Process for compounding metal salts in elastomers
US6194504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1997 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 28, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2421/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making MA.sub.n salt in particulate form having improved dispersibility in elastomers, wherein M is a metal selected from zinc, calcium, and magnesium or other metals, A is acrylate or methacrylate, and n is 1-4, comprising contacting said salt with a solution of polymer in organic solvent, and then removing the solvent, thereby encapsulating said salt with said polymer. The resultant encapsulated metal acrylate salts, methods of use, and the resultant elastomers are also disclosed. The salts are especially useful as scorch retarders used in the processing of elastomers in a two roll mill or Banbury type internal mixer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.