Claims
- 1. The process for the production of poly(allyl alcohol) polymer by the following steps:
- (a) mixing 1 part by weight of granular silicon acid with 2 parts by weight of an allyl halide;
- (b) agitating said mixture in a closed system and keeping the temperature between 0.degree. to 100.degree. C. for about 20 to 40 minutes at ambient pressure, thereby producing poly(allyl halide) polymer;
- (c) dissolving poly(allyl halide) polymer with a solvent, allyl chloride monomer;
- (d) filtering the solvent and poly(allyl halide) polymer from the silicon acid;
- (e) evaporating the solvent, allyl chloride, by heating, thereby recovering the poly(allyl halide) polymer;
- (f) adding 2 to 4 parts by weight of water and 1 mol of alkali compound per mol of halide in the poly(allyl halide) polymer;
- (g) heating said mixture to 80.degree. to 100.degree. C. while agitating for about 30 to 45 minutes, thereby producing poly(allyl alcohol) polymer;
- (h) filtering off water and salt; thereby
- (i) recovering poly(allyl alcohol) polymer.
- 2. The process of claim 1 wherein the silicon acid is selected from the group consisting of orthosilicic acid, metasilicic acid, gelatinous silicic acid, silicoformic acid and mixtures thereof.
- 3. The process of claim 1 wherein the allyl halide is selected from the group consisting of allyl chloride, allyl bromide and mixtures thereof.
- 4. The process of claim 1 wherein the alkali compound is selected from the group consisting of sodium hydroxide, sodium carbonate, potassium carbonate and mixtures thereof.
- 5. The process for the production of poly(allyl alcohol) polymer by the following steps:
- (a) admixing 1 part by weight of silicon acid, 2 to 4 parts by weight of water, an alkali compound in the amount of mols equal to the mols of halide present in the allyl halide compound and 2 parts by weight of an allyl halide compound;
- (b) agitating the mixture at ambient temperature and pressure for 20 to 40 minutes; thereby
- (c) producing poly(allyl alcohol) polymer;
- (d) removing the poly(allyl alcohol) polymer after it floats to the top of the water; thereby
- (e) recovering poly(allyl alcohol) polymer.
- 6. The process of claim 4 wherein the silicon acid is selected from the group consisting of orthosilicic acid, metasilicic acid, gelatinous silicic acid, silicoformic acid and mixtures thereof.
- 7. The process of claim 4 wherein the alkali compound is selected from the group consisting of sodium hydroxide, sodium carbonate, potassium carbonate, and mixtures thereof.
- 8. The process of claim 4 wherein the allyl halide is selected from the group consisting of allyl chloride, allyl bromide and mixtures thereof.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a divisional of U.S. patent application Ser. No. 757,239, filed Jan. 6, 1977, which is a divisional of U.S. patent application Ser. No. 622,525, filed Oct. 15, 1975, which application is a continuation-in-part of my copending U.S. patent application, Ser. No. 551,534, filed Feb. 21, 1975, which is a continuation-in-part of my earlier U.S. patent application, Ser. No. 71,628, filed Sept. 11, 1970, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,240,227 |
Jan 1971 |
GBX |
Non-Patent Literature Citations (1)
Entry |
C.A. vol. 64, 593d/h, Allyl Alcohol, Chernyshev et al., or Trager et al. |
Divisions (2)
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Number |
Date |
Country |
Parent |
757239 |
Jan 1977 |
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Parent |
622525 |
Oct 1975 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
71628 |
Sep 1970 |
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