C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/106, 402/131
C08G 18/34 (2006.01) C07C 125/06 (1980.01)
Patent
CA 1093571
ABSTRACT OF THE DISCLOSURE Glutarate-containing polyesterpolyols are produced by reaction of primary and/or secondary diols and/or polyols with dimethyl glutarate in the presence of a transesterifacation catalyst which does not have deleteri- ous effects on the behavior of such polyesterpolyols when they are employed in the subsequent preparation of poly- urethane compositions, nor on the properties of such derived polyurethane compositions. The ratios of reac- tants are controlled so as to obtain essentially complete conversion to hydroxyl terminated compositions of pre- determined molecular weight and hydroxyl functionality. An important modification of the above polyesterpolyols is that in which they are subsequently used as polyol intermediates in the preparation of glutarate-containing co-polyesters. These hydroxyl terminated glutarate polyesters and co-polyesters are used to produce a wide variety of polyurethane compositions which exhibit unexpected and extremely useful combinations of properties. The polyurethane compositions are useful us elastomers, foams, coatings, adhesives, thermoplastics, plasticizers, etc.
300418
Fabridyne Inc.
Macrae & Co.
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