Process for making poly(2-methyl-1,3-propanediol)

Details Process for making poly(2-methyl-1,3-propanediol) Process for making poly(2-methyl-1,3-propanediol)

1996-05-22

1997-08-19

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4101

Patent

active

056590890

ABSTRACT:
A process for making poly(2-methyl-1,3-propanediol) is disclosed. The process comprises heating 2-methyl-1,3-propanediol in the presence of an etherification catalyst at a temperature within the range of about 100.degree. C. to about 210.degree. C. The resulting poly(2-methyl-1,3-propanediol) has a degree of polymerization within the range of about 2 to about 20, and a number average molecular weight within the range of about 150 to about 2000. The process enables the synthesis of dimers and trimers of 2-methyl-1,3-propanediol, which are useful as reactive diluents or chain extenders for polyurethanes and as diol components for unsaturated polyester resins and thermoplastic polyesters.

REFERENCES:
patent: 2520733 (1950-08-01), Morris et al.
patent: 3006926 (1961-10-01), Case et al.
patent: 4762141 (1988-08-01), Motoi et al.
patent: 5081268 (1992-01-01), Grey et al.

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