| Patent Number |
Title Of Patent |
Date Issued |
| 6797789 |
Phenolic/polyurea coating co-polymer compositions and process |
September 28, 2004 |
| This invention relates to the process of preparation and application of a plural component, fast cure phenolic/polyurea elastomer coating co-polymer system. The disclosed coating system is prepared from the reaction of an isocyanate component and an amine terminated resin blend component |
| 6605684 |
Method of preparing spray elastomer systems |
August 12, 2003 |
| This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is greater than the moles of dialkyl maleate; |
| 6399736 |
Method of preparing spray elastomer systems |
June 4, 2002 |
| This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is greater than the moles of dialkyl maleate; |
| 6013755 |
Method of preparing an aliphatic polyurea spray elastomer system |
January 11, 2000 |
| This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is less than the moles of dialkyl maleate; (b) |
| 5962618 |
Polyurea spray railcar lining systems |
October 5, 1999 |
| Spray polyurea elastomer systems have improved adhesion to a substrate with the incorporation of a functional alkoxy silane and water. Such systems typically also include a quasi-prepolymer of an isocyanate and an active hydrogen-containing material, and at least one amine resin, and pre |
| 5962144 |
Polyurea elastomer systems with improved adhesion to substrates |
October 5, 1999 |
| Polyurea elastomer systems have improved adhesion to a substrate with the use of a primer that is applied first. The primer is composed of hydrophobic, primary hydroxyl-containing compound, for example, castor oil, and an isocyanate. It is not necessary to wait for the primer to cure |
| 5759695 |
Polyurea elastomer systems with improved adhesion to substrates |
June 2, 1998 |
| Polyurea elastomer systems have improved adhesion to a substrate with the use of a primer that is applied first. The primer is composed of hydrophobic, primary hydroxyl-containing compound, for example, castor oil, and an isocyanate. It is not necessary to wait for the primer to cure |
| 5731397 |
Polyurea spray railcar lining systems |
March 24, 1998 |
| Spray polyurea elastomer systems have improved adhesion to a substrate with the incorporation of a functional alkoxy silane and water. Such systems typically also include a quasi-prepolymer of an isocyanate and an active hydrogen-containing material, and at least one amine resin, and pre |
| 5616677 |
Preparation of sprayable aliphatic polyurea elastomers having improved properties |
April 1, 1997 |
| This invention discloses an aliphatic spray polyurea elastomer comprising an (A) component that includes an aliphatic isocyanate and a (B) component that includes (1) an amine-terminated polyoxyalkylene polyol and (2) a cycloaliphatic diamine chain extender, wherein between about 20% to |
| 5504181 |
Aliphatic spray polyurea elastomers |
April 2, 1996 |
| An aliphatic spray polyurea elastomer is disclosed. The elastomer comprises an (A) and (B) component. The (A) component includes an aliphatic isocyanate. The (B) component includes an amine terminated polyoxyalkylene polyol and an amine terminated aliphatic chain extender. |
| 5480955 |
Aliphatic spray polyurea elastomers |
January 2, 1996 |
| An aliphatic spray polyurea elastomer is disclosed. The elastomer comprises an (A) and (B) component. The (A) component includes an aliphatic isocyanate. The (B) component includes an amine terminated polyoxyalkylene polyol and an amine terminated aliphatic chain extender. |
| 5442034 |
Spray polyurea elastomers containing organic carbonates to improve processing characteristics |
August 15, 1995 |
| Spray polyurea elastomers are disclosed made from an (A) component and a (B) component, where the (A) component has a quasi-prepolymer made from an isocyanate and an active hydrogen-containing material, such as a polyoxyalkylenepolyamine. The (B) component includes an amine resin, such |
| 5317076 |
Polyurea elastomer with reduced moisture vapor transmission |
May 31, 1994 |
| A polyurea elastomer which exhibits a reduced moisture transfer rate is disclosed. The elastomer includes an isocyanate, an amine terminated 1,2-polyoxybutylene diol and a chain extender. The isocyanate is preferably a quasiprepolymer of an isocyanate and a material selected from at |
| 5266671 |
Spray polyurea elastomers with abrasion resistance |
November 30, 1993 |
| A spray polyurea elastomer which exhibits improved resistance to abrasion is disclosed. The elastomer includes an isocyanate, an amine terminated polyoxyalkylene polyol, a chain extender and a chemically sized filler material. The isocyanate is preferably a quasi-prepolymer of an isoyana |
| 5189073 |
Process for the production of expanded materials based on polyurea elastomers |
February 23, 1993 |
| A process for the production of expanded polyurea elastomers which comprises reacting:a) an aliphatic polyetheramine having primary amino functions and essentially no free hydroxyl groups;b) carbon dioxide in the form of carbamate, obtained by reacting carbon dioxide with a portion of th |
| 5171819 |
Alkyl substituted piperazines as chain extenders in polyurea elastomer systems |
December 15, 1992 |
| A polyurea elastomer is disclosed. The elastomer includes an isocyanate, an amine terminated polyoxyalkylene polyol, and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high molecular weight polyox |
| 5162388 |
Aliphatic polyurea elastomers |
November 10, 1992 |
| An aliphatic polyurea elastomer is disclosed. The elastomer comprises an (A) and a (B) component. The (A) component includes an aliphatic isocyanate. The (B) component includes an amine terminated polyoxyalkylene polyol and a chain extender including an aliphatic spray polyurea elast |
| 5153232 |
Foamed polyurea elastomer-rigid and close-celled |
October 6, 1992 |
| A polyurea elastomer foam is disclosed. Specifically, the polyurea foam of this invention includes an (A) component including an isocyanate and a (B) component including (1) a primary amine terminated polyoxyalkylene polyol, (2) a chain extender, (3) water employed as the sole blowing ag |
| 5124426 |
Sprayable polyurea elastomer made from reaction of isocyanate compound with amine terminated pol |
June 23, 1992 |
| A pourable and/or sprayable polyurea elastomer is disclosed. The elastomer includes an isocyanate, an amine terminated polyoxyalkylene polyol, and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high |
| 5082917 |
Piperazine derivatives as chain extenders in polyurea elastomer systems and method making same |
January 21, 1992 |
| A polyurea elastomer is disclosed. The elastomer includes an isocyanate, an amine terminated polyoxyalkylene polyol, and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high molecular weight polyox |
| 5013813 |
Polyurea elastomer with rapid dry time |
May 7, 1991 |
| A polyurea elastomer which exhibits a rapid dry time is disclosed. The elastomer includes an isocyanate, an amine terminated polytetrahydrofuran and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high |
| 4891086 |
Strand coating method |
January 2, 1990 |
| A process for polymer coating of narrow strands, for example, wires with a polymer, is disclosed whereby a rapidly reacting polymer formulation is sprayed onto the narrow strands whereupon it hardens in a very short period of time and another layer of strands is then placed atop the firs |
