Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1999-08-24
2000-08-08
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
526262, 525 73, 525205, 528327, C08G 7300, C08G 6900, C08F12240, C08F28300
Patent
active
061003662
ABSTRACT:
The present invention provides: a cyclic imino ether group containing polymer with an extremely reduced amount of residual cyclic imino ether group containing monomer; and a production process therefor. The cyclic imino ether group containing polymer is obtained by a process including the step of polymerizing a monomer component including a cyclic imino ether group containing monomer, and contains a cyclic imino ether group containing monomer unit in the ratio of not less than 0.1 mol %, wherein the amount of the cyclic imino ether group containing monomer remaining in the polymer is not more than 15 ppm. The production process for a cyclic imino ether group containing polymer comprises the steps of: radical-polymerizing a monomer component including a cyclic imino ether group containing monomer to obtain a cyclic imino ether group containing polymer; devolatilizing the resultant polymer by vacuum heating treatment to remove volatile components from the polymer; and adding a compound, reactable with the cyclic imino ether group, to the polymer in the devolatilizing step.
REFERENCES:
patent: 4686279 (1987-08-01), Nagtzaam et al.
patent: 5191046 (1993-03-01), Iwamoto et al.
patent: 5559187 (1996-09-01), Maeda et al.
Fujioka Kazumi
Nakata Yoshitomo
Hampton-Hightower P.
Nippon Shokubai Co. , Ltd.
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