Claims
- 1. A stabilizer composition to provide long term stability to vinyl halide compositions at moderate aging temperatures of about 180.degree. F. to 275.degree. F., said stabilizer composition comprising sodium perchlorate and calcium silicate.
- 2. The composition of claim 1 wherein the ratio of sodium perchlorate to calcium silicate is approximately 1:8 to approximately 3:4 by weight.
- 3. The composition of claim 1 wherein the ratio of sodium perchlorate to calcium silicate is approximately 1:5 to approximately 4:10 by weight.
- 4. The composition of claim 1 comprising a water solution containing approximately 60 to 75 weight percent of sodium perchlorate, wherein the ratio of said solution to said calcium silicate is approximately 1:5 to 1:1 by weight.
- 5. The composition of claim 4 wherein the ratio of said solution to said calcium silicate is approximately 1:3 to 5:7 by weight.
- 6. The composition of claim 4 wherein the ratio of said solution to said calcium silicate is about 5:8 by weight.
- 7. The composition of claim 4 wherein the ratio of said solution to said calcium silicate is approximately 3:8 by weight.
Parent Case Info
This is a continuation of application Ser. No. 525,443, filed May 18, 1990 now U.S. Pat. No. 5,034,443 issued Jul. 23, 1991.
US Referenced Citations (7)
Foreign Referenced Citations (6)
Number |
Date |
Country |
52-77158 |
Jun 1977 |
JPX |
53-11948 |
Feb 1978 |
JPX |
53-13659 |
Feb 1978 |
JPX |
63-63724 |
Mar 1988 |
JPX |
7513344 |
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NLX |
1588405 |
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GBX |
Non-Patent Literature Citations (1)
Continuations (1)
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Number |
Date |
Country |
Parent |
525443 |
May 1990 |
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