Foam compositions

• US 10,017,605 B2
• Filed: 05/10/2016
• Issued: 07/10/2018
• Est. Priority Date: 04/21/2014
• Status: Active Grant

• Current Assignee: Holcim Technology, Ltd. (Holcim Limited)
• Original Assignee: Gaco Western, LLC (Bridgestone Corporation)
• Inventors: Trumbo, David L., Krogman, Nick, Nelson, Daniel S.
• Primary Examiner(s): Zemel, Irina S
• Application Number:
  US15/151,350
• Publication Number:
  US 20160272754A1
• Time in Patent Office: 791 Days
• CPC Class Codes: C08G 12/00 Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen aminophenols C08G8/16
• CPC Class Codes: C08G 2261/334 containing heteroatoms
• CPC Class Codes: C08G 61/12 Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
• CPC Class Codes: C08G 63/00 Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule polyester-amides C08G69/44; polyester-imides C08G73/16
• CPC Class Codes: C08G 73/00 Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00 polycarbodiimides prepared from isocyanates C08G18/025, C08G18/797
• CPC Class Codes: C08J 2203/10 Water or water-releasing compounds
• CPC Class Codes: C08J 2203/142 Halogenated saturated hydrocarbons, e.g. H3C-CF3
• CPC Class Codes: C08J 2205/10 Rigid foams
• CPC Class Codes: C08J 2207/04 Aerosol, e.g. polyurethane foam spray
• CPC Class Codes: C08J 2300/105 containing carboxyl groups
• CPC Class Codes: C08J 2300/202 Dendritic macromolecules, e.g. dendrimers or hyperbranched polymers
• CPC Class Codes: C08J 2361/20 Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
• CPC Class Codes: C08J 2365/00 Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain C08J2307/00 - C08J2357/00, C08J2361/00 take precedence; Derivatives of such polymers
• CPC Class Codes: C08J 2367/00 Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
• CPC Class Codes: C08J 2379/00 Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
• CPC Class Codes: C08J 9/02 using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
• CPC Class Codes: C08J 9/12 by a physical blowing agent
• CPC Class Codes: C08J 9/125 Water, e.g. hydrated salts
• CPC Class Codes: C08J 9/146 only fluorine as halogen atoms

Abstract

Foam compositions are provided. The compositions are prepared from multi-functional acetoacetate esters and multi-functional amines or acrylates. The foam compositions can include one or more additives. The foam compositions can be used for home and commercial insulation, air sealing, sound proofing, structural improvement, and exterior roofing, among other applications. The foam compositions provide advantages of being isocyanate free and offer reduced exposure to isocyanate.

Claims

1. A method of preparing a foam, comprising reacting a compound of formula (a) with a compound of formula (b);

2. The method of claim 1, wherein the compound of formula (a) and the compound of formula (b) are brought from their respective first and second conduits to a mixing chamber under pressure from an electric or hydraulic pump, the compound of formula (a) and the compound of formula (b) forming a reaction mixture.

3. The method of claim 2, wherein the pressure is 500-2,000 psi.

4. The method of claim 2, wherein the reaction mixture is pumped from the mixing chamber through a third conduit to a nozzle or orifice and expelled through the nozzle or orifice.

5. The method of claim 4, wherein the third conduit is heated to a temperature of 70°

F. to 200°

F.

6. The method of claim 1, wherein water produced as a consequence of reaction between compound (a) and compound (b) acts as a chemical blowing agent.