Reversibly cross-linkable resin

Patent metadata

Field	Value
Publication number	US-9828482-B2
Application number	US-201514748388-A
Country	US
Kind code	B2
Filing date	Jun 24, 2015
Priority date	Jun 24, 2014
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

Reversibly cross-linkable foam is provided. The reversibly cross-linked foam includes a first polymeric material, at least one reversibly cross-linkable monomer polymerized with the first polymeric material, and at least one blowing agent. The reversibly cross-linkable co-polymeric foam is thermally stable at temperatures of at least 10 degrees higher than otherwise identical polymeric foam that does not include the reversibly cross-linkable agent polymerized with the first polymeric material.

First claim

The invention claimed is:

1. A reversibly cross-linked foam comprising:
a blowing agent;
a first polymeric material; and
at least one reversibly cross-linkable agent polymerized with said first polymeric material, forming a reversibly cross-linkable copolymer,
wherein said reversibly cross-linkable agent comprises a metal-ligand complex ion and the ligand is at least one of a polyester (meth)acrylate and a polyurethane (meth)acrylate, and
wherein said reversibly cross-linked foam is thermally stable at temperatures of at least 10° F. higher than an otherwise identical foam that does not include the reversibly cross-linkable agent.

2. A reversibly cross-linked foam comprising:
a blowing agent;
a first polymeric material; and
at least one reversibly cross-linkable agent polymerized with said first polymeric material, forming a reversibly cross-linkable copolymer,
wherein said reversibly cross-linkable agent comprises a metal-ligand complex ion,
wherein said metal-ligand complex ion comprises a terpyridine ligand reacted with a metal ion, and
wherein said reversibly cross-linked foam is thermally stable at temperatures of at least 10° F. higher than an otherwise identical foam that does not include the reversibly cross-linkable agent.

3. The reversibly cross-linked foam of claim 1 , wherein said first polymeric material comprises an alkenyl aromatic polymer.

4. The reversibly cross-linked foam of claim 3 , wherein said alkenyl aromatic polymer is derived from one or more of styrene, α-methylstyrene, ethylstyrene, vinyl benzene, vinyl toluene, chlorostyrene, and bromostyrene.

5. The reversibly cross-linked foam of claim 1 , wherein said reversibly cross-linkable copolymer is further blended with a second polymeric material prior to or during formation of said reversibly cross-linked foam.

6. The reversibly cross-linked foam of claim 5 , wherein said second polymeric material is one or more of alkenyl aromatic polymers, polyvinyl chloride (“PVC”), chlorinated polyvinyl chloride (“CPVC”), polyethylene, polypropylene, polycarbonates, polyisocyanurates, polyetherimides, polyamides, polyesters, polycarbonates, polymethylmethacrylate, polyphenylene oxide, polyurethanes, phenolics, polyolefins, styrene acrylonitrile (“SAN”), acrylonitrile butadiene styrene, acrylic/styrene/acrylonitrile block terpolymer (“ASA”), polysulfone, polyphenylene sulfide, acetal resins, polyaramides, polyimides, polyacrylic acid esters, copolymers of ethylene and propylene, copolymers of styrene and butadiene, copolymers of vinylacetate and ethylene, rubber modified polymers, thermoplastic polymer blends, and combinations thereof.

7. The reversibly cross-linked foam of claim 1 , wherein said blowing agent includes one or more of an HFO, HFC, HCFO, and CO 2 .

8. The reversibly cross-linked foam of claim 7 , wherein said blowing agent is included in an amount from about 1.0 to 15.0 weight percent of the foamable composition.

9. The reversibly cross-linked foam of claim 1 , further including at least one infrared attenuating agent.

10. The reversibly cross-linked foam of claim 1 , further including one or more of an infrared attenuating agent, a nucleating agent, a plasticizing agent, a fire retardant, a pigment, an elastomer, an extrusion aid, an antioxidant, a filler, an antistatic agent, a biocide, and/or a UV absorber.

11. The reversibly cross-linked foam of claim 2 , wherein said first polymeric material comprises an alkenyl aromatic polymer.

12. The reversibly cross-linked foam of claim 11 , wherein said alkenyl aromatic polymer is derived from one or more of styrene, α-methylstyrene, ethylstyrene, vinyl benzene, vinyl toluene, chlorostyrene, and bromostyrene.

13. The reversibly cross-linked foam of claim 2 , wherein said reversibly cross-linkable copolymer is further blended with a second polymeric material prior to or during formation of said reversibly cross-linked foam.

14. The reversibly cross-linked foam of claim 13 , wherein said second polymeric material is one or more of alkenyl aromatic polymers, polyvinyl chloride (“PVC”), chlorinated polyvinyl chloride (“CPVC”), polyethylene, polypropylene, polycarbonates, polyisocyanurates, polyetherimides, polyesters, polycarbonates, polymethylmethacrylate, polyphenylene oxide, polyurethanes, phenolics, polyolefins, styrene acrylonitrile (“SAN”), acrylonitrile butadiene styrene, acrylic/styrene/acrylonitrile block terpolymer (“ASA”), polysulfone, polyphenylene sulfide, acetal resins, polyamides, polyaramides, polyimides, polyacrylic acid esters, copolymers of ethylene and propylene, copolymers of styrene and butadiene, copolymers of vinylacetate and ethylene, rubber modified polymers, thermoplastic polymer blends, and combinations thereof.

15. The reversibly cross-linked foam of claim 2 , wherein said blowing agent includes one or more of an HFO, HFC, HCFO, and CO 2 .

16. The reversibly cross-linked foam of claim 15 , wherein said blowing agent is included in an amount from about 1.0 to 15.0 weight percent of the foamable composition.

17. The reversibly cross-linked foam of claim 2 , further including at least one infrared attenuating agent.

18. The reversibly cross-linked foam of claim 2 , further including one or more of an infrared attenuating agent, a nucleating agent, a plasticizing agent, a fire retardant, a pigment, an elastomer, an extrusion aid, an antioxidant, a filler, an antistatic agent, a biocide, and/or a UV absorber.

Assignees

• Owens Corning Intellectual Capital Llc

Inventors

• Gawryla Matthew Daniel

Classifications

• C08J2325/08

  Copolymers of styrene (C08J2329/08, C08J2335/06, C08J2355/02 take precedence) · CPC title

• C08J2201/026

  Crosslinking before of after foaming · CPC title

• C08J2203/06

  CO2, N2 or noble gases · CPC title

• C08J2300/30

  Polymeric waste or recycled polymer · CPC title

• C08J9/0095

  Mixtures of at least two compounding ingredients belonging to different one-dot groups · CPC title