Claims
- 1. A liquid vinylidene-terminated polymer having a molecular weight of from about 1000 to about 20,000 of the structure ##STR18## wherein B is a polymeric backbone of carbon-carbon, polyether, or polysulfide linkages; Z is selected from the group consisting of --O--, --S--, --NH--, ##STR19## and --O--CH.sub.2 --CH.sub.2 --; A is a bivalent radical selected from the group consisting of ##STR20## CH.sub.2 --O--CH.sub.2, and --CH.sub.2 --O--; and R is hyrogen or an alkyl radical containing 1 to 4 carbon atoms, said polymer having been vulcanized using a curative selected from the group consisting of dithiols, polythiols, primary and secondary amines, and primary and secondary polyamines.
- 2. A vulcanized polymer of claim 1 wherein B consists of carbon-carbon linkages derived from polymerized units of vinylidene monomer selected from the group consisting of (a) monoolefins containing 2 to about 8 carbon atoms, (b) dienes containing 4 to about 10 carbon atoms, (c) vinyl aromatics, (d) vinyl nitriles, (e) vinyl and allyl esters, (f) vinyl and allyl ethers, (g) divinyls and diacrylates, and (h) acrylates of the formula ##STR21## wherein R' is --H, --CH.sub.3, or --C.sub.2 H.sub.5 and R" is selected from the group consisting of an alkyl radical containing 1 to 18 carbon atoms, an alkoxyalkyl radical, an alkylthioalkyl radical, and a cyanoalkyl radical each containing 2 to about 12 carbon atoms.
- 3. A vulcanized polymer of claim 2 wherein B consists of polymerized units of diene monomers, and Z is ##STR22##
- 4. A vulcanized polymer of claim 3 wherein the diene monomer is 1,3-butadiene and A is ##STR23##
- 5. A vulcanized polymer to claim 2 wherein B consists of polymerized units of butadiene and acrylonitrile monomers and Z is ##STR24##
- 6. A vulcanized polymer of claim 2 wherein B consists of polymerized units of acrylate monomers and Z is ##STR25##
- 7. A polymer of claim 6 wherein the acrylate monomer is n-butyl acrylate and A is ##STR26##
- 8. A polymer of claim 1 of the formula ##STR27## wherein R is defined as above and x is from 5 to about 40.
- 9. A polymer of claim 8 wherein A is ##STR28## and x is 30.
- 10. A vulcanized polymer of claim 1 wherein the curative is used in combination with 0.01 to about 3 parts by weight per 100 parts of said liquid polymer of a tertiary amine cure catalyst.
- 11. A vulcanized polymer of claim 8 wherein the curative employed is a thiol.
Parent Case Info
This is a division of Application Ser. No. 738,195, filed Nov. 3, 1976, now U.S. Pat. No. 4,129,713, which is a division of Ser. No. 585,962 filed June 11, 1975, U.S. Pat. No. 4,013,710; which is a division of Ser. No. 292,926, filed Sept. 28, 1972, which is now U.S. Pat. No. 3,910,992.
US Referenced Citations (5)
Divisions (3)
|
Number |
Date |
Country |
Parent |
738195 |
Nov 1976 |
|
Parent |
585962 |
Jun 1975 |
|
Parent |
292926 |
Sep 1972 |
|