Patent US10450404

Production methods of polyester and polyurethane
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US10450404

1. A method for producing a polyester, comprising: (6) (3)

performing a reaction by using, as raw materials, a dicarboxylic acid component, and a diol produced directly from a biomass-resource-derived substance by a fermentation process,

wherein a content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the diol is from 0.01 ppm to 12 ppm by mass, and

wherein said diol produced directly from a biomass-resource-derived substance by a fermentation process is selected from the group consisting of ethylene glycol, 2-methyl-1,3-propanediol, neopentyl glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, and isosorbide.

2. The method for producing a polyester according to claim 1, (0) (2)

3. The method for producing a polyester according to claim 1, (0) (2)

4. The method for producing a polyester according to claim 1, (0) (2)

5. The method for producing a polyester according to claim 1, (1) (3)

wherein the diol is 1,4-butanediol,

the dicarboxylic acid component is at least one of a terephthalic acid and a terephthalic acid alkylate, and

the polyester is polybutylene terephthalate.

6. The method for producing a polyester according to claim 5, (0) (1)

7. The method for producing a polyester according to claim 1, (0) (1)

8. The method for producing a polyester according to claim 1, further comprising, prior to said performing a reaction, subjecting a biomass resource to a fermentation process wherein said fermentation process comprises pretreating said biomass resource and further subjecting the biomass resource to saccharification. (0)

9. A method for producing a polyester polyol, comprising: (6) (3)

performing reaction by using, as raw materials, a dicarboxylic acid component, and a diol produced directly from a biomass-resource-derived substance by a fermentation process,

wherein a content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the diol is from 0.01 ppm to 12 ppm by mass, and

10. The method for producing a polyester polyol according to claim 9, (1) (2)

wherein the cyclic carbonyl compound having a carbon atom number of 5 or 6 contains a compound having a structure represented by the following formula (I):

wherein in formula (I), each of R₁to R₄independently represents a hydrogen atom, a methyl group, a formyl group or an acetyl group, with the proviso that one of R₁to R₄is a formyl group or an acetyl group, and the total number of carbon atoms contained in respective groups of R₁to R₄is 2 or less.

13. The method for producing a polyester polyol according to claim 10, (1) (3)

wherein the diol is 1,4-butanediol,

the dicarboxylic acid component is adipic acid, and

the polyester polyol is polybutylene adipate.

14. The method for producing a polyester polyol according to claim 13, (0) (1)

11. The method for producing a polyester polyol according to claim 9, (0) (2)

12. The method for producing a polyester polyol according to claim 9, (0) (2)

15. The method for producing a polyester polyol according to claim 9, (0) (1)

16. The method for producing a polyester polyol according to claim 9, further comprising prior to said performing reaction subjecting a biomass resource to a fermentation process wherein said fermentation process comprises pretreating said biomass resource and further subjecting the biomass resource to saccharification. (0)

17. A method for producing a polyurethane, comprising: (0) (1)

18. A method for producing a polyurethane, comprising: (6) (3)

reacting a polyester polyol and an isocyanate compound,

wherein the polyester polyol is produced by an esterification and/or transesterification reaction of a dicarboxylic acid and a diol, wherein the diol is produced directly from a biomass-resource-derived substance by a fermentation process and a content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the diol is from 0.01 ppm to 12 ppm by mass, and

19. The method for producing a polyurethane according to claim 18, (0) (2)

20. The method for producing a polyurethane according to claim 18, (0) (2)

21. The method for producing a polyurethane according to claim 18, (0) (2)

22. The method for producing a polyurethane according to claim 18, (1) (2)

24. The method for producing a polyurethane according to claim 18, (0) (1)

25. The method for producing a polyurethane according to claim 18, further comprising prior to said reacting a polyester polyol and an isocyanate compound, subjecting a biomass resource to a fermentation process wherein said fermentation process comprises pretreating said biomass resource and further subjecting the biomass resource to saccharification to produce said diol. (0)

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Patent US10450404

Production methods of polyester and polyurethane

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