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| 1-halovinylazoles and fungicides containing them |
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| Aluminium soldering composition |
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Flame retardants for polymers
| Details |
Inventors: Murtha, Timothy P.; Gray, Roy A.;
Assignee: Phillips Petroleum Company (Bartlesville, OK)
Primary Examiner: Hoke; V.P.
Assistant Examiner:
Attorney, Agent or Firm:
Novel compounds having the formula ##EQU1## WHEREIN N IS AN INTEGER, 0 TO 3 AND Z is selected from bromine or ##EQU2## the proportion of the selected Br-- and RCO.sub.2 --being such that the weight percent Br in the compound will be in range 20 to 70, the R in the carboxylate group containing from 1 to 17 carbons and being selected from alkyl, cycloalkyl, aryl, and combinations thereof such as alkaryl and aralkyl, the R groups being the same or different. The now preferred compound 1,7-diacetoxy-2,2,6,6-tetra(bromomethyl)-4-oxaheptane (DATBOH) is prepared by reaction of dipentaerythritol, acetic anhydride and anhydrous hydrogen bromide at about 100.degree. C., extracting with a solvent, treating with an alkaline wash, and recovering the product as a viscous liquid. Alternately, the corresponding hexaacetate can be brominated using hydrogen bromide. The product compounds are useful as flame retardants, for example, for polymers, e.g. polyolefins, more particularly polypropylene. Antimony trioxide and other inorganic oxides and other compounds known in the art as improving the effect of a bromine-containing compound can be incorporated into the composition of the invention, to increase the flame retardant effect of the compound of the invention. |
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DETAILED DESCRIPTION We claim: 1.
A flame-retardant composition comprising 1,11-diacetoxy-6-acetoxymethyl-2,2,6,10,10-penta(bromomethyl)-4,8-dioxaund ecane and a synthetic polymer plastic.
2.
A composition according to claim 1 wherein the plastic is selected from a polyolefin, a polyamide, a polyurethane, and a polyurea.
3.
A composition according to claim 2 wherein the polyolefin is a polymer of a mono-alpha-olefin having the general formula CH.
sub.
2 = CHR wherein R represents hydrogen, an aryl radical, an alkyl radical and combinations thereof such as alkaryl and aralkyl having up to a total of 10 carbon atoms in each R group.
4.
A composition according to claim 3 wherein the polyolefin is polypropylene.
5.
A composition according to claim 2 wherein the plastic is polypropylene and the 1,11-diacetoxy-6-acetoxymethyl-2,2,6,10,10-penta(bromomethyl)-4,8-dioxaund ecane is incorporated with the plastic in an amount in the approximate range of from about 1 to about 15 parts per hundred of the plastic.
Description:
This invention relates to a novel compound.
It also relates to a novel composition of matter containing said compound.
Further, the invention relates to a flame-retardant containing composition.
More particularly, the invention relates to a plastic or polyolefin containing a flame retardant, bromine containing compound.
In one of its concepts the invention provides a compound having the formula ##EQU3## WHEREIN N IS AN INTEGER, 0 TO 3, AND Z is selected from bromine or ##EQU4## the proportion of the selected Br-- and RCO.
sub.
2 -- being such that the weight percent Br in the compound will be in the range 20 to 70, the R in the carboxylate group containing from 1 to 17 carbons and being selected from alkyl, cycloalkyl, aryl, and combinations thereof such as alkaryl and aralkyl, the R groups being the same or different.
In another of its concepts the invention provides a flame-retarded composition comprising a flame-retarding compound of the invention and a plastic or polyolefin, e
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Manufacturing Materials 
