Flame retardant mercaptocarboxylic acid esters of halogenated polyols

• US 4,081,598 A
• Filed: 05/16/1977
• Issued: 03/28/1978
• Est. Priority Date: 02/24/1975
• Status: Expired due to Term

• Current Assignee: W R Grace & Company - CONN (Standard Industries Holdings, Inc.)
• Original Assignee: WR Grace & Company
• Inventors: Morgan, Charles R., Kramm, David E.
• Primary Examiner(s): Garner, Vivian
• Application Number:
  US05/797,225
• Time in Patent Office: 316 Days
• Field of Search: 260/481 R, 260/399
• US Class Current: 560/147
• CPC Class Codes: C07C 323/00 Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
• CPC Class Codes: C08G 75/045 from mercapto compounds and unsaturated compounds
• CPC Class Codes: C08G 75/12 Polythioether-ethers C08G75/0245 takes precedence
• CPC Class Codes: D06M 13/252 Mercaptans, thiophenols, sulfides or polysulfides, e.g. mercapto acetic acid; Sulfonium compounds

Abstract

This invention is directed to novel halogen-containing polythiols which impart improved flame retardancy to radiation cured thiol-ene compositions.

Claims

1. As a composition of matter, a halogen-containing polythiol of the formula:

##STR12## wherein X is a halogen selected from the group consisting of Cl and Br, and R₁ is an alkyl group containing 1-16 carbon atoms.

2. As a composition of matter ##STR13##