Claims
- 1. A granular, elastomeric, flame retardant chorosulfonated alkylene-alkyl acrylate copolymer having a tensile modulus of less than about 2,000 psi and a crystallinity of less than about 10 percent, prepared by reacting an alkylene-alkyl acrylate copolymer with a gaseous chlorosulfonating agent in the absence of solvent or diluent wherein the copolymer has about one to about 50 percent by weight combined alkyl acrylate; a total chlorine content of about 5 to about 55 percent by weight; and a sulfur content of about 0.1 to about 10 percent by weight.
- 2. A granular, elastomeric, flame retardant alkylene-alkyl acrylate copolymer as defined in claim 1 wherein the gaseous chlorosulfonating agent is a combination of sulfur dioxide and chlorine.
- 3. A granular, elastomeric, flame retardant chlorosulfonated alkylene-alkyl acrylate copolymer as defined in claim 1 wherein the alkylene-alkyl acrylate copolymer has about 2 to about 20 percent by weight combined alkyl acrylate.
- 4. A granular, elastomeric, flame retardant chlorosulfonated alkylene-alkyl acrylate copolymer as defined in claim 1 wherein the alkylene-alkyl acrylate copolymer is an ethylene-ethyl acrylate copolymer.
- 5. A granular, elastomeric, flame retardant alkylene-alkyl acrylate copolymer as defined in claim 1 having a crystallinity of 0 to about 5 percent.
- 6. A granular, elastomeric, flame retardant alkylene-alkyl acrylate copolymer as defined in claim 1 having a total chlorine content of about 15 to about 40 percent by weight and a sulfur content of about 0.5 to about 5 percent by weight.
- 7. A granular, elastomeric, flame retardant alkylene-alkyl acrylate copolymer as defined in claim 6 wherein the alkylene-alkyl acrylate copolymer is an ethylene-ethyl acrylate copolymer.
Parent Case Info
This application is a continuation of application Ser. No. 680,568 filed Dec. 11, 1984, now abandoned, which in turn is continuation-in-part of copending application Ser. No. 514,336, filed July 15, 1983 now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (3)
Number |
Date |
Country |
111832 |
Jul 1983 |
JPX |
49207 |
Mar 1984 |
JPX |
1385778 |
Feb 1975 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Hypalon, Dupont Bulletin, HP-310.1. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
680568 |
Dec 1984 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
514336 |
Jul 1983 |
|