolic novolak resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an aliphatic polyol. The reaction mixture further reacts with a formaldehyde to produce a modified phenolic novolak resin. The reaction is typically carried out in the presence of an acid or a base catalyst. The resulting resin is characterized by a relatively low level of free resorcinol; and rubber compounds containing the resin exhibit low fuming, lower Mooney viscosity (which means better processing), better dynamic stiffness properties (G?), and/or good tear properties. Therefore, the resulting resin can be used as a methylene acceptor compound in a vulcanizable rubber composition.Type: ApplicationFiled: September 23, 2005Publication date: March 30, 2006Applicant: INDSPEC Chemical CorporationInventors: Raj Durairaj, C. Walkup, Mark Lawrence
-
Publication number: 20060063866Abstract: Resorcinol carbonate-based phosphate esters are prepared by reacting resorcinol carbonates with phosphorous oxychloride or a chlorophosphate. The resorcinol carbonates can be synthesized by the reaction of resorcinol with phosgene or diphenyl carbonate. The resorcinol carbonate-based phosphate esters can be used as flame retardants and perhaps flowing agents.Type: ApplicationFiled: September 21, 2005Publication date: March 23, 2006Applicant: INDSPEC Chemical CorporationInventors: Raj Durairaj, Gary Jesionowski
-
Publication number: 20060063867Abstract: Flavan-based and spirodichroman compound-based phosphate esters prepared by reacting flavans and spirodichroman compounds with phosphorus oxychloride, monophenyl dichlorophosphate, or diphenyl chlorophosphate compounds are described. The flavans and spirodichroman compounds can be synthesized by the reaction of resorcinol with aliphatic acetone. Such phosphate esters can be used as flame retardants.Type: ApplicationFiled: September 21, 2005Publication date: March 23, 2006Applicant: INDSPEC Chemical CorporationInventors: Raj Durairaj, Gary Jesionowski
-
Publication number: 20060063865Abstract: Benzoylresorcinol-based phosphate esters are obtained by reacting a benzoylresorcinol compound with a chlorophosphate. The benzoylresorcinol-based phosphate esters can function as flame retardants and/or UV stabilizers for polycarbonates (PC), poly(phenylene oxide) (PPO), polyesters (e.g., PET and PBT), polycarbonate and acrylonitrile-butadiene-styrene terpolymer (PC/ABS) blends, poly(phenylene oxide) and high-impact polystyrene (PPO/HIPS) blends and other polymers. The benzoylresorcinol-based phosphate ester flame retardants may possess enhanced thermal stability compared to resorcinol based phosphate ester (RDP). Synthetic procedures and applications of the benzoylresorcinol-based phosphate esters compounds are provided.Type: ApplicationFiled: September 21, 2005Publication date: March 23, 2006Applicant: INDSPEC Chemical CorporationInventors: Raj Durairaj, Gary Jesionowski
-
Patent number: 6875807Abstract: A silane-modified phenolic resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an aldehyde to produce a phenolic novolak resin. The phenolic novolak resin is further reacted with at least one silane compound to produce the silane-modified phenolic resin. The reaction is typically carried out in the presence of an acid or base catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.Type: GrantFiled: May 28, 2003Date of Patent: April 5, 2005Assignee: Indspec Chemical CorporationInventors: Raj B. Durairaj, C. Michael Walkup, Mark A. Lawrence
-
Publication number: 20040241331Abstract: A silane-modified phenolic resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an aldehyde to produce a phenolic novolak resin. The phenolic novolak resin is further reacted with at least one silane compound to produce the silane-modified phenolic resin. The reaction is typically carried out in the presence of an acid or base catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.Type: ApplicationFiled: May 28, 2003Publication date: December 2, 2004Applicant: INDSPEC Chemical CorporationInventors: Raj B. Durairaj, C. Michael Walkup, Mark A. Lawrence
-
Patent number: RE42100Abstract: A vulcanizable rubber composition and method for making the same are disclosed. The rubber composition comprises a rubber component mixed with a methylene donor and methylene acceptor; the methylene acceptor is 3-hydroxydiphenylamine.Type: GrantFiled: March 24, 2005Date of Patent: February 1, 2011Assignee: INDSPEC Chemical CorporationInventors: Raj B. Durairaj, Alex Peterson, Jr.