Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1978-06-08
1980-08-12
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
260463, 264204, 525469, 528469, 528174, 528196, 528199, 528202, C08G 6362
Patent
active
042174376
ABSTRACT:
The present invention relates to the transesterification of the carbonic acid aryl esters obtainable according to German Published Patent Specification No. 2,650,533 with an excess of diphenol for the preparation of polyalkylene oxide-diol bis-diphenol carbonates lengthened via carbonate groups. The present invention also relates to the polyalkylene oxide-diol bis-diphenol carbonates, lengthened via carbonate groups, obtained according to the invention and their use for the preparation of polyether/polycarbonates. Finally, the present invention relates to the polyether/polycarbonates, obtained according to the invention, with an improved phase separation between the elastomeric segment and hard segment, which leads to better technological properties of the corresponding polycarbonate elastomers.
REFERENCES:
patent: 3030331 (1962-04-01), Goldberg
patent: 3030335 (1962-04-01), Goldberg
patent: 3069385 (1962-12-01), Stevens
patent: 3161615 (1964-12-01), Goldberg
patent: 3169121 (1965-02-01), Goldberg
patent: 3207814 (1965-09-01), Goldberg
patent: 3220976 (1965-11-01), Goldberg
patent: 3287442 (1966-11-01), Caldwell
patent: 3290409 (1966-12-01), Munro
patent: 3449467 (1969-06-01), Wynstra
patent: 3461187 (1969-08-01), Cantrill
patent: 3549682 (1970-12-01), Vernaleren et al.
patent: 3553167 (1971-01-01), Schnell et al.
patent: 3714125 (1973-01-01), Shima et al.
patent: 3843708 (1974-10-01), Matzner
patent: 3843752 (1974-10-01), Katayama et al.
patent: 4105633 (1978-08-01), Swart et al.
Journal of Polymer Science: Part C, No. 4, pp. 707-730, (1963), Goldberg.
Journal of Polymer Science: Part A, vol. 3, pp. 2189-2203, (1965), Merrill.
Journal of Polymer Science, vol. 55, pp. 343-352, (1961).
Bartl Herbert
Freitag Dieter
Konig Klaus
Lindner Christian
Schreckenberg Manfred
Bayer Aktiengesellschaft
Harsh Gene
Pertilla Theodore E.
Pope Lawrence S.
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