Claims
- 1. A solid, substantially inert, and stable borohydride blowing agent concentrate mixture prepared from a dried alkali metal borohydride and a dried inert resinous polymer in which reactive protonic hydrogen atoms are substantially absent; said concentrate mixture consisting essentially of from about 0.5% to 20% by weight of said alkali metal borohydride, less than about 0.1% absorbed water, balance essentially said dry inert resinous polymer.
- 2. The composition of claim 1 wherein:
- said alkali metal borohydride is included from about 2% to 10% by weight.
- 3. The composition of claim 1 wherein:
- said alkali metal borohydride is a member selected from the group consisting of sodium borohydride or potassium borohydride.
- 4. The composition of claim 1 wherein:
- said inert resinous polymer is a member selected from the group consisting of polyolefins, polydienes, polystyrene, polyphenylene oxide-styrene, polyacrylates, polyvinylchloride, or polyvinylacetate.
- 5. The composition of claim 1 wherein:
- said alkali metal borohydroxide is sodium borohydride.
Parent Case Info
This application is a continuation, of application Ser. No. 272,867, filed June 12, 1981, and now abandoned.
US Referenced Citations (12)
Non-Patent Literature Citations (1)
Entry |
L. J. Guilbault, "Polyolefin Stabilization with SBH, Maintains Product Quality During Melt Processing", P.S.P. Newsletter-Issue 4, Dec., 1980. |
Continuations (1)
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Number |
Date |
Country |
Parent |
272867 |
Jun 1981 |
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