Title of Invention | A MELT POLYMERIZATION METHOD FOR THE PREPARATION OF SILOXANE COPOLYCARBONATES AND SILOXANE COPOLYCARBONATES PER SE. |
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Abstract | TITLE: A MELT POLYMERIZATION METHOD FOR THE PREPARATION OF SILOXANE COPOLYCARBONATES AND SILOXANE COPOLYCARBONATES PER SE. A melt polymerization method for the preparation of silioxane copolycarbonates which comprises reacting at least one aromatic dihydroxy compound, a carbonic acid diester, a hydroxhyaryl terminated polydiorganosiloxane and a catalyst, chosed from the group consisting of quaternary; ammonium compound, alkali metal compound, alkaline earth metal compound or combinations thereof, in the presence of a salt, characterized in that the salt in aqueous solution at about 0.1 molar has a pH in the range between about 0 and 7, and the hydroxyaryl terminated polydiorganosiloxane is present in a range between about 0.1 weight percent and about 40 weight percent of siloxane copolycarbonate, (FIG. - nil) |
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IN-PCT-2002-938-KOL-FORM-27.pdf
in-pct-2002-938-kol-granted-abstract.pdf
in-pct-2002-938-kol-granted-assignment.pdf
in-pct-2002-938-kol-granted-claims.pdf
in-pct-2002-938-kol-granted-correspondence.pdf
in-pct-2002-938-kol-granted-description (complete).pdf
in-pct-2002-938-kol-granted-form 1.pdf
in-pct-2002-938-kol-granted-form 18.pdf
in-pct-2002-938-kol-granted-form 2.pdf
in-pct-2002-938-kol-granted-form 3.pdf
in-pct-2002-938-kol-granted-form 5.pdf
in-pct-2002-938-kol-granted-gpa.pdf
in-pct-2002-938-kol-granted-letter patent.pdf
in-pct-2002-938-kol-granted-reply to examination report.pdf
in-pct-2002-938-kol-granted-specification.pdf
Patent Number | 219084 | |||||||||||||||
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Indian Patent Application Number | IN/PCT/2002/938/KOL | |||||||||||||||
PG Journal Number | 17/2008 | |||||||||||||||
Publication Date | 25-Apr-2008 | |||||||||||||||
Grant Date | 23-Apr-2008 | |||||||||||||||
Date of Filing | 18-Jul-2002 | |||||||||||||||
Name of Patentee | GENERAL ELECTRIC COMPANY | |||||||||||||||
Applicant Address | 1 RIVER ROAD, SCHENECTADY, NY 12345, UNITED STATES OF AMERICA, A CORPORATION OF THE STATE OF NEW YORK. | |||||||||||||||
Inventors:
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PCT International Classification Number | C08G 64/18 | |||||||||||||||
PCT International Application Number | PCT/US00/28688 | |||||||||||||||
PCT International Filing date | 2000-10-17 | |||||||||||||||
PCT Conventions:
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