Polyol polymers, meso-erythritol polymers and their...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From organic oxygen-containing reactant

Reexamination Certificate

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Reexamination Certificate

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06838544

ABSTRACT:
A polyol polymer having a greater number of hydroxy groups, an aliphatic acid ester of a polyol polymer having a greater number of hydroxy groups, and an aliphatic ether of a polyol polymer having a greater number of hydroxy groups are provided. A polymer obtained by polymerizing a polyol containing meso-erythritol, and an aliphatic acid ester and an aliphatic ether of the polymer are provided.

REFERENCES:
patent: 2122089 (1938-06-01), Conrad
patent: 2520671 (1950-08-01), Witcoff et al.
patent: 3717612 (1973-02-01), Babayan
patent: 4350781 (1982-09-01), Rasshofer et al.
patent: 5637557 (1997-06-01), Jahnke et al.
patent: 5731476 (1998-03-01), Shawl et al.
patent: 2040297 (1980-08-01), None
patent: 11269116 (1999-10-01), None
patent: 82891 (1956-10-01), None
Chemical abstracts accession No. 149-32-6, meso-erythritol or erythritol, 1967.

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