The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Apr. 28, 1997
Walter R. Nagel, West Chester, PA (US);
C. Richard Costin, West Chester, PA (US);
Gary W. Ceska, Exton, PA (US);
Sartomer Technologies, Inc., West Chester, PA (US);
Abstract
A method of making MA,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.